Vape Mod

The Ultimate Guide to the UWELL Caliburn Series: G2, G3, GK2, and X Tanks

The Ultimate Guide to the UWELL Caliburn Series: G2, G3, GK2, and X Tanks

Introduction to UWELL

UWELL, short for "Uwell Technology Co., Ltd.", is a leading brand in the vaping industry, renowned for its innovative designs, high-quality products, and commitment to enhancing the vaping experience. Since its inception, UWELL has consistently delivered cutting-edge devices that cater to both novice and experienced vapers. One of their standout product lines is the Caliburn series, which has gained immense popularity for its performance, reliability, and user-friendly features.

The Caliburn Series

The Caliburn series is one of UWELL’s flagship lines, known for its sleek design, exceptional flavor production, and ease of use. It includes a variety of devices tailored to meet different vaping preferences. This series is particularly noted for its pod systems, which combine the convenience of traditional e-cigarettes with the advanced technology of modern vape mods. Let's dive into four prominent tanks in the Caliburn series: G2, G3, GK2, and X.

1. UWELL Caliburn G2


The Caliburn G2 is a versatile and user-friendly tank designed to deliver an excellent mouth-to-lung (MTL) and restricted direct-to-lung (RDL) vaping experience. It features a compact design, making it portable and easy to use.

Key Features

  • E-Liquid Capacity: 2ml
  • Adjustable Airflow: Allows users to customize their draw
  • Top-Fill System: Easy refilling without removing the pod.
  • Pro-FOCS Flavor Technology: Enhances flavor production for a richer vaping
  • Replaceable Coils: Ensures longevity and cost-effectiveness.
  • Pod Options: Compatible with 0.8ohm and 1.2ohm pods.

How to Use

  • Fill the Pod: Open the top-fill cap and fill the pod with your favorite e-liquid.
  • Adjust Airflow: Turn the airflow control ring to your desired setting.
  • Install the Coil: Insert the coil into the pod and attach the pod to the device.
  • Prime the Coil: Allow the e-liquid to saturate the coil for a few minutes before
  • Start Vaping: Press the fire button or use the draw-activated feature to start

2. UWELL Caliburn G3


The Caliburn G3 builds on the success of its predecessors, offering improved performance and enhanced features. It is designed for vapers who seek a robust MTL and RDL experience with greater control and customization. The Caliburn G3 Pod Kit offers an integrated 900mAh battery, 25W max output, and delivers delicious flavor from 0.6ohm or 0.9ohm pods. The Uwell Caliburn G3 Pod Kit is a low-maintenance vape that is ideal for both beginners and experienced vapers alike.

Key Features

  • E-Liquid Capacity: 2ml
  • Adjustable Power Levels: Allows users to choose between different wattage settings.
  • Magnetic Pod Connection: Ensures a secure fit and easy pod
  • Leak-Resistant Design: Minimizes the risk of e-liquid leakage.
  • Type-C Charging: Faster charging for more convenience.
  • Pod Options: Compatible with 0.6ohm and 0.9ohm pods.

How to Use

  • Fill the Pod: Open the side-fill port and add e-liquid.
  • Select Power Level: Use the adjustment button to choose your preferred
  • Install the Pod: Secure the pod into the device using the magnetic
  • Prime the Coil: Let the e-liquid soak into the coil for a few minutes.
  • Vape Away: Use the fire button or draw-activation to begin vaping.


3. UWELL Caliburn GK2


The Caliburn GK2 is a stylish and compact pod system that offers a smooth and satisfying vaping experience. It is designed with simplicity in mind, making it perfect for beginners and those who prefer a straightforward device.

Key Features

  • E-Liquid Capacity: 2ml
  • Draw-Activated Firing: No buttons required, just inhale to vape.
  • Compact and Lightweight:Easy to carry and use on the go.
  • LED Indicator: Displays battery life and device status.
  • Replaceable Pods: Allows for easy switching between different
  • Pod Options: Compatible with 0.8ohm and 1.2ohm pods.

How to Use

  • Fill the Pod: Remove the pod and open the fill port to add e-liquid.
  • Insert the Pod: Place the filled pod back into the device.
  • Prime the Coil: Wait a few minutes for the e-liquid to saturate the coil.
  • Start Vaping: Simply inhale on the mouthpiece to begin vaping.


4. UWELL Caliburn X


The Caliburn X is the most advanced in the Caliburn series, offering a range of customizable features for an optimized vaping experience. It is designed for those who want maximum control over their device.

Key Features

  • E-Liquid Capacity: 2ml
  • Adjustable Wattage: Fine-tune your power output for different vaping
  • OLED Display: Shows important information such as battery life, wattage, and coil resistance.
  • Top-Fill Design: Convenient and mess-free refilling.
  • Advanced Chipset: Ensures stable performance and multiple safety
  • Pod Options: Compatible with 0.8ohm and 1.2ohm pods.

How to Use

  • Fill the Pod: Open the top-fill cap and add your e-liquid.
  • Adjust Wattage: Use the buttons and OLED display to set your desired wattage.
  • Install the Pod: Place the pod into the device securely.
  • Prime the Coil: Allow time for the coil to absorb the e-liquid.
  • Begin Vaping: Press the fire button and enjoy your customized vaping

Comparing the Caliburn G2, G3, GK2, and X

  • Design and Portability: The GK2 is the most compact and lightweight, making it ideal for on-the-go vaping. The G2 and G3 offer slightly larger designs with more features, while the X is the most advanced with a larger size due to its OLED display and adjustable wattage.
  • Customizability: The Caliburn X offers the most customization with its adjustable wattage and OLED display. The G3  also provides adjustable power levels, while the G2 focuses on simplicity with adjustable airflow. The GK2 is the simplest, designed for ease of use without additional settings.
  • E-Liquid Capacity: All four models have a 2ml e-liquid capacity, ensuring consistent performance and
  • Firing Mechanisms: The G2, G3, and X offer both button-activated and draw-activated firing mechanisms, while the GK2  relies solely on draw-activation for simplicity.

Choosing the Right Pod (Ohm) for Your Device

The choice of pod (ohm) is crucial for optimizing your vaping experience. Here’s how to choose the right ohm pod for your device:

  • Caliburn G2: Compatible with 0.8ohm and 1.2ohm pods. Use 0.8ohm for a warmer vape with more vapor, and 1.2ohm for a smoother, tighter draw.
  • Caliburn G3: Compatible with 0.6ohm and 0.9ohm pods. Choose 0.6ohm for a stronger throat hit and 0.9ohm for a balanced MTL
  • Caliburn GK2:Compatible with 0.8ohm and 1.2ohm pods. 0.8ohm provides a more intense flavor, while 1.2ohm offers a milder vape.
  • Caliburn X: Compatible with 0.8ohm and 1.2ohm pods. Select 0.8ohm for more vapor production and 1.2ohm for a less intense, smoother vape.


The UWELL Caliburn series offers a range of high-quality devices that cater to different vaping preferences and needs. Whether you’re a beginner looking for simplicity with the GK2, an intermediate vaper seeking adjustable power with the G3, or an advanced user wanting maximum control with the X, there is a Caliburn device for you. Each model is designed with user convenience and optimal performance in mind, making the Caliburn series a top choice for vapers worldwide. When choosing the right pod, consider your vaping style and the type of e-liquid you prefer to get the best experience.



l Nicotine Salt (10/20mg): Mainly used for devices with 10 -50 wattage that  use a pod system:Uwell Caliburn A2, A2S,G,G2  GK2, SMOK Nord 5.

l Freebase Nicotine (3/6mg): Mainly used for devices with 50 to 100 wattage that use a tank system: Geekvape Aegis L200

Open liquid systems have a HIGHER chance of leakage compared to disposables  and closed pods.

Do not use nicotine salt in the tank system because it has lower density thus will cause leakage.

You can use freebase nicotine in the pod system but it won't have enough power to push out the flavour 100%


Visit our Youtube, learn how to refill E-Liquid:

How to refill your UWELL pod