Amazon with GoodPro has the HalfSun IP67 Waterproof Fitness Tracker Activity Monitor with Heart Rate Monitor, Blood Pressure Monitor and Sleep Monitor (5 color options) for $38 - 6% off coupon (check "Apply coupon" box) - $13 off with code IHHH3CHB [Exp 11/25] = $22 with free shipping on $25+ or with Prime.