| Billow XSB70. Device type: Wristband activity tracker, Product colour: Turquoise, Band colour: Turquoise. Battery life: 15 day(s), Battery technology: Lithium, Battery capacity: 70 mAh. Weight: 28 g, Width: 20 mm, Depth: 242 mm. Mobile operating systems supported: Android 4.3, Android 4.4, Android 5.0, Android 5.1, iOS 7.0, iOS 7.1, iOS 7.2, iOS 8.0, iOS 8.1,.... Connectivity technology: Wireless | |