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Aug/02/2022
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13 min read
Fun Factory G5 Big Boss Review: Large Waterproof G-Spot Vibrator Tested
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Our articles may contain affiliate links - if you enjoy our content, support us by shopping through them! We earn a small commission at no extra cost to you. Learn more here.
If you’re looking for a large G-spot vibrator that combines substantial size with powerful internal stimulation, the Fun Factory G5 Big Boss immediately stands out. Its impressive dimensions make it one of the largest models in the company’s lineup, making it a strong option for users who already prefer fuller sensations and larger toys.
Although it resembles a realistic dildo, the G5 Big Boss is specifically engineered for targeted G-spot stimulation. Its pronounced curve, thick shaft, and powerful vibration motor are designed to deliver focused internal stimulation while maintaining the premium build quality Fun Factory is known for. In this Fun Factory G5 Big Boss review, I’ll cover its design, comfort, vibration performance, and whether it lives up to expectations for users seeking a larger G-spot vibrator.
Quick Verdict
The Fun Factory G5 Big Boss is best for intermediate and advanced users who want a large vibrating G-spot massager with a realistic shape, strong rumbly vibration and premium silicone build. Its biggest strengths are the 6.63-inch insertable length, 1.78-inch diameter, 5 speeds, 4 patterns, finger-loop handle and fully waterproof design, while its main drawbacks are the 6-8 hour charge time, no app control, no travel lock and the fact that it is not designed for anal use.
- Best for: Users who want a substantial G-spot vibrator with strong internal pressure and clitoral-use versatility.
- Skip it if: You are a complete beginner, want app control, need fast charging or want an anal-safe toy.
- Main strength: The large curved shape and pronounced ridge make G-spot targeting feel direct and powerful.
- Main drawback: Charging takes 6-8 hours, which feels long for a premium rechargeable vibrator.
- Final verdict: A powerful premium G-spot vibrator for users who value size, silicone quality and deep rumbly vibration over smart features or beginner-friendly sizing.
Fun Factory G5 Big Boss Overview
If you’ve used G-spot toys before, you’ve probably noticed that many models are relatively compact and prioritize function over realism. The Fun Factory G5 Big Boss takes a different approach. It combines the size and appearance of a large dildo with a shape specifically designed to target the G-spot.
Its substantial shaft, pronounced curve, and powerful vibration system make it one of the more distinctive G-spot vibrators in its category. Rather than focusing solely on size, the G5 Big Boss is engineered to deliver deep, targeted internal stimulation for users who prefer larger toys and more intense sensations.
The standout feature of the Fun Factory G5 Big Boss is its combination of generous size and targeted G-spot stimulation. Its thick shaft and pronounced curve are designed to provide deeper internal contact, making it a strong option for users who enjoy fuller sensations and larger toys.
If you’ve wanted to try a G-spot vibrator but found smaller models too subtle for your preferences, the G5 Big Boss offers a very different experience. It’s designed for users seeking a larger, more powerful toy that combines substantial size with focused G-spot stimulation.
Honestly, I completely missed the previous G4 version of this toy, so when the updated model launched, I was excited to see what had changed. The newer version introduces improvements that immediately caught my attention and made me curious to see how it would perform during this Fun Factory G5 Big Boss review.
But seriously, when I shop for products like this, I usually look for something that offers a more substantial feel and a premium overall experience. If you’re here reading this review, there’s a good chance you’re looking for something similar. Some people prefer slimmer designs, while others want something with a bit more presence and intensity. If you fall into the latter category, the G5 Big Boss is clearly designed with that audience in mind. The black version especially gives it a sleek, bold appearance that fits the overall personality of the product and helps set the tone for a more premium experience.
First Impressions, Size and Design
As always with Fun Factory, you’ll get sophisticated German engineering and packaging. I always have a great time unboxing Fun Factory toys and this one was no different. The box is both luxurious, fun and definitely gives you that wow factor when you take out the outer slip. Then, you get a beautiful gold box with the words “Your Perfect Moment”. Whether you like all that cutesy stuff or you just want to get straight to the good part, here’s what you’ll get when you open the box:
- G5 Big Boss
- Magnetic charging cable (USB)
- Instruction manual
Size, Shape and First Impressions
My first impression of the Fun Factory G5 Big Boss was simple: this is a seriously substantial toy. Its size immediately stands out, and it’s clear from the moment you pick it up that it’s designed for users who already enjoy larger G-spot vibrators and more intense internal stimulation.
Beyond its impressive dimensions, I was curious to see whether its ergonomic curve and powerful vibration motor would justify the attention it receives. That combination of premium construction, targeted design, and generous size is exactly what made me eager to put it through a thorough hands-on test.
Anyway, what I was most impressed with from the start is the actual shape of the thing. Now, you’ll be looking at 6.6 inches of insertable length. Plus, the diameter is approximately 1.78 inches.
The G5 Big Boss is clearly designed for users who enjoy larger toys and substantial internal stimulation. Its broad, pronounced head is shaped to provide focused G-spot contact, while the thick shaft creates a satisfying sense of fullness throughout use.
Additional design details, including the subtle surface texture and ergonomic curve, help enhance the overall experience without feeling overly aggressive. Rather than relying solely on size, the carefully balanced curve is intended to maintain consistent G-spot contact, making the G5 Big Boss a strong option for users seeking a larger vibrator with targeted internal stimulation.
One thing I should say here is that the total length is around 9 inches. The other 2 inches are taken up by a finger loop handle at the base. Also, the white handle is nice and smooth and it comes with three buttons that you can use to control the action.
Fun Factory G5 Big Boss Features and Specs
- 5 vibration speeds
- 4 vibration patterns
- Finger loop handle at base
- Fully waterproof
- Medical-grade premium silicone
- USB magnetic charging
- Insertable Length: 6.63 inches
- Diameter: 1.78 inches
- Total length: 9.25 inches
- Operating time: 120 minutes
- Charging time: 6-8 hours
- Colors: Cream, Pink, Black
- Water-based lube only
- 24-month warranty (receipt required)
- Not designed for anal use
Materials, Texture and Cleaning
One of the things that I always loved with Fun Factory toys is their high-quality silicone material. You can squeeze and tease the Big Boss but the firm texture allows you to feel every inch!
Another advantage is the premium, non-porous silicone construction, which won’t absorb fluids or bacteria when cleaned and maintained properly. The material feels exceptionally smooth, is easy to sanitize, and contributes to the toy’s long-term durability.
When paired with a quality water-based lubricant, the soft silicone surface creates a comfortable, lifelike feel during use. Combined with the G5 Big Boss’s ergonomic shape and premium construction, it delivers a refined experience that stands out from many lower-quality alternatives.
Fun Factory’s silicone material is also incredibly easy to maintain, and it definitely helps that the entire toy is fully waterproof. That makes cleanup quick and straightforward, even after heavier use. Another nice advantage of the waterproof design is added versatility, since you can comfortably use it in places like the shower if that fits your preferences.
Size, Girth and Fit
During testing, I found the G5 Big Boss offered a well-balanced combination of length, girth, and ergonomic shaping. Although it’s firmly aimed at users who already enjoy larger toys, the proportions felt carefully designed rather than oversized simply for the sake of size.
If you have experience with medium to large G-spot vibrators and are looking to move up to something more substantial, the G5 Big Boss could be a natural next step. As always, taking your time, using plenty of lubricant, and choosing a size that matches your comfort level will provide the best overall experience.
What I really enjoyed here was the balance between the length, thickness and weight. It’s not too heavy and the finger loop at the bottom balances it all out. Like I said, the cool thing here is that the curve is just right. It allows you to use the Big Boss hands-free. Still, you can always use your hand if you need an extra push. Another thing you can do is use the head as an external clit massager. It’s wide, soft and it can deliver all sorts of pleasurable vibrations in and around your clit.
Vibration Speeds, Patterns and Intensity
Speaking of the actual vibration quality, I was impressed with the overall low noise factor on this thing. It’s not fully silent, but it’s still quieter than most other G-spot vibes.
Additionally, you’ll get 5 speeds and 4 unique patterns to play with. You can mix and match them to find your favorite setting for a deep internal massage or intense clitoral vibrations. When used externally, I found that the head felt very similar to a wand massager. Even at the lowest level, the vibrations were enough to give me a strong external climax. And when I inserted it inside (slowly — it’s extra thick!!!)It filled me with heaps of intense pressure that I’ve never quite experienced with other G-spot massagers so far.
💡 Pro Tip: Don't start with the Razzle Dazzle or Aerobic Mode patterns on your first session. Run through the 5 speed settings on continuous vibration first so you can calibrate what your body responds to before introducing the pulsing patterns. The difference between speed 1 and speed 5 is dramatic and starting too high means you'll miss the nuance of the mid-range settings - which is where most of the G-spot magic actually lives.
Testing the G5 Big Boss
The lowest “Razzle Dazzle” and “Aerobic Mode” settings were strong enough to send deep rumbles throughout my body and deliver full-body vibration that goes well beyond the insertion point.
What’s more, the pulse patterns and continuous vibrations felt fantastic when I pressed the head directly on my G-spot. Note that some girls will enjoy tiny movements here while others will love big thrusts. I tried various types of thrusting and hands-free fun and I slowly built up to an strong G-spot-focused climax. But, I also realized that this is a superb toy for edging. Just let go of it when you feel an orgasm coming and use it hands-free. You’ll sense a deep throbbing that extends way beyond your A-spot and cervix. The results can be intense – a waterproof mat is a wise precaution!
On a side note, I really wish they would have made this thing a little more anal-friendly. It looks purpose-built for it, honestly! However, the manufacturer doesn’t recommend it for anal. You can try it and get by if you keep a constant grip on the finger loop (I couldn’t help myself and it felt great) but if you’re a beginner, I would advise you to do not use this toy anally because it lacks a flared base.
Pros
- Intense G-spot and clitoral stimulation – 5 speeds and 4 patterns give serious range
- Realistic shape and size with pronounced ridge for targeted G-spot contact
- Hands-free capable via finger loop
- Quieter than most G-spot vibrators
- Fully waterproof – shower and bath safe
- USB magnetic charging
- Medical-grade silicone: non-porous, latex-free, phthalate-free
- 24-month warranty – one of the longest in the category
Cons
- 6-8 hour charge time is long at this price point – most competitors charge in 2-3 hours
- No app control or wireless connectivity – unusual at the $100+ price range
- Not designed for anal use – the shape and size suggest it, but the manufacturer is clear on this
- Water-based lube only – silicone lube will damage the material
- No travel lock on the controls
Fun Factory G5 Big Boss Compared With Other Vibrating Dildos
 Fun Factory G5 Big Boss
|
 Evolved Novelties Big Shot Squirting
|
 The Swan Wand Rechargeable Waterproof Silicone Vibrator
|
 Icicles No. 20
|
|
| features |
|
|
|
|
| price | From $137.99 |
From $118 |
From $155 |
From $55 |
| users | 127 | 63 | 58 | 27 |
| our rating |
4.8
|
4.3
|
4
|
3.5
|
| power | USB Rechargeable | USB Rechargeable | USB Rechargeable | 2 x AA Batteries (not included) |
| material | Silicone | Silicone & ABS Plastic | Silicone | Glass |
| waterproof | Yes | Yes | Yes | Yes |
| brand | Fun Factory | Evolved Novelties | Swan | Pipedream |
| type | Vibrating dildo | Vibration squirting dildo | Pink vibrating dildo | Vibrating glass dildo |
| allergens | Latex-Free, Phthalate-Free | Phthalate-free - Non-porous | Phthalate-free - Non-porous | Phthalate-free - Non-porous |
| design |
4.6
|
4.2
|
4.3
|
4
|
| ease of use |
4.5
|
4.5
|
4.2
|
3.8
|
| orgasm |
4.7
|
4.6
|
4.3
|
3.9
|
| quality |
4.7
|
4.4
|
4.2
|
4
|
| noise | Moderate | Moderate | Moderate | Moderate |
| ease of clean | Moderate | Easy | Moderate | Easy |
| warranty | 2 years | 5 years | 1 year | 90 days |
Fun Factory G5 Big Boss Review: Final Verdict
The Fun Factory G5 Big Boss delivers exactly what it promises: serious G-spot stimulation in a realistic, premium package. The 6.6-inch insertable length, 1.78-inch diameter, 5 speeds and 4 patterns make it one of the most comprehensively specced G-spot vibrators in its price range. The 6-8 hour charge time and lack of app control are real trade-offs at this price point, but the build quality and vibration power more than compensate. If powerful G-spot stimulation and premium build quality are your priorities, the Big Boss absolutely delivers. Order it and thank yourself later.
Who Should Buy the Fun Factory G5 Big Boss?
Buy it if:
- You want one of the largest G-spot vibrators available – 6.63-inch insertable length with a 1.78-inch diameter
- You want both G-spot and clitoral stimulation from one toy – the head doubles as an external wand-style massager
- You prefer a hands-free capable toy – the finger loop handle and upward curve make it genuinely possible
- You want a long warranty – 24 months is among the best in this category
- Premium German engineering and build quality matter to you
Skip it if:
- You are a complete beginner – the 1.78-inch diameter requires some prior experience with larger toys
- App control or partner remote play is important – there is no wireless connectivity
- The 6-8 hour charge time is a dealbreaker – comparable toys charge in 2-3 hours
- You want a dual-use vaginal and anal toy – the manufacturer is explicit that this is not designed for anal use
Mistakes to Avoid With the Fun Factory G5 Big Boss
- Using silicone or oil-based lube. Fun Factory’s medical-grade silicone will be permanently damaged by silicone lubricants. Water-based lube only – every single time.
- Skipping the charge cycle on first use. The G5 Big Boss ships partially charged. Run a full 6-8 hour charge before your first session to calibrate the battery and maximize operating time.
- Starting at the highest speed. The jump from speed 3 to speed 5 is significant. If you go straight to maximum power, you’ll miss the genuinely excellent mid-range vibration quality that makes this toy stand out.
- Attempting anal use. The manufacturer does not recommend this toy for anal use. There is no flared base – the finger loop is not a safety stop for anal insertion. Do not use it this way.
- Storing it with other silicone toys. Silicone-to-silicone contact can cause surface degradation over time. Store the G5 Big Boss alone in its box or in a separate storage pouch.
| 👉 Name: | Fun Factory G5 Big Boss |
|---|---|
| ⚙️ Features: | Extra Large (6.63 in insertable, 1.78 in diameter), 5 speeds, 4 patterns, Waterproof, USB magnetic charging, Finger loop handle |
| 📁 Type: | Realistic Vibrating G-Spot Massager |
| 🛠️ Materials: | Medical-grade silicone (non-porous, phthalate-free) |
The Fun Factory G5 Big Boss Lowdown – What You Need to Know
This one’s for intermediate users who want deep vibrations with precision. The patterns work great for both clitoral and vaginal play and the size, shape and handle make it easy to use hands-free. It’s not designed for anal use, but as a vaginal G-spot vibrator with a 24-month warranty and a charging life of 120 minutes per session, it’s hard to beat.
Delivery is discreet, labeled only as “FF GmbH”. You get a 24-month warranty if you keep your receipt. This is one of the longest manufacturer warranties in the G-spot vibrator category. Avoid oils and creams – they can damage the toy and void coverage.
Made of medical-grade silicone, latex-free and phthalate-free. Always use water-based lube like Toyfluid – silicone or oil-based lubricants will bond to the silicone surface and permanently damage the material.
Wash with warm water and mild soap or use Fun Factory’s toy cleaner spray for deeper care. Store it dry, away from other silicone toys. Because the magnetic charging port is sealed, the toy is fully waterproof – you can rinse it under running water after cleaning. Keep silicone lubes away from the surface to maintain longevity.
It depends on your experience level. If you’re new to any G-spot stimulation, the G5 Big Boss is not an ideal starting point – the 1.78-inch diameter requires prior experience with larger toys. If you’ve used G-spot vibrators before but want more size and power, the G5 Big Boss is an excellent step up.
No. Fun Factory does not recommend the G5 Big Boss for anal use. The toy does not have a flared base – the finger loop handle is not designed or tested as an anal safety stop. Use it for its intended purpose: vaginal G-spot and clitoral stimulation.
Water-based lube only. The G5 Big Boss is made from medical-grade silicone – silicone-based and oil-based lubricants will chemically bond to the surface and permanently damage the material. Fun Factory recommends their own Toyfluid water-based lubricant for best compatibility.
Both are premium G-spot vibrators at similar price points. The G5 Big Boss wins on insertable length (6.63 vs approximately 4.7 inches) and charging warranty (24 months vs 1 year). The Lelo Gigi 3 wins on app control via the Lelo app, quieter operation and faster charging. If size and depth of stimulation matter most, choose the Big Boss. If app control and discretion matter more, the Gigi 3 is the stronger choice.
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