iPhone 4s 8Gb Size and Weight Height: 4.5 inches (115.2 mm) Width: 2.31 inches (58.6 mm) Depth: 0.37 inch (9.3 mm) Weight: 4.9 ounces (140 grams) Cellular and Wireless World phone UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz) CDMA EV-DO Rev. A (800, 1900 MHz)4 802.11b/g/n Wi-Fi (802.11n 2.4GHz only) Bluetooth 4.0 wireless technology Location Assisted GPS and GLONASS Digital compass Wi-Fi Cellular Display Retina display 3.5-inch (diagonal) widescreen Multi-Touch display 960-by-640-pixel resolution at 326 ppi 800:1 contrast ratio (typical) 500 cd/m2 max brightness (typical) Fingerprint-resistant oleophobic coating on front and back Support for display of multiple languages and characters simultaneously Camera, Photos, and Video 8-megapixel iSight camera Panorama Video recording, HD (1080p) up to 30 frames per second with audio Autofocus Tap to focus Face detection in still images LED flash Video stabilization Front camera with VGA-quality photos and video at up to 30 frames per second Photo and video geotagging Power and Battery Built-in rechargeable lithium-ion battery Charging via USB to computer system or power adapter Talk time: Up to 8 hours on 3G Standby time: Up to 200 hours Internet use: Up to 6 hours on 3G, up to 9 hours on Wi-Fi Video playback: Up to 10 hours Audio playback: Up to 40 hours Audio Playback Frequency response: 20Hz to 20,000Hz Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV User-configurable maximum volume limit TV and Video AirPlay Mirroring to Apple TV support at 720p AirPlay video streaming to Apple TV (3rd generation) at up to 1080p and Apple TV (2nd generation) at up to 720p Video mirroring and video out support: Up to 1080p with Apple Digital AV Adapter or Apple VGA Adapter (adapters sold separately) Video out support at 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately) Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format Headphones Apple Earphones with Remote and Mic Frequency response: 20Hz to 20,000Hz Sensors Three-axis gyro Accelerometer Proximity sensor Ambient light sensor System Requirements Apple ID (required for some features) Internet access 6 Syncing with iTunes on a Mac or PC requires: Mac: OS X v10.6.8 or later PC: Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later iTunes 10.7 or later