The Uwell Caliburn G5 KOKO and Vaporesso ECO NANO Pro are two compact pod kits aimed at everyday vapers, both offering a screen, adjustable airflow and variable wattage. On paper they look closely matched in features, but the underlying specs tell a more nuanced story.
This comparison sticks strictly to the confirmed figures for each device, calling out clearly where the data allows a fair judgement and where it simply doesn’t.
| Spec | Uwell Caliburn G5 KOKO | Vaporesso ECO NANO Pro |
|---|---|---|
| Image |  |  |
| Battery capacityBattery | 🏆 1600 mAh | 1000 mAh |
| Max outputPerformance | 35 W | Not stated |
| Battery typeBattery | Not stated | 1000mAh |
| Display screenConvenience | Yes | Yes |
| Adjustable airflowConvenience | Yes | Yes |
| Variable wattagePerformance | Yes | Yes |
| Charge currentBattery | 🏆 2 A | 1 A |
| WeightConvenience | 66 g | 🏆 65 g |
| Coil resistancesPerformance | 0.4Ω: 19-35W / 0.6Ω: 13-25W / 0.9Ω: 9-15W / 1.2Ω: 6-11W | 0.6Ω LUSH MESH, 0.6Ω MESH, 0.8Ω MESH, 1.2Ω MESH |
| Charging portBattery | 5V/2A | Type-C |
| Build materialConvenience | leather-style | Gunmetal |
| Best US priceat time of comparison | $12.99* | $19.88* |
| Read Review & Best Price | Read Review & Best Price |
* Lowest US price we found on 25 Jul 2026. Prices change often — see each review below for live pricing.
Battery
The Uwell Caliburn G5 KOKO wins on battery, and the numbers back it up: a 1600 mAh cell against the Vaporesso ECO NANO Pro’s 1000 mAh gives it considerably more capacity for a day’s vaping between charges. It also charges faster on paper, with a 2 A charge current versus 1 A on the ECO NANO Pro, meaning less time tied to a cable overall.
Performance
Performance is a tie. Both devices offer a display screen, adjustable airflow and variable wattage, putting them on equal footing for control and feedback. The Caliburn G5 KOKO does list a 35 W max output and a wider spread of coil resistance options (0.4Ω to 1.2Ω), while the ECO NANO Pro’s max output isn’t stated and its coil range covers 0.6Ω to 1.2Ω across different mesh builds; since the two coil systems and outputs aren’t directly comparable on the same terms, this category is called even rather than favouring either side.
Convenience
The Vaporesso ECO NANO Pro takes convenience on the strength of being 1 g lighter (65 g versus 66 g), a marginal but real difference for pocket carry. Charging port details also differ, with the ECO NANO Pro specifying Type-C against the Caliburn G5 KOKO’s 5V/2A port, though this isn’t listed as a like-for-like spec, so it isn’t the deciding factor here.
The Uwell Caliburn G5 KOKO suits vapers who prioritise longer battery life and faster charging over a full day of use.
The Vaporesso ECO NANO Pro suits vapers who want the lightest possible device for everyday pocket carry.
The verdict
Neither device comes out on top across the board. The Uwell Caliburn G5 KOKO is the stronger choice for battery life and charge speed, performance is evenly matched between the two, and the Vaporesso ECO NANO Pro edges ahead slightly on convenience thanks to its lighter build. Choosing between them comes down to which of these areas matters most to the individual vaper.