The Doxy Bullet has incredible strength. Vibration strength is the Doxy brand’s specialty – they also make the strongest wand vibrator I’ve tested (the Doxy Die Cast). Its enormous strength makes the Doxy Bullet appealing to those who crave intensity.

But with only 2 power levels, its lowest setting is already very intense at 7.5 out of 10 vibration strength. It provides no gentle settings for those who need a warmup.

While testing the Doxy bullet, I had to use gentler bullets initially, then switch to the Doxy once I was ready for more power. I think most people will agree that the starting level is too intense.  This is the main reason I recommend the Doxy Go instead – it has 5 settings, reaching the same top strength as the Doxy Bullet while also including gentle and moderate warmup levels. Note that we tested the Doxy Go as a wand vibrator so scores between the two reviews are not directly comparable. Read about how these compare below.

There are other bullet vibrators at this price point that achieve high strength but also include some lower levels that are better for warming up. The Blush Limited Addiction matches the Doxy’s top strength but also offers more moderate starting levels (though still nothing super gentle), which can be less jarring in that warm-up phase.

Or the BMS Swan Maximum is an even more powerful bullet with a broader power range, but I find it less comfortable to hold, so I prefer the Limited Addiction personally.

The FemmeFunn Booster Bullet is one of my strongest bullet vibrators and has a good range between low and high. 

I don’t consider many bullet vibrators’ top strength “extreme,” but the Booster Bullet is one I do. 

It reaches a 9.5 out of 10 on its top power level. I never need to use this setting because even the second level is intense. The Booster Bullet has about 5% more power than the cheaper FemmeFunn Ultra Bullet – though the Ultra’s 9 out of 10 top power is strong enough for most people. Depending on your budget, it might be worth saving the $20 going with the Ultra Bullet for the minimal difference.

There are better choices than the FemmeFunn Booster Bullet for those who need mild stimulation. Its lowest power is 4.75 out of 10 strength – it begins with a fair amount of power. If you need more gentle settings consider the Lovense Ambi or BMS Swan Maximum if you like buzzy vibrations. Or the We-Vibe Tango X if you prefer rumbly vibrations.

As someone who enjoys moderate to intense vibrations but nothing too extreme, I find the Booster Bullet’s starting level perfect as a warm-up. I spend a lot of time with it because you can vary how intense it feels by applying more or less pressure. Or by changing how direct the stimulation is on your clit.

Then, when I switch to the second power level, I’m ready for its strength and don’t find it overwhelming. This setting is around my ideal strength to finish.

Since most people prefer rumbly vibrations, we rate these bullets higher than buzzy ones. However, your preferred vibration frequency is just that – a personal preference! I often enjoy a neutral or moderately-buzzy feeling bullet myself!

However, buzziness combined with extreme power typically feels overwhelming and uncomfortable to me. And that’s exactly what the Doxy Bullet is: extreme in both power and buzziness.

The Doxy Bullet’s first setting falls in the moderately buzzy range. Some days, I still find this first buzzy setting overwhelming, even after warming up with a gentler bullet first. The second setting is extremely buzzy and super intense. While some people might enjoy that much buzzy strength, it’s too much for me and is hard to use.

If you prefer rumbly vibrations, consider a different bullet. The We-Vibe Tango X is the most rumbly bullet I’ve tested – all 8 of its power levels are extremely rumbly. Or if you enjoy some buzziness, but not too extreme, the Lovense Ambi is excellent. It ranges from extremely rumbly on low to moderately buzzy on high. But because it’s not so far along the spectrum, I enjoy its buzzy settings.

We rate rumbly vibrators higher than buzzy ones because it’s what most people prefer. But others prefer buzzy vibrators, so go with what you like! 

The FemmeFunn Booster Bullet is buzzy. Only the lowest power level is in the rumbly range. The two highest settings are moderately and extremely buzzy. This buzziness makes the already powerful vibrations feel even more intense.

I personally enjoy the Booster Bullet’s buzzy vibrations – it’s one of my favorites. But those who want deep, rumbly vibrations will want to go with the We-Vibe Tango X instead. It’s the most rumbly bullet I’ve tried. Although not quite as strong as the Booster Bullet, it will be enough strength for many people. 

Vibrations typically become buzzier the stronger they get. None of the bullets I’ve tested that have extreme strength like the FemmeFunn Booster Bullet are rumbly. So consider whether you value rumbliness or intensity more.

The Doxy’s precision level is medium. It does have a tapered tip for more precise stimulation, but it’s a pretty thick bullet. I enjoy this combination of a fine tip and thicker bullet for the versatility. You can use the very tip for more focused stimulation. And then, you can angle the Doxy Bullet to press the side against you for slightly broader stimulation.

The We-Vibe Tango X, the Blush Limited Addiction, the FemmeFunn Booster Bullet, and the Je Joue Classic are some bullets with similarly versatile precision but better performance overall.

The FemmeFunn Booster Bullet is neither broad nor particularly focused – it’s a happy medium. The relatively wide tip (nearly an inch) is broader than many bullets with a typical lipstick or tapered shape. And it’s rounded, making it feel broader too. This makes it comfortable for firm pressure because it’s more evenly distributing that weight instead of feeling pokey.

But it’s still narrower than several bullets and other mini vibrators like the We-Vibe Touch X. The tip is small enough to isolate vibrations to a reasonably small area, or you can use the side of the bullet to spread that out and cover a bit more space.

The Doxy is a nice size to grip and easily leverage. But it’s one of my worst bullets for feeling the vibrations in my hand. It’s one of the main reasons I don’t reach for this toy. I can only hold it briefly before the hand vibrations become unbearable.

It has one button on the end of the bullet to cycle through the two power levels and all the patterns. It’s not ideal for quickly finding your favorite setting. I prefer the Doxy Go, Je Joue Classic and We-Vibe Tango X’s multi-button system, which lets you increase and decrease power using separate buttons to make quick, easy adjustments.

Or the Lovense Ambi, which only has one button on the toy itself, but lets you make fine-tuned adjustments through the app. Not to mention the ability to design your own custom patterns in the moment.

The FemmeFunn Booster Bullet is very comfortable, and the buttons provide good control.

The length is excellent for maneuvering without taking up too much space or cramping your fingers. The form is flexible, which makes it comfortable to press against your body. This flexibility means you need to shift your fingers and use them to press closer to the tip if you want extra-firm pressure rather than leveraging it from the base as you would with a rigid bullet.

The vibrations travel into your fingers a bit when using them to press near the tip (where the motor is located) for extra pressure, but it’s nothing too distracting.

You cycle through the 3 intensity levels and 17 patterns using a single button on the bullet’s base. This is less convenient than bullets that let you toggle forward and backward with separate buttons, like the We-Vibe Tango X. Still, the Booster Bullet is more advanced than other cycling bullets because of the Boost button and memory system.

The Boost button lets you quickly jump from wherever you are in the cycle to the top steady intensity level. So basically, whenever you’re on the edge, tap the Boost button to take you the rest of the way. In addition to the slight power increase, the Boost button is this bullet’s other upgrade over the FemmeFunn Ultra Bullet. If it doesn’t seem worthwhile to you, you can save some money and get the Ultra.

The Booster Bullet also has a built-in memory system (as does the Ultra Bullet). The next time you use the bullet, it will pick up at your most recent setting. That way, if you have a favorite setting, you won’t need to cycle through all the patterns to find it again. 

And for those who prefer warming up on the gentlest setting, the next click of the button will take you directly to the lowest constant power level.

Unfortunately, the vibes that travel into my hand make the Doxy Bullet very distracting during sex. The sound is also a downfall – it is the loudest of my bullets and just takes me out of the mood. The hard, aluminum surface also gets pressed uncomfortably into my body during sex. For those who care about using their bullet during sex, I recommend other options.

If you prefer strong, neutral to buzzy vibrations, consider the FemmeFunn Booster Bullet or Lovense Ambi. Or if you like rumbly vibrations, consider the We-Vibe Tango X. Each is better during sex than the Doxy Bullet.

This bullet works amazingly well during sex. It’s a great size to slip into tight spaces without taking up much room or bumping against your partner. Its round tip and flexible form make it especially comfortable, even with heavy movement during sex. It flexes with your body to remain in comfortable contact with your clit (directly or indirectly). 

It’s also a reasonably long bullet, so I don’t need to keep my hands too far down during sex.

The Doxy is my loudest bullet vibrator. During our testing, it was audible from behind a closed door on all settings. This is the only bullet vibrator we tested that was still audible after turning on a box fan in the bedroom. Only loud music was able to drown the sound out. So it’s not a great choice if you have housemates.

And even if there’s no need for discretion, the sound is just plain distracting. Any other bullet you might be eyeing on my list will be better because none of the others bother me like the Doxy Bullet. Doxy’s mini-wand reaches the same top strength while remaining much quieter.

The We-Vibe Touch X is the quietest if you prioritize discreet sound levels with decent power. And the Lovense Ambi and Je Joue Classic are other strong options that are both completely inaudible from behind a closed door on all power levels.

The FemmeFunn Booster Bullet has good, quiet noise levels. Our decibel readings were lower than the average bullet – this is especially impressive considering it’s one of the most powerful I’ve tested.

We also test whether someone would hear the bullet on the other side of a closed door. My partner stands directly on the other side of the door while I use the bullet in the bedroom.

The first two power levels were completely inaudible, but my partner could just barely hear it on the highest setting. This is the note he left in our testing spreadsheet word for word:

“This was just barely perceptible on high. I had to try really hard and wait for sounds outside to become extremely quiet. I doubt anyone would actually hear in typical use.”

Turning on a box fan or music solves this problem completely, so you can use this to mask the noise if you want to use all power levels.

The Doxy Bullet has a reasonable battery life, lasting about an hour and a half on high power.

However, several better bullet and mini vibrators last just as long or longer, including the We-Vibe Touch X, We-Vibe Tango X, and the FemmeFunn Booster Bullet.

The FemmeFunn Booster Bullet is rechargeable and lasted 85 minutes on high power during our testing. It has the longest battery life of my “extremely powerful” bullets. And if you also use the lower or middle powers occasionally, you’ll prolong the lifespan even more.

The Doxy Bullet has a quality build. The metal construction feels very sturdy. The aluminum body is smooth and elegant. And the silicone button feels quality and not cheap.

But given the other deal-breakers I’ve mentioned about the Doxy Bullet, I’d choose another high-quality option, such as the We-Vibe Touch X, the We-Vibe Tango X, or the Lovense Ambi.

The FemmeFunn Booster Bullet has excellent build quality. The body-safe silicone is smooth and comfortable. The ABS Plastic housing the motor also feels solid. It has some good weight, making it feel more durable than cheap, lightweight bullets. The silicone buttons also feel well-made. 

The flexible part is a little squeaky, which is not as luxurious as I would hope, but it hasn’t caused me any issues. I’m comfortable applying firm pressure without worrying about damaging the bullet.

The Doxy Bullet is very easy to clean. It’s IPX7 waterproof (completely submersible), so you can wash it in the sink and use it in the bath.

Since the Booster Bullet is entirely waterproof, it’s very easy to clean. You can completely submerge it while scrubbing it with soap and water. No worrying about damaging the toy.