
Camera
Galaxy S II: The 8MP shooter on the S II is so good it really puts the pressure on the camera market as a whole. With built in features like panoramic picture tethering and 1080p 30fps video this really is the cream of the Android crop.
iPhone 4S: And now the iPhone 4S can bump the iPhone 4 off the iOS topspot with identical specs to the Galaxy S II. 8MP? Check. 1080p video at 30fps? Yes, sir. Plus you can now crop and rotate your images inside Photos – and prettify your pictures with one of the tons of photo apps and filters available on the App Store.
Winner: Draw

OS
Galaxy S II: The excellent Android 2.3.3 with TouchWiz 4.0 makes access to everything simple and personalized. The pull-down options are convenient with smooth transitions. The addition of Swipe also makes typing a breeze; whether you're creating a text message, word document or email.
iPhone 4S: If you've got a house full of Apple products, you'll like the new Mirroring feature in iOS 5 which lets you play your iPhone 4S's 720p video on your Apple TV, via AirPlay tech that's usually reserved for music streaming. There are also pull-down Notifications, Reminders and iMessage integrated into your SMS and Twitter is – unsurpisingly – all over the new OS.
The iPhone 4S's secret weapon is its voice recognition feature, Siri – see how much we loved it in our hands-on review – but there's nothing to stop Android app developers stepping up their voice control game.
Winner: iPhone 4S
Apps
Galaxy S II: The Galaxy S II uses the Android Market, which provides a cornucopia of good, bad and ugly apps. Quality control is a serious issue when it comes to Android apps, but on the plus side there are a lot more freebies than the Apple Store.
Google recently overhauled the Android Market to emphasise featured apps, which makes it easier to find worthwhile purchases. It's still a bit of a lucky dip though, and malware concerns are always lurking in the background. Samsung has also just launched Music Hub in Australia, a music streaming service with access to a whopping three million tracks at launch.
iPhone 4S: Apple might keep a tight (some would say draconian) grip on what Apps are marketed in its App Store, but the tradeoff is better quality control and a higher level of security. With a significant head start on Android, the Apple Store has a wider variety of apps, although the gap is beginning to narrow with every passing month. All things considered, Apple's storefront comes out on top due to its user-friendly interface and better range of apps.
Winner: iPhone 4S
VERDICT
So, we've tiptoed along the fence so far but finally fallen off into Apple's side with the temptation of the superior App Store beckoning – the same reason the iPhone 4 has ruled our top ten since its launch last year. The iPhone 4S hasn't stunned us spec-wise but it has done enough to edge itself ahead of the best of Android – in other words the Galaxy S II.