The Innokin Coolfire IV Plu iSUB G 70W is effectively the same kit as the iSUB Apex just with a different tank. The much improved power unit and increased battery capacity give the vaper more flexibility and vaping time between charges.

Packed with 70Watts of precise output that can fire down to 0.1 Ohm and a long lasting real 3300mAh battery, the CoolFire IV Plus is designed to be the top of the line compact all day vape. Curved to fit perfectly into your hand, with an ergonomically placed power button, this new Innokin is a true pleasure to vape. The CoolFire IV Plus is easy to charge via microUSB.

The Plus model features quick charge function (via 2amp charger sold separately) and has proven on-board advanced safety features including overheat and over-discharge protections.

The ISUB G Kit comes with the updated iSUB Tank, which as rthe name suggests, is capabale of sub-ohm vaping thanks to the Japanese cotton coils firing as low as 0.2 ohm. Replacement coils for the G tank are available in 0.2, 0.5 and 2 ohm covering all vaping needs. The sturdy pyrex tank has an upgraded capacity of 3.8ml increasing the times between refills. 

A great sub-ohm kit, the Cool Fire IV Plus iSUB G is a great choice. 

Availability: Out of stock




Product Description



  • 1x Coolfire IV Plus 70W box mod
  • 1x iSub G Tank (0.5ohm)
  • 1x extra iSub coil (0.5 ohm)
  • 1x Micro USB cable
  • 1x English manual

  • 70W Power 
  • Long lasting 3300mAh battery
  • Big, bright OLED screen
  • Large, ergonomic ON/OFF button at base
  • 3 click lock/unlock
  • Tri colour LED battery level indicator
  • Vrms power regulation
  • 15 second cutoff timer
  • Convenient MicroUSB charging (vape whilst charging)
  • Advanced onboard safety features
  • Overheat and overdischarge protection
  • High quality stainless steel 510 thread
  • Spring loaded, gold plated positive pin
  • Good looking case with durable finish
  • Operating Voltage: 2-7.5 Volts - can be adjusted in 0.1V increments
  • Operating Wattage: 6-70W - can be adjusted in 0.5W increments
  • Coil Resistance: 0.1-3.5 Ohm
  • iSub Coil Compatible (2x 0.5ohm coils inside)

Additional Information

Additional Information

Power51-100W Box Mods
FeaturesVariable Voltage & Wattage (VV/VW), Adjustable Airflow, Small & Light, Box Mod, Sub Ohm, 510 / eGo Compatible


Customer Reviews (4)

ExcellentReview by Matt Hill
I bought this as i looked at the reviews and decided to go for it i am glad i did. The battery is excellent it lasts me a few days and the tank lasts a few days too without having to refill all the time.
It's easy to use and being able to adjust the power is excellent .
Thanks Vape Superstore for a quality product and an excellent buy my missus now has one as she loved mine. (Posted on 14/10/2016)
Huge tank, great mod!Review by Vape4Life
I love this little mod, especially the fact that the tank is HUGE and so I can usually go for awhile without having to refill - which is a total pain in the butt for me. Even without the big clouds, I wouldn't use any other mod. (Posted on 05/08/2016)
Upgraded, and couldn't be happierReview by Maya
I bought this when I decided to upgrade from the COOLFIRE IV PLUS + iSUB APEX and I'm so happy I did. Love the Innokin name, but this model just has much more power, and a much longer charge from the battery. (Posted on 22/07/2016)
Thanks Vape superstoreReview by Joan
Thanks Vape superstore, When i rang you helped me choose my first sub ohm kit and this one is working great. Its simple to use and looks really good. Big thanks to your excellent customer service team (Posted on 30/06/2016)

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