Maximum clarity, full-gas capability, and expedition-level reliability.

The Descent X50i delivers a bold 3-inch touchscreen display, integrated dive light, SubWave sonar, and full nitrox, trimix, and multi-gas switching. With CCR support, a 3-axis tilt-compensated compass, and built-in mapping, it’s designed for divers who demand advanced capability and high-end visibility underwater.

Key Benefits

• Oversized display 3" color touchscreen displays dive data, compass, and maps with exceptional clarity
• Full-gas capability Supports nitrox, trimix, and multiple-gas switching during a dive
• CCR-ready Integrated closed-circuit rebreather mode with customizable setpoints
• Underwater communication SubWave sonar enables diver-to-diver messaging and tank-pressure monitoring when paired with compatible transmitters
• Integrated dive light Adds illumination for signaling or navigating darker environments
• 3-axis digital compass Tilt-compensated, easy-to-read compass built directly into the interface
• Advanced navigation Multi-band GNSS with preloaded dive-site mapping and surface tracking
• Premium durability Sapphire crystal, metal buttons, and 200 m depth rating

Key Specifications

• Display 3.0" color touchscreen (640 × 360 resolution)
• Weight ~253 g device only; ~280 g with band
• Depth Rating 200 m / 20 ATM
• Algorithm Bühlmann ZHL-16C with configurable Gradient Factors
• Dive Modes Air, Nitrox, Trimix, CCR, Gauge, Apnea, and multi-gas
• Gas Support Nitrox up to 100%, trimix blends, and up to 11 gas switches
• Compass Integrated 3-axis tilt-compensated digital compass
• Battery Life Up to ~16 hours in dive mode (varies by brightness)
• Connectivity SubWave sonar, Bluetooth, Wi-Fi, ANT+
• Sensors GNSS, compass, depth sensor, accelerometer, gyroscope, barometer
• Construction Sapphire lens, metal buttons, reinforced polymer housing

Combining a massive display with multi-gas capability, CCR support, advanced navigation, and SubWave communication, the Descent X50i sets a new standard for divers who want high-end visibility and mission-ready performance on every dive.