The Ekho FiT-8 is started with the touch of a button and is as simple as it gets, A target zone and stopwatch make it designed for everyone at every fitness level, Heart rate functions include: current heart rate, target zone, out of zone alarm, and ECG accuracy, Watch functions include: time of day, date, stopwatch, light, 15 laps or file storage, water resistant, interfaces with heart rate interactive exercise equipment, and user changeable batteries in transmitter and watch, SKU: FABE1051