Uwell Caliburn G3 Pro Pod Vape Kit

Overview

The Uwell Caliburn G3 Pro Pod Vape Kit by Uwell across 4 flavours at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Uwell Caliburn G3 Pro Pod Vape Kit overview

The Uwell Caliburn G3 Pro Pod Vape Kit is a refillable, rechargeable pod system built for adult smokers and ex-smokers who want something slim, simple and dependable rather than a bulky mod. It belongs to the Caliburn family, a range Uwell has been refining for several years and one that has become a familiar sight in UK vape shops. The G3 generation brought a mesh coil, a more capable battery than the early Caliburn models and USB-C charging, and the Pro version is positioned as a step up from the standard G3 for people who want a little more from the same compact format.

It is worth being clear about what this product is. It is not a disposable. It is a reusable device with a pod that you fill yourself using the e-liquid of your choice, and a coil inside the pod that you replace when the flavour starts to fade. Since single-use disposable vapes were prohibited in Great Britain from 1 June 2025, refillable kits like this have become the main route for adults who want a grab-and-go style of vaping without throwing away a whole device every few days. You buy the kit once, then top up with bottles of e-liquid and swap pods or coils as needed.

The Caliburn G3 Pro is designed around a mouth-to-lung draw, which is the tighter, cigarette-like inhale that most people switching from smoking find comfortable. If you are used to drawing smoke into your mouth first and then into your lungs, this pod style will feel familiar. If you prefer big, open, cloud-heavy vaping, a sub-ohm tank system is a better match, and we say so plainly later in this guide.

In this article we go through the specifications, how the device performs, what the flavour is like with a mesh coil, how well it is built, how long the battery lasts, which nicotine strengths make sense, who should buy it and who should look elsewhere, how to set it up, how to fix common problems, and whether it represents fair value against similar kits from other brands. Where we quote figures such as battery size or pod capacity, treat them as typical for this model and check the packaging or manufacturer information for the exact numbers on the unit you receive, because Uwell and retailers sometimes make small revisions between batches and between markets.

One note on the family: this product page covers five variants in the range, which in practice means different colour finishes of the same device. The internals, pod system and charging behaviour are the same across them, so pick the colour you like and the performance will not change.

Specifications at a glance

Before getting into the detail, here is a summary of the numbers that matter. These are typical figures for the Caliburn G3 series and are offered as a guide. Always check the box for the exact values.

• Device type: refillable pod kit with a rechargeable built-in battery and replaceable pods.
• Battery: built-in lithium-ion cell of around 900mAh, which is a sensible size for a device this slim.
• Charging: USB-C port, with a full charge typically taking somewhere between 60 and 90 minutes from a standard 5V adapter.
• Pod capacity: 2ml in UK-market kits. Uwell sells some international versions with a 2.5ml pod, but UK rules cap refillable tank and pod size at 2ml, so UK stock is built to that limit.
• Coil type: Uwell mesh coil from the UN2 family, commonly offered in about 0.9 ohm for nicotine salts and about 0.6 ohm for a slightly warmer, airier draw.
• Filling method: side-fill port on the pod, which is easier to use than a top-fill design when you are holding a small bottle nozzle.
• Draw style: mouth-to-lung, with a draw that suits cigarette switchers.
• Activation: inhale-activated, so there is no need to hold a fire button during every puff, with button functions for adjusting the device where fitted.
• Nicotine ceiling for e-liquid sold in the UK: 20mg/ml, with refill bottles limited to 10ml.
• What is in the box: the device, a pod, a USB-C charging cable and the instruction leaflet. Contents can vary slightly, so check the listing.

These specifications explain the character of the device. A battery of around 900mAh and a 2ml pod are a good pairing, because the battery is large enough to keep pace with the amount of e-liquid in the pod rather than dying long before you have finished it. A mesh coil in the 0.6 to 0.9 ohm range is a middle path between the very tight, low-power draw of older pod systems and the much looser draw of sub-ohm devices. For many UK vapers that middle path is the sweet spot.

Nothing here is unusual for the category, and that is a point in the kit's favour. Predictable specifications mean predictable behaviour, and pods and coils that are easy to find in shops and online mean you are not tied to a single supplier.

Performance and vapour delivery

The performance of the Caliburn G3 Pro is best described as smooth, steady and unfussy. When you draw on the mouthpiece, the device detects airflow and fires the coil, and within a fraction of a second you get a warm, consistent hit. There is no noticeable lag with a properly primed coil, and the output stays level through the length of a puff rather than peaking and dropping away.

With a 0.9 ohm mesh coil and a nicotine salt e-liquid, the draw is a well-controlled mouth-to-lung inhale. The vapour is moderate in volume, which suits discreet use. You will not produce the dense clouds of a sub-ohm kit, and that is the intention. The aim of a pod system like this is to deliver nicotine and flavour efficiently without a lot of visible vapour. For adults who are trying to replace cigarettes, this efficiency is the point, because the satisfaction comes from the throat feel and the nicotine delivery rather than from vapour volume.

With the lower resistance coil, the draw opens up a little and the vapour becomes slightly warmer and denser. Because the coil draws more power, it also works through battery and e-liquid faster, so expect to charge and refill more often. If you like a looser inhale but do not want to move to a different style of device, the lower resistance option is a reasonable compromise.

Mesh coils matter here. A mesh surface heats a wider area of the cotton than a traditional round wire, so more of the e-liquid is vaporised evenly and less is scorched. That translates to fewer harsh or burnt-tasting hits, a quicker ramp-up to full flavour and a longer period before the coil begins to degrade. It does not make the coil last forever, and no pod coil does, but it does improve consistency.

A few practical points on getting the best out of the performance:

• Pace your draws. Give the coil a few seconds between puffs so the cotton can re-wet. Chain-vaping a small pod is the quickest way to cause dry hits.
• Use thinner e-liquids. Pod systems work best with 50/50 or similar blends that wick quickly. Very thick, high-VG liquids can starve the coil.
• Keep the pod reasonably full. A pod running low on e-liquid is the commonest cause of a harsh or burnt taste.

In everyday use, the Caliburn G3 Pro behaves the way a pod kit should: it fires when you inhale, it does not fire when you do not, and it keeps delivering a consistent hit until the e-liquid or battery runs low.

Flavour profile and what to expect from the mesh coil

The device itself has no flavour, of course, because the taste comes from the e-liquid you choose. What the hardware controls is how faithfully that e-liquid is rendered, and this is where the Caliburn G3 Pro mesh coil performs well. Mesh heats the liquid evenly and at a relatively controlled temperature for the power involved, which helps preserve the character of delicate flavours such as fruit, menthol and subtle dessert notes rather than flattening them or adding a cooked edge.

With fruit flavours, expect clean, recognisable notes with a pleasant crispness. With ice and menthol blends, the cooling comes through clearly without turning sharp. With tobacco and custard or dessert profiles, the warmer settings and lower resistance coil add depth. Because the vapour is on the cooler side relative to higher-wattage devices, sweet flavours tend to stay sweet instead of becoming cloying.

A few things influence the flavour you actually get:

• Coil age. A fresh coil gives the brightest flavour. As the coil ages, the taste gradually dulls and may pick up a slightly toasted note. When that happens, replace the pod or coil rather than turning up the nicotine to compensate.
• Switching flavours. Cotton holds on to residual flavour. If you switch from a strong menthol to a delicate fruit, you may notice some carry-over. Many vapers dedicate one pod to each flavour family, which also makes it easier to track coil life.
• E-liquid composition. Nicotine salts feel smoother at higher strengths and are generally preferred in pod kits. Freebase nicotine is also usable at low strengths, but it can feel harsher on the throat when pushed higher.
• Sweeteners. Heavily sweetened liquids can leave residue on the coil that shortens its life. If you vape a lot of dessert flavours, expect to change coils a bit more often.

Since this kit is refillable, you are free to choose from the very wide range of UK-made and imported e-liquids, including nicotine salt shortfills-with-shots and ready-mixed 10ml nic salts. Check that any bottle you buy states a strength of 20mg/ml or below, which is the legal maximum in the UK. If you want a pointer, start with a flavour you already know you like from a previous device, because it gives you a fair baseline to judge how the mesh coil renders it.

In short, the Caliburn G3 Pro is a transparent delivery system rather than a flavour of its own. It does a good job of showing off whatever you put in it, provided you keep the coil fresh.

Design, ergonomics and build quality

The Caliburn line has always leaned on a simple, rounded rectangular shape that sits comfortably in the hand and slips into a pocket without a bulge. The G3 Pro follows that approach. The body is slim and lightweight, the edges are softened, and the surface finish is designed to resist fingerprints reasonably well. It feels like a considered consumer product rather than a gadget, and it does not scream vape from across the room.

Build quality is solid for the price bracket. The body is made from a hard-wearing material with a coated finish, the pod clicks into place with a firm magnetic or friction fit depending on the revision, and there is no obvious flex or creak when you squeeze it. The mouthpiece is a flat, comfortable shape that is easy on the lips, which matters if you use the device many times a day.

Points that stand out in daily use:

• Pod fit. The pod seats securely and is easy to remove for refilling or replacement. A pod that sits loose is a common cause of leaks and dead connections, so it is a good sign when it clicks home firmly.
• Side-fill port. The fill port is accessible and has a silicone bung that seals when pushed home. Use a bottle with a narrow nozzle and press the bung closed after filling.
• Airflow. The airflow is set for a mouth-to-lung style draw. It is not designed to be opened up into a loose, direct-lung inhale.
• Weight and size. Light enough to forget in a jacket pocket, but with enough heft to feel sturdy.
• Colour range. Five variants in the family give some choice of finish, which is useful if you want to tell your device apart from a friend's.

On the negative side, like most slim pod devices the finish will pick up scuffs if you carry the kit loose with keys or coins. A cheap silicone sleeve or a separate pocket solves that. Also, the pod is a consumable plastic component, so treat it gently and do not over-tighten or force it during insertion.

Compared with the cheapest generic pod kits, the G3 Pro feels noticeably more refined. Compared with the more expensive devices with screens and adjustable wattage, it is simpler and lighter. For someone who wants a device that works without setup, that simplicity is an advantage rather than a limitation.

Battery life and USB-C charging

The built-in battery in the Caliburn G3 Pro is typically around 900mAh. For a pod device of this size, that is a comfortable capacity. In practical terms, most adults who use a device like this at a moderate pace will get through a full day on a charge when using the 0.9 ohm coil, and heavier users may want to top up once in the evening.

Real-world battery life depends on several factors:

• Coil resistance. The lower resistance coil draws more power per puff, so the battery drains faster than with the 0.9 ohm option.
• Puff length and frequency. Long draws use more energy than short ones. If you take ten-second drags, expect shorter battery life.
• Temperature. Lithium-ion cells lose capacity in the cold. A device kept in a pocket on a winter commute will not last as long as one used indoors.
• Battery age. After a few hundred charge cycles, capacity gradually declines. This is normal for any rechargeable device.

Charging is via a USB-C port, which is now the standard connection on phones, tablets and many other devices, so you probably already own a suitable cable and can share chargers. A complete charge from empty typically takes around an hour to an hour and a half. A standard 5V phone charger or a computer USB port is all you need. There is no need for a fast charger, and you should avoid cheap unbranded power bricks of unknown quality.

Some safe-charging habits that are worth following with any vape:

• Charge on a hard, non-flammable surface and not on a bed, sofa or under a pillow.
• Do not leave the device charging unattended for long periods or overnight when you can avoid it.
• If the device becomes unusually hot, swells, or smells odd, stop using it and stop charging it.
• Do not use damaged cables, and do not charge a device that has been dropped hard until you have checked it for damage.
• Keep the device away from coins and keys in a pocket, as metal contact can cause a short circuit.

When the battery eventually reaches the end of its life, do not put the device in the household bin. Lithium-ion batteries can cause fires in bin lorries and recycling plants. In the UK, you can take used vapes and their batteries to a recycling drop-off point, and shops that sell vaping products are generally required to take back used electrical items. Many local council household recycling centres also have small electrical collection banks. Look for the crossed-out wheelie bin symbol on the pack as a reminder that the item is not for general waste.

Coil and pod technology explained

The coil is the heart of any pod vape, and the Caliburn G3 Pro uses a mesh design from the Uwell UN2 family. Instead of a thin round wire wrapped around cotton, a mesh coil uses a flat sheet of fine metal mesh with a large surface area pressed against the cotton. When the battery fires, the mesh warms evenly across that wide surface, turning e-liquid into vapour more efficiently and with less of the hot-spot scorching that older wire coils could produce.

The practical advantages of mesh are straightforward:

• Faster ramp-up. The coil reaches working temperature quickly, so flavour arrives at the start of the draw instead of building slowly.
• Even vaporisation. More of the cotton is used, which improves flavour consistency and reduces the burnt taste that comes from local dry spots.
• Better longevity. A coil that heats more evenly tends to age more gracefully, though the lifespan still depends heavily on your e-liquid and vaping habits.

The pod holds about 2ml in UK-market form and is designed to be refilled from the side. Pods and coils in this system are generally sold together as a replacement cartridge, so when the coil wears out you swap the whole pod rather than unscrewing a separate coil head. That is slightly more wasteful than a replaceable-coil tank, but it is also faster and cleaner, and it removes the risk of fitting a coil incorrectly. If you are curious about compatibility, Uwell has designed pods across the Caliburn G3 family to share a format, but you should confirm that a particular replacement pod is stated as compatible with the G3 Pro before you buy, as older Caliburn generations used different pods.

Typical coil life is somewhere between one and three weeks for an average user, but this varies a great deal. Heavy vapers, very sweet e-liquids and high nicotine strengths all shorten it. Signs that a coil is nearing the end include a muted or burnt flavour, a harsher throat hit, more gurgling, and a reduction in vapour. When you notice these, replace the pod. Continuing to use a worn coil will not damage the device, but it is not pleasant and can taste unpleasant.

To get the most from each coil, prime it properly before the first puff, keep the pod topped up, avoid chain vaping, and do not use e-liquids that are very thick or heavily sweetened if you can avoid them. A little care adds days to each pod, and over a year that makes a noticeable difference to running costs.

Choosing the right nicotine strength

Nicotine strength is the most personal decision you will make with a pod kit, and getting it right makes the difference between a satisfying experience and a frustrating one. In the UK, e-liquid containing nicotine is capped at 20mg/ml, and refill bottles are limited to 10ml. That cap is the same ceiling that applied to disposable vapes before they were prohibited, and it applies to every bottle you can legally buy for the Caliburn G3 Pro.

For a mouth-to-lung pod such as this one, nicotine salts are usually the best match. Salts deliver nicotine smoothly even at higher strengths, so you can get a cigarette-like satisfaction without a harsh throat hit. As a general guide:

• 10mg/ml nicotine salt: a moderate strength suitable for lighter smokers, for people who have already reduced their nicotine intake, or for those who find higher strengths too strong. Also a good choice if you vape frequently throughout the day and prefer a gentler hit.
• 20mg/ml nicotine salt: the strongest legal option and the usual starting point for people switching from a pack-a-day habit. It tends to satisfy cravings quickly and can reduce how often you need to take a puff, although it is noticeably stronger on the throat.
• Freebase 3mg to 6mg: an alternative for those who prefer a traditional e-liquid feel. Freebase is harsher at higher strengths, so it is typically used in low strengths and with larger vapour volumes, which suits sub-ohm devices better than a small pod.
• Nicotine-free (0mg): available for people who vape for the habit and the flavour only, or who are tapering off nicotine altogether.

If you are unsure, a sensible approach is to start at a level that matches your previous smoking habit. Someone who smoked around 20 cigarettes a day will often begin at 20mg/ml, while someone smoking 5 to 10 a day may find 10mg/ml enough. If you find yourself feeling dizzy, nauseous, or with a racing heart after a few puffs, that is a sign the strength is too high, and you should drop down. If you are constantly craving a cigarette and puffing very frequently, the strength may be too low.

Remember that the lower resistance coil delivers more vapour per puff, so with that coil many people choose a slightly lower strength than they would use with the 0.9 ohm option. Vaping is intended for adults who already use nicotine. If you do not smoke or vape, there is no reason to start. Nicotine is addictive, and e-liquid should be kept out of the reach of children and pets. For help to stop smoking altogether, your local NHS stop smoking service offers free support.

Who the Caliburn G3 Pro is for, and who it is not

No single device suits everyone, so here is a straightforward view of who tends to get the most from the Caliburn G3 Pro and who is better served elsewhere.

It is a good fit if you:

• Are an adult smoker or recent ex-smoker looking for a cigarette-like mouth-to-lung experience.
• Want a simple device with minimal setup, no wattage menus and no coil building.
• Value discretion and portability and want something that slips into a pocket or small bag.
• Are moving away from disposable vapes, now that they are prohibited, and want a reusable alternative with a similar convenience level.
• Prefer nicotine salt e-liquids and enjoy fruit, menthol, dessert or tobacco profiles.
• Would like the option to refill with your own choice of e-liquid and keep running costs predictable.

It is probably not for you if you:

• Want big clouds and a loose, airy direct-lung draw. A sub-ohm tank or a larger pod mod is a better match.
• Use very high-VG, thick e-liquids that do not wick well in a small mesh pod.
• Need a device with a large display, precise wattage control or temperature control.
• Would rather not deal with refilling at all. A refillable system needs a little hands-on care compared to a throwaway product.
• Have never smoked or vaped. Vaping is for adults who already use nicotine and want an alternative, not for non-smokers, and it is illegal to sell vaping products to anyone under 18 in the UK.

Where the kit really shines is for people in the middle: those who have tried a basic pod and found it a bit underpowered, but who do not want the complexity of an advanced mod. The G3 Pro keeps the control surface minimal while giving a cleaner, more consistent vape than entry-level options.

If you are buying for the first time, consider picking up a spare pod with your kit so you always have a fresh coil ready. If you are upgrading from an older Caliburn, you will find the G3 Pro familiar in size and operation, with improvements in the coil and charging. Just be aware that older pods are generally not interchangeable with the G3 series, so check before assuming you can reuse a stockpile of replacements.

How to fill, prime and use the kit

Getting started takes a couple of minutes. Follow the steps below the first time and every time you swap a pod, and you will avoid the majority of the problems new users run into.

• Step 1, unpack and check. Take the device and pod out of the packaging. Check for damage and make sure the pod is the one included with your kit. Peel off any protective film from the pod, mouthpiece or contacts.
• Step 2, fill the pod. Pull the pod from the device. Open the silicone bung on the side of the pod, and slowly fill with e-liquid using the nozzle of the bottle, aiming at the side of the fill hole rather than straight down it. Stop just below the maximum line, as overfilling is a leading cause of leaks. Press the bung firmly back in.
• Step 3, let it soak. This step matters. Leave the filled pod standing upright for five to ten minutes so the e-liquid soaks fully into the cotton. Skipping this step is the usual cause of a burnt first puff and a damaged coil.
• Step 4, insert the pod. Push the pod firmly into the device until it seats. Check that it is straight and secure.
• Step 5, prime with a few gentle draws. Take two or three gentle puffs without inhaling into your lungs, to draw e-liquid through the coil and clear any air. Then you are ready to vape normally.
• Step 6, vape. Draw slowly and steadily on the mouthpiece. The device fires automatically when it senses airflow. Aim for three to five second draws at a relaxed pace rather than long, hard pulls.

Check the manual for the exact button functions on your unit, such as switching the device on and off by pressing the button several times in quick succession, because the sequence can differ between revisions. Many pod devices have a lock function that stops accidental firing in a pocket, and it is worth learning it.

Maintenance is minimal. Wipe the mouthpiece and the pod contacts with a dry cloth or cotton bud if they become dirty. Do not rinse the pod under a tap, and do not submerge the device. Store the kit upright where possible, away from heat and direct sunlight, and keep e-liquid bottles tightly closed and out of reach of children and pets.

When the pod is empty or the coil is spent, remove the pod, dispose of it responsibly, and fit a new one. Used pods contain a small amount of residual e-liquid and electronic components, so take them to a suitable recycling point where available rather than putting them in your household bin.

Troubleshooting common problems

Most issues with a pod kit are simple and fixable. Here are the problems vapers report most often with the Caliburn G3 Pro and similar devices, and what to try.

• Burnt or harsh taste. Usually caused by a dry or worn coil. Check that the pod has e-liquid in it, give a freshly filled pod five to ten minutes to soak, and avoid chain vaping. If the taste persists, the coil is probably spent and the pod should be replaced.
• Leaking from the pod or mouthpiece. Common causes are overfilling, a loose pod, an unsealed fill bung, or travelling with a full pod where pressure changes can push liquid out. Fill below the maximum line, press the bung home, make sure the pod seats properly, and store the device upright. Wipe away any residue from the contacts.
• Gurgling or spitting. Condensation in the airflow path is often the cause. Blow gently back through the mouthpiece with the pod removed, or wipe the mouthpiece clean. Very thin e-liquids and overfilled pods can also contribute.
• Device does not fire. Check that it is switched on and charged, that the pod is firmly seated, and that the contacts are clean. If your device has a lock mode, make sure it is not engaged. Try a different pod to rule out a faulty one.
• Flashing indicator light. Flashing lights typically signal low battery, a short circuit, a poor pod connection or an output protection trip. Consult the leaflet for what each flash pattern means on your unit, then recharge, reseat the pod or replace it as indicated.
• Weak vapour or muted flavour. This usually means the coil is ageing or the pod is nearly empty. Try refilling and priming; if that does not help, fit a new pod.
• Battery drains too fast. Check that the device is not firing accidentally in your pocket, and that you are not using a very low resistance coil with long draws. If the battery is very old, capacity will have naturally declined.
• Device will not charge. Try a different USB-C cable and power source, check the port for lint, and clean it gently with a wooden toothpick. If the port is physically damaged, stop using the device and contact the seller.

If a problem persists after you have tried the steps above, contact the retailer and describe the fault clearly, including when it started and what you have already tried. A faulty device within the warranty period can usually be repaired or replaced, which brings us to the practical question of value.

Value for money and how it compares with alternatives

The Caliburn G3 Pro is usually priced in the lower to middle part of the pod kit market in the UK, typically somewhere in the mid-twenties to around thirty pounds, though prices vary between retailers and over time. Check the current price on the product page rather than relying on a figure from an article.

The upfront cost is only part of the picture. A refillable kit has three ongoing costs: e-liquid, replacement pods, and electricity for charging, the last of which is negligible. A 10ml bottle of nicotine salt typically costs a few pounds, and a single bottle fills the 2ml pod around five times. Replacement pods are usually sold in multipacks, and each can last roughly one to three weeks, depending on use. For most people, the running cost of a refillable pod kit is a small fraction of what a pack-a-day smoking habit costs, and it compares favourably with buying disposables, which are no longer legal to sell in the UK anyway.

How does it compare with its rivals? Here is a fair look at some popular alternatives:

• Vaporesso XROS series. A strong competitor with a similar mesh pod approach, comparable battery size and adjustable airflow on some models. Many people find the XROS pods easy to find and the devices well built. If you want adjustable airflow, the XROS is worth a look. The Caliburn is typically simpler and a touch more compact.
• Oxva Xlim series. Also popular, with a slightly different pod design and a good reputation for flavour. Some Xlim models offer more power adjustment, making them appealing if you like to tinker, while the Caliburn leans toward set-and-forget.
• Voopoo Vmate series. Another mesh pod system aimed at the same audience, with a similar size and feature set. The choice often comes down to ergonomics and which pods your local shop stocks.
• SMOK Novo series. A long-established range with a wide pod catalogue. Good if you want a familiar format, though newer Caliburn models are often considered more refined in the coil.
• Other Caliburn models. The standard G3 is a lighter-feature option, and older Caliburn generations are usually cheaper but have older charging ports and different pods. The G3 Pro is the one to choose if you want the more complete version of the current generation.

No single device wins on every measure, and the best kit is the one that suits your own preferences and is easy to keep supplied with pods. The G3 Pro's strengths are its consistent mesh coil, slim body, USB-C charging and straightforward use. Its limitations are the small pod, the mouth-to-lung focus and the non-replaceable coil head.

Warranty and returns matter too. When you buy from a reputable UK retailer, you have statutory rights if the device is faulty, and many sellers offer an additional warranty period on electronic devices. Keep your order confirmation, test the device on arrival, and report any fault promptly. Consumables such as pods and coils are generally not covered once used, since they wear out by design. For a kit at this price point, the combination of reliable build, decent battery and easy-to-find consumables adds up to fair value, particularly for those moving from disposables to something reusable.