onn (OEM)Release dateජුනි 29, 2007 (2007-06-29)Units sold6.1 millionOperating systemiOS 3.1.3 (build 7E18)Released පෙබරවාරි 2, 2010; වසර 13  කට පෙර (2010-02-02) OS no longer supported by Apple; third party operating systems availablePowerBuilt-in rechargeable li-ion battery 3.7 V 1400 mAhCPUSamsung 32-bit RISC ARM 1176JZ(F)-S v1.0 620 MHzUnderclocked to 412 MHzStorage capacity4 GB, 8 GB or 16 GB flash memoryMemory128 MB eDRAMDisplay3.5-inch screen (diagonally)  320-by-480-pixel resolution at 163 ppi  2:3 aspect ratio  18-bit (262,144-color) LCDAudioTwo speakers  TRRS headphone jack, 20 Hz to 20 kHz frequency response (internal, headset)  MicrophoneInputMulti-touch touchscreen display  3-axis accelerometer  Proximity sensor  Ambient light sensor  Microphone  Headset controlsConnectivityQuad-band GSM/GPRS/EDGE  (850 900 1800 1900 MHz)  Wi-Fi (802.11 b/g)  Bluetooth 2.0  USB 2.0/Dock connectorOnline servicesApp Store, iTunes Store, MobileMe, Safari (Web Browser)Dimensions115 mm (4.5 in) (