Article: UWELL Caliburn G4 Pro Koko Kit

Jan 6, 2026

UWELL Caliburn G4 Pro Koko Kit

The UWell Caliburn was launched as a classic refillable pod kit and has been a best-selling device for adult vapor consumers since 2018. It was designed as a refillable alternative to Juul and optimized for nicotine salts. But as its competitors grew in size and disposable vapes increased in popularity, the UWell Caliburn pod systems collection has had to evolve as well.

If you are looking for a compact, discrete, and powerful vape that fits in the palm of your hand, the UWELL Caliburn G4 Pro Koko Kit is the perfected of the vape pod kit.

UWELL Caliburn G4 Pro Koko Specifications

UWELL CALIBURN G4 PRO KOKO KIT SPECIFICATIONS

Capacity: 3mL
Refill: Side-Fill
Pod Design: Magnetic Attachement, Droplet Shaped E-Liquid Window
Pod Compatibility: UWELL Caliburn GPP and G3 Pods
Battery Capacity: 2000mAh
Recharge: Type-C USB
Wattage Range: 35W
Output: Adjustable Wattage Controls
Display: 2" Touchscreen
Airflow: Stepless Airflow Control
Resistance: 1.0 ohms
Dimensions: 85.8 x 50 x 23mm

Included in UWELL Caliburn G4 Pro Pod Kit

1 x UWELL Caliburn G4 Pro KOKO 35W Pod System
1 x 0.4ohm UWELL CALIBURN GPP Pod
1 X 0.6ohm UWELL CALIBURN GPP Pod
1 x User Manuals

Introduction to the UWELL Caliburn G4 Pro Koko

INTRO features UWELL Caliburn G4 Pro Koko

The G4 Pro Koko device is part of the UWELL Caliburn collection. It is UWELL's latest innovation in pod systems.
KOKO is used by UWELL to describe Caliburn compatible pod kits where the battery is placed parallel to the circuitry, rather than below, to create a box shaped form factor that is shorter but slightly wider.
The advantage of this shape is it allows for a larger battery and a palm shaped vape.
The UWELL Caliburn G4 Pro Koko is a next-gen pod system with advanced features and a screen.
The UWELL Caliburn G4 Pro Koko has a 2000mAh battery and delivers up 35W output.
The G4 Pro Koko is compatible with GPP and G3 Caliburn Pods with a 3ml capacity.
This combination is integral to its Pro-FOCS 4.0 flavor technology for improved flavor production and is designed for both MTL and RDL vaping.
Despite its small size, the G4 Pro Koko has a 2.0-inch ultra-shatterproof HD touchscreen with interactive UI, 5 blind-draw themes, and customizable clean UI for a personalized vaping experience.
Offers three output modes: Storm Mode for instant throat hit, Waves Mode for smooth flavor, and Custom Mode for tailored performance.
Equipped with U² anti-leak technology, upgraded GPP pods compatible with G4 Pro Koko and G3 series, ergonomic design, and Type-C charging.
The device's dimensions are 85.8mm x 50mm x 23mm, and it is constructed from zinc alloy, aluminum, and PCTG.
Available in multiple colors: Desert Gold, Waves Black, Cosmic Gray, Mirror Silver, Crystal White, Light Green, Glass Blue, Coral Pink.
With 35W of power, the UWELL Caliburn G4 Pro Koko can handle any style of vaping, although it was optimized for nicotine salts.

Key Features of the Caliburn G4 Pro Koko

Compatible with Caliburn GPP Pod Cartridge (3ml capacity, side filling, U² anti-leak technology) for great vaping performance.
Offers 3 output modes: storm mode for strong throat hits, waves mode for smooth taste, and customize mode for tailored vaping.
The Caliburn G4 Pro Koko features a built-in 2000mAh battery with 35W max output and Type-C charging gives it a longer life between charges than many competitors. The original Caliburn has a battery of only 520mAh in comparison.
Equipped with a 2.0 ultra-shatterproof touchscreen and 5 blind UI themes for a personalized vaping experience. This gives the UWELL Caliburn G4 Pro Koko Kit a premium interface akin to a vape mod and the flash of a disposable vape.
The clean UI to rename allows users to easily rename their device, supporting creative naming and further personalization. The smart settings menu lets users set brightness, adjust screen timeout, and manage other system preferences for a tailored experience.
Easy operation is ensured with one-tap access to core features, making navigation straightforward. The reset system is available for managing and personalizing device functions as needed. While the smart touchscreen offers advanced customization, it might be complex for beginners who prefer simple operation.

UWELL Caliburn GPP Pod Cartridge Overview

The UWELL Caliburn GPP Pod Cartridge is fully compatible with the G4 Pro Koko pod system and the UWELL Caliburn GPP system, ensuring seamless integration and optimal vaping performance.
Offers a 3ml e-juice capacity, a convenient side fill design for easy and mess-free refills, and stepless airflow control system for a mess-free vaping experience.
GPP pods are available in two resistance options: 0.4ohm and 0.6ohm, for a customized vaping experience.
Designed for optimal vaping performance with advanced pod system technology.
The UWELL Caliburn G4 Pro Koko Kit is also compatible with the Caliburn G3 Pods.

Using the UWELL Caliburn G4 Pro Koko Pod System

The Uwell Caliburn G4 Pro Koko pod system is engineered for outstanding performance, powered by a robust 2000mAh battery that supports up to 10 days of non-stop vaping. This ensures you can enjoy your favorite e-liquids without frequent recharging interruptions.
With its innovative stepless airflow control system, the G4 Pro Koko allows you to fine-tune your draw for a truly customized vaping experience—whether you prefer a tighter, more intense inhale or a smoother, airier taste.
The device features three distinct output modes: Storm mode delivers strong throat hits for those who crave intensity, Waves mode provides a smooth taste for a more mellow session, and Customize mode lets you personalize output power and settings to match your preferences.
Navigating the Caliburn G4 Pro Koko is effortless thanks to its smart touchscreen, which grants instant access to core features with a single tap. You can easily switch between output modes, adjust settings, and monitor battery life.
Activate Clean UI mode to unlock advanced customization options: rename your device, set screen brightness, adjust screen timeout, manage animation effects, enable battery saver, or reset the system—all designed to enhance your vaping experience.
The G4 Pro Koko pod system supports 8 languages and offers 5 unique blind UI themes, allowing you to personalize the look and feel of your device.
Fully compatible with Caliburn GPP Pod Cartridges, the G4 Pro Koko ensures mess-free vaping with U² anti-leak technology, making it a reliable choice for both new and experienced vapers seeking convenience and performance.

UWELL Caliburn G4 Pro Koko Summary

The Uwell Caliburn G4 Pro Koko pod system distinguishes itself from other pod systems with its advanced output modes, including Storm mode for instant throat hit, Waves mode for smooth flavor, and Customize mode for tailored performance—offering more versatility than most competitors.
Its stepless airflow control system provides a level of precision rarely found in other pod systems, allowing users to adjust their vaping experience to perfection.
The inclusion of a smart touchscreen sets the G4 Pro Koko apart, making it easy to access settings, switch modes, and monitor device status with intuitive, one-tap operation.
Ergonomically designed and compact, the G4 Pro Koko is easy to carry and comfortable to use, making it ideal for on-the-go vaping.
Compatibility is another strong point: the G4 Pro Koko is fully compatible with Caliburn GPP Pod Cartridges, giving users a wide range of coil options and ensuring a mess-free, leak-resistant experience thanks to U² anti-leak technology.