Zeltu X3 Pod Kit

The X3 takes 2ml pods with a built-in 0.8 ohm mesh coil, and the clever part is that it accepts two types. Prefilled pods arrive filled with nic salt e-liquid in 10mg or 20mg, ready to click in and vape, which makes the X3 behave like a convenient closed pod system. Refillable pods come empty with the same coil, so you fill them yourself with any 50/50 or lower-VG e-liquid. One device, two ways to use it.

The prefilled route suits people who want zero fuss: pick a flavour, click in the pod, vape, and bin it when it is empty. The line-up runs to around ten flavours across fruit, soda and dessert profiles, and Zeltu designs them to echo recognisable e-liquid brands, so there is a familiar taste in there for most people. Both 10mg and 20mg strengths are offered to suit lighter and heavier nicotine needs.

The refillable route is the more economical and flexible one. A refillable pod lets you run your own nic salt or a shortfill cut to strength, which works out far cheaper per millilitre than buying prefilled pods and opens up the entire 50/50 e-liquid market. The 0.8 ohm mesh coil is a touch lower resistance than many MTL pods, giving a slightly warmer, more flavourful draw while still being firmly mouth-to-lung.

Whichever pod you use, the whole pod is replaced when the coil tires rather than swapping a separate coil. That keeps maintenance simple: no fiddly coil changes, no priming a bare coil, just a fresh pod. Pods are sold separately from the device, so factor that into the running cost when comparing it with all-in-one kits.

The X3 is built for one priority above all: discretion and portability. If the size and visibility of your vape matters to you, whether for a work pocket, a night out or simply not wanting a brick in your jeans, the credit-card form factor is genuinely different from most pod kits. That is the main reason to choose it.

It also suits people who want flexibility between convenience and cost. Buy prefilled pods when you want grab-and-go simplicity, switch to refillable pods when you want to save money or use a favourite e-liquid. Few devices at this price let you have it both ways, and the £6.99 entry cost for the device makes it a low-risk way to try the format.

It is less suited to heavy all-day vapers who do not want to charge often. The 620mAh battery is the compromise for the slim body, and while fast charging softens the blow, a high-capacity kit like the Hyola Pro 8000 or Bloody Bar Crystal 10K will go far longer between charges. If stamina matters more than slimness, those are better picks.

It is also a mouth-to-lung device only, with a fixed draw and no airflow adjustment, aimed at ex-smokers rather than cloud chasers. There is no screen and no settings, so if you like tinkering with wattage and airflow, the X3 will feel basic. For its intended buyer, though, the simplicity and the slim shape are exactly the draw.

There is almost nothing to setting up the X3, which is rather the point of a draw-activated pod kit. Charge it, pick a pod, click it in, and inhale. The only real decision is whether you go prefilled for convenience or refillable to save money and use your own e-liquid, and you can switch between the two at any time.

The one habit worth keeping is giving a fresh refillable pod a couple of minutes to soak before you take the first draw, which stops a dry, harsh hit from a bare mesh coil. The steps below cover it from box to first puff.

The Zeltu X3 knows exactly what it is: the slimmest, most pocketable pod kit it can be, sold cheap, with the flexibility to run prefilled or refillable pods. If you have ever felt a pod kit was too bulky or too obvious, the credit-card shape is the whole pitch, and the fast USB-C charging is a smart answer to the small battery rather than a cure for it.

Where it asks for compromise is stamina and control. Heavy all-day vapers will charge it more often than a chunkier kit, there is no airflow or wattage to play with, and the pods cost extra on top of the £6.99 device. Read it as a discreet, simple, grab-and-go device and it delivers; expect a stamina champion and it will not. The finishes below are cosmetic only, so pick on looks.