Product Description Bigme B7 E-book Reader, 7-inch E-ink Screen, 300 PPI, 8+128GB, Open Android 14 System, E-book Tablet with Handwriting and 5MP Rear Camera Product Specifications: Screen: 7-inch color E-ink screen Resolution: 1264*1680 Black and White; 632*840 Color Screen Resolution: 300 PPI Black and White; 150 PPI Color Processor: Octa-core 2.3GHz Memory: 8GB + 128GB Bluetooth: BT5.0 Wi-Fi: 2.4G & 5G Camera: 5 million pixels Microphone: Support Pen: Capacitive pen, wireless charging Expansion: TF card expansion up to 1TB Gravity Sensor: Support Full 4G Network: Support SIM Card Type: Nano SIM Battery: 3000mAh Weight: About 215g Operating System: Android 14 Overall Size: 1( Phone number appears when clicking the contact button ) mm Bigme B7 color e-paper tablet with 4G connection 4G Connection | Android OS | Wireless Charging Pen | 8GB + 128GB Your All-in-One Tablet: Handwriting + Keyboard (DIY) + Calls + Voice Recording Supports SIM card, Frequency Bands: B1/B3/B5/B8/B34/B38/B39/B40/B41