Call me cheap, but after spending more than $600 for three GW-60s, only to end up with 2 that are "somewhat broken" (after getting one replaced on warranty), I'd really like an alternative to the watch. I also really like the large display, speed announcements, and details possible when using a phone, but fully understand the limitations of using the build-in GPS chips.

So I played around with a $20 USB dongle that uses a u-blox 7 chips, which provides the accuracy estimates that we need for the GPS Team Challenge (and other competitions). Initial results are encouraging, so I thought I'd share. Details at boardsurfr.blogspot.com/2017/11/an-accurate-gps-for-20.html