1. The Watch Works With Android 4.3 Or Higher,IOS 7.0 Or Higher.

2. For Android Phone It Supports All Functions.Scanning the QR Code On Watch Menu to Download The APP "BTNotification".3. Because Of No APP Available For iPhone, SomeFunctions Can't Be Used (Anti-lost, Message Sync, Message Notification FromApplications, Remote Camera, Bluetooth Music). Other Functions Can Be UsedNormally Because No need The APP.4. The Package Does Not Contain SIM Card Or SDCard.5. The Watch Is Only Daily Water Resistant, NotFor Showering Or Swimming.6. You Will Need A Valid Micro SIM Card AndMicro SD Card Inserted To The Smart Watch In Order To Install Apps LikeBrowser, Facebook, Twitter and WhatsApp. After That, You Can Click The App AndClick Install, And It Will Connect To A Data Network To Get Your Desired App,And Install It To Your MicroSD Card.Specifications:CPU: MTK6261DLCD: 1.54inch TFT High Definition LCDWatch Surface Size: 6.5cm*4cm(L*W)Thickness: 1.4cmThe Adjustable Length of Strap: 21cm-26cmNet Weight: 60gResolution: 240 x 240 pixelBluetooth: 4.0 VersionCamera: 1.3MBattery: 500mAh Polymer BatteryStandby Time: >1 Week Without BT ConnectedAnd > 3 Days When BT ConnectedCapacity: Support 32GB The Max Micro SD Card(Not Included with the Product)Language: English, German, French, Italian, Spanish,Greek, ArabicPackage Included:1 x Smart Watch1 x USB Cable1 x User Manual