Apple (Canada) - iPhone

	iPhone 4S	iPhone 4	iPhone 3GS
	Dual-core A5 chip	A4 chip
Colour	Black White	Black White	Black
Weight and Dimensions¹	Height: 115.2 mm (4.5 inches) Width: 58.6 mm (2.31 inches) Depth: 9.3 mm (0.37 inch) Weight: 140 grams (4.9 ounces)	Height: 115.2 mm (4.5 inches) Width: 58.6 mm (2.31 inches) Depth: 9.3 mm (0.37 inch) Weight: 137 grams (4.8 ounces)	Height: 115.5 mm (4.5 inches) Width: 62.1 mm (2.4 inches) Depth: 12.3 mm (0.48 inch) Weight: 135 grams (4.8 ounces)
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