The best replacement for 521 is 520.

The best alternatives to 521 are rated as following:
★★★★★  520
★★★★★  925
★★★  511
★★★  710
★★  531
★★  508
★★  721
★  optimus l9
★  520 lumia
★  lg optimus l9
★  321
★  821
★  513
★  lg optimus f3
★  810
★  nokia lumia 520
  514
  vsx 821
  samsung galaxy exhibit
  stans flow
  541
  nokia lumia 925
  lg motion

Your alternative for 521 is not listed? Suggest!


No companions for 521 have been suggested so far.
You have in mind a companion for 521 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 521 in all years. Click on graph for more.
521
520
925