GeekVape H45 Classic Vape Kit Grey

Overview

The GeekVape H45 Classic Vape Kit Grey by Geekvape in Grey at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

GeekVape H45 Classic Vape Kit overview

The GeekVape H45 Classic Vape Kit is a refillable pod-mod style starter kit from Geekvape, a Shenzhen manufacturer that has built its reputation on hardware designed to survive being dropped, pocketed and carried around every day. Where a single-use device is built to be thrown away after a few days, a kit like this is built to be refilled, recoiled and kept for months. If you are moving away from disposables, or from an older device that no longer holds a charge, it sits in the middle ground between a basic pen-style starter and a full adjustable-wattage box mod.

The H45 name is generally read as a reference to the 45-watt output ceiling of the platform. That puts it well above entry-level pod systems that stop at 10 to 15 watts, and it is the main reason the kit appeals to people who found simpler devices underpowered. A higher ceiling does not mean you have to vape hard. It means the device has room to fire a mesh coil properly, to recover quickly between puffs, and to let you dial the output down to a gentle level once you have found your preference.

Here is what the kit is, in plain terms:

• Format: a compact, refillable pod device with a built-in rechargeable battery, charged over USB-C.
• Output: adjustable power with a ceiling of around 45 watts, so it can be tuned from gentle mouth-to-lung vaping up to a looser restricted-lung draw.
• Coils: replaceable coil heads, so a worn coil is a small, cheap swap rather than a reason to bin the whole device.
• E-liquid: you supply your own, in a 10ml bottle at a nicotine strength of your choice up to the UK legal limit of 20mg/ml.
• Variants: the product family lists seven variants, which on hardware like this are normally colour and finish options rather than flavours.

It is worth being clear about the legal background, because it shapes the whole category. In the UK, nicotine e-liquid is capped at 20mg/ml, refillable tanks and pods are limited to 2ml, and bottles of nicotine e-liquid are limited to 10ml. Single-use disposable vapes have been banned from sale since June 2025, which is a large part of why reusable kits have become the default route for adults who want to carry on vaping. Vaping is not risk-free and nicotine is addictive. This product is for adult smokers and existing vapers only, and it must not be sold to anyone under 18.

The rest of this guide covers performance, flavour, build, battery, coils, nicotine strength, who the kit suits, setup, troubleshooting, value and how it compares with rivals, so you can decide whether it fits before you buy.

Performance and vapour delivery

The performance story of the H45 Classic is about control rather than raw power. Because the output is adjustable, the same device can behave like a gentle mouth-to-lung kit at one setting and a looser, warmer restricted-lung kit at another. What you get depends far more on the coil you fit and the airflow you choose than on the headline wattage figure.

A few realities to set expectations:

• Ramp-up: at the higher end of the power range the coil reaches vaping temperature quickly, so there is little delay between pressing the fire button and the first hit of vapour. At low power the pause is slightly longer, which is normal.
• Throat hit: lower wattage with a tighter airflow gives a firmer throat hit, which is what many ex-smokers look for. Raising the power and opening the airflow softens it and increases vapour volume.
• Vapour volume: this is a pod kit, not a sub-ohm cloud device. Volume is noticeably higher than a sub-15-watt starter pen, but it will not match a dedicated high-wattage tank on a box mod.
• Consistency: a regulated chip keeps output steady as the battery drains, so the last third of a charge feels much like the first, until the device cuts out at low voltage.

A note on puff counts. Disposable vapes were sold on puff numbers such as 600 or 3,500, but a refillable kit has no fixed puff count. What matters is how much e-liquid you burn and how long the battery lasts. As a working estimate, a 2ml pod fill gives somewhere between 200 and 500 puffs, depending on your wattage, puff length and whether you use thick or thin liquid. Lower power and shorter puffs stretch a fill further. Because the pod is refilled in seconds, the figure is mostly useful for working out how often you will top up, which for most people is two to four times a day.

For a starting point, treat the printed wattage range on the coil head as the authority. Begin around the bottom third of that range, take a few puffs, and move up in small steps until the flavour is full without tasting hot or dry. Most people settle somewhere in the middle of the range rather than at the maximum. Running a coil at its top limit all the time shortens its life, makes the liquid disappear faster and often adds a harsh edge to the vapour.

If you vape nicotine salts, remember that power and nicotine delivery rise together. A 20mg salt at high wattage can be overwhelming, which is covered in the nicotine strength section below.

Flavour profile and e-liquid pairing

The kit itself has no flavour. It ships without e-liquid, and the seven variants in the family are best understood as finishes, not tastes. What the hardware does control is how well it renders whatever you put in it, and that comes down to the coil, the wattage and the airflow.

With a mesh-type coil, which is the style this class of kit is built around, the heating surface is wide and even. That tends to deliver a clean, defined flavour with less of the muddy, cooked edge that older round-wire coils can produce. In practice you can expect good results from these styles of e-liquid:

• Menthol and mint: crisp and cooling, and forgiving across the whole power range. A sensible first bottle for anyone switching from cigarettes.
• Blue raspberry and blueberry ice: the sweet, sharp fruit profiles that disposables made popular come through clearly at moderate wattage.
• Strawberry ice and mixed berry: bright and juicy at 20 to 30 watts, but sugary liquids can darken the coil faster, so expect to swap coils a little sooner.
• Watermelon and mango: tropical flavours that benefit from a slightly cooler setting, which keeps them fresh rather than cooked.
• Cola and fizzy drink flavours: the sparkle in these is fragile, so keep the wattage low to medium.
• Tobacco: best at the lower end of the range with a tighter draw, where it behaves like a lighter, cleaner cigarette-style hit.
• Vanilla custard and dessert profiles: richer and thicker, so a higher-VG blend at a moderate setting avoids a dry or burnt taste.

Liquid thickness matters. A 50/50 PG/VG blend wicks easily and gives a firmer throat hit, which suits tighter, lower-power vaping. Higher VG blends such as 70/30 give smoother, bigger vapour but can struggle to saturate a coil if the wick holes are small, so give a fresh coil a few extra minutes to soak.

When you change flavours, the old taste can linger in the coil. A strong menthol followed by a delicate fruit is the classic problem. For a light change, empty the pod, rinse it under cool water, dry it fully and refill. For a big change, fit a fresh coil as well. Many vapers keep two pods and dedicate one to mint and one to fruit, which avoids ghosting altogether.

Sweetener content varies a lot between brands. If a flavour starts to taste muted after only a few days, the usual cause is residue on the coil, not a fault in the device.

Design, build quality and ergonomics

Geekvape built its name on rugged hardware, and the H45 family follows that approach. The brand's Aegis range popularised shockproof, dustproof and splash-resistant devices with metal-alloy bodies and rubberised or textured panels. The H45 Classic is positioned within that tradition, although you should check the product images and specification table for the exact protection rating and materials on the variant you choose, because finishes differ.

Features you can reasonably expect from a device of this type, and should confirm on the listing, include:

• Compact body: small enough for a jacket pocket or the front pocket of jeans, and held comfortably in one hand.
• Fire button and indicator: a single button to fire and adjust, with an indicator light or small screen showing power and battery state.
• Pod fitting: a secure push-in or magnetic connection, so the pod does not rattle loose in a pocket.
• Filling method: a sealed fill port that takes a standard 10ml bottle nozzle without needing to disassemble the pod.
• Adjustable airflow: a slider or ring that changes the draw from tight to open.
• USB-C port: reversible, widely available cables, and no proprietary charger to lose.

The word Classic in the name suggests a conventional layout rather than a radical redesign, and that is a practical advantage. Controls are simple, the pod comes out in one motion, and there are few moving parts to fail. It is a design aimed at people who want the thing to work reliably rather than to impress anyone.

As with any pod kit, the weak points are the ones you can see. The pod and mouthpiece are plastic and can crack if they are stepped on, the fill port seal can wear over months, and the contacts between pod and body need to stay clean. A drop onto pavement from pocket height is something a device in this family is built to shrug off, but it is wise to inspect the pod for hairline cracks afterwards, because a cracked pod leaks even when the body is fine.

Day to day ergonomics are largely about the airflow and the mouthpiece shape. A slightly wider drip-tip style mouthpiece suits a looser draw, while a narrower one suits mouth-to-lung vaping. If the mouthpiece feels too hot at higher power, lower the wattage, as comfort at the lips is a reasonable signal that the coil is being pushed harder than your liquid needs.

Battery life and charging

Kits in this class commonly carry a built-in rechargeable cell in the region of 1,400mAh. That is a sensible size: large enough to last most of a day for a moderate vaper, small enough to keep the body pocketable. Check the specification table on the listing for the exact figure on the variant you are buying.

Here is a simple way to estimate real-world runtime rather than relying on a marketing claim. A 1,400mAh lithium cell at a nominal 3.7 volts holds roughly 5.2 watt-hours of energy. At 25 watts, that is about 12 minutes of total firing time before efficiency losses, or roughly 10 minutes in practice. If your average puff lasts three seconds, that works out to somewhere around 200 puffs per charge. Drop to 15 watts and the same battery yields closer to 350 puffs. Push up toward 40 watts and you may only see 100 or so.

That arithmetic is the honest reason power settings matter. A moderate vaper using a few hundred puffs a day at modest wattage will usually get through a day on one charge, while a heavy user at high power will want to top up midday or carry a spare charging cable.

Charging guidance:

• Time: expect roughly an hour to an hour and a half from empty to full over USB-C, depending on the charger and the charge rate the device accepts.
• Charger: use a decent 5V phone-style adapter or a computer USB port. A modern USB-C fast charger will negotiate down to a safe level for a device like this, but cheap, unbranded adapters are not worth the risk.
• Cable: if charging becomes slow or the connection is intermittent, swap the cable before blaming the battery.
• Supervision: do not charge under a pillow, in a bag or on soft furnishings, and do not leave it charging unattended overnight as a habit.
• Heat: if the device feels hot during charging, unplug it and let it cool.

The built-in cell will slowly lose capacity over a year or two of daily charging, which is true of every phone and every vape. At the end of life the device is an electrical item containing a lithium battery, and it must not go in household bins or kerbside recycling. Take it to a recycling drop-off point such as a household waste recycling centre, or hand it back to a retailer that offers take-back for vapes and small electricals. Remove the pod and empty any e-liquid first.

Coil and pod technology

The coil is the part that turns e-liquid into vapour, and it is the main thing you will replace over the life of the kit. Devices in the H45 class are designed around replaceable coil heads, typically mesh types, in a range of resistances. Resistance is measured in ohms, and it determines how much power the coil is happy to receive and what kind of draw it suits.

• Higher resistance coils (roughly 0.8 to 1.2 ohm): suited to mouth-to-lung vaping, lower wattage, nicotine salts and a tighter airflow. They are frugal with liquid and battery.
• Lower resistance coils (roughly 0.4 to 0.6 ohm): suited to a looser, restricted-lung draw at higher wattage with lower-strength freebase nicotine. They produce more vapour and use more liquid.

Always match the wattage to the range printed on the coil head. Running a coil below its minimum gives weak, flat flavour. Running it above its maximum risks a burnt taste and a shortened life.

Mesh versus round wire. A mesh coil is a flat screen of fine metal rather than a spiral of wire. The larger surface area heats more evenly and tends to give fuller flavour and less hot-spotting. The trade-off is that mesh coils can be a little more sensitive to being run dry, so make sure the pod is topped up before it gets low.

Capacity. Refillable pods sold in the UK are limited to 2ml, so ignore any larger capacity figures you may see on overseas listings of related Geekvape devices. A 2ml pod sounds small, but because it takes seconds to refill, it is rarely a practical limit.

Priming a new coil. This step is the single biggest cause of avoidable problems, so do not skip it:

• Drip a few drops of e-liquid directly onto the exposed wicking holes on the side of the coil.
• Fill the pod to just below the maximum line.
• Wait five to ten minutes so the cotton fully saturates.
• Take two or three gentle puffs without firing, then start at a low wattage and work up.

Coil life. Expect one to three weeks from a coil, depending on how much you vape, the wattage you use and how sweet your e-liquid is. Signs a coil is finished include a burnt or flat taste even with a fresh fill, gurgling, reduced vapour and a darkened, crusty look to the wick when you inspect it. Replace the coil rather than trying to push it through, as a worn coil wastes liquid and tastes unpleasant.

Keep spare coil heads in stock. Running out on a Sunday evening is the classic way to end up back on cigarettes.

Nicotine strength guidance for UK vapers

In the UK, nicotine e-liquid is capped at 20mg/ml, which is 2 percent. That limit applies to all retail e-liquid, whether freebase or nicotine salt. Bottles of nicotine e-liquid can be no larger than 10ml, which is why you will see 50ml and 100ml bottles sold as nicotine-free shortfills, with nicotine shots added separately.

The right strength depends on how you smoked, what kind of nicotine you use and how hard you vape. As a general starting point:

• Heavy smokers, around 15 or more cigarettes a day: a 20mg nicotine salt in a high-resistance coil at low wattage is the usual starting point. Nicotine salts are smoother at higher strengths and absorb quickly, which helps manage cravings.
• Moderate smokers, around 5 to 15 a day: 10mg to 12mg nicotine salt, or 6mg to 12mg freebase at modest wattage.
• Light smokers or social smokers: 5mg to 10mg salt, or 3mg to 6mg freebase.
• Former disposable users: most single-use devices were sold at 20mg salt strength before the ban. If that is what you were used to, start at 20mg in a tight draw, or try 10mg to 12mg if you found the old devices harsh.

Salt versus freebase. Nicotine salts are smooth at high strengths and work best at low to moderate power. Freebase nicotine is harsher at the same strength, so it is normally used at lower strengths, typically 3mg to 12mg, and suits higher-wattage, looser-draw vaping. If you set the H45 Classic to a high wattage and fill it with 20mg salt, you will get a heavy dose of nicotine in each puff and may feel dizzy, nauseous or jittery. If that happens, reduce the strength or the power.

A practical rule is to aim for the lowest strength that stops you reaching for a cigarette. If you find yourself chain-vaping or refilling constantly, the strength may be too low for the draw style. If you feel lightheaded or your throat is raw, it may be too high. Adjust in small steps and give each change a few days before deciding.

Over time, many vapers step down gradually. There is no obligation to, but the flexibility of a refillable kit makes it easy, since moving from a 20mg bottle to a 10mg bottle is a small purchase rather than a new device.

This is general guidance, not medical advice. Nicotine is addictive and non-smokers should not start. If you want to quit smoking or reduce nicotine altogether, your local NHS stop smoking service or a pharmacist can give personalised support.

Who the H45 Classic suits, and who should skip it

No single device suits everyone. The H45 Classic has a clear profile, and it is worth deciding honestly whether you fit it.

It is a good fit if you:

• Are an adult smoker switching to vaping and want something more capable than a basic starter pen.
• Used disposables and want to move to a refillable device now that single-use models are off the shelves.
• Want adjustable power so you can tune the draw and see what you prefer, instead of living with one fixed output.
• Value durability. If your devices usually end up dropped, scratched or rattling around a work bag, a ruggedised design is a practical advantage.
• Like the idea of cheap, replaceable consumables and refilling from bottles rather than buying a new device every week.
• Want a single kit that can handle both a tighter mouth-to-lung style and a looser draw as your preferences develop.

You may want to look elsewhere if you:

• Want zero maintenance. A refillable kit needs priming, filling, occasional cleaning and coil changes. If you want to pick a device up and throw it away, this is not that.
• Prefer the slimmest possible profile. A kit with a 45-watt ceiling and a reasonable battery has to be a certain size, and thin lipstick-style pod devices will be easier to hide.
• Want large, sub-ohm clouds. Output at this level produces satisfying vapour but not the volume of a dedicated high-power mod.
• Need a battery that lasts for several days. Any compact device will need charging daily if you vape steadily.
• Are uncomfortable with e-liquid. Filling a pod carries a small risk of spills, and you will occasionally wipe your fingers.
• Are on a very tight budget and need the cheapest possible entry. Simpler pod kits cost less upfront, though they come with less control.

The kit is also not for anyone under 18, and it is not for non-smokers. Vaping is meant as an alternative for adults who already smoke or vape, not a hobby to take up. Pregnant women, people with heart conditions and anyone with doubts about using nicotine should speak to a doctor or pharmacist first.

How to set up and use the kit

Setting up a refillable kit for the first time takes about fifteen minutes, most of it waiting. The sequence below avoids the usual first-day problems.

• Unbox and check. Confirm you have the device, the pod and coil, a USB-C cable and the manual. Check the contents against the listing and keep the packaging until you are happy.
• Charge first. Plug the device into a standard 5V charger and top up the battery fully before first use. This also gives the coil time to soak later on.
• Prepare the coil. Drip a few drops of e-liquid onto the wicking holes of the new coil head, as described in the coil section above.
• Fill the pod. Open the fill port, aim the bottle nozzle at the side of the opening to avoid flooding the central air tube, and fill to just under the max line. Close the port firmly.
• Wait. Leave the pod to stand for five to ten minutes. Be patient, because a dry hit on a fresh coil can ruin it on day one.
• Insert the pod. Push it into the device until it seats securely.
• Power on. Many Geekvape devices switch on and off with five rapid presses of the fire button, but check the manual for your version.
• Set the power. Start at the bottom third of the coil's printed range.
• Take the first puffs gently. Draw slowly and evenly, then increase power in small steps until the taste is full without being hot.

Everyday use. Refill the pod when it is about a third full, not when it is dry. Always fire in slow, steady draws of two to four seconds. Rapid chain-puffing starves the wick and shortens coil life. Between puffs, rest for around thirty seconds when you can.

Cleaning. Every week or so, wipe the contact points on the pod and the device with a dry cotton bud. If e-liquid has crept into the airflow channel, tissue it clean. Do not submerge the device unless the listing states a water-resistance rating that allows it, and even then, rinsing the pod alone is safer.

Storage and carrying. Switch the device off or lock it before putting it in a bag. Avoid leaving it in a hot car or in direct sunlight, as heat expands the liquid and causes leaks, and extreme temperatures stress the battery. Keep e-liquid and the device away from children and pets. Nicotine e-liquid is poisonous if swallowed, and spare bottles should be kept in a high cupboard.

Troubleshooting common problems

Most problems with pod kits have simple causes. Work through these in order before assuming the device is faulty.

• The device will not turn on or fire. Check the battery by plugging it in. If the indicator does not respond, try a different cable and charger. Confirm the pod is fully seated and the contacts are clean and dry. If the manual describes a lock mode, make sure it is not enabled.
• Dry or burnt taste on a new coil. The coil was almost certainly not primed enough. Let it soak longer, lower the wattage and take gentler puffs. If the taste persists after a few fills, the coil may have been damaged and should be replaced.
• Dry or burnt taste on an older coil. The coil is worn out, or you are vaping sweet liquid at high power. Replace the coil and consider lowering the wattage.
• Gurgling or spitting. This is caused by excess liquid in the airflow path or by a flooded coil. Remove the pod, blow gently through the mouthpiece to clear it, and wipe the base. Avoid overfilling in future.
• Leaking from the pod or from the device. Check the pod for hairline cracks, the fill port seal for correct seating and the coil for proper insertion. Leaks are also caused by pressure changes in flight or in hot environments, and by very thin e-liquid in a wide-wick coil.
• Weak vapour. The liquid may be too thick for the coil, the pod may be nearly empty, the airflow may be set too tight or the coil may be exhausted. Check each in turn.
• Flat flavour. Often a coil that is due to be replaced, or a leftover residue from the previous flavour. Rinse the pod, fit a fresh coil and refill.
• Rapid battery drain. Reduce the wattage, because high settings drain the cell quickly. If the battery is more than a year old and drains abnormally fast, it may be nearing the end of its life.
• Short-circuit or no-atomizer warning. The device is not detecting the coil. Remove the pod, wipe the contacts with a dry cloth and reseat it firmly. If the message persists with a new pod, contact the shop.
• Device or mouthpiece gets hot. Lower the wattage, take longer breaks between puffs, and let the device cool. If it becomes unusually hot while idle or charging, stop using it, unplug it and do not use it again.

Do not attempt to open the device, modify the battery or use anything other than the supplied or a reputable charging cable. If you suspect a fault with the battery or the electronics, contact the shop with your order number and clear photos. Faulty hardware is dealt with under the manufacturer warranty and consumer rights law.

Value for money and running costs

The sticker price of a kit tells only part of the story. The sensible way to judge value is to compare the cost of ownership over a month.

For the H45 Classic, the running costs break down into three items:

• E-liquid: a 10ml bottle of nicotine salt from a UK brand typically costs a few pounds. At 2ml per fill, one bottle gives about five fills. A moderate vaper using three to four fills a day will go through a bottle every day and a half or so, which works out to roughly 20ml a week or around three bottles.
• Coils: a pack of replacement coil heads usually costs less than the price of a single disposable. At one coil every one to three weeks, a pack lasts for months.
• Electricity: negligible. A full charge costs a fraction of a penny.

On a typical weekly spend of a few pounds on e-liquid plus a small allowance for coils, a reusable kit costs substantially less than smoking. A pack of 20 cigarettes in the UK now costs well over £14, so a pack-a-day smoker spends upwards of £100 a week. Even allowing for the initial purchase, most smokers who switch fully recover the cost of the kit within the first week or two.

Compared with disposables, the difference is also significant. A disposable that lasted only a few days was a recurring purchase, while a reusable kit amortises the hardware cost over months. You also avoid the waste and the cost of constantly buying new batteries and plastic. Because disposables are no longer sold in the UK, the real comparison today is with other reusable kits, which is covered in the next section.

Where the H45 Classic offers value is in three areas. First, the durability: a device that survives its first accidental drop avoids a replacement purchase. Second, the adjustability: you are not locked to one nicotine type, flavour or draw. Third, the consumables: coils and e-liquid are widely stocked, and you are not tied to a single brand's proprietary pods.

Where it is less of a bargain is for people who use it lightly. If you vape only occasionally, a cheaper, simpler device achieves the same result. For daily vapers, though, the combination of build quality and low running costs makes it a reasonable purchase. Always compare the current price on this page with what else is on the market, and check whether a bundle with spare coils or e-liquid offers a better overall deal.

How it compares with other pod kits

The pod-kit market is crowded, and the H45 Classic competes with several well-known names. A fair comparison acknowledges that different devices suit different habits.

• Vaporesso XROS series: smaller, lighter and generally lower in output. These are simple to use and well suited to mouth-to-lung vaping at low power, with a minimal learning curve. They tend to be less rugged and less adjustable than a 45-watt kit, so they suit someone who wants something discreet and uncomplicated, but not someone who wants to experiment with power.
• Uwell Caliburn series: compact and straightforward, with a focus on tight mouth-to-lung vaping and nicotine salts. They are a good choice for new vapers, but they offer little headroom if you later want a looser draw.
• OXVA Xlim series: a popular family that covers both mouth-to-lung and restricted-lung vaping, with a wide range of coils. Output and flexibility are similar to the H45 class, so the choice often comes down to ergonomics and which coil range you prefer.
• SMOK Nord series: long established, with a wide range of mesh coils and a strong following. Many Nord models offer more power and bigger batteries, at the cost of a bulkier device.
• Voopoo Vinci and Drag series: more adjustable and generally larger, with higher power ceilings. They are better for people who want more vapour and are comfortable with a chunkier body.

Where the H45 Classic stands out is in combining a durable build with a useful power range at a pocketable size. If your priority is the lightest possible device, the XROS and Caliburn styles will be easier to carry. If you want a larger battery and more power, the Nord and Vinci styles provide it. If you want a balanced device that takes a few knocks, the Geekvape approach is a reasonable middle path.

Compatibility matters too. Geekvape coils and pods generally do not fit other brands, so your choice of device commits you to that brand's consumables. Check that coils for the H45 Classic are in stock and priced fairly before you buy, and consider ordering a couple of spare packs with the kit.

No device is right for everyone, and no comparison here is a substitute for handling a kit yourself. If you are unsure, start by working out whether you need a tighter or looser draw, then pick the device whose output range matches. The H45 Classic is designed for people who want that choice available without needing a large, heavy mod.

Finally, remember that the quality of the experience depends as much on the e-liquid and coil as on the device. A well-made kit with a fresh coil and a good e-liquid will outperform a more expensive device that is badly set up.