Cool Fire IV Plus / iSub APEX Kit by Innokin

Cool Fire IV Plus / iSub APEX Kit by Innokin

Product no.: INN-CFIVPLUS
Normal Price £65.95

+ P&P if applicable





Cool Fire IV Plus with iSub APEX Kit by Innokin


The CoolFire IV Plus is the latest in the line of intelligent box mods from Innokin. Featuring an internal 3300mAh battery, the device provides variable voltage from 3-7.5V and wattage from 6 to an amazing 70W. The large firing button has the Innokin three colour quick battery level indication and on/off feature.

This kit includes the iSub APEX tank by Innokin and is packaged with 2 x 0.5Ω coils with organic cotton (1 installed in the tank and 1 spare). The iSub APEX tank matches the CoolFire IV Plus quite well and features the quick and clean top-fill system. The iSub APEX is built with top quality stainless steel and Pyrex glass with a durable 510 connection for maximum compatibility with your other devices. The Innokin PRISM Flavor+ design creates excellent flavour and vapour while helping to keep leaking to a minimum from the top side adjustable air flow inlet slots. Find the vape you're looking for by trying the full range of iSub coils (available separately) from cool, enjoyable 2.0Ω to the high wattage cloud production Clapton coils.

CoolFire IV Plus Features

  • Stylish portable Variable Wattage box mod
  • Choose from 4 colour options
  • 3300mAh capacity internal battery
  • Gold plated spring-loaded centre pin with stainless steel 510 threading
  • 6 - 70W / 3-7.5V (Max. output current 26.5A)
  • Support for atomiser resistance 0.1Ω - 3.5Ω
  • Built-in bright OLED display
  • Large Ergonomic Power button with colour changing battery level indication and ON/OFF feature
  • Short circuit protection
  • "Vape while charging" capability
  • 2A USB fast charging (with suitable 2 Amp USB mains adapter or powered hub)

iSub APEX tank features

  • 100% Stainless Steel construction
  • Pyrex viewing windows
  • PRISM Flavour+ Boost air flow design with a wide range of adjustment
  • 2 x 0.5Ω heads (1 installed and 1 spare)
  • Easy to change coil system
  • Easy to top up with the top-fill design
  • Wide range of replacement coils (available separately)
  • 3ml liquid capacity (approx.)
  • Removable standard 510 style drip tip with topside air adjustment slots.

Kit Contents:

  • 1 x Innokin Cool Fire IV Plus Device
  • 1 x iSub Apex tank with 0.5Ω head installed
  • 1 x Spare iSub 0.5Ω head
  • 1 x Innokin Micro USB charging cable
  • User manual

Compatible heads available separately
iSub Replacement Heads

Please note: To take advantage of the fast charging 2A you'll need a capable USB adapter plug.

Coolfire Device
Height: 86.5mm
Width: 46.5mm
Depth: 25mm narrowing to 21.6mm
iSub APEX Tank
Length: 50.5mm (not including drip tip or 510 thread)
Diameter: 22.5mm

Warranty: 60 days (device only)

Important:This is a single battery kit. Those relying on their vaporiser to entirely replace traditional cigarettes should ensure they have more than one unit on hand to use in the case of damage, loss or failure. Atomiser heads are disposable consumable parts and as such, are covered by our DOA warranty only. Please see our Terms and Conditions for more information.


Additional product information

Safety Information Download


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