The best replacement for nuvi is tomtom.

The best alternatives to nuvi are rated as following:
★★★★★  tomtom
★★★  streetpilot
★★★  magellan
★  zumo
★  roadmate
★  maestro
★  tom tom
★  magellan roadmate
★  magellan maestro
★  street pilot
★  tomtom one
★  mio
  garmin streetpilot
  2720
  tomtom which is better
  tomtom via
  garmin street pilot
  c340
  navigon
  tomtom go
  dezl
  iphone app

Your alternative for nuvi is not listed? Suggest!
Speaking about nuvi, one probably shouldn't forget about lane assist.

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



Google Trends

Scale is based on the average worldwide traffic of nuvi in all years. Click on graph for more.
nuvi
tomtom
streetpilot