The best replacement for note 3 is iphone 5s.

The best alternatives to note 3 are rated as following:
★★★★★  iphone 5s
★★★★  s4
★★★★  s5
★★★  galaxy s5
★★★  note 2
★★★  htc one
★★★  nexus 5
★★★  htc one max
★★★  lg g2
★★  galaxy s4
★★  mega
★★  lg flex
★  g2
★  note 4
★  htc one m8
★  droid maxx
★  5s
★  wait for s5
★  s5 specs
★  s4 specs
  iphone 5
  iphone
  wait for note 4
  s3
  note 3 neo
  galaxy note 2
  galaxy s 4
  galaxy 5
  samsung s5
  moto x
  lumia 1520
  one max
  samsung note 2
  samsung galaxy s4
  iphone 5c
  2
  galaxy mega
  z1

Your alternative for note 3 is not listed? Suggest!
Speaking about note 3, one probably shouldn't forget about gear.

Other search terms related to note 3 and their ratings are:
★★★★★ gear
★ s pen
galaxy gear
You have in mind a companion for note 3 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of note 3 in all years. Click on graph for more.
note 3
iphone 5s
s4