The best replacement for bionic is thunderbolt.

The best alternatives to bionic are rated as following:
★★★★★  thunderbolt
★★★  razr
★★★  iphone 4s
★★  razr maxx
★★  atrix
★★  rezound
★★  htc thunderbolt
★  droid 4
★  droid razr
★  iphone 5
★  charge
★  prosthetic
★  iphone 4
★  razr maxx hd
★  glibc
★  x2
★  droid x
★  revolution
★  droid 3
★  droid charge
★  cybernetic
  htc rezound
  uclibc
  droid x2
  spectrum
  atrix 2
  razor
  denali
  droid pro
  samsung stratosphere
  motorola targa
  leatt

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

Other search terms related to bionic and their ratings are:
★★★★★ lapdock
You have in mind a companion for bionic and it is not yet here? Propose!



Google Trends

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