Innokin Adept Zlide Vape Kit

Overview

The Innokin Adept Zlide Vape Kit by Innokin across 6 flavours at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Overview of the Innokin Adept Zlide Vape Kit in Black

The Innokin Adept Zlide Vape Kit in Black is a refillable starter kit from Innokin, a manufacturer that has supplied the UK vape trade since the early 2010s. Rather than a sealed single-use device, it pairs a rechargeable battery body with a refillable Zlide tank, so the ongoing cost is e-liquid and the occasional replacement coil instead of a whole new unit every few days.

That matters more now than it did a few years ago. Single-use vapes have been banned across the UK since June 2025, and the 20mg/ml nicotine ceiling that used to govern disposables still applies to every nicotine e-liquid sold here. A kit such as the Adept Zlide sits squarely in the repeat-use category: you choose the liquid, you choose the strength up to that 20mg/ml limit, and you refill the tank yourself.

The Zlide name points to the tank's slide-open top-fill design. The idea is that you move the top section aside to expose the fill port, so you can refill without unscrewing the tank or hunting for a tiny silicone plug. It is a small design detail, but it is exactly the sort of thing that decides whether a refillable kit feels fiddly or easy once the novelty has worn off.

Key points at a glance:

• Type: refillable vape kit with rechargeable battery body and Zlide tank
• Colour: Black
• Tank capacity: 2ml, which is the maximum UK rules allow for a refillable tank
• E-liquid: sold separately, nicotine capped at 20mg/ml in the UK, in bottles of up to 10ml
• Charging: USB cable, with the battery built into the device
• Coils: replaceable, so the kit keeps working long after the first coil is spent

One honest caveat. Specification sheets for kits like this are revised between production batches, and retailers sometimes copy figures from older listings. Where this guide gives a number, it is either fixed by UK law (the 2ml tank limit and the 20mg/ml nicotine cap) or described as typical for this class of kit. For the exact battery rating and coil resistance, read the printed figures on your own box and on the coil itself.

Performance and vapour delivery

A refillable kit does not have a puff count in the way a disposable does, because the number of puffs depends on how much liquid you load, how strong your draws are and what coil is fitted. A more useful way to think about it is liquid consumption. A 2ml tank holds roughly the same amount of liquid that many older disposables carried, and in everyday use most people empty a tank like this in somewhere between half a day and a couple of days, depending on how often they vape.

The Adept Zlide is designed as an easy-going, low-fuss device rather than a high-output hobby setup. Expect a moderate, steady vapour production that suits people stepping away from cigarettes. If you have only ever used disposables, the most noticeable difference is consistency: because the coil is fed from a tank rather than a small sealed reservoir, the first puff and the last puff of a tank taste and feel much alike, with no sudden fade as the liquid runs low.

Draw style matters. Kits in this category generally lean towards a tighter, cigarette-like pull or a lightly loosened mouth-to-lung draw, and they work best when you take slow, even puffs of two to four seconds rather than short sharp hits. Pulling too hard on a lower-powered coil can cause spitting or a dry, hot taste, so let the device set the pace.

Things that change performance in practice:

• E-liquid thickness: a high-VG, syrupy liquid wicks slowly and can give a dry hit on a small coil, while a 50/50 or higher-PG liquid wicks quickly and suits lower-powered setups
• Coil age: a fresh coil gives the cleanest vapour, and output tapers as the cotton darkens and residue builds
• Battery level: as with any lithium cell, delivery can soften when the battery is nearly flat
• Priming: an unprimed coil gives a burnt taste within a few puffs, which is the single most common cause of disappointment on a first day

In short, think of the Adept Zlide as a dependable daily device. It is built for steady vaping across a working day rather than for chasing big clouds, and it rewards a little patience with priming and draw technique.

Flavour profile and what to fill it with

Because the kit ships without e-liquid, the flavour profile is whatever you pour into the tank. What the hardware contributes is how faithfully that liquid is reproduced. Innokin's tanks are tuned for clean, readable flavour at moderate power, and that is where this kit does its best work: fruit, menthol and dessert profiles all come through with definition when the coil is fresh and properly primed.

The kind of liquid you choose should match the kind of coil in the tank. As a rule of thumb for a kit in this class:

• Tobacco and mild blends: work well and suit people who are switching directly from smoking, particularly with a slightly tighter draw
• Fruit and ice: the most popular choice, offering bright flavour at a fairly low wattage without cooking the liquid
• Menthol and mint: hold their character across the whole tank, which is useful if you vape heavily through the day
• Desserts, custards and bakery flavours: usually thicker and sweeter, so choose a 50/50 blend and expect to replace the coil a little sooner, because sweeteners caramelise on the cotton

If you are moving over from a disposable, you will probably notice that flavour feels sharper and more nuanced, mainly because the coil is not limited by the narrow, fixed power curve of a sealed unit. If anything, the learning curve runs the other way: you may find a very sweet liquid a little heavy and want to move to something fresher.

A few practical flavour tips:

• Rinse the tank with warm water and let it dry fully before changing to a very different flavour, otherwise old notes linger
• Do not mix liquids in the tank, because the blend rarely tastes as good as either bottle on its own
• If a flavour tastes muted after a few days, the coil is usually the cause, not the liquid
• Keep bottles away from direct sunlight and heat, which darken the liquid and dull the taste

For people who like to swap flavours often, a kit is far cheaper than disposables. A 10ml bottle gives you several tanks of one flavour, and you can try a new one without buying a whole new device.

Design, build quality and the Black finish

The Adept Zlide in Black is a discreet-looking device. A matte or satin dark finish hides fingerprints better than a glossy one, and Black is the colour that tends to look newest for longest, because small scuffs from keys and pockets are far less visible than on a light colour. If the device spends its life in a coat pocket or a work bag, that is a genuinely practical reason to pick the darker option.

Innokin has a long record of building sturdy, simple hardware, and the Adept line follows that pattern. The tank is built around a sturdy glass or polycarbonate window so you can see the liquid level at a glance, and the body is shaped to sit comfortably between finger and thumb. The point of the design is that nothing about it is complicated: there is one device, one tank, one coil and one cable.

The Zlide top-fill mechanism deserves a specific mention. A sliding cover has fewer parts to lose than a screw-off cap, and the fill port is large enough to take most standard bottle nozzles. In daily use that means:

• You can refill in the dark or on a train without taking the tank apart
• There is less chance of dropping a small plug down the sink
• The seal can be checked at a glance, because the cover either sits flush or it does not

Things to check when your kit arrives:

• The tank threads onto the battery body smoothly, without grinding
• The coil is firmly seated and the O-rings and silicone seals are present
• The sliding cover moves freely but does not rattle or lift on its own
• The mouthpiece is straight and the finish is even all round

Like any plastic and metal combination, it is not designed to survive hard drops onto concrete, and a tank full of liquid will leak if it is cracked. A small pouch or a pocket of its own is a worthwhile habit. Keep the device upright when not in use, and wipe the contacts between tank and battery now and then with a dry cotton bud, because a smear of liquid there can interrupt the connection and make the device appear to cut out.

Battery life and charging

The Adept Zlide uses an integrated rechargeable battery, which means you charge the whole device through its USB port and do not need to buy or swap separate cells. For a device of this type, that is the sensible design: it removes the risk of mismatched or damaged loose batteries and keeps the user experience closer to a phone than to a hobby gadget.

Exact battery capacity is printed on the packaging and varies by Innokin's production runs, so treat any single number you read online with caution and check your own box. What matters in day-to-day use is endurance, and for a kit in this class a full charge will typically carry a moderate vaper through a working day, with heavier users topping up in the afternoon. Because the coil draws far less power than a high-wattage box mod, the battery does not drain as quickly as the size of the device might suggest.

Charging guidelines that protect the battery and your safety:

• Use the cable supplied, or a good-quality USB cable from a known brand, and plug it into a standard phone-style wall adapter or a computer port
• Do not leave a charging device under a pillow, on a sofa or anywhere that traps heat
• Unplug it when it is full rather than leaving it connected for days at a time
• Never charge a device that is hot, wet, swollen or visibly damaged
• Do not use very high-output fast chargers meant for laptops unless the manual says it is safe

Signs that charging is going wrong include a device that gets noticeably hot, a charging light that flashes in an unexpected pattern, or a battery that drains dramatically quicker than it did when new. If any of these appear, stop using the device and ask the retailer or Innokin for advice.

At the end of its life, do not put the device in your household bin or your ordinary recycling. Lithium batteries can ignite in bin lorries and sorting plants. Take it to a vape-recycling drop-off point: many vape shops take back old devices, and most local household waste recycling centres and larger supermarkets have small electricals and battery recycling bins. The Recycle Your Electricals postcode finder will show your nearest one.

Coil and tank technology

The coil is the heart of any refillable kit, and it is the part that you will replace most often. The Zlide tank takes replaceable coil heads that screw into the base of the tank. Innokin's coils for this family have historically been designed around cotton wicking and low to mid resistance, which gives warm vapour at modest power without needing a high-output battery.

Understanding the basics will save you money:

• Resistance: measured in ohms, lower resistance means more vapour and a warmer hit but quicker battery use, while higher resistance means a tighter draw, cooler vapour and longer battery life
• Mesh versus round wire: mesh coils have a larger surface area and tend to give more even flavour, whereas conventional wire coils are simple and economical
• Cotton wicking: the cotton feeds liquid to the heating element, and when it dries out or darkens, flavour suffers

For the exact coil type and resistance fitted to your kit, check the markings printed on the side of the coil head, because Innokin offers more than one option in this family and the stock coil can differ between kit versions. Always buy replacements that match the markings, and make sure they are made for the Zlide tank, because a coil from a different tank family will not seal properly.

How long does a coil last? There is no fixed figure, since it depends on liquid and habits. As a guide, many users replace the coil every one to three weeks of regular use. Sweet and thick liquids shorten that, while clean menthol or tobacco liquids stretch it. The most reliable sign that a coil is spent is a persistent burnt or flat taste even with fresh liquid and a full battery.

A few ways to extend coil life:

• Always prime a new coil by dripping a few drops directly onto the cotton and leaving the tank to soak for five to ten minutes
• Never fire the device when the tank is almost empty
• Avoid chain vaping, which does not give the cotton time to re-wet between draws
• Match the thickness of your liquid to the coil, using thinner liquids on low-power setups

Because the tank is capped at 2ml in the UK, you will be topping up fairly often. That is a legal feature rather than a flaw, and the Zlide top-fill design is intended to make those refills quick.

Nicotine strength guidance

E-liquid sold in the UK is limited to 20mg/ml of nicotine. That is the same ceiling that used to apply to disposables, and it is the highest strength you will be able to buy for this kit. You do not have to use it. The right strength is the one that stops you wanting a cigarette without making you feel unwell, and for most people that is lower than the maximum.

As a rough guide for a device of this type:

• Heavy smokers (20 or more cigarettes a day): start around 18 to 20mg/ml if you are using a nic salt liquid, which is smoother at high strength, or around 12mg/ml if you are using a standard freebase liquid
• Moderate smokers (10 to 20 a day): 10 to 12mg/ml nic salt, or 6 to 9mg/ml freebase
• Light or social smokers: 5 to 10mg/ml, or lower if you find stronger liquid harsh
• Former smokers stepping down: 3mg/ml or 0mg/ml, with 0mg/ml being nicotine-free

Nic salts and freebase behave differently. Nic salt liquid delivers nicotine faster and feels smoother in the throat at a higher strength, which is why it is popular with former smokers on small, lower-power kits. Freebase is the traditional style and is usually a better match for higher-power, larger-clouds setups. The Adept Zlide is a modest-power device, so both can work, but a nic salt liquid at 10 to 20mg/ml is the more common pairing for people replacing cigarettes.

Warning signs that your strength is too high include headaches, nausea, dizziness, a racing heart, or a throat that feels burned. Signs that it is too low include constant cravings, frequent vaping through the day and a return to cigarettes in stressful moments. Adjust a little at a time and give each change a few days.

Nicotine is addictive. This product is intended for adult smokers and is not for anyone under 18. If you do not currently use nicotine, you should not start. Vapes are not recommended for pregnant women or for people with heart conditions without advice from a doctor. The NHS Stop Smoking services can offer free support if you want to quit nicotine altogether.

Who the Adept Zlide is for, and who should look elsewhere

Every vape kit is a trade-off between simplicity, performance and price, and being clear about who the Adept Zlide suits will save you disappointment.

It is a good fit for:

• Smokers making their first switch who want a straightforward device with no menus, no screens and no settings to learn
• Former disposable users who want to cut their monthly spend now that single-use vapes are off the market
• People who like to change flavours often and prefer a refillable tank to a sealed unit
• Anyone who wants a discreet black device that fits easily in a pocket
• Vapers who value being able to repair or refresh a device with a simple coil swap

It may not be right for:

• Experienced vapers who want adjustable wattage, temperature control or a screen, since this is a simple kit
• People who want large clouds and are looking for a sub-ohm, high-power setup
• Anyone who dislikes the routine of refilling, priming and replacing coils, in which case a pre-filled pod system may suit better
• Non-smokers and anyone under 18, since the product is made for adults who already use nicotine

A useful question to ask yourself is how you feel about maintenance. A refillable kit asks a little more of you than a disposable ever did: you carry a bottle, you fill the tank, and every few weeks you replace a coil. Most people find that after the first week it becomes a thirty-second habit, and they are happy to trade it for lower costs and better flavour. If you know you will not do it, tell yourself the truth now and consider a pod kit with ready-filled cartridges instead.

If you are buying for someone else, remember that UK law prohibits selling vaping products to anyone under 18, and a retailer should ask for proof of age. Buying as a gift for a non-smoker is not advisable.

How to use the kit: first-time setup

Getting the setup right in the first hour avoids most of the problems new users run into. Follow these steps in order.

• Step 1, charge: plug the device in using the supplied cable and let it charge fully before first use. Do not rush this step.
• Step 2, check the parts: unscrew the tank, make sure the coil is seated and the seals are in place, and rinse the tank with warm water if the manual says so. Dry everything with a clean cloth.
• Step 3, prime the coil: put four to six drops of e-liquid directly into the openings in the coil head, where the cotton is exposed, taking care not to flood the central chimney.
• Step 4, fill the tank: slide open the Zlide top cover, tilt the tank slightly and run the e-liquid down the inside wall so you do not trap air. Stop below the maximum line and close the cover until it sits flush.
• Step 5, wait: leave the tank upright for five to ten minutes so the cotton soaks fully. This is the step people skip, and it is the most common cause of a burnt first puff.
• Step 6, start gently: take a few slow, gentle draws without pressing the button hard or pulling aggressively, then settle into your normal rhythm.

Everyday use tips:

• Refill when the level reaches about a third of the window, rather than waiting for it to empty
• Keep the device upright when it is not in use, particularly in a bag
• Wipe the mouthpiece and the base of the tank regularly to keep the device hygienic
• Check the manual for the lock or on/off sequence, because many Innokin devices use a rapid-click combination to switch the unit on and off for pocket safety

When you change coils, switch the device off, unscrew the tank, remove the old coil, fit the new one and prime it exactly as you did the first. Dispose of old coils with your small electricals or at the shop where you bought them, rather than in the household bin, if the retailer or local recycling centre accepts them. Never travel with the tank full if you are flying, because changes in air pressure can push liquid out; empty it before you go.

Troubleshooting common problems

Most problems with refillable kits have simple causes. Work through these before assuming that the device is faulty.

Burnt or harsh taste. This nearly always means the coil is dry or spent. Prime it properly, let it soak, and take gentler puffs. If the taste persists with a fresh coil, you may be using a liquid that is too thick or too sweet for the coil, so try a thinner liquid.

Gurgling or spitting. Liquid can pool in the chimney if the tank is overfilled, or if it has condensed inside. Take a few short puffs while holding the device upright, wipe the mouthpiece, and avoid filling above the maximum line.

Leaking from the base or the air holes. Check that the tank is screwed together tightly, that the O-rings are seated and undamaged, and that the coil is fully tightened. Leaks are also common after flying, driving over hills or leaving a full tank on its side. Wipe the device clean and let it settle before use.

No vapour or the device does not fire. Check the battery level, make sure the tank is screwed on firmly, and clean the contact between tank and battery with a dry cotton bud. If the device has a lock mode, make sure it is switched on.

Weak vapour or flat flavour. The coil is probably nearing the end of its life. Replace it and prime the new one. Also check that the air inlets are not blocked by liquid.

Short battery life. Check whether the coil is a lower resistance than you expect, and whether the device has been exposed to cold, which reduces battery performance temporarily. If the battery drops sharply after a few months of use, it may be reaching the end of its life.

Hot device or an unusual smell while charging. Unplug it immediately, move it away from anything flammable and stop using it. Contact the retailer, and do not attempt to open the device.

If you have tried these steps and the device still does not work, contact the supplier with your order number and a description of the fault. Faulty hardware is covered by your consumer rights, and any fault that appears soon after delivery should be dealt with by the seller.

Value for money

Judging value on a kit like this means looking at the cost over a few months rather than the sticker price on the day. A disposable used to cost a few pounds and lasted a few days. A refillable kit costs more at the till, but the cost per day falls quickly.

A simple way to work it out is to add three things together: the up-front cost of the kit, the cost of the e-liquid you use, and the cost of replacement coils. For a moderate user, a single 10ml bottle will often last about a week, and a coil will last somewhere between one and three weeks. Even with a new coil every fortnight, the weekly cost is typically a fraction of what you would have spent on cigarettes, and comfortably below what a stream of single-use devices cost before the ban.

Points in favour of the Adept Zlide on value:

• Reusable hardware: the battery body and tank carry on for months, and only the coil is a consumable
• Free choice of liquid: you can buy multipacks and bulk bottles, which brings down the cost per millilitre significantly
• Simple spares: replacement coils are widely stocked in the UK, so you are not tied to a single seller
• Less waste: one device in use for a long time produces much less electronic waste than a pile of used disposables

Points to keep in mind:

• You will need to buy e-liquid separately, and you should include that in your budget
• Coils are an ongoing cost, and buying them in multipacks is cheaper than singles
• A cheap kit that you stop using because it is annoying is poor value, however low the price, so ease of use counts for something

Overall, the Adept Zlide offers sensible value for people who want a plain, dependable device from an established brand. It does not compete on features with higher-priced kits that have screens and adjustable power, and it does not need to. It competes on being cheap to run and easy to keep running, which is exactly what most people switching from smoking or from disposables actually need.

How it compares with other kits

The refillable starter kit market in the UK is crowded, so it helps to see where the Adept Zlide sits. Because specifications vary by version, the comparisons below are about type and approach rather than exact numbers.

Against pre-filled pod kits. Pod systems such as those from Vuse, Elf Bar's refillable range or Oxva use cartridges that snap into place. They are quicker to use, because there is no priming and no coil change, but cartridges are usually more expensive over time and limit your choice of liquid. The Adept Zlide is more hands-on and cheaper to run, while pods are tidier and quicker.

Against other Innokin kits. Innokin makes several lines, from very small pen-style starter devices through to tank kits with larger batteries. Compared with the smaller pen kits, the Adept Zlide generally offers a more substantial battery and a more convenient fill. Compared with Innokin's higher-power devices, it is less flexible but simpler.

Against kits from Vaporesso, Aspire and SMOK. These brands make comparable entry-level tank kits, and several offer adjustable airflow, screens or higher wattage. If you want adjustable settings, one of those may suit you better. If you want something you can use straight away with nothing to adjust, the Adept Zlide's simplicity is the argument for it.

Against disposable-style refillable devices. Some refillable pods mimic the look of disposables. They are pocket-friendly but usually have small batteries, whereas a tank kit gives you more capacity and easier coil replacement.

A fair summary:

• Choose the Adept Zlide if you value simplicity, a discreet design and low running costs
• Choose a pod system if you want the easiest possible routine and do not mind paying more per millilitre
• Choose a higher-powered kit if you want to adjust the airflow and power and enjoy tinkering

None of these choices is wrong, and the right one depends on how you vape. If you are unsure, start with the simplest device and upgrade later. Many people end up keeping a kit like this as a dependable backup even after they buy something more advanced.