The best replacement for a110 is a116.

The best alternatives to a110 are rated as following:
★★★★★  a116
★★★★★  a90s
★★★★  a21
★★★  a110q
★★★  a111
★★★  a100
★★  karbonn a30
★★  a101
★★  nokia lumia 510
★  a115
★  a88
★  karbonn a24
★  a114
★  samsung s duos
★  a30
★  sony xperia tipo
★  spice mi 500
  xolo a800
  sony tipo
  samsung galaxy s duos
  karbonn a9+
  karbonn a11

Your alternative for a110 is not listed? Suggest!
Speaking about a110, one probably shouldn't forget about a116.

Other search terms related to a110 and their ratings are:
★★★★★ a116
★★ a90s
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a110
a116
a90s