The best replacement for 705 is 703.

The best alternatives to 705 are rated as following:
★★★★★  703
★★★★  garrett at pro
★★★★  etrac
★★★★  805
★★★  at pro
★★★  kenda 761
★★  735
★★  kenda k761
★★  avon distanzia
★  800 garmin
★  diver
★  eureka gold
★  e trac
★  605
  archos 605
  706
  e-trac
  whites mxt
  omega 8000
  704
  garrett at gold

Your alternative for 705 is not listed? Suggest!
Speaking about 705, one probably shouldn't forget about powertap.

Other search terms related to 705 and their ratings are:
★★★★★ powertap
★ srm
You have in mind a companion for 705 and it is not yet here? Propose!



Google Trends

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705
703
garrett at pro