Do not fall for Swappables as they do not work on modern phones, just google it and you will see. Their own website has a compatibility list but it is still reporting some issues will be resovled in February 2012, obviously they did not bother. There are some hacks out there that can work around it but i have only ever got the TV one working, gave up trying to access the free games.
When I bought my S3 the sales person even tried to persuade me to purchase additional swappables, knowing full well they are not compatible with that phone.
They also persuaded me to get the LTE version so I can have 4g, but then provided me with a 3g sim and said later I cannot have 4g without upgrading.
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