After having tried and used many GPS brands and models (Garmin, Suunto, TomTom, Polar, GoLife...) my preferred device is the recently introduced Locosys GW-60 for the unique features no other brand that I know offers:
- 5 Hz data logging rate (5 times what others have)
- Doppler speed (generates spb files read directly by GPS Action Replay, the best track analysis tool)
- and most importantly, tracks are download directly to the computer (does no require internet)
I only wish it could display altitude and vertical speed as well, so it could be used as vario for flying as well. Perhaps with an upcoming firmware upgrade.
BTW, I just created a FB group for users of GPS devices to answer relevant questions, suggest improvements, report issues and post reviews.
https://www.facebook.com/groups/1932513823670951/
Disclaimer: I am NOT a Locosys pimp.