Re non-aviation GPS units, "Choice" tested 13 in-car units and 10 hand held units earlier this year. With the in-car units, the outstanding performers were the TomTom Go 720 and Garmin Nuvi 250W. Both have 16:9 wide screens, and a battery life of 5 hours for portable use. With the hand held units, the Garmin eTrex Vista Cx and Garmin eTrex Legend Cx were the best two performing units overall. The Vista model has built-in altimeter/barometer info as well.