S2 with digi is 9100G, and not 9100. Read up on it and make your own conclusions.

Bro, one thing is people say it hangs because they use pirated apps! Can buy phone so expensive but can't afford a few ringgit app. Yes, that's why the phone hang a lot.

Also, android you can modify your phone speed etc. over modifying will lead to hang etc. again, people will blame phone instead of themselves.

For me, I am lucky to be able to afford nearly all the hot phones now. I would say it all boils down the your preference. I feel s2 is the best for now but I uses ip4s because i love it more.

Just go try in the shop and decide

Which is newer doesn't matter.

9100 and 9100G uses different SoC.

All else being equal. But its best you determine yourself which is better for your long run usage.