Uwell Caliburn G2 Review

The Uwell Caliburn G2 is a compact refillable pod system built around replaceable mesh coils and a genuinely useful airflow dial, typically landing in the budget-friendly range (our unit was priced at $21.99). It’s strongest on flavor clarity, pocket comfort, and simple daily reliability, while its small 2 mL pod and limited “tuning” beyond airflow won’t suit power-hungry users or heavy all-day chain vaping.

Product Overview

Final Verdict

What the Caliburn G2 does well is the stuff I care about day-to-day: predictable output, low-fuss filling, and an airflow adjustment that meaningfully changes the pull. Flavor stays “clean” more often than not, especially when you keep the pod topped up and don’t rush a fresh coil. The trade-off is capacity and control: you’re living with a 2 mL pod, and there’s no real power adjustment—just coil choice and airflow.

• Who It’s For
  • Adults who prefer MTL with occasional looser, restricted hits
  • Commuters who want a light device that doesn’t feel fragile
  • Users who like replaceable coils for less waste and lower running cost
• Who It’s Not For
  • Anyone who wants true DL airflow or high wattage
  • Heavy chain vapers who hate refilling small pods
  • Tinkerers who want screens, wattage control, or deep settings

How We Tested It

We ran the Caliburn G2 across our usual rotation: two coil options, multiple airflow positions, and both draw and button activation. We scored it on Flavor, Throat Hit, Vapor Production, Airflow/Draw, Battery Life, Leak Resistance, Build Quality, Ease of Use, and Portability, logging notes over commutes, desk breaks, and longer evening sessions. We also tracked charging behavior, pod condensation, and whether performance drifted as the battery dropped.

Our Testing Experience

The first thing I noticed is how “sorted” the hand-feel is—36 g sounds like a spec-sheet detail until you’re actually walking with it in a pocket and it disappears. The pod’s little airflow wheel is where the G2 stops feeling generic: I could dial it from a snug, cigarette-like pull to a looser restricted draw without the device getting weird or whistly. We mostly ran the 1.2 Ω coil when we wanted a calmer, tighter session, and the 0.8 Ω coil when we wanted a thicker, warmer puff; on a quick meter check, I saw peaks around 17.7 W on the 0.8 Ω setup. I let fresh fills sit about 10 minutes, and that avoided the “new coil sting” that shows up when people rush it. In my notes, a practical fill was about 1.9 mL before it felt like you were flirting with the top of the port. Battery-wise, I averaged roughly 2.8 mL per charge on the 1.2 Ω coil and about 2.2 mL on the 0.8 Ω coil, with a typical recharge around 33 minutes on a 2A USB-C brick. Marcus pushed long, repeated sessions on the 0.8 Ω coil—his main complaint wasn’t heat, it was refilling. Jamal treated it like an everyday carry; he liked the pocket safety of turning it off with quick clicks and appreciated that it didn’t leave his bag smelling like e-liquid.

• What we liked
  • Flavor stays crisp for a small pod kit, especially at tighter airflow
  • Airflow dial gives real, repeatable control over draw
  • Light weight and stable build for daily carry
• Who it is best for
  • MTL-first adults who want easy draw or button activation
  • People who want replaceable coils without a bulky mod
  • Anyone who values pocket comfort and quick top-offs
• Where it falls short
  • 2 mL capacity means frequent refills if you vape steadily
  • Limited control beyond airflow and coil choice
  • Small pod format can collect normal condensation over time

Pros & Cons

Details

• Price (sale): $21.99
• Device type: refillable pod system (AIO) with replaceable coils
• Battery: 750 mAh; USB-C (Type-C) charging
• Output: up to 18 W (coil-driven, automatic behavior in use)
• Pod capacity: 2 mL; top-fill via mouthpiece removal
• Coils: FeCrAI UN2 Meshed-H 0.8 Ω and 1.2 Ω (press-fit)
• Size/weight/materials: 110.5 × 22.5 × 13 mm; 36 g; PA + aluminum alloy
• Our measured averages: ~33 min recharge (2A); ~2.8 mL/charge (1.2 Ω) and ~2.2 mL/charge (0.8 Ω)

Review Score

Choosing the Caliburn G2

Pick the Caliburn G2 if you want a small pod that prioritizes MTL flavor, predictable behavior, and coil swaps over screens and settings. The key decision points are your preferred draw (tight MTL vs looser restricted), how much you hate refilling a 2 mL pod, and whether you prefer replaceable coils versus disposable pods. If you want a similarly simple pod with a larger 1000 mAh battery and top-fill pods with built-in coils, the Vaporesso XROS 3 is a strong fit. If you want more tuning headroom (adjustable wattage up to 30 W) while staying compact, the OXVA XLIM Pro makes more sense.

Limitations

The Caliburn G2 is excellent at “daily pod basics,” but it’s still a small-format system with small-format compromises.

• 2 mL capacity forces frequent refills during steady use
• Limited control surface: airflow and coil choice do most of the work
• Routine condensation cleanup is necessary to keep it feeling hygienic

Caliburn G2 vs Alternatives

• Why choose these models
  • Replaceable coils + strong flavor in a lightweight body
  • Airflow dial gives real control over MTL tightness
  • Simple operation: draw or button, minimal learning curve
• Alternatives to consider
  • Vaporesso XROS 3: 1000 mAh battery; simple top-fill pod system
  • OXVA XLIM Pro: adjustable 5–30 W for users who want more tuning
  • VOOPOO Doric 20: 1500 mAh battery and up to 18 W in a pen-style format

Pro Tips

• Prime a new coil fully, then let the pod sit about 10 minutes before the first long session.
• Start with tighter airflow, then open it gradually; it’s easier to find your “sweet spot” that way.
• Keep the pod above the minimum line; small pods punish low liquid levels faster.
• Wipe the pod bay and the bottom of the pod every day or two to manage condensation.
• If you pocket-carry, turn the device off before tossing it in a bag or jeans.
• For calmer MTL and smoother sessions, start with the 1.2 Ω coil; use 0.8 Ω when you want more warmth and density.
• Don’t overfill—leave a little headroom to reduce seepage around the fill area.
• Swap coils at the first sign of persistent off-notes; pushing too far makes the whole pod taste stale.
• Keep a spare pod or coil set in your car/work bag; this device is easy to keep “always ready.”

FAQs

Does the Caliburn G2 work better on button or auto-draw?

Both are reliable. I used auto-draw for walking and button-fire at a desk when I wanted consistent timing on each puff.

How tight can the draw get?

With the airflow wheel nearly closed, it can feel properly MTL-tight; opening it up shifts toward a looser, restricted pull rather than true DL.

How often will I refill a 2 mL pod?

If you vape lightly, it can last much of a day; steady use means multiple refills. The 0.8 Ω coil tends to empty it faster than the 1.2 Ω coil.