UWELL, a global leader in next-generation vaping technology, proudly announces the worldwide release of the CALIBURN G4 Classic. Combining a decade of engineering mastery with bold innovation, this flagship device sets a new benchmark for premium pod systems. From aerospace-grade materials and millisecond-level smart sensing, to precision-tuned flavor delivery and dynamic ambient lighting, the G4 Classic delivers an elevated sensory vaping experience for discerning users worldwide.
Crafted from aero-grade high-strength TX aluminum alloy with an ultra-premium anodized finish, the G4 Classic undergoes countless micron-level CNC machining processes to achieve a zirconia-smooth surface that resists corrosion and wear. Its unibody winged streamline design seamlessly merges ergonomics with fluid aesthetics—from the palm-contouring curves to the recessed stepless airflow control—every detail reflects a decade of craftsmanship, resulting in a device that feels as natural as it looks exquisite.
The CALIBURN G4 Classic features a dual sensing system with both primary and backup sensors working in perfect sync. This millisecond-response technology delivers hardware-level reliability, achieving over 99.999% trigger accuracy and extending auto-draw durability by more than 300%, guaranteeing uninterrupted performance with every puff.
Boasting a maximum 35W output powered by a 1400mAh high-density battery, the CALIBURN G4 Classic delivers authentic flavor and strong performance in a compact design. Equipped with Pro-FOCS 4.0 Flavor Technology, it precisely captures the full profile of your e-liquid, reproducing both subtle notes and pure flavor of e-liquid, The U2 Anti-Leak technology and transparent e-liquid window provide added confidence, ensuring a clean, leak-free experience and effortless monitoring of e-liquid levels.
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A matrix of 14 RGB LEDs creates vivid, layered gradient effects that respond in real time with every draw. Inspired by the nostalgic glow of early e-cigarettes, this feature adds a sleek, contemporary edge. The lighting adapts to user input, delivering dynamic visual feedback, with intuitive controls for quick adjustments:
Battery level is indicated by color: emerald green for high, sapphire blue for medium, and ruby red for low.
The CALIBURN G4 Classic offers enhanced personalization with a dual-control design.
Dual Airflow System: Fine-tune your draw resistance using a stepless damping airflow control, designed for precise adjustment. The reversible cartridge fits in either direction, making installation quick and hassle-free.
Dual Activation System: Choose between the micro-pressure firing button (optimized at 255gf for tactile feedback) or instant auto-draw activation via responsive airflow sensing. Both options are engineered for comfort, reliability, and reduced user fatigue.
CALIBURN G4 CLASSIC is fully compatible with both previous and upgraded CALIBURN GPP cartridges. The upgraded cartridges are also compatible with the CALIBURN G3 series devices. Refills are quick and convenient, and the upgraded GPP cartridge can be refilled directly without removing it from the device.
The upgraded GPP cartridges also feature an improved ergonomic design, perfectly contoured to your mouth for an even more comfortable vaping experience.
The G4 Classic is CALIBURN’s definitive expression of perfection — a precision-crafted device and a collectible work of art. It reflects UWELL’s decade-long commitment to making excellent product.
Since its founding in 2015, UWELL has been dedicated to establishing itself as a global leader in the e-cigarette industry through technological innovation.
With 80 countries or regions and 42,000 stores covered, and 38,000,000 pieces of products sold, especially the CALIBURN series, UWELL has become a trusted and popular brand for those looking to switch from smoking to vaping for a healthier lifestyle.
In the vaping industry, our exclusive technologies set us apart. As of 2025, UWELL has successfully applied for more than 300 patents, totalling its intangible property rights to 630.
At UWELL, we celebrate every breath. We remain committed to delivering premium products and services to vapers worldwide.
