GearNews - RATIO iDive Wristwatch Computers
Models feature a full-matrix screen, rechargeable batteries, 3D compass, and apps including chronograph, gas-analyser, pitch-and-roll, moon phase and manometer, all boasting a depth-rating of 220m. The range includes the iDive Easy, Deep, Tech and Reb (rebreather) models. They come in either watch or jewel versions, the latter having Swarovski crystals placed around the outer edge of the face. The Ratio iDive range uses Buhlmann ZHL-16 or VPM-B algorithms and prices range from £375 for the Easy to £899 for the Reb Jewel.