[Custom Watch Faces] A variety of pre-set personalized watch faces meet users' different usage needs. You can also customize the watch face with an image of your choice [Wireless Music Playback]: Zeblaze GTS 2 can be stored independently, you can easily fill your favorite playlists, control music right from your wrist and take support Bluetooth headsets. You can use your smartwatch to listen to music while exercising [7/24 Heart Rate Monitoring]: Zeblaze GTS 2 is equipped with an advanced optical heart rate sensor. The smartwatch can perform 24-hour uninterrupted high-precision heart rate detection, always escorting your health [Scientific sleep]: Zeblaze GTS 2 smartwatch supports deep sleep detection, including sleep time, deep sleep and light sleep. It can provide you with sleep quality analysis and improvement suggestions to help you achieve a healthier sleep state. [Main Features]: standalone music player, Bluetooth calls, 24h heart rate monitoring, Spo2 level measurement, blood pressure monitoring, 15 goal-based exercises, sleep quality monitoring, step tracking, step tracking calories burned,Daily steps goal,real-time pace and distance,goal celebrations,movement reminders,smartphone notifications,weather forecast,alarm clock,phone finder,etc Specification Model: Zeblaze GTS 2 Bluetooth Version: Bluetooth 5.0 Chip :Telink 8250 Water resistant: IP67 Screen size: 1.69 inch Screen type: HD color touch screen Resolution: 240*280px Compatible OS: Android and iOS Compatibility: Android 4.4 / iOS system 9.0 and above APP: Funkeep System language: English, Japanese, French, German, Russian, Italian, Portuguese, Spanish, Thai, Greek, Turkish, Dutch APP language: English, Thai, Russian, Spanish, Port English, Japanese, French, German, Italian Message broadcast language: English, Thai, Russian, Spanish, Portuguese, Japanese, Korean, Turkish, German, French, Italian, Arabic, Hindi, Hebrew Sensor: heart rate sensor, sensor proximity, accelerometer. Battery type: Polymer lithium battery Battery capacity: 210 mAh Standby time: 15 days (power saving scenario); 7 days (typical usage scenario) Charging time: about 1.5 hours Alert type: Vibration Bezel material: ABS, PC Band material: TPU Weight and size: Dial size44.5*37* 10.5mm Product Weight: 36g Package Content: 1 x Zeblaze GTS 2, 1 x Cable, 1 x User Manual (English, Deutsch, Espaol, Portugus, Franais, Japanese.)