I had the chance to test GPS on a Galaxy Mini 2 and a Galaxy S2 Plus.
The test was done in the same place, one phone after the other.
Both phones didn't have any data connection, cellular of Wi-Fi, so positioning was done using only plain GPS.
Here is the Galaxy Mini 2.
Locking took 60 seconds with 5 satellites.
The Galaxy S2 Plus got its lock in 3 seconds with 16 satellites.
Note that on both phones, compass was way off.