How to use Bluetooth-compatible call: The Bluetooth-compatible call function requires dual Bluetooth-compatible signal support, so you need to connect twice according to the instructions: -- Scan the QR code on the manual through the mobile phone browser, download the dedicated app, and turn on the mobile phone Bluetooth-compatible. Find and connect the device in the app. Confirm binding -- Find the device in the Bluetooth-compatible of the mobile phone (check the device name in the watch to check the device information), and select the connection and pairingDescription: Name: Smart Watch Watch size: 44 x 38 x 11mm Watch color: black, white,Pink,red,blue Screen size: 1.8 inches HD IPS, 2.5D curved full touch screen, 320x385 resolution Bluetooth-compatible: 4.2+50 Dual-mode CPU: HS6620D+MTK2502 Flash : 8M bit+16M bit Battery: 300mAh lithium ion battery, longer battery life Standby time: &gt;7-15 days Use time:&gt;5-7 days Strap size: 42/44mm System: Support for Android5.0&amp; for IOS9.0 and above. Languages: English Dutch Russian French Portuguese German Spain Turkey Poland Malay Czechoslovakia Arabic Thai Italy Waterproof: IP67 life waterproof, please do not bring your watch to swimming, diving, bathing and sauna! Appearance material: alloyPacking list:&nbsp; 1 x Smart watch 1 x USB charging cable 1 x User manual 1 x Packing boxNote: Due to manual measurement, please allow 1-3 cm error, thank you Due to screen and other objective reasons, there may be a certain color difference, please understand. <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

1.8-inch I7Pro Max IWO13 PRO Smart Watch Bluetooth Call Heart Rate Blood Oxygen Monitor IP67 Waterproof Black