The SMOK TFOS and the Uwell Caliburn G5 KOKO are both compact pod devices aimed at everyday vapers, sharing a 35 W max output and a built-in display screen. On paper they look closer than most matchups, with several categories ending in a tie.
This comparison sticks strictly to the specs and notes provided, calling out where one device pulls ahead and where there simply is not enough data to declare a winner.
| Spec | SMOK TFOS | Uwell Caliburn G5 KOKO |
|---|---|---|
| Image |  |  |
| Battery capacityBattery | 1700 mAh | 1600 mAh |
| Max outputPerformance | 35 W | 35 W |
| Battery typeBattery | Internal | Not stated |
| Display screenConvenience | Yes | Yes |
| Adjustable airflowConvenience | 🏆 Yes | No |
| Variable wattagePerformance | Yes | Yes |
| Charge time to 80%Battery | 45 min | Not stated |
| Charge currentBattery | 1.55 A | Not stated |
| WeightConvenience | 80 g | 🏆 66 g |
| Coil resistancesPerformance | 0.8ohm installed, 0.6ohm | 0.4Ω: 19-35W / 0.6Ω: 13-25W / 0.9Ω: 9-15W / 1.2Ω: 6-11W |
| Charging portBattery | Type-C | 5V/2A fast charging |
| Build materialConvenience | Zinc Alloy, ABS plastic | leather-style materials |
| Best US priceat time of comparison | $11.49* | $12.99* |
| Read Review & Best Price | Read Review & Best Price |
* Lowest US price we found on 11 Aug 2026. Prices change often — see each review below for live pricing.
Battery
Battery capacity comes out as a tie, with the SMOK TFOS at 1700 mAh against the Uwell Caliburn G5 KOKO at 1600 mAh — a 100 mAh gap that is too small to call meaningfully different in practice. Charge time (45 minutes to 80% for the SMOK TFOS) and charge current (1.55 A) have no equivalent figures listed for the Uwell Caliburn G5 KOKO, so those specific details can’t be weighed against each other, but the overall battery category still lands as a tie based on the comparable capacity numbers.
Performance
Both devices max out at 35 W and offer variable wattage, which is why performance is scored a tie. The SMOK TFOS lists two coil resistance options (0.8ohm installed and 0.6ohm) while the Uwell Caliburn G5 KOKO lists four resistances (0.4Ω, 0.6Ω, 0.9Ω, 1.2Ω) each with its own wattage range, but since the coil setups aren’t directly comparable in format, this detail is marked as no comparable data rather than tipping the category either way.
Convenience
SMOK TFOS wins the convenience category on the strength of its adjustable airflow, a feature the Uwell Caliburn G5 KOKO does not have listed at all. Weight favors the Uwell Caliburn G5 KOKO at 66 g versus 80 g for the SMOK TFOS, which would make it the lighter device to carry, but airflow control is the deciding factor here per the category call. Charging port details differ in format (Type-C for the SMOK TFOS versus 5V/2A fast charging for the Uwell Caliburn G5 KOKO) and aren’t directly comparable, so that detail doesn’t factor into the outcome.
The SMOK TFOS suits vapers who want adjustable airflow control as part of their everyday vaping setup.
The Uwell Caliburn G5 KOKO suits vapers who prioritize a lighter device at 66 g and want a range of coil resistance options to choose from.
The verdict
Neither device comes out as an all-around winner. Battery and performance are ties based on matching or closely comparable figures, while the SMOK TFOS takes convenience thanks to its adjustable airflow. The Uwell Caliburn G5 KOKO is lighter and offers more coil resistance options, but there isn’t enough comparable data on charging specs or build materials to declare an overall champion. The right pick depends on whether adjustable airflow or a lighter build matters more to the individual vaper.