Uwell Caliburn G3 Review

The Uwell Caliburn G3 is the device that reset expectations for the entire Caliburn range. Rather than chasing wattage or screens for their own sake, it focused on getting the fundamentals right: a genuinely leak-resistant pod, a clear OLED display, and enough battery to get most vapers comfortably through the day. It is a device that feels considered rather than crowded.

The 900mAh battery is a solid 20 percent increase over the model it replaced, and the switch to an OLED screen brought real-time feedback to a device that previously offered none. Three firing modes, dual fire, auto only, and trigger only, mean the G3 adapts to how you like to vape rather than forcing one style on you.

For anyone who wants a compact, reliable MTL-to-RDTL pod kit without stepping up to the touchscreen and higher wattage of the Pro models, the Caliburn G3 remains one of the most dependable choices in its class.

Overview

The Caliburn G3 sits at the heart of Uwell's most successful pod lineage, and it earns that position by refining rather than reinventing. Compared to the G2 before it, the G3 brought a meaningfully larger battery, a proper OLED display, and a new generation of leak-resistant pods, while keeping the compact, pocket-friendly form factor the series is known for.

We have carried the Caliburn G3 daily at Ninja Vapes, running it across nic salts and freebase liquids on both the 0.6ohm and 0.9ohm pods included in the box. Here is our full breakdown of where it excels, and the handful of trade-offs worth knowing before you buy.

What Is in the Box

• 1 x Uwell Caliburn G3 device
• 1 x 0.6ohm Caliburn G3 pod
• 1 x 0.9ohm Caliburn G3 pod
• 1 x USB-C charging cable
• User manual and warranty card

The two included pods cover a sensible spread from a looser RDTL draw down to a tighter MTL pull, giving most vapers everything they need straight out of the box. A 1.2ohm pod is also available separately for those who want an even tighter, more cigarette-like draw.

Build and Design

The Caliburn G3 is built from aluminium alloy and measures a compact 115.5 x 24 x 13.9mm, weighing in at around 47g. It carries a three-layer body construction for added durability, and the shape has been refined slightly from earlier Caliburn generations to sit more comfortably in the hand during longer sessions.

The headline addition over the previous G2 is the OLED display, the first screen to appear on this tier of the Caliburn G series. It is compact but clear, showing wattage, battery percentage, coil resistance, and puff count at a glance. There are no elaborate menus to dig through, the screen simply keeps you informed while you vape.

Airflow is handled in an unusual and genuinely clever way. Rather than a slider, the Caliburn G3 uses dual airflow built into the pod itself, and reversing the pod switches between a higher-airflow RDTL draw and a tighter, more restricted MTL pull. It is a neat solution that avoids adding extra moving parts to the device body.

Battery Life

The 900mAh internal battery represents a 20 percent capacity increase over the Caliburn G2, and it is enough for most moderate vapers to get through a full day on a single charge, particularly when running the higher-resistance 0.9ohm pod at typical settings. Heavier vapers or those who favour the lower-resistance 0.6ohm pod at higher wattage may need a top-up by the evening.

Charging is handled via USB-C with 2A fast charging support, which brings the device back to a usable charge quickly rather than requiring a long wait. The OLED screen displays battery percentage clearly, so there is never any guesswork about how much charge remains.

Output is adjustable from 5W up to 25W, a modest but sensible range for the MTL and light RDTL styles this device is built around. Three firing modes are available, dual fire, auto only, and trigger only, letting you choose between button activation, draw activation, or both together depending on preference.

Performance

The 0.9ohm pod is the more restrained of the two included options, delivering a smooth, classic MTL draw with clean, consistent flavour that suits nic salts particularly well. The 0.6ohm pod opens things up into looser RDTL territory, with denser vapour production and a slightly warmer draw that works nicely with 50/50 freebase liquids.

Flavour clarity across both pods is a genuine strength of the G3, helped along by Uwell's mesh coil construction and the tightly sealed pod design. There is a noticeable step up in consistency compared to earlier Caliburn generations, particularly toward the end of a pod's lifespan, where flavour tends to hold up better than on many competing devices.

With three firing modes on offer, the G3 gives more flexibility than a typical draw-only pod kit without adding real complexity. Auto only keeps things simple for anyone who prefers a traditional inhale-activated experience, while trigger only suits vapers who want more deliberate control over each puff.

Pod Compatibility

The Caliburn G3 uses dedicated G3 pod cartridges with integrated mesh coils, available in 0.6ohm, 0.9ohm, and 1.2ohm resistances. The coils are built into the pod itself, so replacement means swapping the whole cartridge rather than fitting a separate coil, which keeps things simple at the cost of some long-term running cost compared to devices with replaceable coils.

Pods hold 2.5ml of e-liquid in most markets, a genuine step up from the 2ml capacity common on earlier Caliburn pods, and fill via a side-fill port protected by a spring-loaded, leak-resistant seal. Uwell's U² sealing technology is applied throughout the cartridge, and in daily carry the pods held up well without the leaking issues that can plague some open pod systems.

Both nic salts and freebase e-liquids work well across the resistance range, with the 0.9ohm and 1.2ohm pods suiting nic salts particularly well, and the 0.6ohm option better matched to 50/50 freebase blends at slightly higher wattage.

Ease of Use

The Caliburn G3 is straightforward without feeling stripped back. The OLED screen gives you the information you need without requiring any navigation, and the three firing modes can be set once and largely forgotten. Reversing the pod to switch airflow style is intuitive once you know it is there, though it is worth a mention in the manual that some users may otherwise miss on first use.

Pod changes are quick thanks to the magnetic connection, and the side-fill port makes topping up e-liquid simple without needing to remove the pod fully from the device. Overall the G3 asks very little of the user while still offering more genuine control than a basic single-mode pod kit.

Pros and Cons

What We Liked

• Clear OLED display, a first for this tier of the Caliburn G series
• 900mAh battery, a meaningful 20 percent increase over the previous G2
• Clever reversible-pod dual airflow system switches between MTL and RDTL
• Three firing modes cover button, draw, and combined activation
• U² leak-resistant pod technology holds up well in daily carry
• Strong, consistent flavour across the 0.6ohm and 0.9ohm pods
• Compact aluminium-alloy build with a durable three-layer body
• Fast USB-C charging at 2A

Worth Knowing

• 25W output ceiling is modest next to the Pro model and rival devices
• Integrated coils mean replacing the whole pod rather than just the coil
• OLED screen is functional but basic compared to newer colour displays
• Reversible-pod airflow system takes a moment to learn if not read about first

How It Compares

The Caliburn G3 sits in the everyday MTL and light RDTL corner of the pod kit market. Here is how it stacks up against two related alternatives.

The Caliburn G3 holds its own by offering more firing-mode flexibility than the newer G4, at the cost of a smaller battery and a more basic screen. The Xlim Pro edges ahead on airflow precision, while the G4 offers a sharper display and simpler day-to-day operation for anyone who prefers draw-only activation.

Quick Specifications

Frequently Asked Questions

Q1. Is the Uwell Caliburn G3 good for beginners?

Yes, it is one of the more approachable pod kits on the market. Auto only mode gives you a familiar draw-activated experience with nothing to configure, while the OLED screen keeps you informed without requiring any menu navigation. More experienced vapers can switch to trigger only or dual fire mode if they want more deliberate control.

Q2. What pods are compatible with the Uwell Caliburn G3?

The G3 uses dedicated Caliburn G3 pod cartridges with integrated mesh coils, available in 0.6ohm, 0.9ohm, and 1.2ohm resistances. The kit includes 0.6ohm and 0.9ohm pods as standard, covering RDTL through to MTL vaping styles.

Q3. How long does the Caliburn G3 battery last?

The 900mAh battery comfortably covers a full day of moderate use on the 0.9ohm pod, and slightly less for heavier vapers running the 0.6ohm pod at higher wattage. USB-C charging at 2A brings the device back to a usable level quickly during a short break.

Q4. Can I use nicotine salts in the Uwell Caliburn G3?

Yes, the G3 works well with nic salts, particularly through the 0.9ohm and 1.2ohm pods, which deliver a smoother throat hit at typical nicotine strengths. Freebase e-liquid performs better through the airier 0.6ohm pod at slightly higher wattage.

Q5. How does the dual-airflow pod system work?

Airflow on the Caliburn G3 is built directly into the pod rather than adjusted with a slider on the device. Reversing the pod in its housing switches between a more open RDTL draw and a tighter, more restricted MTL pull, letting you change vaping style without needing a separate airflow control.

Review by

Ninja Vapes Expert Team on Aug 25, 2026

Team Ninja Vapes are UK-based vaping specialists, based in Preston, Lancashire, with over a decade of experience in the vape industry. From first-time starter kits to advanced pod systems, the team personally tests every product they review - evaluating real-world performance, flavour quality, build, and value. Their mission is simple: honest, expert reviews that help vapers across the UK find the right kit, every time.