bt4 0 ble smart heart rate bracelet

{"cid":"91222783","title":"IP67 Waterproof Smart Watch With TWS Pairing With Heart Rate Sensor For Android And IOS","imgUrl":"https:\/\/img.chinax.com\/nimg\/ec\/eb\/ffab38ab80ca7790e0f5cb4db775-200x200-1.jpg","attrs":{"Price":"USD 50 \/PC","Brand Name":"Rainbuvvy","Model Number":"GT100Pro","Minimum Order Quantity":"10 pcs","Delivery Time":"5-8 work days","Certification":"CE","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"100pcs per 5 days","Packaging Details":"13cm*10cm*7cm","Color":"black","Weight":"75g","Appearance material":"alloy+PC","Charging time":"2-3 hour","Life time":"7-10 Day","Waterproof Level":"IP67","Chipset":"Realtek-8763EWE"}}

{"cid":"91170326","title":"Silicone Bluetooth Wristband Activity Monitors Fitness Tracker Device BLE 4.0","imgUrl":"https:\/\/img.chinax.com\/nimg\/c1\/cc\/060808032375189578e66cf92612-200x200-1.jpg","attrs":{"Price":"Negotiation","Model Number":"LWD-B005","Minimum Order Quantity":"Negotiation","Delivery Time":"30days","Certification":"CE,Rohs","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union,PayPal","Supply Ability":"10,000pcs per month","Packaging Details":"Color box,60pcs\/carton,carton size:34x28x30cm,G.W.8.0KG","Material":"ABS & PC for main device, TPU for Bracelet, Stainless Steel for heart rate inductive panel","Bluetooth":"4.0 BLE","Display":"0.91\u2019\u2019 OLED with touch screen","Battery":"90mAh Lithium polymer rechargeable battery","Color":"Red,Grey,Black","Sensor":"Bosch 3D acceleration sensor"}}