<p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">How to Power On: </span></strong></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">This smart bracelet features screenless and buttonless design and needs to be charged to power on. After receiving the package, it is recommended to charge it for half an hour before attempting to turn it on.</span></p><p><br/></p><p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Smart bracelet function:</span></strong></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Heart rate monitoring, blood oxygen monitoring, stress monitoring, heart rate variability, female physiological cycle, shake and take photos, multiple exercise modes, sleep monitoring (sleep time, sleep quality), step count, synchronize data to APK/APP</span></p><p><br/></p><p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Hardware parameters:</span></strong></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Main control: OM6626B</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Material: zinc alloy+Epoxy resin</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Device Size: 43*9.6*5.6mm</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Bluetooth version: Bluetooth 5.3</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Battery capacity: Polymer lithium battery 18 mAh with battery protection IC</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Working hours: About 3-5 days</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Charging time: 2H</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Acceleration sensor: SC7A20H</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Heart rate sensor: HX3918</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Charging cable: magnetic suction cable charging with patch protection IC</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Waterproof grade: 5ATM life waterproof</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Charger requirements specifications: Charging 1A or below</span></p><p><br/></p><p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">APP/APK download method (APP Download):</span></strong></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">QR code scan download and install: Nx Wear</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">APP name: Nx Wear</span></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">Compatible system: Android 4.4 and above, iOS 9 .0 and above</span></p><p><br/></p><p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Packaging includes:</span></strong></p><p><span style="font-size:16px;font-family:arial, helvetica, sans-serif">smart bracelet, free red band, charging cable, instruction manual, original box</span></p>