Model Name X7 44 mm🔥* ▶️ *Bluetooth 4.0 + 5.0 LE* ( Dual Connectivity ) ▶️ *Optical Heart Rate Sensor* With Dynamic Heart Rate Real Time Monitor ▶️ Different *Sports Activities* To Calculate *Heart Rate / Calorie Count* ▶️ *BT Calling* / Message / WhatsApp / WeChat Notification ▶️ Metallic Aluminum Body ▶️ *Battery Backup Standby Time Upto 1 - 2 Days** ▶️ *Charging Time Upto 2 to 3 Hours* ▶️ *Square 2 Pin Box Charger* Included In the Box - calling 💲 ₹-950 COD AVAILABLE 🙏🙏 ⌚*Don't compare with cheap quality*🎧🤩 - waterproof model - u can set your wall paper