Joyetech Espion Silk Notchcore 80W Review

As one of the bigger names in the box mod world, Joyetech can pretty much do whatever it wants. That includes coming out with multiple variations on the Espion model name. We reviewed the Espion Solo earlier this year, and here we are again checking out the Joyetech Espion Silk vape mod. It jumps out as something different, and let’s find out if that’s a good thing or not

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Well, that’s different, isn’t it? That was the initial reaction to the Espion Silk and in some ways it remains in how we look at it. This design isn’t that different in shape and it has all the relevant parts where you would expect, but… silicone? That looks like it’s been slapped together haphazardly on a vape mod using glue? That wasn’t how it felt of course, but we were highly skeptical of the look that Joyetech went with on this version of the Espion series. We later found out that the choice of silicone on the outside was driven by a need to be hypoallergenic.

The thing is, have you ever heard of someone being allergic to their box mod? Yea, neither have we. Despite the odd look, there are some real benefits to what Joyetech turned out. Sure, you may not be allergic to vape mods, but do you ever drop them on accident? With all the sleek looking mods out there, I know I’ve dropped my fair share. That won’t happen with the Espion Silk. This type of silicone rubber, with an indented design for ergonomics, simply sticks to your hand. It feels amazing! If we didn’t have to look down and see how silly it is aesthetically, we would be in love with the functional design.

Beyond the much ballyhooed talk of the weird looking exterior, this is a box mod that has a rather good build to it. There is no battery door so you don’t have to worry about any rattle, because it uses an internal battery. The large fire button is also silicone covered and sticky, so it feels more like an extension of your hand rather than a button. It’s very light, due partly to the materials used to make it, and it feels surprisingly sturdy. The included NotchCore tank has all the making of a high quality product, with gold connections and good makeup all around. It feels like it should vape well, which is what we’re on to next.


Topping out at 80 watts, and looking as it does, this box mod had something to prove. Thankfully, Joyetech was determined not make this some kind of play toy. The power itself is more than enough to drive the included NotchCore tank and the 0.5ohm Notch coils it comes with. That’s really where we see something different here, as this tank is almost a rebuildable in how it’s designed. Rather than needing to replace your entire coil head, there are just these little Notch coils that become spent.

The coils themselves are of very high quality and are clearly laser cut. They aren’t like wrapping some wire around cotton. In fact, the included cotton can itself be removed and replaced when it gets gunked up with vape juice remnants. This allows you to extend the life of the coil itself and use it a few times with a brand new piece of cotton, before you have to toss the whole thing. This kit comes with 5 notch coils to start, which should last you a while.

Looking at it now, it’s really the Notchcore tank that does a lot of the heavy lifting in providing some really excellent performance. The Espion Silk box mod does a good job of providing power, but you don’t need to take it up to 80 watts. The sweet spot is around 35-50 watts, and you’ll get some really incredible flavour with much bigger cloud size than you would expect from a device so small and light. Truly this is where this vape mod shines, and we were rather impressed.


Again we are met with a full size set of features on a device that at least outwardly looks to have gone the cheaper route. You get your variable wattage mode of course, and you get a rather decent temperature control mode that handles nickel, stainless steel, and titanium. But you also go an adjustable TCR mode which really lets more advanced vapers have fun with it. Last but not least, you can unleash the full power of the battery with the bypass mode.

Here’s a list of the important features:

  • 1 to 80W Power Output
  • VW/TC(Ni/Ti/SS)/TCR/Bypass Output Modes
  • Resistance Range: 0.5-3.5 ohm VW, 0.05-1.5ohm TC
  • Temperature Range: 100-315C/200-600F
  • 2800 mAh internal Battery
  • 0.69” OLED Screen
  • Spring Loaded 510 Threading
  • Size Specs: Depth 29mm/ Width 40mm/ Height 120mm (with tank)

Kit Layout:

Kit Contents:

  • 1 Espion Silk Box Mod
  • 1 NotchCore Tank
  • 5 0.5ohm Notch Coils
  • 1 User Manual

Ease of Use:

No fuss here, as Joyetech includes a really simple vape mod menu. You can easily find what you need in just a few steps. We wish the screen was a little larger as it makes it hard to see in daylight, but that’s something you adjust to. The NotchCore tank also makes your life easy, using a top fill design. Just push aside the drip tip to reveal the filling hole and click it back into place when you’re done. Easy, as it should be. The internal battery won’t last you the whole day if you run at 80 watts, but most people won’t do that. It should get you through most of the day, if a little less, depending on your vaping setup


The best price we found among our list of reliable vendors is £59.99. For an 80W box mod with a tank included, that’s a good price. For a high performing 80W box mod with a clever tank that lets you re-use your coils? That’s a great price. Cost is definitely not a factor here

The Verdict:

We were surprised with how quickly we came around to the Joyetech Espion Silk 80W vape kit. This box mod really did look cheap on the outside, and the light weight and plastic parts where we expected metal added to that feeling. We did understand the advantages of silicone rubber and we loved the way it felt, but it still felt like that wouldn’t be enough to carry the day.

That is, of course, until we actually vaped with it. We’ve been singing the praises of the NotchCore tank both in performance and functionality. Usually with these types of mid-low wattage box mod kits you get a very basic tank that doesn’t always allow you to understand the range of performance. Not so here, as the NotchCore leads the way in making this a portable and lightweight favorite of new vapers and veterans alike. If you can get over the ugly look, which is subjective anyway, you may very well fall in love with this device. Beauty is only skin deep, right? That’s certainly the case here.

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