Innokin Cool Fire 4 Plus Kit with iSub Apex Tank

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The Innokin Cool Fire 4 Plus Kit with iSub Apex Tank is the upgraded version of the Cool Fire 4, this time bringing even more to the table.

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Innokin Cool Fire 4 Plus Kit iSub Apex Tank

Innokin Cool Fire 4 Plus Kit iSub Apex Tank is the better version of the Cool Fire 4, coming with a 70 watt output and a very ergonomic style. The new Cool Fire 4 plus also comes with a huge 3300mAh battery that allows vaping for extended periods of time without charge. Resistances as low as 0.1 ohms are supported. The OLED Screen is very neat so that all important information can be read without eye strain. This vape kit also features the usual safety features, like reverse polarity protection, short circuit protection, and ten second cut-off, making it safe to use.

The included Innokin iSub Apex tank has a 3mL capacity for use with your vape juices. The PRISM Flavor+ feature is also included to boost the taste of these juices and make them more pleasant to vape with. The iSub Apex is universal with all iSub coils, so if you upgrade, you can use your old coils if you previously had an iSub tank. All in all, the Innokin Cool Fire 4 Plus Kit with iSub Apex Tank is a great purchase that brings together power and many great features. Use it to get some of the best flavor in the whole entire industry.

Coolfire 4 Plus Specs and Features

  • 22mm Diameter
  • Output Wattage of 6 to 70 Watts
  • 3300mAh Battery (internal)
  • 2 to 7.5 Volt Operation
  • Minimum Resistance of 0.1 ohms
  • Micro USB Port for Charging
  • Spring Loaded 510
  • Protection from Short Circuit, Low Resistance, Overheating, Reverse Polarity, and More

iSub Apex Specs and Features:

  • 22mm Diameter
  • 3mL Tank Capacity
  • PRISM Flavor+
  • Easy Top Fill
  • Adjustable Dual Airflow
  • Stainless Steel and Pyrex Glass Construction
  • Uses iSub Coils

Innokin Cool Fire 4 Plus Kit with iSub Apex Tank Includes:

  • One Coolfire 4 Plus
  • One iSub Apex
  • One Micro USB Charging Cable


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Additional information

Battery Capacity


Charging Type

Micro USB

Coil Resistance

0.5 ohm

Coil Types



Black, Blue, Red, Silver

Device Features

Cutoff Timer, OLED Screen, Spring Loaded 510

Device Dimensions (L*W*H)

L – 46.5mm * W – 25mm * H – 86.5mm

Minimum Resistance VW

0.1 ohm

Maximum Output Wattage


Tank Capacity


Tank / Atomizer Diameter


Tank Features

510 Connection, Airflow Control, Delrin Drip Tip, Pyrex Glass, Removable Drip Tip, Top Filling