Key Features

Hyper-Accurate
Employs patented optical sensor technology for highly accurate monitoring and measurement. The accurate measurement of exercise intensity is an area where many other products fall short, but Rhythm TM excels.

No Chest Strap Required
“Breathable” neoprene armband design means greater comfort and ease of use. Comes with both a large and small armband.

Fitness App-Friendly
Works with the most popular fitness apps  - over 200 in all.

8 Hour Battery Life
Extended use rechargeable battery allows you to workout for up to 8 continuous hours, then simply plug it in with the charging cable (included) to recharge the Rhythm TM for your next use.

Works With Virtually Any Device
Great for use with smartphones, tablets, smart and sport watches, exercise equipment and many other devices that support Bluetooth Smart or ANT heart rate data.

Sweatproof & Waterproof
IP67 sweat and waterproof construction means the same great accurate performance in both dry and wet conditions. Rhythm TM can even be submerged up to 1 metre.

100 FT. Range
Allows you to wirelessly workout up to 100 feet from your mobile device or exercise equipment.

Green/Yellow Optical Sensor Array Provides Superior Measurement With All Skintones
Better than monitors and watches that employ only green sensors.