The best replacement for i9003 is i9000.

The best alternatives to i9003 are rated as following:
★★★★★  i9000
★★★★  i9001
★★★  samsung galaxy s i9000
★  s5830
★  i8150
★  i9000b
  galaxy s i9000
  samsung galaxy i9000

Your alternative for i9003 is not listed? Suggest!

No companions for i9003 have been suggested so far.
You have in mind a companion for i9003 and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of i9003 in all years. Click on graph for more.