UWELL CALIBURN G4 POD SYSTEM KIT – 35W (1300mAh)

Design and Build

The Caliburn G4 has dimensions of approximately 114.98 mm x 26 mm x 15.65 mm and weighs just 54.7 grams. It uses a combination of durable aluminum alloy (ADC12), PC, and PCTG materials. The device feels premium and ergonomic in hand, with smooth, rounded edges and a comfortable grip. Many reviewers note its solid yet lightweight build — heavier than prior G-series models due to the larger battery, but still very portable.

It features a clear juice viewing window on the back, a side-mounted USB-C port (5V/2A fast charging), and a fire button. The front has a distinctive wavy/ridged design around the display. Available in multiple colors like Seashell White, Glacier Blue, Karst Grey, Flamingo Red, Twilight Silver, Gunmetal Grey, Sahara Gold, and Polar Black.

Key Features

• 0.85-inch HD Color Screen: Displays battery level, wattage, puff counter, and dynamic animated themes (including "Storm" and "Waves" modes with visual effects). You can switch to a simple black-and-white mode and adjust brightness. It provides real-time feedback and adds a modern touch.
• Battery: Built-in 1300 mAh (significant upgrade from G3's 900 mAh). Supports fast chargingUwell Caliburn G4 is a compact, feature-packed pod system from Uwell's popular Caliburn lineup, released around early 2025. It emphasizes flavor performance, battery life, and user customization while keeping a sleek, pocket-friendly form factor.

Design and Build

The Caliburn G4 has dimensions of approximately 114.98 mm x 26 mm x 15.65 mm and weighs just 54.7 grams. It uses a combination of durable aluminum alloy (ADC12), PC, and PCTG materials. The device feels premium and ergonomic in hand, with smooth, rounded edges and a comfortable grip. Many reviewers note its solid yet lightweight build — heavier than prior G-series models due to the larger battery, but still very portable.

It features a clear juice viewing window on the back, a side-mounted USB-C port (5V/2A fast charging), and a fire button. The front has a distinctive wavy/ridged design around the display. Available in multiple colors like Seashell White, Glacier Blue, Karst Grey, Flamingo Red, Twilight Silver, Gunmetal Grey, Sahara Gold, and Polar Black.

Key Features

• 0.85-inch HD Color Screen: Displays battery level, wattage, puff counter, and dynamic animated themes (including "Storm" and "Waves" modes with visual effects). You can switch to a simple black-and-white mode and adjust brightness. It provides real-time feedback and adds a modern touch.
• Battery: Built-in 1300 mAh (significant upgrade from G3's 900 mAh). Supports fast charging via USB-C. Real-world performance varies but generally delivers solid all-day use for moderate vapers; heavy users may need a midday top-up.
• Power Output: Adjustable from 5W to 35W. Two main output modes — Storm (stronger, more intense) and Waves (smoother, balanced) — let you tailor the experience.
• Airflow Control: Dual adjustable system with a side slider and pod rotation options for stepless or multi-level control. Supports MTL (mouth-to-lung) to restricted DL (direct-to-lung) draws.
• PRO-FOCS 4.0 Flavor Technology: Uwell claims up to 35% improvement in both cartridge lifespan and flavor satisfaction compared to previous generations. Combined with upgraded Caliburn GPP (or G3-compatible) pods.

Pods and Performance

The G4 uses Caliburn GPP pods (compatible with G3 pods as well) with side-fill design for easy refilling without removing the pod. Standard capacity is 3 mL (2 mL in TPD versions). Available coil resistances include options like 0.4Ω, 0.6Ω, 0.9Ω, and 1.2Ω, supporting a range of vaping styles from tight MTL to more open draws.

Pods feature U² anti-leak technology and deliver strong flavor longevity with good vapor production for a pod system. Draw activation is reliable, with button firing as backup.