iLA Silk Smartphone Ram 4GB Rom 64GB 5.7 Inch (Color may Vary) 16MP Front Camera Dual Nano SIM Micro SD Card External Storage Slot 3000mAh 4G OTG Android 8.1 Mobile Phone (Smartifact) Size:153.7*71.2*7.95MM Network:GSM/TDD-LTE/WCDMA/FDD-LTE Bands: GSM：B2/3/5/8; WCDMA：B1/2/5/8; TDD：B38/39/40/41; FDD：B1/2/3/5/7/8/20 NANO+NANO+T Card Display: 5.7-inch In-cell 18:9 (1440x720) 2.5D Screen CPU: Qualcomm Snapdragon MSM 8937 Octa Core 1.4Ghz Operation System: Android 8.1 Memory: RAM: 4GB RAM+64GB ROM (Up to 256GB storage memory) Camera: 13MP+2MP Rear Camera+ 16MP Front Camera Battery: 3000mAh Fingerprint recognition G-sensor Light/Distance Sensor RGB signal light Speedlight E-compass WIFI,BT,FM,GPS,OTG Audio Amplifier: External K Class Headphone Jack: 3.5mm USB Interface: Micro USB