The We-Vibe Sync O is one of the few couples vibrators I orgasm with hands-free during sex. Though no couples vibrator is as stimulating as a handheld like a wand vibrator or bullet vibrator, which have more power, and allow you to place the motor exactly where you want and press however hard you want. But the Sync O frees up your hands to engage more with your partner.

Because it has an adjustable hinge, I can find a comfortable, stimulating fit that maintains consistent contact with my clit. So the vibrations transfer from the motor to my body. Whereas entry-level models with a fixed shape like the Sync Go, the Sync Lite, the Romp Join, and others like them shift off my clit easily and hardly stimulate me during sex.

The Sync O’s internal arm differs a bit from other premium couples vibrators. Instead of the more bulbous arm of the Chorus and Sync 2, it uses a flexible silicone loop. You squeeze the sides of the loop together to insert it, and it gently expands back out to press against the sides of your vagina rather than the front wall. Because it is slim front-to-back, it leaves more room for penetration and does not feel as full. That makes the Sync O the most comfortable couples vibrator I’ve worn during sex for those who prefer a less girthy feel.

But that same loop is why the Sync O is less stimulating during sex than the Chorus and Sync 2. It has no G-spot motor, and the flexible loop does not press into my front wall the way those models’ rigid arms do. On bulbous models, my partner’s thrusting pushes the internal arm into my G-spot and adds pressure that makes orgasm easier for me.

The Sync O doesn’t do that. The loop also clamps less tightly during thrusting, so the clit arm can pivot slightly to the side and I have to grind more to get as good of stimulation. The clit vibrations are enough to get me there hands-free, but it takes more time and effort.

If the strongest hands-free stimulation during sex is what you care about most, choose the Chorus or Sync 2. The Sync 2 gives you that same during-sex stimulation for a little less, while the Chorus adds a second hinge for the best possibility of getting your ideal fit. Choose the Sync O if you want the couples vibrator that feels the most comfortable during sex.

In the next sections, I’ll cover the Romp Party’s clit-motor power and rumbliness in-depth.

Here’s the main conclusion:

The Romp Party falls in the middle of the panty-vibe pack on clit stimulation. Its motor is technically strong, but the straight design doesn’t transfer enough of that strength to my clit, and the vibrations are buzzy on the settings I actually use. In this price range, for a more stimulating panty vibe, go with the VeDO Niki if you want a physical remote, or the NS Novelties Techno Lucy if you want an app.

In the next sections, I’ll cover the Sync O’s clit vibration power and rumbliness in more depth.

Here’s the main conclusion:

The Sync O’s clit vibrations are strong for a hands-free couples vibrator. The adjustable hinge helps the vibrations transfer well to my clit, though it is still slightly less stimulating than the Chorus or Sync 2.

Its only moderately powerful compared to stronger panty vibrators or handheld vibrators like wands or even bullets, so those are more intense options if hands-free stimulaton during sex isn’t your priority.

The Romp Party has one of the strongest top settings of any panty vibrator I’ve tested, though its design doesn’t transfer all of that power to your clit. The motor reaches a 9 out of 10 in vibration strength at its highest setting. Of my panty vibrators, only the Lovense Ferri reaches a higher top power. The Romp Party is just behind it. Spread across 7 distinct power levels from a gentle 1 out of 10 warmup up to that 9 at the top, it has one of the widest power ranges of any panty vibrator in this price range.

But with a wearable, you can’t press harder for more intensity the way you can with a handheld – the toy’s shape and fit has to naturally deliver the motor’s strength to your body. This is where the Romp Party’s design works against it. Its strongest vibrations are at the middle of the toy rather than at the clit where most panty vibrators concentrate them, so I had to situate it up higher in my underwear to feel more of the vibrations. This felt a bit unnatural, and my underwear kept trying to push it out of that placement.

The Romp Party is also straight rather than contoured, so it doesn’t sit snugly against my clit the way better-fitting panty vibes with a curve do, like the Lovense Ferri and VeDO Niki. When I get the placement right, it’s reasonably stimulating, but getting it right takes more effort than I want from a hands-free toy and requires frequent readjustments.

So the Party feels less stimulating than the raw 9 out of 10 strength suggests. If you want a panty vibe in this price range that delivers more of its motor’s strength to your clit, the VeDO Niki is a better option – its top setting is a notch lower at 8 out of 10, but its body-contoured shape gets more of that power where you actually feel it, so I can orgasm with it hands-free. For the strongest motor and best vibration transfer of any panty vibrator I’ve tested, try the Ferri for about $40 more.

The We-Vibe Sync O’s motor has a broad power range that starts gently and reaches 6.75 out of 10 on high. That’s moderate for wearable vibrators overall, but tied for the strongest hands-free couples vibrator I’ve tested – the We-Vibe Chorus, Sync 2, and original Sync deliver nearly identical clit stimulation. However, these models add extra G-spot stimulation that the Sync O lacks.

Despite having only moderate power, the Sync O’s vibrations transfer well to my clit. The adjustable hinge keeps the clit arm pressed against me very well, unlike cheaper, flexible-only couples vibrators.

Moving around, it presses slightly less firmly than the Chorus and Sync 2, whose bulbous internal arm tilts the toy harder against the clit; but sitting or lying down, the contact is just as good. Since the Sync O doesn’t add extra internal pressure during penetration, the overall clit stim feels more moderate.

If wearable clit stimulation outside sex is your goal, a stronger panty vibrator like the Lovense Ferri is a better fit. Or a handheld like the Lovense Hyphy if you want control over placement and pressure instead of hands-free convenience.

We rate panty vibrators with rumbly vibrations higher than buzzy ones because most people prefer them, but it’s genuinely a personal preference.

The Romp Party is not very rumbly.

Its lowest power level is technically extremely rumbly at 59 Hz, but that’s the warmup setting – too gentle for the rumbliness to feel very stimulating. From there, frequency climbs as power does: the toy is moderately buzzy by its mid-range at around 100 Hz (about average for a panty vibe), and extremely buzzy at 127 Hz at the top. Since the vibrations don’t transfer well, I need to crank the power to feel anything, so most of my use with this toy is in the buzzy range.

If you care about rumbly vibrations, the VeDO Niki is one of the only truly rumbly panty vibrators and it’s an excellent choice in the same price range.

We rate rumbly vibrations higher than buzzy ones because it’s what most people prefer – rumbly vibrations travel deeper and spread through the body instead of staying near the surface – but it’s a personal preference, so consider what you like.

The Sync O’s motor is only decenetly rumbly – the Sync 2 aand Chorus each have deeper vibrations than the Sync O. Its lowest setting is extremely rumbly at around 56 Hz, the middle settings settle into neutral, but the upper settings do become buzzy, but I still enjoy how they feel.

It’s common for toys to become buzzy on higher settings, but the Sync O layers a low, rhythmic pulse over the steady vibrations that makes it feel a little deeper and fuller than the raw frequency suggests. That pulse is strongest through the first three-quarters of the range.

The Sync 2 and Chorus hold their rumble a little better at the top.

Like all panty vibrators, the Romp Party only stimulates your clit – not your G-spot. Since most women need clit stimulation to orgasm, a panty vibrator is often the right type of wearable. But if you’re interested in G-spot stimulation instead, see all our recommendations for the best egg vibrators here.

The We-Vibe Sync O’s internal arm does not vibrate. In general, couples vibrators’ internal arms are mainly there to help anchor the toy in place and provide a little extra pressure on your G-spot when combined with penetration. Even the ones with vibrating G-spot motors like the We-Vibe Chorus and We-Vibe Sync 2 are pretty gentle – though having a motor usually does make the internal arm’s shape a little more bulbous so they tend to provide better G-spot pressure.

The Romp Party isn’t controlled through an app. App control lets you create custom patterns, control multiple motors or toys, play long-distance, and lets a controlling partner see exactly what your toy is doing. If that matters to you, see our app-controlled recommendations in these guides:

• best remote and app-controlled vibrators (all types of vibrators)
• best wearable vibrators (wearables only).

In the next sections, I’ll cover the We-Vibe app in-depth – its close-range features, long-distance features, and its connectivity.

Here’s the main conclusion:

The We-Vibe app is buggy and bad – far behind Lovense’s app. But for hands-free stimulation during sex, I usually prefer the physical remote or on-toy button anyway. The app is a downside, but not a dealbreaker because We-Vibe still makes the only couples vibrators I reliably orgasm with.

In close-range control, it caps the Sync O’s motor at about 80% of its full power, and freezes often enough that I don’t trust it. Long-distance control is worse: the app often blocks you from even starting a call, and commands tend to stop working even when you do connect.

There’s no good couples vibrators with a good app. If app control matters more than hands-free stimulation during sex, go with a Lovense toy instead: the Lovense Ferri for clit stimulation, Lovense Lush 4 for G-spot stimulation, or Lovense Dolce for dual-stimulation.

The We-Vibe app’s close-range features are weak because the app is so buggy. If it worked properly, it would be a decent option for simple intensity control and preset patterns. But the current experience is frustrating.

The main controls are Single Vibe and Multi Vibe. Both let you drag an on-screen dot up or down to adjust intensity. Multi Vibe also lets you assign preset patterns to four corners, so you can quickly switch between steady vibration and a few favorites without digging through menus.

The Sync O’s max power in the app is only 80% of it’s true strength. This is a dealbreaker for using the app, considering the Sync O’s on the gentle-to-moderate end of strength anyway. You’ll have to use the remote or on-toy button to reach the toy’s full power.

The control dot also occasionally freezes and stops responding, and you have to close and reopen the app to get it going again. The disruptions are annoying.

There are 10 preset patterns to choose from in Single or Multi Vibe, each with a name and a waveform icon. Some are easy to read, like Pulse and Wave; others you have to try before you know what they do. One thing We-Vibe does better than Lovense here: you can adjust the power of each preset pattern. There’s also a Playlist feature for stringing patterns together, but you can’t feel what you’re building as you go, so it’s mostly guesswork.

Custom pattern creation is clunky. It’s buried several taps deep, you can’t feel the pattern as you draw it, and when I tried to play back one I’d made, it crashed the app every time. Lovense does pattern creation far better.

The sound and music modes are okay. Sound Mode uses your phone’s mic, and Music Mode syncs to songs saved locally on your phone – not Spotify or Apple Music, which is not very versatile. Both work, but the controls are poorly labeled, and there’s no minimum-volume threshold like Lovense offers to keep the toy quiet until the sounds around you are loud enough to cover it.

If you want excellent app control, Lovense is much better: choose the Lovense Ferri for clit stimulation, the Lovense Lush 4 for G-spot stimulation, or the Lovense Dolce for dual stimulation. But none of those are couples vibrators you can wear during sex, so if that’s your goal, just skip the app and use the Sync O’s remote.

The We-Vibe app’s long-distance features are too buggy to recommend. The controls break so often mid-session or even prevent you from connecting, so long-distance play is effectively unusable.

In theory it works like close-range control. Once you’re in a video call or chat, your partner is supposed to get the same Single Vibe and Multi Vibe controls you use nearby, plus the same basic pattern controls. You can even take back control of your own toy mid-session without ending the call – a useful touch that more apps should provide.

But the same close-range problems carry over, and some new, worse ones. In many sessions my partner and I tried, the toy just didn’t respond to what we did in the app – you drag the control dot expecting your partner’s vibrations to change, and nothing happens on the toy-end.

The power cap carries over too, so your partner can’t reach the Sync O’s strongest settings from the app. And you often can’t connect at all: both partners frequently show as “offline” even when you’re both in the app.

Even when you do connect, starting a video call is clunky – you send and accept four separate requests (the call, the camera, control of your toy, and control of theirs), and they often don’t go through. The video is blurry and choppy compared to Lovense’s.

Messaging itself is fine – you can send text, photos, voice notes, and video clips. And We-Vibe lets you save multiple partners, but it doesn’t offer Lovense’s anonymous one-time control links or auto-accept settings for a trusted partner.

For long-distance play, a Lovense toy like the Ferri, Lush 4, or Dolce is far better – but none of them are couples vibrators you can wear during sex.

The We-Vibe app’s connectivity with the Sync O is poor in close range and broken in long distance. The problem isn’t the Bluetooth signal – it’s the app, so it affects all of We-Vibe’s couples vibrators. You’ll want to control the Sync O from the remote. And if app-control is important, choose a Lovense toy instead.

The Sync O’s Bluetooth hardware is actually strong – it can handle locking your screen or switching apps, has excellent range (170 feet in our test), and holds up well to body interference.

Initial pairing is simple. Once you’ve added the Sync O to the app, it usually reconnects in two taps with no on-toy action needed – as long as you use one phone and only own a We-Vibe toy or two. You’ll have more trouble if you own several We-Vibe toys or connect the same toy to more than one phone, like you and a partner each pairing your own phone. Then the quick-connect often fails, and the fix is a tedious routine: delete the toy from the app, forget it in your phone’s Bluetooth settings, and pair it again from scratch.

Reconnecting mid-session is unpredictable. If the signal drops and returns within 10 to 20 seconds, the app usually reconnects on its own – but during that window it still looks connected, so whoever’s controlling the toy can be dragging the dot while nothing actually happens. If you’re out of range longer, you’ll often have to reconnect by hand, sometimes by holding the on-toy button, which is awkward while wearing the toy.

The biggest problem is that the app itself frequently doesn’t respond correctly: On the Single Vibe and Multi Vibe screens the toy sometimes ignores the control dot, or the dot freezes and you have to close and reopen the app to recover. It’s hit or miss, but frequent enough that I don’t trust the app during play.

Long-distance play is where it’s especially problematic. Both partners often show as “offline” even when you’re both sitting in the app, which stops a session from ever starting, and when you do connect, control commands are often missed with no indication on the controlling-partner’s end. Both bugs happen often, with no reliable fix.

For excellent connectivity in close range or long distance, a Lovense toy like the Ferri, Lush 4, or Dolce is a more reliable choice – but none of these is designed to be worn during sex, so for the Sync O itself, the remote or on-toy button is your best option.

In the next sections, I’ll cover the Romp Party’s remote features and connectivity.

Here’s the main conclusion:

The Romp Party has a basic, reliable remote – stable connection, instant response, and separate + and – buttons to adjust the power. Remotes can be useful if you don’t want to use a phone to control your toy.

Its main limitations are typical of remotes versus apps: less partner feedback and shorter range. If you want this more-detailed control, go with the Lovense Ferri for the best app control, or the NS Novelties Techno Lucy for a budget-friendly app experience.

In the next sections, I’ll cover the Sync O’s remote features and connectivity in detail.

Here’s the main conclusion: the Sync O’s remote is good, with all the controls you need and works reliably unless there’s a lot body interference. It can become unreliable when too much of your body comes between the toy and remote (which only really happens when your partner is controlling your toy from a sharp angle), but that doesn’t actually come into play when you’re controlling the toy yourself or during sex (which is what the Sync O is best for).

The Romp Party’s remote is simple, but works well – the two-button design gives all the control you’d need for power adjustment. Its few minor downsides are typical of remotes in general compared to apps.

Power control is fast and direct – the dedicated + and − buttons let you move forward and backward through seven power levels, and there are no vibration patterns to cycle through at all, which keeps the remote uncluttered. And you won’t accidentally switch from a constant setting to a pulse or wave.

The remote is comfortable to hold – a good size, fits easily in my hand, and the buttons are easy to tell apart by feel so I don’t have to look at the remote. This is a big upside compared to an app-controlled toy if you don’t want you or a partner to have to be tied to a phone. With the Party, you can make adjustments from your pocket without looking.

Like most panty-vibe remotes, the Romp Party’s partner feedback is just a faint blink when you press a button – there’s no way to tell what setting the toy is on. That’s fine if you’re using the toy yourself, and many partners won’t mind. But others find it less engaging when they can’t tell what the toy is doing or what you’re feeling.

An app-controlled panty vibe gives your partner real-time visuals of the toy’s vibrations, which can make controlling it feel more engaging. If that’s a priority for you, the Lovense Ferri is the best app-controlled panty vibe.

The We-Vibe Sync O’s remote features are great.

One of the best aspects is that the power and pattern controls are separate. There’s dedicated + and − buttons to move forward and backward through 11 power levels. And pressing and holding either button helps you reach a higher or lower setting faster.

There’s forward and backward buttons to move through the 6 vibration patterns. So I never have to cycle past patterns to reach a power level or vice versa – many remotes put power and patterns on the same loop. And you can raise and lower the intensity of each pattern.

The remote itself is comfortable to hold. It’s small and silicone-coated sitting naturally in my hand and feels more luxurious than We-Vibe’s older remotes like the original Sync’s hard plastic remote. And I also find its smaller size more comfortable to hold than the Chorus’s and Chorus Pro’s larger remotes. And the buttons are raised enough that I can feel which is which without looking – this kind of eyes-free operation can be a practical advantage of a remote over an app.

Like most remotes, the Sync O’s remote just blinks when a button is pressed – there’s no way for the partner holding it to tell what setting your toy is on. It’s not a huge deal, especially if you’re often the one controlling your own toy. But for a controlling partner, it can feel less engaging than an app’s visual feedback.

The Romp Party’s remote connectivity is excellent, though its maximum range lands in the middle of the pack.

The remote maintains a reliable connection through typical interference. Body tissue between a remote and toy is the main thing that typically breaks a remote’s signal during partnered control. Remote’s signals are weakened by water-rich materials like your body sitting between the remote and your toy.

Our body-interference test simulates this scenario at three progressively challenging angles, and the Romp Party holds a stable connection through all of them. Our test also runs harsher than typical real-world conditions, so partner-controlled play should stay reliable in practice.

Button presses register instantly – the toy reacts before my finger even lifts off the button. And the remote is always connected, so there’s no reconnection routine when starting to play.

One quirk: occasionally a click sounds as if it went through but the click was too light or off-center to make it actually take affect. You do have to give a deliberate, full press of the button.

The remote reaches about 55 feet in our open-air range test – measured with clear line-of-sight and no body interference. This is middle-of-the-road for the wearable vibrators’ remotes we tested, and real-world range will likely be shorter once objects and body interference come in. But the Romp Party has comfortable headroom for most activities, and especially any same-room use. If you need an especially long range, many app-controlled toys stay connected much farther – for instance, the Lovense Ferri stayed connected until 190 feet in our same test.

The Sync O’s remote connectivity is great in the use that matters most – controlling the during sex or yourself. But it is sensitive to heavy body interference which can happen if a partner controls your toy from extreme angles as you wear it around.

Body tissue between the controller and the toy is what most often weakens a remote’s signal – RF and Bluetooth signals get dampened by water-rich materials like your body more than most walls and other objects.

Our body-interference test simulates this at three different angles. During our testing, the Sync O’s remote was stable at the middle angle and workable at the first – missing only a couple commands – but at the steepest angle it struggles, dropping most commands.

Our test runs harsher than real use, though, especially because the Sync O’s wireless receiver sits in the externally worn portion of the toy, so there’s often little body tissue between it and the remote. Especially when you’re controlling the Sync O yourself, or during sex with the remote right by you and a clear shot to the toy, commands go through reliably; the misses only surface when a partner controls it from an awkward angle while you’re wearing it around, with more of your body in the way.

Button presses register with barely any delay and pairing is instant and automatic. The remote reaches about 40 feet in our open-air range test, measured with clear line-of-sight and no body interference. That’s shorter than many of the wearable remotes we’ve tested, but is still plenty of range for most scenarios.

Like most panty vibrators, the Romp Party’s on-toy controls are limited by design – the toy is inside your underwear during use, so you’ll typically rely on the remote.

There’s a single button on the toy that cycles forward through the seven power levels, with no patterns mixed into the loop. Unlike the remote, there’s no minus button – dropping back to a gentler setting means clicking forward until you start over in the cycle. Since there’s not many settings it doesn’t take too long to cycle, so the controls work fine if you also want to occasionally use it like a handheld vibe.

The button is well-placed: easy to feel and press without looking, and centered in the middle of the toy rather than tucked at the top the way most panty-vibe buttons sit. Pressing it does push the toy against you, which some people may find slightly uncomfortable, but the mid-toy placement distributes the pressure more evenly across your body than a button near your clit would.

The on-toy button works fine as a backup, but the remote is the main way you’ll use the Romp Party.

Like most hands-free couples vibrators, the Sync O’s on-toy controls are basic since many people will use the remote (or app if it worked well).

A single button cycles through 4 power levels and 6 vibration patterns on the same loop. To drop back to a lower power you have to click past the remaining patterns to get there. With 4 power levels covering the full range, the cycle is short enough for occasional use.

The button itself is easy to find and press: it’s visible, has a distinct feel, and sits on the external arm so you don’t have to remove the toy to adjust it.

While the controls are limited, I actually like using the on-toy button during sex. It’s nice to just reach between my legs and click when I’m warmed up and ready for more intensity, rather than setting the remote down somewhere nearby and finding it again when I want to change settings.

The Romp Party’s secure fit is great in bed but gets worse with activity. It’s much more secure than panty vibrators without a magnet that just sit loosely in your underwear. But its long, straight body doesn’t curve along your vulva, so it shifts off my clit more easily during walking and moves around during heavier activity than curved toys – even though the magnet keeps the toy itself anchored to my underwear.

In bed, the magnet locks the toy to my underwear and doesn’t slip from where I position it. The toy moves a bit with my body when I shift around, but it stays anchored and keeps a good position for stimulation fairly easily – you’re generally not moving around a ton here so the toy doesn’t shift off your clit that much. Form-fitting underwear helps; loose underwear lets the toy bounce against me more.

Walking is where the design starts working against the toy. The toy stays anchored to the underwear, but it doesn’t press as firmly against my body as panty vibes that curve with your vulva and it wiggles around more easily – so contact between the toy and my clit goes from solid in bed to only decent during light activity like walking around. When wearing a thong, the toy is long enough that the back end can poke out of the underwear as the toy starts to shift; full-backed underwear keeps that from happening.

Heavier activity is the hardest test. Running and jumping jacks bounce the toy around enough that stimulation drops off even more. It doesn’t fall out, but it’s not a good experience.

The magnet design is part of why this toy shifts more. It’s a small disc with decent strength, but it’s not big enough to anchor the long body of the toy completely and prevent the end from swinging around as I move. Still, the magnet is a clear improvement over panty vibes that just tuck into your underwear.

If you want a panty vibe that stays put while you move, the VeDO Niki is a better option in this price range – its body curves, so it stays firmly against your clit during walking instead of shifting off the way the Romp Party does.

The We-Vibe Sync O is the most secure-fitting couples vibrator I’ve tested – it stays put better than any other I’ve worn, especially while I’m up and moving around. In this section I cover its fit for solo wear in bed, walking around, and heavier movement; for how it holds during sex, see Hands-Free Use During Sex.

The flexible silicone loop is what keeps the Sync O in place. It’s wider side-to-side than the more bulbous internal arms on the Chorus and Sync 2. The Sync O’s loop presses against the sides of my vagina instead of just the front wall to stay in place and requires more of a tug to remove than any other We-Vibe couples vibrator.

Walking, climbing stairs, and doing chores don’t move it at all. Even heavier movement barely fazes it: running and high knees don’t budge it – it bounces as I land, but the springy loop pulls it right back into place without my having to reach down and fix it. It’s best to wear snug clothing as an extra precaution though.

The bulbous-armed Chorus and Sync 2 start to wiggle loose during that kind of vigorous movement. Though I find these hold more firmly clamped against my clit during sex.

The Sync O has a single adjustable hinge at the base of the clit arm. You bend it to the angle that suits you and it holds that shape, which is what keeps the clit arm pressed against me.

Adjustability is key with couples vibrators – I can only orgasm with C-shaped toys that have an adjustable hinge, and not with flexible-only options – those shift around and often fall out when walking.

The one real limit is that the hinge changes how tight and angled the fit is, not how far the clit arm reaches – if the arm doesn’t quite reach your clit to begin with, no adjustment will extend it, so there’s still some dependency on it fitting your anatomy well.

The Romp Party is comfortable in bed if you like focused, slim contact against your clit, but it shifts around enough when walking to cause some slight discomfort.

In bed, I’m not moving a ton, so the toy sits consistently against my body. The silicone is soft and smooth with no poke-y spots. While the contact is more focused than what I get from broader, contoured panty vibes, the pressure stays light enough to feel comfortable.

When walking, the slim, straight shape moves around more than a broader or contoured toy would. The materials are still smooth and there’s no pinching, but the toy taps against my clit a little more than I’d like. If wearing it with a thong, the back end sometimes sticks out of your underwear which is a distracting feeling.

For comfort, both the VeDO Niki and the NS Novelties Techno Lucy are better picks in this price range – each is more form-fitting to keep the toy from shifting uncomfortably.

The We-Vibe Sync O is an extremely comfortable C-shaped couples vibrator, whether in bed or while walking around. In this section I’ll cover the comfort during solo use in bed and wearing around – for comfort during sex, see Hands-Free Use During Sex.

In bed, I barely notice it’s there. The flexible silicone loop is slim front-to-back and sits against the sides of my vagina rather than filling it, so the internal piece doesn’t cause any pressure on my bladder that can be less comfortable like larger egg-shaped toys such as the Lovense Lush 4 or Lovense Dolce.

The adjustable hinge lets me set a fit that’s snug enough to stay put but never so tight it presses uncomfortably, and the smooth silicone feels great against your body.

Moving around, it stays just as comfortable. Walking and doing light chores, I don’t feel the internal part at all, and the external arm rests comfortably against my clit without jostling or tapping uncomfortably.

The Romp Party is in the most discreet group of wearable vibrators I’ve tested. However, more stimulating panty vibrators like the VeDO Niki and NS Novelties Techno Lucy are similarly quiet, so they’re better options for most people.

The Romp Party’s decibel readings on low and high power were extremely quiet, too quiet for our Sound Level Meter to pick up on. The ambient room noise was 35 dBA, and the Romp Party never measured higher than this.

For our Background Noise Masking subtest, I wear the toy while my partner listens from three feet away and we play pink noise through a speaker at quiet, moderate, and loud volumes (56, 62, and 68 dBA). He couldn’t hear the Romp Party at any vibration strength under any of the three tested volumes of background noise. It’s audible in our room without any pink noise playing – but every wearable I’ve tested is, no matter how gentle and quiet its vibrations are.

For the closed-door part of the test, my partner listens directly outside our bedroom door while I use the toy in bed. I use it like a handheld toy here, since wearing dampens sound and some people want the flexibility to safely re-position the toy or move it around. Holding the toy instead of wearing it gives us the most conservative results. He couldn’t hear the Romp Party from behind the door on any setting.

The We-Vibe Sync O is one of the quietest wearable vibrators. On low power it was too quiet for our sound level meter to pick up over the room’s 35 dBA ambient noise, and even on high it measured only about 42 dBA which is very quiet. The motor’s low-pitched rumble easily blends into the background, and while wearing it, I can barely hear it myself.

In our background-masking test, I wear the toy while my partner listens from three feet away and we play pink noise through a speaker at quiet, moderate, and loud volumes. He could not hear the Sync O at any vibration strength under any of those three tested volumes. It is audible in our room with no background audio playing, but every wearable I’ve tested is audible in a completely quiet room.

For the closed-door test, my partner listens directly outside our bedroom door while I use the toy in bed. I use it like a handheld toy here because wearing dampens the sound, and some people want the flexibility to safely reposition wearables or move them around. Holding the toy instead of wearing it gives us the most conservative result. He could not hear the Sync O from behind the closed door on any power level.

Most hands-free couples vibrators I’ve tested are similarly quiet, including the We-Vibe Chorus and Sync 2. So if you are choosing between couples vibes, stimulation, comfort, and fit during sex matter more than small noise differences.

The Romp Party has long battery life – much longer than typical for a panty vibrator in this price range. It lasted 115 minutes at its highest power during our test, more than twice as long as the comparably-priced VeDO Niki and NS Novelties Techno Lucy (both 55 minutes).

If you want even longer, the Lovense Ferri runs about 2.8 hours at top power. It’s pricier than the Romp Party but is a much better panty vibrator overall.

The We-Vibe Sync O lasted 93 minutes at its highest power in our test – the longest battery of any We-Vibe hinged couples vibrator. The Chorus and Sync 2 both last about half an hour less.

That’s plenty for the Sync O’s main use – I never need more than an hour of continuous full-power vibration during sex. And because the Sync O is also comfortable to wear around, the longer runtime helps outside the bedroom too.

It still falls short of the best vibrators built mainly to wear around, though: for instance, the Lovense Ferri panty vibrator lasted 168 minutes – but it isn’t a couples vibrator you can wear during sex.

The Romp Party is easy to clean. It’s fully waterproof – rated IPX7, so you can rinse it under a running faucet or fully submerge it without worry.

The We-Vibe Sync O is easy to clean. The toy itself is fully IPX7 waterproof, so you can rinse it under a running faucet or fully submerge it in soapy water. It is also safe to take into the shower or bath.

However, the IPX4 remote can only resist light water splashes. You should not take the remote into the shower or clean it under a running faucet. Clean the remote with a damp cloth.

The Romp Party’s build quality is decent for the price, but a step behind most panty vibrators I’ve tested. It’s coated in a nice silicone with a slight flex to the core, and the on-toy and remote-control buttons each have a satisfying click feel. The plastic remote feels fairly sturdy too even though it’s quite lightweight.

The weak spot is the magnet that holds the toy to your underwear. It has decent grip when seated, but it protrudes far enough from the toy that it’s easy to knock off by accident – and the same small magnet is what struggles to anchor the long, stick-straight body during heavier movement.

The We-Vibe Sync O has excellent build quality, on par with the rest of We-Vibe’s high-end line like the Sync 2 and Chorus. I’ve had mine since 2023 and it’s continued to work as expected.

It’s coated entirely in smooth, plush body-safe silicone that feels luxurious. The adjustable hinge feels solid, holding firm when I press on it and keeps the angle I set, and the connection between the internal and external arms feels strong enough that I’m not worried about it snapping during normal use.

The flexible O-shaped internal loop has a nice spring to it, expanding back to its resting shape quickly every time. We-Vibe also refreshed the controls: the on-toy button is the newer, larger design that’s easier to press than on older We-Vibe toys, and the remote’s buttons press easily with a satisfying click.