The Uwell Caliburn G4 Mini Kit is a compact, inhale-activated pod system with a 1100mAh battery and automatic output of up to 35W. It uses Uwell's Caliburn GPP cartridge platform and adjustable airflow, giving adult vapers a simple device that can support mouth-to-lung (MTL) or restricted-direct-to-lung (RDTL) vaping depending on the pod fitted.

Key features

• 1100mAh built-in battery
• Up to 35W automatic output
• 2ml 0.6Ω GPP pod included
• Compatible with previous and upgraded Caliburn GPP pods
• PRO-FOCS 4.0 flavour technology
• U² leak-resistant pod construction
• Adjustable airflow
• Inhale activation
• Clear e-liquid viewing window
• USB-C charging

Pod compatibility and e-liquid

The supplied 0.6Ω pod provides a warmer, airier RDTL or loose-MTL draw and is a good match for balanced 50VG/50PG liquid. The device is also compatible with other Caliburn GPP pod resistances, which can change the recommended draw and nicotine strength. Check the resistance printed on the cartridge before filling.

Find replacements on the Uwell Caliburn GPP pods page, browse nic salt e-liquids or compare more refillable pod kits.

Filling and airflow

Use the fill port on the supplied pod, close it securely and leave a new cartridge to absorb e-liquid for several minutes. Airflow can be adjusted with the side control and by changing the orientation of a compatible pod. Uwell's published percentage improvements are laboratory results rather than guaranteed real-world performance.

Simple controls and cartridge care

There is no screen or manual power menu: the G4 Mini reads the pod and manages output automatically. The clear-view window helps you check the e-liquid level without removing the cartridge. Refill before the wick openings become exposed and wipe condensation from the contacts as part of routine maintenance.

U² construction combines ultrasonic welding with a shaped airflow channel to improve leak resistance, but no refillable pod is completely leakproof. Secure the fill port, avoid overfilling and replace a damaged or worn cartridge.

What is included?

• 1 x Uwell Caliburn G4 Mini device
• 1 x 2ml 0.6Ω Caliburn GPP pod
• 1 x User manual

Charging cable: sold separately.