Uwell Caliburn G4 Mini Open Pod Kit Review

The Uwell Caliburn G4 Mini is the latest addition to Uwell’s popular Caliburn series, tailored for users who want a compact, lightweight, and no-fuss vaping experience. As a simplified version of the full-sized G4, the G4 Mini drops the screen and complex UI in favor of portability and ease of use—making it an ideal choice for beginners and minimalist vapers alike.

Overview of Key Specs

• Battery: 1100 mAh
• Output: Max 35 W
• Pod Capacity: 2 mL (TPD) / 3 mL (INTL)
• Coil Resistance: 0.6 Ω included; supports all GPP pods
• Weight: Approx. 46 g
• Material: Polycarbonate (PC) + PCTG
• Airflow: Dual (slider + pod rotation)
• Charging: USB-C, full charge in ~58 minutes

Design & Build Quality

Compact & Lightweight

At just around 46 grams, the G4 Mini is featherlight and fits effortlessly in your hand or pocket. It uses durable PC + PCTG materials, giving it a sleek satin finish that resists fingerprints and adds grip.

Simplified Aesthetics

The device doesn’t include a screen, which adds to its minimal appeal. Instead, a three-color LED indicator discreetly shows battery levels. The juice window is also a helpful touch for quickly checking e-liquid levels.

Pod & Coil System

GPP Pod Compatibility

The G4 Mini comes with a 0.6 Ω Caliburn GPP pod pre-installed and is compatible with the full range of GPP cartridges (including 0.9 Ω). This flexibility allows you to choose between tighter MTL draws or lighter RDL hits.

Pro-FOCS Flavor Tech 4.0

Uwell’s upgraded Pro-FOCS 4.0 technology boosts flavor clarity and improves coil longevity by up to 35%, ensuring each pod delivers consistent, satisfying performance for longer.

Leak-Resistant Construction

Thanks to Uwell’s U² leak-proof design, including ultrasonic welding and U-channel airflow, the G4 Mini handles e-liquid cleanly and efficiently—virtually eliminating leakage complaints.

Airflow & Inhale Activation

Dual Airflow Control

The device features both a slider switch and reversible pod orientation, allowing you to fine-tune the airflow to your preference—whether you enjoy a tight mouth-to-lung (MTL) draw or a looser restricted-direct-lung (RDL) hit.

Seamless Auto-Draw

With auto-draw firing, there’s no need to press any button—just inhale and vape. This makes the G4 Mini especially beginner-friendly and convenient.

Battery Performance & Charging

All-Day Battery

The 1100 mAh battery is impressive for a pod this size and can easily last an entire day of moderate use.

Fast Charging

It supports USB-C fast charging, refilling to full in under an hour (~58 minutes). The LED indicator gives a quick snapshot of remaining charge:

• Green: High
• Blue: Medium
• Red: Low

Flavor & Vaping Experience

The G4 Mini excels in flavor thanks to Pro-FOCS 4.0, delivering richer, more defined taste profiles whether you’re using salt-nic or freebase juices. Community feedback consistently highlights:

• Smooth, consistent hits
• Excellent pod longevity (up to 2+ weeks per pod)
• Minimal spitback or gurgling

This makes it a strong choice for flavor lovers on the go.

Pros & Cons

Pros

• Extremely portable and lightweight
• Excellent flavor performance
• Fast USB-C charging
• Dual airflow adjustability
• Compatible with all GPP pods
• Reliable leak resistance

Cons

• No screen or wattage adjustment
• No button-firing option
• Battery life could fall short for heavy users

How It Compares to G4 Big Brother

Verdict: Choose the Mini if you want portability and simplicity; go with the full G4 for more control and vaping modes.

Technical Specifications Table

Value & Price Estimation

The G4 Mini is priced at CAD 19.99. Given the flavor quality, long pod life, and build design, it offers great value for both beginners and experienced MTL vapers looking for a backup or travel-friendly kit.

Final Thoughts and Recommendations

The Uwell Caliburn G4 Mini strikes a perfect balance between simplicity and performance. It’s a sleek, leak-resistant pod vape that delivers top-tier flavor with minimal effort—ideal for anyone who values discretion and portability.

While it lacks some advanced features, its strengths lie in flavor consistency, pod compatibility, and user-friendly operation. Whether you’re new to vaping or looking for a low-maintenance daily driver, the G4 Mini is a worthy addition to your vape arsenal.