The PoolMate2 features all our patented lap-counting technology with the addition of an open water mode to track swims in lakes, the sea or rivers. With a 2 year battery life, a crystal glass face, large clear display and chrono mode for other activities it's a great watch, at a great price. In the pool laps strokes distance speed efficiency duration sets rest time calories In open water strokes distance speed efficiency duration sets rest time calories Out of the water 99 set chrono mode for timing •Works with all major strokes straight out of the box •Stores over 50 sessions for recall, records individual sets and total session data •Swim pedometer mode for open water swimming (calibration recommended prior to use) •Pools over 18m (yards too), Chrono mode for timing other sports •Water resistant to 50m, 24 hour clock and alarm Spec: The PoolMate2 is available in different colour options - black, grey, blue and purple The black model comes with reverse display (white characters on black display) and does not have a back light. Grey, blue and purple models have standard display and back light. Battery life around 24 months CR2032 Weight 41g Diameter of face 40mm Strap fits wrists from 14.5 to 21.5cm 12 month guarantee