The Mystim Sizzling Simon is a vibrator with integrated electrostimulation, and just this sentence alone is still enough to make a lot of people raise an eyebrow. Electrostimulation still carries this reputation of an obscure BDSM practice, a bit intimidating, almost folkloric, as if it necessarily belonged to a highly coded, highly extreme sexuality, a very “this is not for me” kind of thing.
This image of a worrying object comes mostly from the word “electro”. We immediately imagine something cold, brutal, and technical. Whereas once the toy is in hand, we are faced with something much simpler than this preconception.
This is precisely what interested me about the Sizzling Simon. It takes on a familiar shape, that of an unapologetically large insertable vibrator, and adds a stimulation that completely changes the way the body reacts. It is not a bonus feature that you forget after two tries, but another range of sensations that are diffuse, tingling, and surprising.
Here is my review of the Mystim Sizzling Simon.
Sex toy packaging
The packaging is clean, neat, without any particular fantasy. Nothing flashy. The product is presented as a rather high-end sex toy, with the level of finish you would expect in a price bracket comparable to certain Lelo or Fun Factory references.
The included storage pouch is a nice touch. It is practical, sturdy, and protects the toy well. A magnetic charging cable and the user manual come with it.
Look of the Mystim Sizzling Simon
Visually, the Mystim Sizzling Simon is no UFO. It is black, matte, discreet, perhaps a bit stern, but very ordinary in its sex toy design. If you forget its electrostimulation function, it looks like a classic vibrator, sober and functional, with a slight curve, a fairly pronounced head, and some texture on the body.
And that is not a criticism. Not everything needs to look like a gallery piece or a space gadget. I quite like this simple, almost mundane aspect, which contrasts with what it offers once turned on.
Size-wise, it measures 27 centimetres long, of which 17 are insertable, for a 4-centimetre diameter: it is thick, but it is not a monster. We are in somewhat generous territory, on the level of a classic large penetrating vibrator, not in excess. If you know formats like the Big Boss from Fun Factory, you get the idea. With enough arousal and good lubrication, it is very manageable if you already like slightly chunky sizes.
Texture and materials
The coating is made of silicone, firm, with a soft, matte touch.
The conductive plates are placed on the sides of the body, under the silicone. They are well integrated (you cannot see them at all) and do not break the overall line of the toy. The whole thing inspires confidence, cleans easily, and raises no particular questions regarding maintenance.
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I asked myself a very silly, but frankly legitimate question while handling it: how can electricity from metal plates pass through silicone when silicone, in principle, is precisely an insulator?
The answer is cleverer than it seems. The silicone used here is not pure silicone. To make the surface conductive, particles like carbon or graphite are mixed into it before the material hardens. These particles create small, invisible paths inside the silicone, allowing the current to flow instead of remaining blocked: this is how conductive silicone is obtained. The metal plates beneath the surface distribute the current over a wider area, like a diffuser, in order to avoid a point of contact that is too concentrated and therefore unpleasant. As a result, electricity travels through the silicone layer much more evenly.
The conductive silicone is non-porous.
Powering the Mystim Sizzling Simon
The Mystim Sizzling Simon is battery-operated, with a magnetic USB cable to charge it. Nothing very exotic on that front. The system is simple, recharging is effortless, and the battery life is quite good.
Controls and modes
The Simon offers two very distinct families of stimulation, each with its own settings. On the one hand, vibrations. On the other, electrostimulation. The interface relies on six buttons in total, which allows for a fairly clear separation of functions. The top buttons manage the e-stim, the bottom ones the vibrations.
On paper, it is somewhat logical. In hand and before use, it is quickly understood. The problem mainly arises when you want to change settings during use. Then it becomes less instinctive. Once the toy is correctly placed, the reference points are not always easy to find by touch. It is not disastrous, but it is not smooth either.
In terms of programmes, there is plenty to do. The vibrations offer eight different rhythms and five power levels. As for electrostimulation, it has five programmes available in ten intensity levels, allowing for a fairly fine progression of power.
In short, the control interface is comprehensive, but a little cluttered. It requires some time to get used to. Once you understated the logic, it gets better, but we are far from the ultra-intuitive toy that you can steer without thinking about it.
Using the Mystim Sizzling Simon
For use, it is better to favour a water-based lubricant, as electrostimulation relies heavily on good contact conditions.
This is obviously where the Sizzling Simon is truly judged. And what I took away from my tests is that it should not be approached as a simple vibrator that is just a bit more original than the rest. If you use it solely for its vibrations, it remains good, but you miss its main appeal. If, however, you agree to explore its dual language, then it becomes much more interesting.
The Mystim Sizzling Simon is large, without being disproportionate. It fills nicely, it settles with an obvious presence, and its curve is felt quite quickly. For me, the key is simple: genuine arousal, generous lubrication, and no rushing. Under these conditions, it can be tamed quite well. Its diameter is noticeable, but it delivers a clear sensation of fullness, rather than an anatomical challenge.
I started with just the vibrations, just to have a clear basis for comparison. They are good. Not revolutionary, not the wildest like those of the Big Boss G5 Fun Factory for example, but good. The dual motorisation has its uses: the head provides more targeted stimulation against the G-spot, while the body of the sex toy diffuses the vibrations further.
Then comes the electrostimulation, and this is where we leave familiar territory. The first thing I noticed was that the feeling is nothing spectacular in the Hollywood sense of the term. We are not experiencing a dramatic lightning bolt or a caricatured shock. It is more subtle, cloudier, more internal. At low intensity, I felt a sort of diffuse fizzing, like little pulses waking up the tissues from the inside rather than hitting them. It is not intuitively the most “sexy” sensation in the world after three seconds, but that is exactly what makes it fascinating. The body begins to respond differently.
As you gradually increase the power, the effect becomes clearer. The internal muscles react more, the perception becomes focused, and the arousal changes texture. It is a somewhat abstract expression, I know, but that is genuinely what I felt. The vibration builds a known base, rather physical, quite direct. The e-stim adds something sharp, more unpredictable. The mixture of the two does not result in a simple sum. It creates a different sensation, less linear, less mechanical.
What I liked most was the way the e-stim accentuates internal contractions: pleasure spreads in waves rather than fixating on a specific point. It is ideal for deep sensations, but it is not a toy for an “express” session. Between the settings that need fine-tuning and the awkward access to the buttons once inserted, it demands attention and patience that will not appeal to everyone.
I also found that certain settings worked better than others. If you turn everything up to the maximum, the feeling becomes blurry, almost saturated. On the other hand, a balanced dosage allows the uniqueness of the toy to shine. The Simon is less immediate than a classic vibrator, but much richer as soon as you take the time to find the right combo.
The flaws are quite clear. First, you must be receptive to e-stim. If the very idea of this stimulation seems unpleasant to you, the Simon loses most of its appeal. Secondly, the controls are a bit annoying in a real-life situation. Finally, even if its size is nothing extravagant, it remains that of a large internal vibrator. So if you prefer slim, agile toys that are easy to handle with one hand without overthinking, you might find it a bit too massive.
But when the desire is there, when the body is ready, and when you take the time to find the right setting, it has something very unique. It does not just try to go harder. It offers something else.
Conclusion on the Mystim Sizzling Simon
The Mystim Sizzling Simon is a well-thought-out hybrid sex toy, which mixes internal vibrations and electrostimulation without feeling like a gimmick. Visually, it remains very sober. Format-wise, it is large but not disproportionate. Price-wise, we are looking at the high-end with a consistent rate for this category, no more, no less.
What makes its appeal is not its look nor a supposed immediate wow effect. It is the quality of the experience it can offer when you want to explore less conventional internal sensations. The vibrations are solid, the e-stim is interesting, and above all, their combination produces something quite rare in a standalone toy.
It also has its limits. The interface lacks a bit of obviousness, getting to grips with it requires an adaptation period, and it is not a model I would recommend to someone simply looking for an uncomplicated vibrator. However, for a person already comfortable with internal sex toys, curious about sharper and more diffuse sensations, it is a highly convincing option.
Review score
Pros
- Intensifies internal contractions
- A fascinating mix of sensations worth exploring
Cons
- The controls are a hassle
- Less straightforward than a standard vibrator
It is not the most spectacular sex toy to look at, but it has much more to say once turned on than many far more demonstrative models.
