If I buy an iPhone 5s now will it be badly outdated or not in 24 months?

If I buy an iPhone 5s now will it be badly outdated or not in 24 months?

I don't think it will be that badly outdated. It won't be as thin as the newer iPhones, but the camera has been the same, the screen, the internal specs work just as well as the iPhone 6. I don't think it's that outdated. Some people still have iPhone 4s's.

I would consider it outdated once it is no longer being made and updated. As far as being made it is expected to go on until September 2016 when the iPhone 7 is expected to be announced. About being updated should be for a while at least until September 2018.