iPhone 7 is all original except for the battery which has been replaced, and the storage is 32 GB. / Samsung A15 Screen: 6.5-inch Super AMOLED Resolution: FHD+ (1080 × 2340) Refresh Rate: 90 Hz Processor: MediaTek Helio G99 (4G version) RAM: 4, 6, or 8 GB Storage: 128 or 256 GB with microSD support Rear Camera: 50 MP (main) 5 MP (ultrawide) 2 MP (macro) Front Camera: 13 MP Battery: 5000 mAh Charging: 25W fast charging OS: Android with One UI Fingerprint: Integrated into the side power button Charging Port: USB Type-C Headphone Jack: 3.5 mm Connectivity: Wi-Fi, Bluetooth 5.3, NFC (depending on version) SIM: Single Nano-SIM (in the single SIM version)