Get precise heart rate info without the constriction of a chest strap. New technology lets this wrist unit deliver more accurate readings than traditional strapless monitors. On its own, the Alpha is basic and simple to use. If you’re an advanced athlete, its Bluetooth Smart connectivity lets you access many aftermarket apps for sophisticated training.
- Optical heartrate sensors measure changes in blood volume under the skin, and work best when worn snuggly, 1 to 3 finger-widths above your wrist bone
- Built-in motion detector compensates for body movements, to maintain accurate readings through vigorous walking and running
- Continuous heart rate display
- User settable heart rate zones with audible and visual alerts. Tri-colour LED is blue when your heart rate is too low, green when you are in your zone, and red when your heart rate is too high
- Data review includes total exercise time, average heart rate, and time in zone for timed sessions
- Compatible with smartphones running Bluetooth 4.0 and corresponding apps
- USB charger with magnetic alignment
- Charge time approximately 1 hour
- Water resistant to 30m (Buttons not to be pressed under water. Cold water may affect heart rate accuracy.)
