Uwell Caliburn G4 Pod Kit
The Uwell Caliburn G4 Pod Kit is the next evolution in the iconic Caliburn series, combining PRO-FOCS 4.0 flavour technology with a powerful 1300mAh battery and up to 35W of output. Featuring a vivid 0.85 inch HD colour display, dual vaping modes, and a 2ml pod with adjustable airflow control, the G4 is a compact and refined pod kit built for vapers who demand precision and flavour. Available in nine premium colour finishes and charged via USB-C, it delivers consistent, leak-resistant performance every time.
What Makes the Caliburn G4 Stand Out
PRO-FOCS 4.0 Flavour Technology
Uwell's most advanced flavour system delivers a 35% increase in flavour satisfaction over previous generations, producing rich, accurate, and consistent taste with every draw.
35W Output and Dual Vaping Modes
Choose Storm Mode for a more intense, direct lung draw, or Waves Mode for a smooth and measured mouth-to-lung experience. Both modes are fully optimised for the CALIBURN GPP coil system.
1300mAh Battery with Type-C Fast Charging
A substantial 1300mAh battery keeps you vaping throughout the day, while 5V/2A USB-C charging replenishes the battery in as little as 30 to 45 minutes.
0.85 Inch HD Colour Display
A bright, high-definition screen shows your current mode, puff count, and battery level at a glance. Multiple UI themes let you personalise the display to match your style.
Dual Adjustable Airflow System
Fine-tune your draw resistance using both the side-mounted slide valve and the pod rotation system, giving you precise control from tight MTL to a more open, restricted DTL draw.
U2 Anti-Leak Technology
Ultrasonic welding combined with a U-shaped internal channel design virtually eliminates leaking, keeping your device and pocket clean even with prolonged use.
Four Reasons to Make It Your Next Pod Kit
A Brand Built on Flavour and Innovation
Founded in 2015, Uwell has grown from a specialist coil manufacturer into one of the most respected names in the vaping industry. The brand made its reputation with the original Caliburn, which became the world's best-selling pod kit, and has since continued to push the boundaries of flavour and performance through continuous R&D investment. Uwell's engineering-first approach is evident across every product: from the precision of the CALIBURN GPP coil platform to the leak-resistant U2 ultrasonic welding process. Today, Uwell products are sold in over 100 countries and trusted by millions of vapers who prioritise taste above everything else.
Explore More Uwell Caliburn Pod Kits
How to Use the Uwell Caliburn G4
Step 1: Fill Your Pod
Remove the pod from the device and locate the side-fill port. Fill with your chosen e-liquid up to the 2ml maximum, then firmly reseal the fill port to prevent leaks.
Step 2: Prime the Coil
After filling, wait 5 to 10 minutes before vaping to allow the e-liquid to saturate the coil mesh. This prevents dry hits and extends the coil's lifespan significantly.
Step 3: Install the Pod
Slide the filled pod back into the device until it clicks securely into place. Rotate the pod to set your preferred airflow position before vaping.
Step 4: Charge the Device
If the battery is low, connect the USB-C cable and charge at 5V/2A. The screen will display the charging status, and a full charge takes approximately 30 to 45 minutes.
Step 5: Select Your Mode
Press the multi-function button to toggle between Storm Mode for a more powerful, direct draw and Waves Mode for a smoother, more measured vaping experience.
Step 6: Adjust Airflow
Use the side slide valve to fine-tune airflow resistance. Combined with pod rotation, this gives you a wide range of draw styles from tight MTL to restricted direct lung.
Step 7: Inhale and Vape
Once set up, simply inhale from the mouthpiece. The G4 supports both button-activated and auto-draw firing, so you can choose whichever method feels most natural.
⚠️ Before You Buy
- This product is for adults aged 18 and over. Age verification is required at checkout.
- The Caliburn G4 does not include e-liquid. E-liquid is sold separately.
- The pod capacity is 2ml in compliance with UK TPD regulations.
- Contains no nicotine. Nicotine is present only when used with nicotine-containing e-liquid.
- Keep away from water, direct sunlight, and extreme temperatures.
- Keep out of reach of children and pets at all times.
Why Buy From Hulme Vapes?
Frequently Asked Questions
What pods are compatible with the Uwell Caliburn G4?
The Caliburn G4 is compatible with all CALIBURN GPP cartridges, including the upgraded versions. It also accepts pods from the Caliburn G3 series, giving you a wide range of coil resistance options including 0.4ohm, 0.6ohm, 0.9ohm, and 1.2ohm.
What is the difference between Storm Mode and Waves Mode?
Storm Mode delivers a more powerful, intense draw suited to direct lung vaping with higher VG sub-ohm e-liquids. Waves Mode provides a smoother, more measured pull that works well with mouth-to-lung vaping and nicotine salt e-liquids.
How long does the 1300mAh battery last?
Battery life depends on your vaping habits and selected mode. Most users will comfortably vape through a full day on a single charge in Waves Mode. Storm Mode at higher wattage will consume the battery more quickly. Charging takes around 30 to 45 minutes via USB-C at 5V/2A.
Does the Caliburn G4 come with e-liquid included?
No. The Caliburn G4 kit includes the device, two replacement pods (0.4ohm and 0.9ohm), a USB-C charging cable, and a user manual. E-liquid is sold separately and is not included in the kit.
What nicotine strengths work with the Caliburn G4?
For the 0.9ohm MTL pod, nicotine salt e-liquids between 10mg and 20mg are recommended. For the 0.4ohm RDTL pod, lower nicotine freebase liquids between 3mg and 6mg are more appropriate. Always match your nicotine strength to the pod resistance for the best experience.
Is the Uwell Caliburn G4 TPD compliant?
Yes. The Caliburn G4 pod system has a 2ml capacity, which is fully compliant with UK Tobacco and Related Products Regulations (TPD). All Uwell products sold at Hulme Vapes meet current UK regulatory requirements.

