Product | Differences in Configuration and Indicator Methods: Three UWELL G5 Series Devices Launch on U.S. and U.K. Channels

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Key Takeaways

• Three G5 Lite models launched on U.S. and U.K. channels: UWELL has introduced the Caliburn G5 Lite, G5 Lite SE, and G5 Lite KOKO, positioned as open-system e-cigarettes, priced at approximately US$11.99–12.99.
• Differences center on form factor and status indication: The SE and Lite use a bar-style design, while the KOKO adopts a box-style form factor; battery status is shown via a four-segment gradient indicator (SE emphasizes real-time status) or a breathing light.
• Feature-level differentiation: Among the three, only the G5 Lite explicitly lists stepless airflow control; the other two do not.
• Core specifications are aligned: All feature 3ml capacity, GPP pod compatibility, 8 color options, a 1600mAh battery with Type-C fast charging, and a 35W max output.
• Channel availability and compliance status diverge: The products are already listed on e-commerce channels in both markets; the MHRA database shows all three were published on November 26, 2025 under the “Kit” category and are eligible for compliant sale in the U.K., while FDA PMTA marketing authorization has not been granted as of publication.

2Firsts, December 10, 2025 ——2Firsts has noted that e-cigarette brand UWELL has recently launched its Caliburn G5 open-system lineup on U.S. channels, including the Uwell Caliburn G5 Lite, Uwell Caliburn G5 Lite SE, and Uwell Caliburn G5 Lite KOKO, priced at approximately US$11.99 to US$12.99.

Indicator/Breathing Lights Display Status; G5 Lite Offers Stepless Airflow Control

2Firsts has compiled parameter information for the three new products in the Uwell Caliburn G5 lineup—G5 Lite, G5 Lite SE, and G5 Lite KOKO—as shown in the charts below.

Based on the specifications, the three products mainly differ in form factor, status indication method, and feature details.

In terms of design, both the G5 Lite SE and G5 Lite adopt a bar-style body, measuring 29.4×17×113.8mm and 30.2×18×115.4mm, respectively. The G5 Lite KOKO uses a box-style body, sized 86.55×45.5×18.9mm.

For status indication, the battery display solutions vary: the G5 Lite SE and G5 Lite are labeled with a “four-segment gradient battery indicator (real-time battery status)”, while the G5 Lite KOKO uses a breathing light to display battery status.

On feature configuration, the G5 Lite additionally offers stepless airflow control, while the other two models do not list this feature. 2Firsts also noted that GEEKBAR recently promoted a hookah-style disposable e-cigarette HOOKAH X on its official website, claiming support for “Stepless/Infinite Control”; the website states the product allows continuous adjustment across different draw resistance/air intake ranges. 

In terms of core specifications, all three products are consistent: each has a 3ml e-liquid capacity, is compatible with Uwell Caliburn GPP Pod Cartridges, and offers 8 color options. They are all equipped with a 1600mAh battery and support Type-C fast charging, with a maximum power output of 35W.

Comparison with the G4 Series: Screenless Design Continues, Battery Capacity Increased

Compared with UWELL’s earlier Caliburn G4 series (CALIBURN G4 CLASSIC, CALIBURN G4 PRO KOKO, CALIBURN G4 PRO, CALIBURN G4 MINI, CALIBURN G4), all three new products in the G5 lineup do not include a screen. Instead, device status is displayed via an indicator light or breathing light.

In terms of baseline parameters, the G5 series increases battery capacity to 1600mAh. In the G4 series, the base model’s battery capacity is 1300mAh, while some models feature higher capacities (e.g., 1800mAh and 2000mAh) to support screen-related power needs.

Listed on U.S. and U.K. Channels; Published on the MHRA List

At present, the three Caliburn G5 series devices—Uwell Caliburn G5 Lite, Uwell Caliburn G5 Lite SE, and Uwell Caliburn G5 Lite KOKO—have been listed on U.S. online channel Vape Sourcing as well as U.K. online channel Vape Sourcing UK, among others.

On U.S. channels, both the SE and KOKO are priced at US$11.99, while the G5 Lite is priced at US$12.99. On U.K. channels, the KOKO and G5 Lite are priced at £9.99.

2Firsts checked the notification database of the U.K. Medicines and Healthcare products Regulatory Agency (MHRA) and found that UWELL CALIBURN G5 LITE KOKO, UWELL CALIBURN G5 LITE, and UWELL CALIBURN G5 LITE SE were published on November 26, 2025, under the category:
“Kit – Pack containing more than one different e-cigarette device and/or more than one different refill container/cartridge.”

This indicates the products have completed the U.K. compliance process and are eligible for legal sale in the U.K. market.

As of the time of publication by 2Firsts, the product has not been granted marketing authorization under the FDA’s Premarket Tobacco Product Application (PMTA) process.

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