Unlike the Fitbit, this popular smartwatch tracks blood pressure — and it's down to $24
Amazon.com: Iaret Smart Watch for Women, Dial Answer Calls Smartwatch for Android iOS Phones Waterproof Activity Fitness Tracker with 1.32" Full Touch Screen 20 Sports Modes Pedometer Heart Rate Sleep Monitor :
Can Luxury Smartwatches Really Compete With the Apple Watch?
SENBONO NY20 Smartwatch Fitness Tracker Black Silicone
Smart watches for men,NK20 Smart Watch Activity Bracelet, with Bluetooth Call Function and Bluetooth SMS, with Heart Rate Monitor, Calorie Monitor, Sleep, Full Touch Sports Watch, Black - Walmart.com