First Impressions

When I first unboxed the Caliburn G4, I was struck by its sleek design and lightweight feel. The device boasts a 0.85-inch color screen, a significant upgrade that adds a touch of modernity without compromising its compact nature. The inclusion of two vaping modes—Storm and Waves—piqued my interest, promising a customizable vaping experience.

Design & Build Quality

The Caliburn G4 maintains the minimalist aesthetic that the series is known for, with a few notable enhancements. The aluminum alloy body feels sturdy yet lightweight, making it ideal for on-the-go use. The clear-view juice window is a practical addition, allowing for easy monitoring of e-liquid levels. The device's dimensions (26.0mm x 15.7mm x 115.0mm) strike a balance between portability and functionality.

The 0.85-inch HD color screen is a standout feature, offering clear visibility of battery life, puff count, and vaping mode. The interface is intuitive, and the screen's brightness can be adjusted to suit different lighting conditions. The multi-functional control button simplifies navigation through the device's settings.

Performance & Flavor

Flavor delivery is where the Caliburn G4 truly shines. Equipped with Uwell's Pro-FOCS 4.0 flavor technology, the device offers a 35% increase in flavor satisfaction and cartridge lifespan compared to previous models. The kit includes two GPP pods: a 0.4Ω for restricted direct lung (RDL) vaping and a 0.9Ω for mouth-to-lung (MTL) vaping. Both pods deliver rich, consistent flavor, with the 0.9Ω pod providing a particularly satisfying MTL experience.

The dual vaping modes enhance the device's versatility:

• Storm Mode: Delivers a powerful, intense vape, ideal for those seeking a robust flavor hit.
• Waves Mode: Offers a smoother, more consistent vaping experience, perfect for extended sessions.

Adjustable airflow control further personalizes the experience. Users can fine-tune the draw by sliding the airflow valve or changing the pod's orientation, catering to both MTL and RDL preferences.

Battery Life & Charging

The Caliburn G4 houses a 1300mAh battery, providing ample power for a full day of moderate to heavy vaping. When it's time to recharge, the device supports 5V/2A fast charging via a USB Type-C port, reaching full charge in approximately 30 minutes. This quick turnaround minimizes downtime and keeps the device ready for use.

Pod & Coil Performance

The upgraded GPP cartridges are a significant improvement, featuring Uwell's U² technology—Ultrasonic Welding and U-shaped Channel Design—to enhance leak resistance and airflow performance. The side-fill system is user-friendly, allowing for mess-free refills without removing the pod. The ergonomic mouthpiece design adds to the overall comfort during use.

Compatibility with previous Caliburn G3 pods is a thoughtful touch, offering flexibility for users transitioning from older models.

User Experience

Day-to-day use of the Caliburn G4 is seamless. The device's compact size and lightweight build make it pocket-friendly, while the clear juice window and responsive auto-draw activation add to its convenience. The interface is straightforward, and the inclusion of a puff counter and adjustable brightness settings enhances usability.

One minor drawback is the absence of a dedicated fire button, which may require a brief adjustment period for some users. However, the auto-draw feature is highly responsive, and the device's overall performance compensates for this omission.

Final Thoughts

The UWELL Caliburn G4 is a commendable addition to the Caliburn lineup, offering significant upgrades in flavor delivery, user interface, and overall performance. Its combination of sleek design, customizable vaping modes, and enhanced pod technology makes it a strong contender in the pod system market.

Whether you're a seasoned vaper seeking a reliable daily driver or a newcomer looking for a user-friendly device, the Caliburn G4 delivers a satisfying experience with minimal compromises.

Pros & Cons

Pros:

• Exceptional flavor delivery with Pro-FOCS 4.0 technology
• Dual vaping modes (Storm and Waves) for customizable experience
• Quick 30-minute charging with 1300mAh battery
• Clear-view juice window for easy e-liquid monitoring
• Compatible with G3 and GPP pods
• Enhanced leak resistance with U² technology

Cons:

• Lack of a dedicated fire button may require adjustment
• Limited to 35W output, which may not satisfy high-wattage users
• Screen size, while functional, may be small for some users