Apple iOS iPhone Comparison: iPhone 4S, iPhone 4, iPhone 3GS By Khurram Ali Posted on October 5, 2011 1 Share on Facebook Share on Twitter Share on Google+ Share on Reddit Share on Pinterest Share on Linkedin Share on Tumblr While all the iPhone talks are on, Apple just have published a full chart of explaining the differences in new iPhone 4S from the previous models iPhone 4 and iPhone 3GS. Leaving the design and outlook of the much awaited iPhone many internal hardware changes have been introduced. Just check the list below and evaluate yourself. Major additions to iPhone 4S Dual Core A5 Chip (Processor) Voice Instructed Messaging, Reminders and more 8 Mega Pixels Camera. 1080p video recording at 30fps Bluetooth 4.0 Processor Dual Core A5 Chip A4 Chip – Weight and Dimensions1 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) Height: 4.5 inches (115.2 mm) Width: 2.31 inches (58.6 mm) Depth: 0.37 inch (9.3 mm) Weight: 4.8 ounces (137 grams) Height: 4.5 inches (115.2 mm) Width: 2.4 inches (62.1 mm) Depth: 0.48 inch (12.3 mm) Weight: 4.8 ounces (135 grams) Built-in Assistant Siri Use your voice to send messages, set reminders, and more. – – Camera 8 megapixels Autofocus Tap to focus LED flash Backside illumination sensor Five-element lens Face detection Front camera with VGA resolution 5 megapixels Autofocus Tap to focus LED flash Backside illumination sensor Four-element lens – Front camera with VGA resolution 3 megapixels Autofocus Tap to focus – – – – Video Recording Improved HD video recording 1080p 30 fps Tap to focus while recording LED light Video stabilization HD video recording 720p 30 fps Tap to focus while recording LED light – VGA video recording 480p 30 fps Tap to focus while recording – – Video Calling FaceTime (iPhone 4S to any FaceTime-enabled device over Wi-Fi) FaceTime (iPhone 4 to any FaceTime-enabled device over Wi-Fi) – Display High-resolution Retina display 960-by-640 resolution 326 ppi Multi-Touch High-resolution Retina display 960-by-640 resolution 326 ppi Multi-Touch – 480-by-320 resolution 163 ppi Multi-Touch Cellular and Wireless UMTS/HSDPA/HSUPA GSM/EDGE CDMA EV-DO Rev. A2 Wi-Fi 802.11b/g/n Bluetooth 4.0 GSM model: UMTS/HSDPA/HSUPA GSM/EDGE CDMA model: CDMA EV-DO Rev. A Wi-Fi 802.11b/g/n Bluetooth 2.1 + EDR UMTS/HSDPA GSM/EDGE – Wi-Fi 802.11b/g Bluetooth 2.1 + EDR Battery Life3 Talk time: Up to 8 hours on 3G Up to 14 hours on 2G (GSM)Standby time: Up to 200 hours Talk time: Up to 7 hours on 3G Up to 14 hours on 2G (GSM)Standby time: Up to 300 hours Talk time: Up to 5 hours on 3G Up to 12 hours on 2G (GSM)Standby time: Up to 300 hours