Parameters： Type: Watch Phone CPU: MTK6580 Cores: 1.3GHz, Quad Core GPU: Mali-400MP System: Android 5.1 RAM+ROM: 512MB + 8GB External Memory: Not Supported Bluetooth version: V4.0 Network: GSM (850/900/1800/1900MHz) + WCDMA (850/2100MHz) Wireless Connectivity: 3G, Bluetooth 4.0, GPS, GSM, Wi-Fi WIFI: 802.11b/g/n wireless internet Compatible OS: Android Display: 1.33 inch screen Screen type: Capacitive Screen resolution: 360 x 360 Camera type: Single camera Front camera: 2.0MP Picture format: BMP, GIF, JPEG, PNG Video recording: Yes Video format: 3GP, FLV, MP4, RMVB Music format: AAC, AMR, MP3, OGG, WAV Speaker: Supported SIM Card Slot: Single SIM SIM type: Nano SIM Battery capacity: 450 mAh (Built-in) Languages: Japanese, Simplified/Traditional Chinese, Indonesian, German, English, Spanish, French, Italian, Portuguese, Vietnamese, Turkish, Russian, Arabic, Persian, Hindi, Bengli, Thai, Burmese, Korean Size & Weight: Product size: 5.32 x 4.70 x 1.59 cm / 2.09 x 1.85 x 0.63 inches Package size: 10.80 x 10.80 x 5.70 cm / 4.25 x 4.25 x 2.24 inches Package weight: 0.25 kg Package contains: 1 x S99 Smartwatch 1 x USB Cable 1 x English Manual Notes: * Download your favorite apps through the Google Play Store or Market installed. * This smart phone is designed only to work with the current Android/Windows OS installed in it. Any alterations such as upgrades or flashing a newer version will void the warranty. * The stated ROM amount shows the maximum available ROM with nothing installed. However, the Android/Windows OS and pre-installed software from the manufacturer will occupy some of this ROM. The available ROM on the device will therefore be slightly less than the ROM listed.