+ Battery life: It's amazing, but the 1500 mAh battery of the S Advance keeps loose with the same use 50% longer. In the evening I have until now always at least 50% of the battery capacity.
+ GPS: When the GPS receiver S2 was a disaster (if you ever get), the S Advance it takes less than 10 seconds to one receiver has (even in rooms).
+ Size: is a matter of taste, but as often as my S2 has fallen out of my hand, I can only say that I prefer the smaller size real (4 inches from my experience ideal).
+ Display: a matter of taste. I found the Super AMOLED display of the S2 even on the lowest brightness too strong. The S Advance is much easier on the eyes due to the lower contrast of AMOLED displays.
+ Voice quality: For me, the biggest problem with the S2. The lousy voice quality has made the call impossible without a headset. When S Advance, although it is also not top, but much better.
+ CPU, RAM, storage: The Dual Core CPU at 1 GHz is more than adequate, so far always ran everything flüssung (all 3D games). RAM with 768 MB on the border, but is also sufficiently Completely restructured. The 8 GB memory with an additional SD card no problem, as most programs never more than 10 MB consuming.
o Camera: There is an exception that S2 is the better choice, although S Advance hinbekommt decent pictures. In my S2 Unfortunately, the camera has given up the ghost after only six months.
o Form: Anyone looking for a decent S Advance casing is getting his problems, because that S Advance is unlike many other smartphones curved and most cases do not fit.
My recommendation: give 100 euros less on a really good smartphone that's also really handy.
