blood oxygen smartwatch with emergency sos

{"cid":"91222406","title":"E530 Smart Watch Sleep Monitoring Heart Rate Blood Pressure Blood Oxygen Smartwatch 1.91 Inch","imgUrl":"https:\/\/img.chinax.com\/nimg\/0b\/f0\/f948e92457f6c9bf00dbbd16e601-200x200-1.jpg","attrs":{"Price":"Get Best Price","Brand Name":"Shunxiang","Model Number":"E530","Minimum Order Quantity":"100pcs","Delivery Time":"5-8 Work Days","Certification":"CE,RoHs","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union, PayPal, Alibaba Trade Assurance, etc.","Packaging Details":"Color Box","Product Name":"E530 Smart Watch","Display":"1.91-inch 240*284 HD touch screen","Compatible System":"Android 5.0 and IOS 9.0 above version","Bluetooth":"5.1BLE","CPU":"GR5515","PPG chip":"SFH2201","Battery Capacity":"280mAh","Gravity sensor":"KXTJ3-1057","Charging Type":"Magnetic suction charging","Charging Time":"About 3-4H"}}