The Innokin CoolFire IV:

Powerful! Fires 3 – 7.5 V/ 6 – 40W! with a Maximum
Long lasting: 2000mAh hour battery!Output of
Compact: Only 86mm / 3.93” Tall!
Beautiful: Initially available in 6 vibrant & lasting finishes.
Intelligent: Vape Timer, Puff Counter, Integrated Short Circuit protection, Left/Right Screen Orientation, 15 Second cutoff & more.
Precise: RMS DC accurate to a power deviation of 0.5W & fires resistances from 0.2 – 3.1Ohm.
Easy to use: 3 Buttons for Total, Precise, & Comfortable Control.
Always Ready: Charge the CoolFire IV with a st&ard Micro USB cable & vape at the same time with Innokin’s ‘Vape while charging’ technology.
We finally have a new Innokin output that has decent specs! 40 Watts!

The Innokin Cool Fire IV comes in six different colors!

In The Box

The Innokin Cool Fire IV is packaged almost precisely how the MVP II was packaged. It comes in an iPhone like a plastic box with the device showing. This kit doesn’t come with a tank. Just the device, charging cable, & an adapter.

Here’s what came in the box.

Innokin Coolfire IV
USB charger cable
eGo Threading Adaptor
User Manual

Build & Looks of the Cool Fire 4

Using the Innokin Cool Fire 4 out of the box & I have to say I am immediately impressed. The form factor & finish is superb.

The box mod is available in 6 colors, I went safe & purchased the black.

The main body is made of stainless steel & has a kind of grained, wood effect sort of finish that may sound a small naff, but Innokin have done a great job with this, it looks quality.

The actual shape of the body is designed to fit well in the base of your palm & again with it bent form it achieves this effortlessly.

The ‘fatter’ part of the body allows you to sit a 22mm tank on top in a way that it sits in the bracket of the outer body material perfectly.

I studied this with the Innokin iSub Tank & it looks great sitting on top.

The end, top & base of the mod is stable, smooth stainless steel.

The power button, screen, function buttons & micro USB port are housed on the top, the latter enabling you to charge the device while keeping it stood upright.

The base of the MOD has a recessed on/off switch doesn’t prevent with the aerodynamics of the device.

The only thing I can see as a downside is that there is very slight button rattle from the two small function buttons.

This can be a nuisance for me, but this is (for my tastes) one of the best looking box mods I have reviewed to date & has the property to match.

Due to this a little button rattle can be forgiven!

Size wise it’s on a par with the 50W iStick if you happen to have practiced this. For those that have had the MVP2, it’s about the same width & 1cm shorter.

Due to the curved design though it looks a lot smaller all around.

Innokin have thought this design through thoroughly. Excellent stuff.


Innokin iSub tank

The first sub-ohm tank from Innokin, the iSub is constructed of 100% stainless steel for extreme durability. Inside the tank is a German-made polycarbonate tube that can hold up to 4ml of e-liquid.

The No-Spill Coil Swap System has compartmentalized the coil & tube configuration to make coil changing a breeze. Dually adjustable air vents that are 12mm wide allow users to customize their vaping experience with just a few clicks.

The iSub tank comes with a pre-installed 0.5-ohm coil built with Japanese organic cotton for the purest & cleanest flavors. It can quickly fire at high wattages to match Innokin’s CoolFire 4 box mod.


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