OXVA Unione Review: Is the World’s First 10ml Pod System Worth It?

If you’ve been looking at pod kits recently, you’ve probably noticed the OXVA Unione cropping up everywhere. The claim — world’s first fully TPD compliant 10ml pod system — is bold enough to make you pay attention. But does it actually deliver? This review covers everything you need to know before buying, including how the 10ml system works in practice, who it’s genuinely suited to, and how it compares to other popular pod kits in the UK right now.

What Is the OXVA Unione?

The OXVA Unione Pod Vape Kit is a compact refillable pod kit built around a single standout feature — a 10ml pod system that holds five times more e-liquid than a standard 2ml pod. It achieves this within UK TPD rules by combining a 2ml vaping pod with an attached 8ml side reservoir in one unit. As the 2ml chamber empties during use, e-liquid flows through automatically from the reservoir. You never manually top up the pod — only the reservoir, and only when the full 10ml has been used.

The rest of the device is a well specified everyday kit. 1100mAh battery, two power modes, a hidden 0.96 inch display, and OXVA’s Unitech 2.0 anti-leak technology. It’s designed for nic salt users who want the simplicity and low maintenance feel of a prefilled pod system but with the cost savings of a refillable one.

How Does the 10ml Pod System Actually Work?

This is the question most people have when they first hear about the Unione. The answer is simpler than it sounds.

The pod you put in the device is made up of two connected sections. There’s a 2ml vaping chamber at the top — the part with the coil in it — and an 8ml reservoir attached to the side. When you vape, e-liquid is drawn up from the reservoir into the 2ml chamber continuously. The chamber stays consistently filled throughout your session without any input from you.

When the entire 10ml is eventually depleted, you open the top fill port and add up to 8ml of your chosen nic salt directly into the reservoir. That’s it. One refill action, up to 8ml at a time, compared to the multiple daily top ups a standard 2ml pod requires.

In practice it feels remarkably close to using a prefilled pod kit — you set it up, vape throughout the day, and rarely think about e-liquid levels. The difference is you’re choosing your own e-liquid and spending a fraction of what prefilled pods cost over time.

Who Is the OXVA Unione For?

The Unione is the right kit for a specific type of vaper. Get this right before you buy.

It’s ideal if you:

• Currently use a refillable pod kit and find yourself topping up two or three times a day
• Are switching from a prefilled pod system and want a refillable option that doesn’t require constant attention
• Vape nic salts or 50/50 e-liquids and prefer a tight MTL draw
• Want a low maintenance, pocket-friendly device for everyday use
• Are looking for a genuinely different pod kit rather than another variation of what you already have

It’s not for you if:

• You prefer sub-ohm, DTL, or high wattage vaping — the 0.8Ω coil is built for MTL only
• You want full wattage control — the Unione gives you two modes and that’s your lot
• You use high VG shortfills — they won’t wick properly through the pod system and will shorten coil life

Eco Mode vs Boost Mode — Which Should You Use?

One of the most practical questions Unione users ask is which mode to use day to day. Here’s the honest breakdown.

• Eco mode is the everyday setting. Lower wattage output, lighter draw, extended battery life, gentler on the coil. For all-day vaping on a single charge this is where you want to be. It also extends pod life because the coil runs cooler.
• Boost mode is for when you want more. Warmer draw, denser vapour, more intense flavour from your nic salt. It’s useful for shorter sessions when you want to get the most from a particular flavour, or when you’re switching from a higher-powered device and the lighter draw of Eco doesn’t feel quite right yet. Battery drains noticeably faster in Boost and the coil runs warmer, so for extended daily use it’s worth switching back to Eco.

Most users end up defaulting to Eco and switching to Boost occasionally. That’s the intended use.

OXVA Unione vs Other Popular Pod Kits

How does the Unione actually stack up against the alternatives?

The Unione’s battery is lower than its direct competitors, which is worth noting. Where it wins decisively is the pod capacity — no other kit comes close to 10ml. If refill frequency is your main frustration with pod kits, the Unione solves it better than anything else on the market. If battery life is your priority and you’re happy topping up a 2ml pod, the OXVA XLIM Go 2 at £9.99 is the more practical choice. If you want the most features for your money, the Vaporesso XROS 5 at £23.99 is hard to beat.

How to Get the Best Performance from the OXVA Unione

A few practical tips that make a genuine difference:

• Prime the coil properly. After filling the reservoir for the first time on a new pod, leave it for at least five minutes before vaping. Rushing this is the most common cause of dry hits on the first draw.
• Use nic salts or 50/50 e-liquids at 10mg or 20mg. High VG e-liquids won’t wick efficiently through the pod. Stick to nic salts for the best results — the 0.8Ω coil is built specifically for them.
• Don’t wait until it’s bone dry. Topping up the reservoir when it gets low rather than running it completely empty keeps the coil running cleanly and extends pod life.
• Avoid high-sweetener e-liquids if you want longer pod life. Heavily sweetened nic salts caramelise the coil faster. If you’re burning through pods quickly, switching to a lower-sweetener e-liquid is the first thing to try.
• Use Eco mode as your default. It extends battery life, extends pod life, and for most nic salt vapers the draw quality is excellent. Boost is there when you need it.

Is the OXVA Unione Worth Buying?

For the right vaper — yes, without hesitation.

If you’re tired of constantly topping up a 2ml pod throughout the day, the Unione is the only device on the UK market that genuinely solves that problem within TPD rules. The 10ml system works exactly as described, the hidden display is a nice practical touch, and at £18.99 the price is fair for what you’re getting.

The battery is slightly smaller than comparable kits at this price point, and it’s strictly an MTL device — so if you vape in any other style it’s not the right choice. But for everyday nic salt vapers who want a more relaxed, less interrupted experience, the OXVA Unione is genuinely one of the most interesting pod kits released in the UK this year.

You can pick one up at Totally Vapour — the OXVA Unione Pod Vape Kit is available now at £16.99 in seven colours. When your pod needs replacing, OXVA Unione Replacement Pods are also in stock.