Brand Fastrack Bluetooth Yes App Support Fastrack Reflex World Model Fastrack Reflex Hello Dimensions 43 x 38 x 12 mm Weight 143 g Display 1.69 Inch HD, 240 × 280 Pixels, Full Touch Sweat & Water Resistance Dustproof Connectivity Bluetooth Other Features /Info Receive & Dial Calls, Heart Rate, Blood Oxygen SpO2, Sleep Tracking, Music Control, Find My Phone, Accelerometer