BLU Studio G D790u Unlocked GSM Quad-Core Smartphone - Blue (Certified Refurbished) 5.0-inch IPS LCD Capacitive Touchscreen, 480 x 854 pixel resolution (~196ppi pixel density) Android OS 5 Megapixel Camera f/2.8 aperture, Autofocus, LED Flash, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR + VGA Standard Front Camera; Video Capture: 720p @ 30fps Internal Memory: 4GB, 512MB RAM - microSD Up to 64GB WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot; Bluetooth: v4.0, A2DP; GPS: Yes, with A-GPS; USB: microUSB v2.0