UWELL Caliburn G4 Pro Koko Pod Kit
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The Uwell Caliburn G4 Pro Koko is the first Koko with a touchscreen. and it pairs that 2.0" shatterproof display with the largest battery in the Caliburn lineup at 2000mAh. The Koko form factor puts the battery parallel to the board instead of stacked underneath, creating a shorter, wider device that sits comfortably in the palm and fits easily in a pocket or purse. 35W max output, 3 vaping modes (Storm, Waves, Custom), stepless airflow, and full GPP + G3 pod compatibility. Available in 8 colours.
Quick Links: Caliburn G4 Pro (pen style) · Vaporesso XROS Pro 2
Device Specs
| Spec | Details |
|---|---|
| Battery | 2000mAh (integrated, rechargeable) |
| Max Output | 35W |
| Display | 2.0" shatterproof touchscreen |
| Charging | USB-C, 5V/2.5A fast charge |
| Activation | Draw-activated + button fire |
| Airflow | Stepless rotary ring on pod base (MTL to RDL) |
| Pod Capacity | 3mL (side-fill, no removal needed) |
| Included Pods | 0.4Ω + 0.6Ω GPP pods |
| Compatible Pods | All Caliburn GPP pods (0.4Ω/0.6Ω/0.9Ω/1.2Ω) + G3 pods |
| Material | Zinc alloy + aluminum + PCTG |
| Dimensions | 85.8mm × 50mm × 23mm |
| Weight | ~93g |
| Flavour Tech | PRO-FOCS 4.0 |
| Vaping Modes | Storm (strong hits) / Waves (smooth) / Custom (adjustable power curve) |
| UI Themes | 5 (blind-draw unlock system) |
| Languages | 8 supported |
| E-Liquid Compatibility | Salt nic and freebase |
Why the Koko Form Factor
The "Koko" in Uwell's naming means a box-shaped design where the battery sits parallel to the circuitry rather than stacked below it. The result is a device that's shorter than a pen-style kit (85.8mm vs. 120.7mm for the G4 Pro) but slightly wider. For many vapers, this shape is more natural to hold and easier to carry in a pocket, purse, or palm.
The trade-off for that compact shape is weight. at 93g, the Koko is heavier than the pen-style G4 Pro (78g). But it also packs a 2000mAh battery vs. the Pro's 1800mAh, making it the highest-capacity device in the entire Caliburn range.
Same Brain, Different Body
The G4 Pro Koko shares the same core internals as the G4 Pro: the same 35W output, the same 3 vaping modes (Storm, Waves, Custom), the same PRO-FOCS 4.0 flavour technology, the same GPP + G3 pod compatibility, and the same U² anti-leak system. The differences are the form factor, battery size (2000mAh vs. 1800mAh), screen size (2.0" vs. 2.51"), and the theme system (5 blind-draw themes vs. 6 standard themes).
What's in the Box
📦 Full Kit Contents
1× Uwell Caliburn G4 Pro Koko device · 1× 0.4Ω GPP pod · 1× 0.6Ω GPP pod · 1× User manual
Pod Compatibility & E-Liquids
The G4 Pro Koko works with all Caliburn GPP pods (0.4Ω, 0.6Ω, 0.9Ω, 1.2Ω) and G3 pods. the same pod ecosystem as every modern Caliburn. Side-fill design means you refill without removing the pod.
Salt nic (10–20mg) pairs best with 0.6Ω and above for MTL. Freebase (3–6mg) works well with the 0.4Ω pod for RDL. Browse our salt e-liquids and freebase e-liquids.
📊 G4 Pro Koko vs. G4 Pro. Which One?
| Feature | G4 Pro Koko | G4 Pro |
|---|---|---|
| Form Factor | Box (palm-sized) | Pen (slim) |
| Battery | 2000mAh | 1800mAh |
| Screen | 2.0" touchscreen | 2.51" touchscreen |
| Max Output | 35W | 35W |
| Weight | 93g | 78g |
| Dimensions (height) | 85.8mm (shorter) | 120.7mm |
| Vaping Modes | Storm / Waves / Custom | Storm / Waves / Custom |
| UI Themes | 5 (blind-draw) | 6 (3 + 3 unlockable) |
| Pods | GPP + G3 | GPP + G3 |
| Choose If… | You want more battery and a compact shape | You want a bigger screen and lighter weight |
📊 G4 Pro Koko vs. G4 Pro vs. XROS Pro 2. Full Comparison
| Feature | G4 Pro Koko | G4 Pro | XROS Pro 2 |
|---|---|---|---|
| Battery | 2000mAh | 1800mAh | 2000mAh |
| Weight | 93g | ~78g | 65g |
| Max Wattage | 35W | 35W | 30W |
| Screen | 2.0" touchscreen | 2.51" touchscreen | 0.96" TFT |
| Form Factor | Box (Koko) | Pen | Pen (slimmest) |
| Vaping Modes | Storm / Waves / Custom | Storm / Waves / Custom | Power / ECO |
| Puff Tracking | Counter | Counter | Daily + weekly charts |
| Best For | Box form, biggest battery | Biggest screen, most control | Lightest weight, all-day battery |
Frequently Asked Questions
What's the difference between the G4 Pro Koko and the G4 Pro?
Same internals, different body shape. The Koko is a box-shaped design that's shorter and wider with a 2000mAh battery and 2.0" screen. The G4 Pro is a pen-style device with an 1800mAh battery and the larger 2.51" screen. Both share the same wattage, modes, pods, and features. Choose based on which shape you prefer.
What pods does the G4 Pro Koko use?
All Caliburn GPP pods (0.4Ω, 0.6Ω, 0.9Ω, 1.2Ω) and G3 pods. The kit includes one 0.4Ω and one 0.6Ω GPP pod. Pods from a Caliburn G3, G4, or G5 Lite are all compatible.
How long does the battery last?
The 2000mAh battery typically lasts 1–3 days depending on wattage and vaping style. MTL at moderate wattage can stretch to 2–3 days. RDL at higher wattage may need daily charging. Fast USB-C charging (2.5A) gets you back up quickly.
Does it have a touchscreen?
Yes. a 2.0" shatterproof touchscreen that handles wattage adjustment, mode switching, puff counter, themes, and settings. It's the first Koko-style Caliburn with a full touchscreen.
What are the blind-draw UI themes?
The G4 Pro Koko has 5 UI themes that unlock through an interactive card-game mechanic tied to your puff count. It's a gamified system. vape more, unlock new themes. Each theme changes the screen's colour scheme, layout, and animation.
Can I use salt nic and freebase?
Yes. Salt nic (10–20mg) with 0.6Ω, 0.9Ω, or 1.2Ω pods for MTL. Freebase (3–6mg) with the 0.4Ω pod for RDL.
Can I buy the G4 Pro Koko online in Canada?
Yes. Vaping The Way ships free across Canada on orders over $75.00, and offers free same-day delivery in Regina, Saskatchewan Monday through Friday. Also available at any of our 9+ stores across Saskatchewan and Alberta.
How fast is shipping?
Does it come with a warranty?
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What's the returns policy?
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