Innokin Vape Kits & Tanks UK

Why the Endura series became the default MTL vape pen

When Innokin launched the original Endura T18 in 2016, the dominant trend in vaping was towards high-wattage sub-ohm kits. The Endura went the other direction: a slim, cylindrical vape pen with a high-resistance Prism coil, designed specifically for tight mouth-to-lung vaping with standard 50/50 e-liquids. It became popular with people switching from cigarettes because the experience — a tighter draw, a clearer throat hit, a smaller form factor — felt closer to what they were used to.

That original positioning has aged well. When nic salt e-liquids arrived in the UK around 2018-2019, they brought exactly the same requirements: MTL draws, higher nicotine, 50/50 PG/VG e-liquid. The Endura T18E and T20S slotted in without modification. The Prism coil platform, with its high-resistance options (1.5Ω on the T18 series, 0.8Ω on the T20S), handles 20mg nic salt just as well as it handled 18mg freebase.

The brand has since expanded into pod kits and higher-wattage refillable systems — the Coolfire PZPulse and P60 cover that end of the market for retailers who stock the newer range. But the core Endura series remains the reliable, battle-tested option for vapers who want a classic vape pen format with a known coil platform and straightforward operation.

Innokin Endura range at VapeCity

Current Innokin kits and tanks at VapeCity, from entry vape pen to tank system.

All kits use Innokin Prism coil system. Zenith tank requires a 510-connection box mod (not included).

The Endura T18E: the entry-level Innokin choice

The Endura T18E is the current version of the classic T18 vape pen. At £19.99 for the full starter kit (£14.99 for the device only), it includes the T18E battery and the Prism T18E tank loaded with a 1.5Ω coil. The 1300mAh battery handles a full day of moderate MTL vaping in most cases. There is one button for firing and adjusting airflow, and the tank fills from the side by unscrewing the top cap.

The Prism T18E coil at 1.5Ω runs at a fixed 10-15W, which is appropriate for 20mg nic salt or 18mg freebase in a 50/50 blend. You do not adjust the wattage — the T18E does not have variable output. Fill it, fire it, draw. That simplicity is the point. The T18E is a direct analogue of a cigarette in terms of operational complexity: there are no settings to configure, no modes to navigate.

The T18X is the same concept with a shorter tank format designed for travel; the T20S steps up slightly with a 1500mAh battery and a 0.8Ω coil that gives a slightly warmer, less restricted draw. The T18 II is an older model that is still available — it uses the same 1.5Ω Prism T18 coils and is otherwise similar to the T18E. If you are buying new, the T18E is the current recommendation; if you have older T18 coils, the T18 II is the compatible choice.

Innokin kits at VapeCity

Which Innokin kit suits which type of vaper?

The Zenith tank: Innokin for box mod users

The Innokin Zenith is a 510-connection MTL and RDTL tank, retailing at £38.99 at VapeCity. It is designed for vapers who have a box mod and want a more controlled airflow system than the Endura pen gives them. The Zenith uses the Innokin Z coil platform across a wide resistance range: 0.48Ω for restricted DTL, 0.8Ω for loose MTL, 1.2Ω for standard MTL, and 1.6Ω for tight MTL. This flexibility makes it usable across a broader range of wattages (6-32W depending on coil) and e-liquid types.

The Zenith Pro, which takes Plexus Z coils (the 0.5Ω variant is stocked at VapeCity at £38.99), is the higher-performance version with a mesh coil design for improved flavour. The 26mm diameter fits comfortably on most single-cell box mods without overhang. Fill via a top-fill port that seals without leaking when properly closed.

The Zenith is a good pairing for Innokin Coolfire box mods or any third-party 510 mod running at 10-35W. If you are buying it purely for MTL at 20mg nic salt, the 1.2Ω or 1.6Ω coil options give you the tight draw and controlled throat hit that nic salt e-liquids work best with.

Innokin running costs: coils and replacement pods

For Endura T18E and T18 II kits, the Prism T18/T22 Coil 5-pack (£29.99 at VapeCity) covers both tank formats. Each coil typically lasts 10-15 refills, which works out to roughly 2 to 3 weeks depending on how often you vape. The Prism T18E tank holds 2ml of e-liquid. For the Endura T20S, the Prism T20S tank (available at £7.99 as a replacement tank unit) uses the T20S coil format.

For the Zenith tank, Innokin Z Replacement Coils (5-pack) in 0.48Ω, 0.8Ω, 1.2Ω and 1.6Ω options are available separately. These typically last slightly longer than the Prism coil series because the Zenith tank's larger coil surface handles e-liquid more consistently. At the 1.2Ω or 1.6Ω level, a coil used with 50/50 nic salt e-liquid will usually outlast a sub-ohm coil used at high wattage by a considerable margin.

Sweetened e-liquids and dessert profiles shorten coil life on any Prism or Z coil. Running unflavoured or lightly flavoured nic salts extends each coil's life. If coil life is a priority, simpler fruit or menthol profiles are easier on the coils than vanilla custard or cola ice.

Setting up an Innokin Endura T18E for the first time

1. 1

   Charge to full before first use

   The Endura T18E charges via Micro-USB (cable included). Charge to full before first use. The LED indicator on the battery glows white while charging and goes out when fully charged. This takes around 45 to 60 minutes.

2. 2

   Prime the coil before filling

   Unscrew the tank from the battery. Remove the coil from the tank by unscrewing it from the base. Place one or two small drops of e-liquid directly onto the cotton wicking holes on the coil body. This is called priming. Screw the coil back in.

3. 3

   Fill the tank

   The T18E tank fills from the side. Unscrew the top cap slightly to reveal the fill port. Add 50/50 e-liquid until the tank is full (do not overfill — leave a small air pocket). Reseal the top cap. Wait 5 minutes before vaping to allow the wick to saturate fully.

4. 4

   Attach the tank to the battery

   Screw the primed, filled tank onto the T18E battery. Make sure it is tight but do not overtighten. Click the single fire button 5 times rapidly to unlock the device.

5. 5

   Adjust airflow and begin vaping

   The T18E has an adjustable airflow ring at the base of the mouthpiece. Close it down for a tighter, more cigarette-like draw. Open it slightly for a looser feel. Press and hold the fire button while drawing from the mouthpiece. The T18E is button-activated only.

Innokin vs other entry MTL vape brands

The Innokin Endura T18E at £19.99 competes with the Aspire Gotek X3 (£8.99), Geekvape Sonder Q2 (£7.99) and Oxva Xlim Go 2 (£7.99) at the entry level, but they are doing different things. The Endura is a traditional vape pen format with a fixed-output battery and a clearomiser-style tank. The Aspire, Geekvape and Oxva options are pod kits with replaceable pods and (in some cases) automatic draw. The Endura is more familiar to vapers who have used the original T18 or T22 series and want a like-for-like replacement. It is also compatible with standard 50/50 PG/VG e-liquid in a way that some pod systems are more restrictive about.

For vapers who specifically want a pod kit, the newer Innokin options — the Coolfire P60 (3200mAh, 60W, around £21.99) and Coolfire PZPulse (2400mAh, 80W, around £24.99) — compete directly with the Geekvape Wenax Q2, Aspire PockeX and Uwell Caliburn G4 Pro. These are not currently in the VapeCity range, but represent where the Innokin brand has expanded if you are looking for a more modern pod kit format alongside the classic Endura.

The Innokin Zenith tank at £38.99 competes with the Aspire Nautilus 3S and Vaporesso XROS Pro in the MTL tank segment. The Z coil platform's wide resistance range gives it more flexibility than most competitors in this price class. If you want to run the same tank with multiple wattage settings across different coils, the Zenith covers that better than most.