I have used a Garmin Etrex Legend in the past but th screen got screwed up without me abusing it other than some adverse weather conditions. Also, I forgot to remove the handlebar mount from the trike before I sold her years ago. I used it to record riding distance, speed, time etc... I have been thinking of getting a new GPS unit for future travels.
Here is a ten year old video of me riding with th Etrex Legend mounted on th bars of a 1985 Honda ATC 200X trike:
https://www.youtube.com/watch?v=ylBmeDrZY9o
Here is a longer video of me, on th same trike, using the same GPS unit: