What Is the Uwell Caliburn GK2?
The Caliburn GK2 is a rechargeable, refillable pod system — the device is charged and reused, while the 2ml pod is topped up with your own e-liquid rather than replaced whole. This makes it a more economical, longer-term option compared to disposable vapes for daily vapers. See our disposable vapes buying guide for a full comparison.
Key Features
- 690mAh integrated battery — up to 7 hours of moderate vaping per charge
- 18W maximum output
- 2ml top-fill refillable pod with juice viewing window
- Compatible with Caliburn G & G2 Coil Series (0.8Ω & 1.2Ω UN2 Meshed-H)
- KOKO-shaped light bar that changes color by power level
- Haptic feedback for low voltage, overtime, open circuit & cartridge install states
- Pro-FOCS flavor adjustment technology
- Adjustable airflow wheel
- Draw-activated firing — no button required
- USB Type-C fast charging (~30 minutes); lanyard attachment point
- Zinc-alloy chassis, cyberpunk-inspired design
Specifications
| Attribute | Detail |
|---|---|
| Battery Capacity | 690mAh |
| Max Output | 18W |
| Pod Capacity | 2ml, top-fill |
| Coil Compatibility | Caliburn G 0.8Ω Mesh (pre-installed) & Caliburn G2 1.2Ω Mesh |
| Charging Port | USB Type-C |
| Activation | Draw-activated |
| Airflow | Adjustable wheel |
| Pod Connection | Magnetic, press-fit coil installation |
| Chassis Material | Zinc-Alloy |
| Dimensions | 72.2mm x 46.6mm x 16.3mm |
| Weight | 45.2g |
| What’s Included | 1x Caliburn GK2 Device, 1x 0.8Ω UN2 Meshed-H Coil, 1x 1.2Ω UN2 Meshed-H Coil, 1x Type-C Cable, 1x Lanyard, 1x User Manual |
Why Choose the Caliburn GK2?
The GK2 stands out for its interactive design: the KOKO light bar shifts color with power level and vibrates to flag device states like low battery or cartridge issues, which is unusual at this price point. Combined with Pro-FOCS flavor technology and compatibility with the wider Caliburn G coil range, it’s a strong pick for vapers who want both style and reliable everyday performance.
How to Use the Caliburn GK2
- Charge fully via USB Type-C before first use (~30 minutes).
- Remove the mouthpiece cap and top-fill the pod with e-liquid.
- Insert the pod — the magnetic connection secures it in place.
- Adjust the airflow wheel for a tighter or looser draw.
- Simply draw on the mouthpiece to activate — no button needed.
New to pod systems? Start with our first-time vaping guide, and review our battery safety guidelines before charging any rechargeable device.
Genuine Uwell Devices Only
Counterfeit pod kits are common in the UAE market. Before buying, check our 9-point fake vape verification checklist. Every Caliburn GK2 sold on Vapora is a genuine, authorized Uwell unit.
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Frequently Asked Questions
What is the battery capacity of the Uwell Caliburn GK2?
The Caliburn GK2 has a 690mAh integrated battery, charged via USB Type-C, delivering up to 18W of output and roughly 7 hours of moderate vaping per charge.
What coils does the Caliburn GK2 use?
It uses the Caliburn G and G2 Coil Series, including the included 0.8Ω UN2 Meshed-H and 1.2Ω UN2 Meshed-H coils.
Is the Caliburn GK2 pod refillable?
Yes. It uses a 2ml top-fill pod that you refill yourself with e-liquid or nic salt, with a juice viewing window to help avoid dry firing.
What does the KOKO light bar do on the GK2?
It’s a color-changing light bar that shifts color based on power level and provides haptic feedback for states like low battery, overtime, or cartridge installation.
Does the Caliburn GK2 have a firing button?
No. It uses draw-activated firing only — simply inhale on the mouthpiece to vape, with no button to press.
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