Measures pulse, saves heart rate recording and lap record. Can be personalized with gender, weight, age, height, target calorie consumption, resting and upper heart rate. Black and green anti-static, shock proof 42mm case. Dual time. Digital display with easy read digits and moonglow EL light. Functions include: stopwatch, countdown timer, hourly chime and lap memory. 18mm PU band. 100m water resistant.