Shearwater Tern

$650.00 - $775.00

The Shearwater Tern and Tern TX models redefine diving convenience and versatility for sport divers. Incorporating a compact design with advanced features, these dive computers, especially the Tern TX with its transmitter-enabled capability, provide unparalleled functionality. Their enhanced visibility, user-friendly interface, and compatibility with multiple diving modes, make them an essential tool for divers seeking reliability and ease of use. 

The Tern and Tern TX feature a 1.3” AMOLED screen with clear visibility in various lighting conditions. Their watch-style design and high-resolution display ensure easy access to vital diving data.

The Tern TX stands out with its ability to connect to up to four Swift transmitters and includes a digital compass. Both models support Air, Nitrox, 3 Gas Nitrox, Gauge, and Freedive modes.

Designed and Built in Canada and depth-rated to 120 meters, these computers meet EN standards for dive compliance. They come with Shearwater’s new Remora™ quick connect bands and webbing straps, offering easy customization with various strap lengths and colors.

Dive Modes:

  • Air (For recreational diving)
  • Nitrox (Single gas up to 40%)
  • 3 Gas Nitrox (Up to 100% O2)
  • Gauge (Depth, time, resettable stop watch function)
  • Freediving (Configurable sampling rates and alarms)


  • Decompression computer
  • Air Integrated (Tern TX Model Only)
  • Connects up to 4 Transmitters (optional) (Tern TX Model Only)
  • 3 Axis, tilt compensated, digital compass (Tern TX Model Only)
  • Bluetooth wireless technology
  • Switchable viration alerts
  • Upgradeable Firmware
  • 316 Stainless Bezel & Buttons
  • 22mm Strap Size with quick connect (one long and one short strap included)
  • Ballistic Nylon Polymer Case


Screen Resolution 360 x 360
Display Type Full Colour AMOLED
Screen Brightness Minimum 300 nits, Typical at 350 nits
Display Size 3.30cm / 1.3"
Toughened Glass Window Yes
Battery Type Rechargeable Li-ion Battery
Factory Replaceable
Battery Life up to 20 Hours (Medium Brightness)
up to 6 months (Standby)
Wireless Charging Station Yes
Number of Gases 3 OC
Depth Rating 120m / 394ft
Dive Log Capacity (10 second rate) 500 Hours
Size (Dive Computer) Diameter - 50mm
Thickness - 16mm
Weight (Dive Computer) 100g
Product Comparison Table Learn More