Restore 4s > 3G possible?

[dabigone]

I have a spare 3G sitting around I want to use while waiting for the 5 and selling the 4s. Is it possible to restore a 4s backup to a 3G and then restore to the new 5 when that comes out?

 

[Mr Hill]

Yes you can restore it but some things will be missing that were on the 4S because the 3G doesn't support iOS 5. For instance, any of your imessages will not be visible on the 3G.

But once you restore that same 4S backup to the new iPhone, everything should be just as you left it.

 

[DefBref]

If your backup was made using iOS 4.2.2 or later then no you won't be able to restore to it. 4.2.1 was the last iOS version the 3G supports. And you can't restore backups to earlier iOS devices than what they were created on.

As you have a 4s which came with ios 5 then no you can't.