OXVA Arbiter 2 RTA

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OXVA Arbiter 2 RTA

Review of the OXVA Arbiter 2 RTA.

The team at OXVA is continuously working hard to offer us the best possible vaping experience, to refine and further develop its product range. The newest addition to this development is the reinvented one Referee 2.

About OXVA

OXVA is one of the fastest growing e-cigarette brands founded by Justin Lai along with a team of passionate and experienced personalities who share the same values. Together we plan to accomplish our mission by sticking to our beliefs that not only deliver the best quality products but also provide great customer service.

OXVA consists of OX (powerful and reliable workhorse) and VA (first half of vape). OX represents our passion for the vaping industry and symbolizes the courage and fearlessness of those vapers who have switched from traditional cigarettes to vaping. It also represents our value in seeking high quality, high performing products.


Small and big leaps forward! As an improved mini version of the Original referee, the Referee 2 features a top-to-bottom airflow on its postless build deck that further enhances flavor while preventing leakage.

What's in the box

  • OXVA Arbiter 2 RTA
  • Replacement glass (only non-TPD version)
  • Accessory bag
  • User Guide

Product highlights

  • T2B fanned airflow
  • Smaller, more compact design.
  • 100% leak-proof design
  • Postless build deck
  • Single or double coil options
  • Inseparable airflow chamber


  • Dimension: Φ26mm (Bottom: Φ24.5mm) * 52mm
  • Capacity: 5 ml (Bubble Glass) & 3.5 ml (straight glass) & 2 ml (TPD)
  • Weight: 77g
  • Material: SS, glass, resin
  • Airflow: Adjustable from top to bottom.
  • Deck: Postless
  • Connection: 510
  • Drip tip: 810 & 510 drip tip

The Arbiter 2 is available in a range of stunning colors.

Stainless steel, matt black, golden, gunmetal and rainbow.

You may be wondering why the arbiter needed an upgrade so soon after it was introduced. OXVA's chief designer Justin Lai stated that he wanted to respond to customer feedback by developing a more compact arbiter while maintaining its sealing properties and giving builders as much space as possible to house their single or dual coil builds to position. And the best possible aroma.

The original Arbiter measures 28mm which is slightly wider than the average mod on the market today, hence the desire to downsize the Arbiter 2 which measures 24.5mm at the base and 26mm above the waist which is definitely more suitable for most of today's mods.

T2B fanned airflow

As part of this facelift, Justin also refined the airflow design. in line with the original top-to-bottom design, but this time the airflow is delivered through a fan-shaped defuse to ensure maximum coverage of the coils, whether single or double coils. I have to say that this redesign definitely improved the entire vaping experience. For a much smoother pull with less noise and interference. Plus a fuller, more precise taste in my opinion.


The other big benefit of placing the external airflow slots above the tank is the fact that you can guarantee that the RTA will be 100% leak-proof no matter how long your tank is standing or what pocket you put it in. If you think about it, all tanks should be designed like this. Since it never seems to matter how well you are directing your lower airflow tank, they always seem to leak, especially after you fill them up. But neither with the Arbiter nor with the Arbiter 2. Dry pants all around.


The original Arbiter deck, while easy to build, was pretty proscriptive in terms of the coils you could use and positioning.

The new deck, although a bit more difficult to build because it sits tight between the air baffles, definitely gives you more freedom in building with more space so you can choose between fat single or narrower dual coils. Although the wider wick openings tend to be more of a pair of double coils in my opinion to prevent flooding.


Deviating from the removable airflow chamber in the original arbiter, they opted for a standard design that is less fiddly, making the airflow chamber part of the internal chimney section, making it easier to set up when reassembling the tank. This design change does not affect the performance or serviceability of the RTA in any way.

Easy to build

I found both the arbiter and version two, both of which are super easy to build, with the later one giving you more leeway to personalize your build and fine-tune it, for both flavor and vapor production.

I definitely found the Arbiter 2 more suitable for a dual coil build, although you need to make sure the coils are precisely spaced as there isn't too much space when using the included claptons.

The wicking just seems to be more balanced when running dual coils and was a little concerned when I ran it with single coil that it would flood due to a lack of cotton when it wasn't.

You will also need to calculate and carefully trim the leg length of the coil to make sure you get the correct height. Could have used some sort of guide telling you where to cut them in order to place them perfectly. In the end I just winged it and trimmed it by the eye. And seemed to work fine, sorry, didn't measure it, so can't pass on the knowledge.

Taste & performance.

I was super impressed with the taste that poured out of the pair of coils, I was also ready to say it was better than the original. And after using it for a month, it's definitely in my top 5 RTAs, which says a lot when you see how many RTAs I have. I'm not sure if it's the fan airflow, or the positioning of the coils in the reduced chamber, or even the height between the coils and the drip-tip. But it just works so well, and most importantly, it works consistently well. Build by build so you know it's not just a happy build. Or one from wicking.

I would put the taste on par with an RDA. So much for the taste reproduction. The coils seem to be getting just the right amount of eliquid so as not to overcook the flavor. Very impressive.

Final thoughts 💭

I was so impressed with an OXVA product, the Velocity Pod-Mod, is my all-time favorite Pod-Mod, except for none. And the Arbiter 2 is now one of my favorite RTAs. I can only attribute this to the perfection Justin strives for. And as demonstrated with the arbiter, if he thinks he can improve it, then he does. Put vaping perfection at the center of its design process.

Referee 2.

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