When it comes to value for money, this is the tracker. The Mi Band 1s Pulse monitors steps, distance, calories and sleep patterns. The heart rate monitor can be observed in real time, on-demand. With a battery life of 30 days, this device is built to last. The band also features smart notifications, letting users know when they have an incoming call or text. It features a lightweight silicone band and can be synced with a Mi Fit app, via Bluetooth.