ble 5 2 waterproof fitness tracker watch

{"cid":"91222406","title":"NX18 Pro 1.5-inch AMOLED Smart Watch with GPS Tracker and IP68 Waterproof","imgUrl":"https:\/\/img.chinax.com\/nimg\/09\/f6\/681fe9654ec71871ab146f459c3d-200x200-1.jpg","attrs":{"Price":"$22.90-23.50 \/ piece","Minimum Order Quantity":"50 pieces","Brand":"OEM","applicable people":"Male","item shape":"ROUND","screen size":"\u226550mm","waterproof standard":"IP68","battery life":"Up to 4 days","feature":"Touch Screen, APP Control, GPS, bluetooth","function":"Remote Control, Sleep Tracker, Speed Measurement, Fitness Tracker, Passometer, Call Reminder, Answer Call, Push Message, Mood Tracker, Message Reminder, Dial Call, Heart Rate Tracker, Activity Tracker, Social Media Notifications, Calorie Tracker, Multispor","display type":"AMOLED","screen resolution":"466*466","Operating System":"Linux, Android, IOS","camera":"No Camera","Charging Method":"Magnetic","private mold":"NO","Place of Origin":"China","Product Name":"NX18 Pro","Chip":"RTL8763EWE-VP","Heart Rate Sensor":"HX3918","Waterproof":"IP68","Screen Size":"1.5-Inch AMOLED","Standby time":"About 30days","Bluetooth Version":"BLE 5.2","Compatible":"IOS9.0+ \/ Android4.4+","APP":"Fitcloudpro","Battery Capacity":"400mAh"}}