Shearwater Tern TX Dive Computer

The Shearwater Tern TX is the perfect blend of compact design, advanced technology, and legendary reliability. Built for recreational divers who want premium performance without unnecessary complexity, the Tern TX features an easy-to-read full-color AMOLED display, optional wireless air integration, and a tilt-compensated digital compass—all in Shearwater's smallest dive computer.

Designed and manufactured in Canada, the Tern TX is depth-rated to 120 meters (394 feet) and supports multiple diving modes, making it an excellent companion whether you're exploring tropical reefs, diving wrecks, or advancing your training.

Key Features

• Brilliant full-color, high-contrast AMOLED display
• Optional wireless air integration
• Monitor up to 4 transmitters
• 3-axis tilt-compensated digital compass
• Wireless rechargeable lithium-ion battery
• Bluetooth® connectivity for easy dive log transfers
• Switchable vibration alerts
• User-upgradeable firmware
• Durable 316 stainless steel bezel and buttons
• Rugged ballistic nylon polymer case
• Quick-release 22mm Remora straps (includes one standard and one short strap)

Dive Modes

• Air
• Nitrox
• 3-Gas Nitrox
• Gauge
• Freediving
• Avelo Mode (unlock code required)

Technical Specifications

• Display: 1.3" Full-Color AMOLED
• Resolution: 360 × 360 pixels
• Brightness: 300–350 nits
• Depth Rating: 120 m / 394 ft
• Battery: Internal rechargeable lithium-ion
• Battery Life: Up to 20 hours of diving or 6 months in standby
• Charging: Wireless charging dock with USB-C cable
• Dive Log Capacity: 500 hours (10-second sampling)
• Size: 50 mm diameter × 16 mm thick
• Weight: 100 g

What's Included

• Shearwater Tern TX Dive Computer
• Wireless Charging Station
• USB-C Charging Cable
• Remora Quick Release Band
• Additional Short Wrist Band
• Screen Protector
• Product Information Guide

Available in Black, Limited Edition Blue, and Limited Edition Purple.