Right, let's address the elephant in the room - they've put a touchscreen on a KOKO. Part of me thought "here we go, solving problems that don't exist," but honestly? It works. One tap to adjust wattage, switch between modes, or reset your puff counter. No messing about with button combinations or trying to remember what three clicks does versus five clicks.
The screen shows everything clearly - battery percentage, wattage, coil resistance, puff count. You can even rename the thing if you want (mine's called "NOT ELLIE'S" - fat lot of good that did). There are 8 language options, brightness controls, and screen timeout settings. Seriously smart for a pod kit.
Gaming Features - Collecting UI Themes
This is where it gets a bit weird but actually quite fun. You start with 2 UI themes unlocked, and as you vape more and hit certain puff milestones, you unlock 3 more at 2000, 10,000 and 20,000 puffs. It's like collecting skins in a video game but for your vape. Is it necessary? Absolutely not. Is it a bit of fun? Yeah, I reckon it will be.
I've only managed just over 1000 puffs testing this so far, so haven't unlocked any of the extra themes yet. Should hit that first 2000 puff milestone soon enough though. The two starter themes look good - one's more minimalist and clean, the other's got a bit more going on visually. I'm curious to see what unlocks at 2000 puffs, though that 20,000 one is going to take some serious vaping to get to. It's a nice touch that adds something different to the whole experience, even if it is a bit gimmicky. Gives you something to look forward to I suppose - like a little reward for using the device.
Three Output Modes - Actually Useful
You've got three modes to play with:
- Storm Mode: Instant power for a stronger throat hit
- Waves Mode: Smooth, consistent power for better flavour
- Custom Mode: This is the clever bit - adjust power at the start, middle, and end of your puff
I've been mainly using Waves Mode with my usual Bombo Master Custard, but that Custom Mode is brilliant for complex dessert flavours. You can boost the power at the end of your draw to really bring out those custard notes. Really nice feature that works well.
Pod Performance - G3 and GPP Compatible
The kit comes with two pods - a 0.4ohm and a 0.9ohm in the UK version. The flavour is spot on - Uwell's PRO-FOCS 4.0 tech is doing its job. Not quite at OXVA Xlim level for me (nothing is), but we're talking 9/10 versus 10/10.
Here's the best bit - it works with all the Caliburn G3 and GPP pods. So if you're upgrading from a G3, keep all your spare pods. You've got options from 0.4ohm right up to 1.2ohm, covering everything from tight MTL to loose RDL.
The stepless airflow adjustment is smooth as butter. Just slide it to wherever feels right - no clicking between preset positions. I've got mine about halfway for that perfect restricted lung hit with 5mg salts.
Day to Day Use - Simple When You Want It, Smart When You Need It
If you just want to vape, fill a pod, click it in, and go. The touchscreen turns what could be complicated into something really simple. Want to adjust wattage? One tap, slide your finger, done. No counting clicks or holding buttons.
Filling the pods is typical Caliburn excellence - pull off the mouthpiece or use the side fill Uwell GPP pods, squeeze in your juice through the side or top fill (depending on which pods you're using), pop it back on. Give it 5-10 minutes on first fill. I haven't had a single leak, even with it rattling around in my pocket with my keys.
The U² anti-leak tech actually works. I've been rough with this thing - thrown it in bags, left it on its side overnight, carried it upside down in my pocket. Not a drop of juice where it shouldn't be. This is where Uwell get a 10/10 - they never leak ever in my experience.
How It Stacks Up Against My Daily Drivers
This is where it gets interesting. My daily rotation is mainly OXVA Xlim devices and now the XROS Pro 2. The G4 Pro KOKO won't be earning a spot in my daily rotation - not because it's poor, it's amazing actually - it's just not the shape I'm into, that's all. I prefer the stick-style devices.
But it will be getting daily use - Ellie's already claimed it. She loves these square KOKO-style pod kits and this has everything she'd want and more. The touchscreen, the customisation options, the whole lot. She only vapes in the evening while watching TV (she's cut down massively over the last 6 months), so it'll probably take her a month or so to unlock those UI themes at 2000, 10,000 and 20,000 puffs.
The touchscreen gives it an edge over the XROS Pro 2 for adjustability, but the XROS has slightly better battery efficiency. The Xlim Pro 2 DNA still wins on pure flavour precision with that DNA chip, but the KOKO's gaming features and screen make it more fun to use day to day.
For someone choosing their first refillable pod kit though? At £24.99, this is a no-brainer. You're getting a feature-rich device that looks amazing and has a massive touchscreen.
Who's This For?
Honestly? Anyone who wants a quality pod kit without breaking the bank. If you're still buying prefilled vape kits and refills, stop right now and get this - you'll save a fortune and get better flavour. Moving from a basic pod kit? This is perfect - simple to use but with room to grow as you get more experienced.
Current Caliburn users wondering about upgrading? If you've got a G3, the touchscreen and battery life make it worthwhile. Got an older Caliburn? This is a massive upgrade in every way.
Heavy vapers who want something pocketable but powerful? This is it. Light vapers who want something that'll last a week between charges? Also this.
The only people I wouldn't recommend this to are those who absolutely hate anything with a screen. If you're a minimalist who wants zero electronics, stick with the basic Caliburn devices.
My Verdict
The Uwell Caliburn G4 Pro KOKO shouldn't work as well as it does. A touchscreen on a KOKO device sounds like fixing something that wasn't broken, but they've actually made it better. The interface is intuitive, the battery life is incredible for the size, and at £24.99 it's priced so aggressively it makes everything else look expensive.
Is it perfect? No, but it's bloody close for the money. The combination of that 2000mAh battery, touchscreen controls, and compatibility with the excellent G3/GPP pods makes this a winner. The gaming features are a bit gimmicky but add some fun to the experience.
For anyone using prefilled pods or disposables, this is your sign to make the switch. You're literally paying the price of a single prefilled kit for something that'll last you years if you look after it. For existing Caliburn users, it's the best KOKO they've made. For everyone else, it's one of the best value pod kits on the market right now.
While it won't be joining my personal daily rotation (I'm just not a square pod kit person), it's already become Ellie's new favourite device. She absolutely loves it - the touchscreen, the customisation, everything about it is perfect for her vaping style. When a device impresses me this much even though it's not my preferred shape, and when Ellie immediately claims it as her own, you know Uwell have done something right. At this price? If you like the KOKO shape or want to try something different, just get one. You won't regret it.
Ready to grab the Caliburn G4 Pro KOKO? Get yours for £24.99 with free next-day UK delivery at Ecigone.
