Apple Apple Wireless Keyboard (2007) vs Apple Apple Wireless Keyboard (2009)

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Apple Wireless Keyboard (2007) compared with Apple Wireless Keyboard (2009)

	AppleApple Wireless Keyboard (2007)	AppleApple Wireless Keyboard (2009)
Overview
Released
Released	September 2007	October 2009
Typing
Layout
Layout	Compact	Compact
Switches
Switches	Scissor	Scissor
Backlight
Backlight	None	None
Keys labelled for
Keys labelled for	Mac	Mac
Touch ID
Touch ID	No	No
Switches
Switches	Low-profile scissor mountings, identified in an iFixit teardown of the A1255.	Low-profile scissor-mounted keys; an A1314 key repair on iFixit identifies the scissor mechanism.
Special keys
Special keys	F1–F12 with Mac brightness, Exposé, Dashboard, playback, volume and optical-disc eject functions; half-height inverted-T arrow cluster.	Function-row controls for display brightness, Exposé, Dashboard, playback, volume and media eject, described in Apple's user guide.
Connections and battery
Connects by
Connects by	Bluetooth	Bluetooth
Power
Power	AA battery	AA battery
Receiver
Receiver	Bluetooth connection with no separate USB receiver; the keyboard's cylindrical rear compartment houses three AA batteries, according to Macworld.	Bluetooth connection with no USB receiver. Apple's guide specifies two AA batteries and an on/off switch with a status light.
Works with
Works with	Macworld reported that Mac OS X 10.4.10 or later and Apple's Keyboard Software Update were needed for all special functions.	Mac OS X 10.5.8 or later with the latest keyboard software for the full set of features, according to Apple.
Design
Materials
Materials	Anodised aluminium upper body, white plastic keys and underside.	Aluminium body and white low-profile keys.
Colours
Colours	Silver aluminium and white keys.	Silver aluminium and white keys.
In the box
In the box	Apple announced the compact wireless keyboard for sale separately or as an iMac build-to-order option by the end of August 2007; Engadget reported a customer delivery on 13 September.	Apple Wireless Keyboard and two installed AA alkaline batteries, according to the 2009 user guide; bundled with new iMac models from October 2009.