The Innokin Axiom Sub-Ohm Tank Review

Today Bill has a vape on the all new sub ohm tank called the Axiom. Is it just another sub ohm tank or is there something special about it that separates it from the rest?

Innokin Axiom Silver Black

Innokin Axiom Intro

Innokin is a Chinese vaping hardware company best known for its box and tube mods, the most famous of which was the Innokin iTaste MVP, from back in the early days of variable voltage mods, way back in 2013. The MVP was just an oversized box with sharp edges that was uncomfortable to hold, slow to recharge via USB, overpriced, and underpowered. Nonetheless, vapers loved them, swore by their industrial build quality and near-indestructibility, and used their MVPs often far beyond their technical obsolescence, until their LiPo batteries finally gave out.

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Innokin Axiom Gallery

Innokin Axiom Specs and Features

Kit Content

  • One Axiom Sub-Ohm Tank System
  • One Axiom RBA Head
  • One Single Coil Adapter
  • One Additional Glass Tank Section
  • Extra O-Ring and Screw Pack
  • User Manual


  • 22 mm Diameter
  • Two Post RBA Deck and Axiom Coil System
  • Two Post RBA Deck
  • Single Terminal Per Post
  • 2 mm Diameter Post Holes
  • Hex Screwed Secured
  • Dual 3.5 mm Internal Airholes
  • Engraved Chimney
  • Threaded
  • Quad Wicking Ports
  • Included Single Coil Adapter
  • Axiom Coil System
  • Dual Horizontal Coil Design
  • 0.5 ohm
  • 20 to 40W Range (Wattage Mode Only)
  • Dual Wicking Ports
  • Triple Adjustable Airflow
  • 10 mm by 1.5 mm
  • Top Fill System
  • 3.5 mL Tank Reservoir
  • Triple Fill Ports
  • Short Glass Viewing Window
  • Allows for Greater Tank Capacity
  • Proprietary Delrin Drip Tip

Notable Remarks


Online prices for the Innokin Axiom Tank vary from $20-25, depending on the vendor. As with all vaping hardware, Chinese vendor sites tend to be on the low end of the price range, while American sites lean toward the higher end of the range.


Innokin Axiom Taken Apart

Since the beginning of the sub-ohm, higher-power movement in tanks and box mods began in autumn of 2014, and more so over the past year, sub-ohm tanks have naturally tended to cluster in either of two groups: high power or moderate power.

Many of the best known and most popular sub-ohm clearomizer tanks are high-power. That list includes such notables as the Uwell Crown, SMOK TFV4, FreeMax Starre/Starre Pro, Herakles, and Arctic tanks, all of which are designed for use at power levels that start at about 60 watts and work upwards from there. Depending on what factory head is used, these tanks may handle in excess of 100 watts.

The other group is low- to mid-power sub-ohm clearo tanks that are designed to be vaped at 50 watts or less. This group includes the various Aspire sub-ohm tanks (Atlantis I and II, Triton, and Cleito), the eLeaf Melo series (1, 2, and 3), and now the Innokin Axiom Tank.

The high-power tanks are certainly impressive for both flavor and vapor production, but in some ways the low- to mid-power sub-ohm tanks are even more impressive, since they provide satisfying flavor and copious vapor at moderate power levels. The Innokin Axiom is no exception.

The Axiom’s design makes for high efficiency. For such a small, compact tank, it provides generous eliquid capacity (3.5 mlL). Many tanks of the Axiom’s size can hold only 2 mL of eliquid.

Filling the tank by unscrewing and removing the chuff-style drip tip is easy. I especially appreciate that the inner diameter of the stubby chuff drip tip allows any standard 510 drip tip to be securely mounted on top. I prefer the extra length and cooling of vapor that a longer drip tip provides, and not being forced to use a special adapter is a distinct plus.


Innokin Axiom RBA

As readers of my reviews on Vaping360 may already know, I’m not generally a fan of sub-ohm tanks designed to use factory clearomizer heads that are marketed with RBA decks, essentially turning them into hybrid RTAs. When well-done, these add-on build decks can be wonderful, but too often such decks are small, cheap, and cramped. While the Innokin Axiom tank’s diminutive size makes the included RBA deck rather small, the quality is high, and performance is stellar. In addition, the deck comes with a plastic adapter that allows to user to choose either single- or dual-coil builds.

That said, the factory head that comes with the Axiom is very good. It’s a dual-horizontal coil head that is reminiscent of the coil heads used in the older Youde Zephyrus tank. In my experience, the Axiom’s head is even better than those for the Zephyrus, since they provide a stunning vape experience at very low wattage. I was quite happy vaping the Axiom with the factory head at a mere 35 watts. At that modest power, the vape experience provided by the dual-coil head was full, rich, and satisfying.

I did a single-coil build on the included RBA deck (my standard SS316L spaced coil that came in at 0.52Ω), and performance was very good, basically equivalent to the dual-coil factory head. I’m especially pleased to report that the Axiom is one sub-ohm tank that gives the user the option to use either head — the pre-built factory coil or the RBA build deck — with no sacrifice in vaping quality. Both heads perform brilliantly.






From the moment I filled the Axiom Tank and began vaping with it, I was instantly a fan. The tank is not at all fussy in any way I could find, and, despite the RBA deck’s relatively small size, it was a pleasure to build and vape.

As far as I’m concerned, Innokin has hit a home run with the Axiom Tank. As a hybrid RTA that combines a sub-ohm clearo tank with an included RBA deck, the Axiom wins a blue ribbon from me.

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Bill Herbst
My name is Bill. I’ve been a dedicated vaper for five and a half years, having ended a 35-year addiction to tobacco cold-turkey on my first day of vaping. I live on the Oregon coast, in the tiny town of Florence, one huge sand dune away from the Pacific Ocean.