Mio Ultimate Heart Rate Watch with Chest Strap Offers continuous heart-rate monitoring with an analog chest strap Calculates average and overall highest heart rate during a workout; displays percentage of maximum heart rate based on personal stats Indicates in-and-out of target heart rate during a workout; displays time above/below/in target zone 100-hour stopwatch, 16 lap timers, 12/24-hour clock option Interval/ count down timer of 99h59m59s (settable to the second); average lap time