Health at a glance – Advanced optical sensor records heart-rate, blood-oxygen and sleep stages (deep/light/awake) overnight; daily report on Da Fit app helps you adjust fasting & hydration during Ramadan.Calls & chats on your wrist – Built-in mic & speaker let you answer/make clear calls and receive WhatsApp, Instagram or SMS alerts; pairs in seconds with iPhone, Samsung, Huawei, Android 5.0+ & iOS 9.0+.Bigger view, two looks – 1.83" HD screen with 200+ cloud dials; rose-gold stainless-steel + black silicone bands swap in…