Which pods does the Caliburn G4 Pro Koko use?

It uses Caliburn GPP pods, and two GPP pods come included in the kit. The device also works with the wider Caliburn G3 pod range. All of the pods fill from the top and use built-in mesh coils, so you swap the whole pod rather than a coil. Pair them with a 50/50 e-liquid for the best balance.

How long does the battery last and how do I charge it?

The built-in 2000mAh battery lasts most vapers a full day between charges. When it runs low, a USB-C cable then recharges it fully in under 50 minutes. Note that a USB-C cable is not supplied in the box, so pick one up if you do not have one already.

What is the difference between MTL and RDTL on this kit?

MTL means mouth to lung, a tight draw that feels like a cigarette. RDTL is restricted direct to lung, a slightly airier draw with a little more vapour. You switch between them by opening the adjustable airflow and choosing a suitable pod. Both styles work well with 50/50 e-liquid.

What nicotine strength and e-liquid should I use?

The Pro Koko is designed for 50/50 e-liquid, which suits both nicotine salts and freebase blends. For a tight MTL draw, nicotine salts work well. As a rough guide, 5 to 10 a day suits around 10mg salt, while heavier smokers often start near 20mg. Lighter smokers can drop to 5mg.

Is this a disposable vape?

No. It is a rechargeable, refillable pod kit and a longer-lasting alternative to disposables. You refill the 2ml pod with your own e-liquid and recharge it over USB-C. As a result, it costs less per week than single-use devices while staying fully UK TPD compliant.

Uwell Caliburn G4 Pro Koko Pod Kit

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£21.99

Brand

Uwell

Battery

2000mAh

Wattage

5-35W

Coil Type

Mesh

Coil Resistance

0.4Ω, 0.6Ω, 0.8Ω, 0.9Ω, 1.0Ω, 1.2Ω

Weight

94g

Dimension

8.3*5*2.4cm

Charging Method

USB Type-C

Liquid Capacity

2ml

Made In

China

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Compatible & Recommended Item

Uwell Caliburn GPP Replacement Pods

Product Summary

The Uwell Caliburn G4 Pro Koko is a compact square pod kit with a 2000mAh battery, max 35W output and a 2ml top-filling refillable pod. It charges over USB-C in under 50 minutes and fires automatically when you inhale, with a simple touchscreen for control. The included Caliburn GPP pods and built-in mesh coils cover both MTL and RDTL vaping, while adjustable airflow tunes the draw. Pair it with 50/50 e-liquid. Ideal as an easy all-day pod kit for anyone leaving disposables behind, in eight colours.

The Uwell Caliburn G4 Pro Koko is a simple square pod kit that suits new and returning vapers alike. It packs a large 2000mAh battery, so it comfortably lasts most people a full day. Because it charges in under 50 minutes, you are rarely left waiting. You just add your own e-liquid, click a pod in and inhale to fire.

In the box you get two Caliburn GPP pods, so you can vape straight away. As a result, there is no fiddly setup to learn first. The kit also supports both MTL and RDTL draws, meanwhile a simple touchscreen keeps control easy. However, note that a USB-C cable is not included.

At a Glance

2000mAh built-in battery for all-day vaping
Full charge in under 50 minutes
Max 35W variable output
Inhale-activated firing, with no fire button
Smart Mode, plus Storm, Waves and Custom modes
Simple touchscreen for quick control
2ml top-filling refillable pod with built-in mesh coils
Adjustable airflow for MTL and RDTL draws

Who is the Uwell Caliburn G4 Pro Koko for?

Choose it if:

You want a simple refillable pod kit with a big battery for daily carry
You are leaving disposables behind and want an easy mouth to lung draw
You like to fine-tune the inhale with adjustable airflow

Look elsewhere if:

You want big clouds: a sub-ohm kit suits direct to lung vaping better
You never want to refill or recharge: this kit needs your own e-liquid and a USB-C cable

A Square Koko in the Hand

The Pro Koko keeps the classic square Koko shape that fits neatly in a palm. It measures 83 by 50 by 24mm and weighs just 94g. So it stays light in a pocket or bag all day. On top of that, a simple touchscreen sits on the front for quick control. In total, there are eight finishes to pick from:

Waves Black, Cosmic Grey and Mirror Silver for a classic look
Crystal White and Desert Gold for a brighter finish
Glass Blue, Light Green and Coral Pink for a pop of colour

All-Day Power and Smart Modes

The 2000mAh battery is generous for such a compact device. As a result, it easily covers a full day for most vapers. When it runs low, a USB-C cable then recharges it in under 50 minutes. Because there is no fire button, you simply inhale to vape.

First insert a pod, then Smart Mode sets a suitable output for you. You can also pick Storm, Waves or Custom modes, while the output tops out at 35W.

Caliburn GPP and G3 Pods

First, top-fill the 2ml pod, then press it in and start vaping. Because the pods fill from the top, you refill without removing them. Their built-in mesh coils heat e-liquid quickly, so flavour stays clean and clear.

The kit ships with two Caliburn GPP pods, and it also takes the wider Caliburn G3 range. Meanwhile, we recommend a 50/50 e-liquid for a balanced result. Each pod runs best at its own wattage, shown in the table below.

Caliburn Pod Version & Resistance
Caliburn GPP Pods, 2ml (0.4 & 0.9 Ohm Included)	Top-Filling, Built-In Mesh, MTL & RDTL. Also in 0.6 and 1.2 Ohm.
Caliburn G3 Pods, 2ml (Compatible)	0.4, 0.6, 0.8 and 1.0 Ohm options. Top-Filling, MTL.

Adjustable Airflow, Two Draws

The Pro Koko gives you real control over the draw. First, the adjustable airflow lets you tighten or open the inhale. So you can set a snug MTL draw or a looser RDTL one. On top of that, the mode you pick shifts the feel as well. For example, Waves Mode softens the ramp-up for a smoother vape. As a result, one small device suits several vaping styles.