The Polar H10 was my favorite option out ... For less than $40, the Coospo H6 is a pretty solid heart rate monitor. It's not fancy by any means, but it'll get the job done for most people.

Indicates whether the model employs a chest strap mounted sensor that transmitts ... takes continuous heart rates from the user's wrist. The Polar FT1 is part of the Heart-rate monitors test ...