Features: Track you heart rate, blood pressure, calories, sleep and more (see below). Compatible With: iOS, android and smart watches – enable Siri or AI! Colours: In a choice black, white, pink and gold. Earbuds: Get a 2-in-1 smart watch with built-in earbuds and charging case! Use: Earbuds optimised for smart phones and smart watches, so you’ve got the best of both worlds! Bluetooth, MP3 & TWS Enabled: Features Bluetooth 5.0, MP3 and TWS!