The Complete Guide to E-Cigarettes, E-Liquids & Kits in the UK

• Every e-cigarette is the same five parts: a battery, a coil, a pod or tank, a mouthpiece and a chipset. The difference between kits is how much power they put through the coil and how much fuss they ask of you.
• Most people should start with a refillable pod kit. Small, cheap to run, built for nic salts, and there’s very little to learn. Browse the pod kit range or read our best pod kits for beginners guide.
• Match the e-liquid to the kit. 50/50 liquids and nic salts for pods and mouth-to-lung tanks; 70/30 shortfills at 3mg to 6mg for sub-ohm tanks and box mods.
• Nicotine strength is the thing most beginners get wrong. A heavy smoker who buys 3mg in a pod kit will usually find it far too weak. 10mg to 20mg nic salt is the usual landing spot for pod users.
• Disposable vapes were banned in the UK from 1 June 2025. Prefilled pod kits and big-puff kits are the legal, rechargeable replacements, and they cost less over a month.

How an e-cigarette actually works

An e-cigarette heats liquid into vapour instead of burning tobacco into smoke. There’s no combustion, no tar and no carbon monoxide, which is the reason UK health bodies keep pointing adult smokers towards vaping as a way off cigarettes. Every device on the market, from a pen-sized pod to a 200W box mod, is built from the same five parts.

1. 1
   Battery. Powers everything. Most pod and starter kits have a built-in rechargeable cell measured in mAh; bigger mods take removable 18650 or 21700 batteries you charge separately.
2. 2
   Coil. A small heating element of resistance wire or mesh wrapped in cotton. It soaks up liquid and turns it into vapour when the battery fires. Coils wear out and are the one part you’ll replace regularly.
3. 3
   Pod or tank. Holds the e-liquid. Refillable pods and tanks take any bottle you choose; prefilled pods arrive full and get swapped when they run dry.
4. 4
   Mouthpiece. The vapour travels through it on the way to you. Narrow mouthpieces give a tight cigarette-like draw; wide ones give an airy lung hit.
5. 5
   Chipset. Regulates power, protects against short circuits and overcharging, and on adjustable kits lets you set the wattage. Even simple pod kits have one now.

Three vaping styles and why they decide your kit

Before you compare devices, work out how you want to inhale. It decides the coil resistance, the e-liquid ratio and the nicotine strength you should buy, and it’s the reason a kit that suits one person is wrong for another.

If you’re not sure which you are, our guide to choosing a vape by inhalation style walks through it with examples. Most new vapers are MTL and should shop accordingly.

Types of vape kits in the UK

Vape kits fall into a handful of families. The names overlap on retail sites, so here’s what each one actually means and who it’s for.

Pod kits are the compact refillable systems that dominate the UK market. Two-piece design, a magnetic or push-fit pod, a small built-in battery and a draw that copies a cigarette. The Vaporesso XROS 4 Mini is the one we recommend most: 1000mAh battery, 2ml pods, and with a 0.8Ω or 1.2Ω pod fitted it runs happily on any 10ml nic salt. Our best vape kits in the UK round-up ranks the current field.

Starter kits are complete packages: the device, a tank or pod, spare coils, a charging cable and sometimes a bottle of liquid. The Innokin Endura S1 is the classic example, a pen-shaped refillable pod that is inhale activated, with nothing to adjust. Browse the starter kit category, or read our top 10 vape starter kits and, if money is the deciding factor, the cheap e-cigarette starter kits guide.

All-in-one devices build the tank into the body so there’s nothing to screw together or lose. They tend to be slim, pocketable and leak-resistant, and they’re a good pick for anyone who found tanks fiddly. We cover the best of them in all-in-one e-cigarette kits.

Sub-ohm kits and box mods are for direct-lung vaping. Sub-ohm coils sit below 1Ω, and direct-lung coils are usually below 0.4Ω; they draw more current and make far more vapour, which is why these kits carry bigger batteries and thicker liquid. A regulated mod like the Geekvape Aegis X 200W takes two removable cells, adjusts wattage and temperature, and pairs with whichever tank you choose. Everything in this bracket lives in the mods category.

Prefilled pod kits replaced disposables. Since the ban on 1 June 2025 you can no longer buy a single-use vape in the UK, so brands like Lost Mary, Elf Bar, Hayati and IVG now sell a rechargeable battery with snap-in prefilled pods at 20mg. Same flavours, same convenience, a fraction of the waste and the cost. The prefilled pod kit category has the full range.

Understanding e-liquid: PG, VG and ratios

E-liquid is four things: propylene glycol (PG), vegetable glycerine (VG), food-grade flavourings and, optionally, nicotine. Both PG and VG are common in food and medicines; the ratio between them is what changes how a liquid vapes.

PG is thin and carries flavour and throat hit, and wicks easily through small coils. VG is thick and slightly sweet: dense vapour, softer throat hit, but it needs a bigger coil to wick. Put a 70VG liquid in a pod kit and you’ll get burnt coils; put 50/50 in a sub-ohm tank and it will leak and taste harsh.

In the UK, liquid that contains nicotine can only be sold in 10ml bottles at up to 20mg/ml. Anything bigger is a shortfill: a 50ml, 100ml or larger bottle of nicotine-free liquid with space left at the top for nic shots. Shortfills are the cheap way to vape at 3mg to 6mg in a sub-ohm kit; 10ml bottles are the only way to get salt-level strengths for a refillable pod.

Nicotine strength and freebase vs salts

Nicotine in UK e-liquid runs from 0mg up to the legal maximum of 20mg/ml, and it comes in two forms.

A rough rule for anyone switching from cigarettes: fewer than 10 a day, start with 5mg to 10mg salt; 10 to 20 a day, 10mg to 15mg; more than a pack, 20mg. If you cough or feel light-headed, drop a step; if you keep reaching for the device every few minutes, go up. Our how much nicotine should I vape guide goes into more depth, and best vape kits for ex-smokers pairs strengths with devices.

Finding a flavour you’ll stick with

Flavour is what keeps people off cigarettes, so it’s worth trying a few 10ml bottles before you settle. The UK range groups into five families.

Fruit is the biggest category by a distance: strawberry, mango, blueberry, blue raspberry and the iced versions of each. If you liked a fruit disposable, there’s a nic salt that matches it. Menthol and ice flavours give a clean cold hit and suit ex-menthol smokers; they range from a gentle cool to a full blast. Dessert liquids like vanilla custard, caramel and doughnut are richer and usually vaped at lower strengths in a sub-ohm kit, where the sweetness has room. Drink flavours, cola, lemonade and energy drink, are fizzy and sharp and popular in pods. Tobacco liquids don’t taste like a cigarette but give a dry, nutty base that some ex-smokers prefer to sweet fruit.

Kingston, 88Vape and Hangsen cover the value end; Elux, Hayati, IVG and Lost Mary make the nic salts that copy big-puff flavours. Start with three or four different 10mls rather than one 100ml of something you’ve never tried.

How to buy the right vape kit

There is no single best kit, only the best kit for the way you’ll use it. Run through these five questions and the shortlist writes itself. For a longer version, read how to choose the right vape kit.

1. 1
   Be honest about your experience. Completely new or coming off disposables: a refillable pod kit or a prefilled pod kit. Been vaping a while and want more flavour: an RDL pod or an AIO. Know your ohms and wattage: a sub-ohm kit or a mod.
2. 2
   Pick the inhale style first, then the kit. MTL for a cigarette-like draw with nic salts; DL for clouds with 3mg shortfills. A kit built for the wrong style will be a disappointment whatever it costs.
3. 3
   Match battery to your day. A 500mAh to 700mAh pod lasts a light vaper a day; a heavy vaper on the move wants 1000mAh or more, or a second device. Sub-ohm users should look at removable 18650 or 21700 cells.
4. 4
   Count the running costs, not the box price. Coils or pods every one to two weeks and liquid every few days add up to more than the device over a year. Pod kits with cheap, widely stocked replacement coils win here. The Vaping Products Duty from 1 October 2026 adds £2.20 per 10ml plus VAT to every bottle, which makes a frugal kit more valuable, not less.
5. 5
   Check compatibility before you order. Make sure the coils, pods and liquid you plan to buy fit the kit you’ve chosen, and that the charger is a standard USB-C. Buy from an authorised UK retailer so the product is genuine and covered by the manufacturer.

UK regulations and safe vaping

Every legal vape product in the UK is notified to the MHRA under the TPD rules: nicotine no stronger than 20mg/ml, nicotine bottles no bigger than 10ml, pods and tanks no bigger than 2ml, child-resistant and tamper-evident packaging, and a health warning on the label. On top of that, disposable vapes have been banned since 1 June 2025, and the Vaping Products Duty arrives on 1 October 2026 (pre-duty stock can be sold until 31 March 2027). The full picture is in our UK vape law and regulations article.

Genuine products matter because of what’s inside the battery. Counterfeit kits and unnotified liquids skip the safety testing regulated products go through, so buy from a UK retailer with a returns address and a phone number.

Day-to-day safety is mostly common sense. Charge with the cable supplied, not a fast-charge phone brick, and never overnight on a bed. Keep liquids and devices away from children and pets. Never use a removable battery with a torn wrap, and carry spare cells in a plastic case, not loose with keys.

Maintenance and fixing the common faults

A pod kit needs about a minute of care a week: wipe the outside, dry the pod contacts with a cotton bud, clear condensation from the airflow, and keep the charging port free of pocket fluff. Recharge before the battery hits empty rather than after, and keep the device out of hot cars and direct sun.

Replace the coil when flavour fades, vapour drops, the pod gurgles or it starts to leak; for most people that’s every one to two weeks, sooner on sweet dessert liquids. When you fit a new coil or pod, add liquid and wait five minutes before the first puff so the cotton is fully soaked.

Weak flavour is almost always an old coil, a low battery or a near-empty pod. A burnt taste means dry cotton: the coil is worn out, the pod ran dry, or the wattage is set above the coil’s range. A device that won’t charge is usually the cable or a dirty port; try another cable before you assume the kit is dead. Leaking comes from overfilling, a fill port left open, worn pod seals or a coil that isn’t seated.

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