Apple iPhone was launched in January 2007. The phone has N/A RAM and 4/8/16 GB of internal storage which is not expandable.
The iPhone has a 3.5 inches, 320 x 480 pixels TFT LCD display with a pixel density of 165 ppi. Coming to cameras, it has a 2 MP rear camera. It has a lightning port for data syncing and charging. There is a accelerometer sensor present on the iPhone. It is a single SIM smartphone with support for Wi-Fi and Bluetooth too.
The iPhone runs on iPhone OS, upgradable to iOS 3.1.3. It measures 115 x 61 x 11.6 mm (height x width x thickness) with a total weight of 135 grams including battery.