RELX devices maintenance guide (2025) (v5)
RELX devices advice for Trinidad, covering best practice, what to look for and where the trade-offs actually sit.
Finding the right relx devices in Trinidad is easier than most catalogues make it sound. Build quality is the quiet differentiator here, with tight seams and a connector that has not loosened after repeated removal.
Search results for relx devices in Trinidad are crowded, which is why this page focuses on what actually changes the experience. Charging over USB-C takes about 53 from empty, and the pass-through means the device can be used while plugged in on the smaller batteries.
Battery behaviour is where the Uwell Calibre earns its keep: the 650 mAh cell holds a usable charge for most of a day at 80 and recharges over USB-C. We would pair the Uwell Calibre with a 70:30 PG/VG liquid, which is where the balance between throat hit and cloud density sits most comfortably. Replacement coils are widely available, and the 0.6 Ω mesh coil is the sensible default to keep in stock.
The wide bore mouthpiece is comfortable over long sessions and resists the condensation that gathers on narrower tips. Comparing this against a 70:30 PG/VG setup shows the difference clearly: one favours flavour, the other favours volume. The 1.6 ml capacity is a genuinely useful middle ground: enough liquid for a long session without turning the device into a pocket problem.
What surprised us most was how little the 0.6 Ω mesh coil changes the draw character compared with the 70:30 PG/VG liquid sitting in the chamber. The Crimson Red finish hides fingerprints far better than the gloss options, which matters more than it sounds on a device handled daily. Worth noting that the magnetic contact takes a small amount of care to keep clean, which we cover in the maintenance section below.
Vapour production is more than adequate at 80, and pushing beyond that adds heat rather than anything worth carrying. Expect roughly 669 full puffs from a charge at 6 mg/ml, based on average session length in our testing. Replacement coils are widely available, and the 0.6 Ω mesh coil is the sensible default to keep in stock.
Specifications
Every unit in the Uwell Calibre family shares the same core platform, so the differences come down to the numbers below.
| Reference model | Uwell Calibre |
|---|---|
| Brand family | Vaptio |
| Battery capacity | 650 mAh |
| Power range | 80 W |
| Liquid capacity | 1.6 ml |
| Coil | 0.6 Ω mesh |
| Bottle size | 300 ml |
| Liquid ratio | 70:30 PG/VG |
| Nicotine strength | 6 mg/ml |
| Material | polycarbonate |
| Charge port | USB-C |
| Connector | magnetic contact |
| Airflow | ring control |
| Mouthpiece | wide bore |
Flavour and performance notes
A representative profile is Coconut Pineapple: creamy, tropical, described as smooth coconut layered over pineapple. On a 70:30 PG/VG ratio this reads clearly on the first day and holds its character to roughly the 0.6 Ω mesh mark before the coil begins to mute it.
Practical considerations in Trinidad
Availability in Trinidad is the factor that decides most outcomes here. Confirm the 0.6 Ω mesh and the USB-C are both in stock before committing, and check that the magnetic contact matches your existing device if you already own hardware. Duty and TTD rates move, so treat prices as current rather than fixed.
If any of the above addresses what you were trying to solve, the rest of the pages in this section cover it in more detail.
