Uwell Caliburn Range Compared: G4 vs G4 Pro vs G5 (and the Rest)
Ask ten UK vape shops for a refillable recommendation and the word you'll hear most is Caliburn. Uwell's pod family has been the default answer for years, but the range now spans multiple generations and sub-lines whose names explain nothing. Here's every Caliburn compared, organised so the choice makes sense — and an honest note on what we can actually ship today.
What we have in stock right now
Straight answer before the comparison, because there is no point reading a buying guide that ends in a sold-out page. The G-series kits (G4, G4 Pro, G5) are not currently available from us. What we do have:
- Caliburn Tenet (£19.95) — the retro-styled Caliburn, and the closest thing to a classic MTL Caliburn experience we can ship today.
- Caliburn Tenet Koko (£19.95) — the squat, wide format for anyone who dislikes the stick shape.
- Caliburn G Replacement Coils (£9.99) — if you already own a Caliburn G and just need coils.
If you want a comparable MTL refillable available today and you are not tied to the Uwell name, the OXVA Xlim Pro 2 (£16.66) is the kit most Caliburn owners cross-shop — same MTL character, 30W, and in stock. Our OXVA Xlim range comparison breaks that family down the same way this page does the Caliburns.
The current flagships: G4, G4 Pro and G5
The Caliburn G4 is the mainstream pick of the current generation: 1300mAh, up to 35W through Uwell's PRO-FOCS 4.0 flavour tech, a compact colour screen, and two characters in one kit — Storm mode for dense vapour, Wave for smooth balance. The G4 Pro scales it up with an 1800mAh battery and the line's first full touchscreen — 2.51 inches of shatterproof glass — while the G5 is the newest generation: 1600mAh, upgraded GPP Alpha pods with extended coil life, and tap-anywhere control — tap the body three times to switch modes.
All three are out of stock with us at the time of writing. We have left the comparison here because it is the question people ask, and the answer does not change with our stock levels — but do not order one from this page expecting it to ship.
Why the pod platform is the real story
The modern Caliburns share the GPP pod ecosystem — pods cross-fit between the G3, G4, G4 Pro and G5 (2ml TPD versions in the UK). That's rare and valuable: your spare pods survive a device upgrade, and one pod purchase serves whichever Caliburn is charged. It's a quiet reason the family keeps its recommendation status — the ecosystem rewards loyalty instead of punishing it.
The wider family
Around the flagships sit the earlier generations and sub-lines: the G2 and G3 Lite for classic simplicity, the budget-friendly A2, A2S, A3 and AK series — the lightest, simplest Caliburns, ideal first kits — and the Tenet and Koko designs for anyone who prefers retro styling or the squat, wide format over a stick. All are MTL-focused pod kits at heart. The two Tenet models are the ones we currently stock — see what is live in our Uwell collection.
Which Caliburn should you buy?
Available now: Tenet, or Tenet Koko if you prefer the wide format. The safe answer when stocked: G4 — the balanced modern default. Battery and features: G4 Pro. Newest tech: G5. Tightest budget: the A-series. Whichever you pick, the pairing is the same: 10–20mg nic salts for the smooth MTL draw the Caliburn was built around — our nicotine strength guide for pod vapes helps pick the mg.
Frequently asked questions
Which Caliburn can I buy today?
The Caliburn Tenet and Tenet Koko, both £19.95, plus Caliburn G replacement coils. The G-series kits are out of stock — check the Uwell collection for current availability, or browse all pod kits for alternatives.
Are Caliburn pods interchangeable?
Within the modern GPP platform, yes — G3, G4, G4 Pro and G5 share pods. Older lines (G2, A-series, Tenet) use their own pod formats, so match pods to your exact model there.
Is the Caliburn good for quitting smoking?
It's arguably the category's best-known answer to exactly that: tight cigarette-like draw, dependable coils, and nic salt compatibility at 20mg for pack-a-day switchers.
Caliburn G4 or G5 — which is better?
The G5 is newer with a bigger battery and longer-lived Alpha pods; the G4 is cheaper with the proven Storm/Wave modes. Both run shared GPP pods, so neither choice locks you in. Neither is in stock with us at present. 18+ only.