Uwell Caliburn G4 Pod Kit

Uwell Caliburn G4 Vape Kit

The Uwell Caliburn G4 pod kit is a compact, versatile refillable pod system built around a 1300mAh battery and a 5-35W output range. It covers both mouth-to-lung (MTL) and restricted direct-to-lung (RDTL) vaping styles, making it a solid choice whether you're switching from cigarettes or looking for a reliable everyday carry.

A 0.85-inch TFT colour screen displays wattage, battery level, and puff count at a glance. The G4 ships with two Caliburn G3 pods in the box, so you can get started straight away. It's available in eight colour finishes including Twilight Silver, Karst Grey, and Glacier Blue.

Uwell Caliburn G4 Key Features

• 1300mAh built-in battery
• 5-35W variable output with Smart Mode
• Two power modes: Waves and Storm
• 0.85-inch TFT colour screen
• Button and draw-activation
• Adjustable airflow slider plus pod rotation
• Compatible with Caliburn G3 and GPP pods
• 2ml top-fill pods with Pro-FOCS technology
• USB-C fast charging

1300mAh Built-In Battery

The Caliburn G4 carries a 1300mAh battery, which is larger than the G3's 900mAh and larger still than the G3 Pro's 1000mAh. Most vapers will find it lasts a full day before needing a charge. The USB-C port supports fast charging and the device can be vaped while plugged in. No USB-C cable is included in the box, so you will need one to hand before using the device for the first time.

5-35W Variable Output with Smart Mode

The G4 operates between 5W and 35W, giving it a wider output range than both the G3 (5-25W) and the G3 Pro (5-35W, matched). Smart Mode selects the wattage automatically based on the pod fitted, which suits vapers who prefer a hands-off setup. If you want more control, you can set a custom wattage manually within the range your pod supports. The OLED display shows your current wattage setting at all times.

Two Power Modes: Waves and Storm

The G4 adds two named power modes that let you shift between different vaping characters without manually adjusting wattage. Waves Mode conserves battery and extends usage time with a softer output, while Storm Mode pushes harder for increased vapour and more prominent flavour. To switch between modes, press the fire button four times quickly, then hold to confirm your selection. This gives MTL and RDTL vapers a quick way to dial in the feel they prefer.

0.85-Inch TFT Colour Screen

The full-colour TFT display shows wattage, resistance, battery level, and puff count. It is noticeably more vivid than the monochrome OLED found on the G3. The screen keeps the interface clear and readable, particularly in the Waves/Storm mode selector. If you're researching the Caliburn G4 review and comparing it with older models, the screen upgrade is one of the most talked-about improvements.

Button and Draw-Activation

The G4 fires both by pressing the side button and by inhaling on the mouthpiece. Draw-activation alone suits casual or discreet use, while the button gives more precise control over each puff. To lock the device and prevent accidental firing, press the button five times in quick succession. Press five times again to unlock. The button is positioned on the side of the device rather than the face, which is worth noting if you're used to earlier Caliburn models.

Adjustable Airflow Slider Plus Pod Rotation

The G4 gives you two ways to adjust how the air flows through the device. The dedicated slider on the side opens and closes the main airflow to shift between a tighter MTL draw and a looser RDTL inhale. Additionally, rotating the pod within the device changes a secondary airflow setting, letting you fine-tune the draw resistance further. Using both controls together gives you a wider range of options than either system alone. This dual airflow setup is one of the G4's more practical selling points for vapers who like to customise their vape.

Compatible with Caliburn G3 and GPP Pods

The G4 accepts pods from both the Caliburn G3 series and the Caliburn GPP series.

Caliburn G3 pods (included in box):

• 0.4Ω - RDTL, 5-25W
• 0.6Ω - RDTL, 5-25W
• 0.8Ω - MTL
• 0.9Ω - MTL, 5-15W
• 1.0Ω - MTL, 5-10W

Caliburn GPP pods:

• 0.4Ω - RDTL, 35W
• 0.6Ω - RDTL, 25W
• 0.9Ω - MTL, 15W
• 1.2Ω - MTL, 13W

2ml Top-Fill Pods with Pro-FOCS Technology

The included Caliburn G3 pods each hold 2ml of e-liquid in line with UK TPD regulations. Filling is done through a top port, which is accessible without removing the pod from the device entirely. Uwell's Pro-FOCS technology adjusts flavour output based on coil resistance and wattage, and the U² ultrasonic welding used in the pod construction improves air-tightness to reduce leaking. Once the coil is spent, you replace the whole pod rather than just the coil. Before your first fill, leave the pod to sit for at least 10 minutes after filling to allow the wick to saturate fully. A 50/50 VG/PG liquid works best with both the G3 and GPP pod ranges.

USB-C Fast Charging

The G4 charges via USB-C at 5V/2A and reaches a full charge from empty in under an hour. The colour screen displays the charging status. As noted above, no cable is included, so you will need to source a USB-C cable separately if you do not already own one. The device supports pass-through vaping, meaning you can use it while it charges.

Uwell Caliburn G4 Colours

• Flamingo Red
• Glacier Blue
• Gunmetal Grey
• Karst Grey
• Polar Black
• Sahara Gold
• Seashell White
• Twilight Silver

What's in the Box

• 1x Uwell Caliburn G4 device
• 1x Caliburn G3 0.4Ω top-fill pod (2ml)
• 1x Caliburn G3 0.9Ω top-fill pod (2ml)
• 1x User manual

A USB-C charging cable is not included and must be purchased separately.