Gamiss offers the Lenovo Heart Rate Monitor for $32.68. Coupon code "MAYNEW32" cuts it to $19.80. Even better, free shipping applies. It features Bluetooth 4.2, 0.91" display, compatibility with iOS and Android, select remote phone controls, heart rate monitor, pedometer, and sleep monitor. Deal ends June 24.

Note: This item ships from China and may take two to five weeks to arrive.