hi, thanks - interesting to see so many positive impressions. I used my forerunner 245 today first time for navigating on the bike. The little screen can be a challenge, but it is on the handlebars closer than the edge uses to be on the mount in front. So it is probably just something to get used to.
But still:
I am not sure if this setup would take me through unknown territory.
For running it works flawlessly, even in thickest forests I have GPS.
So not sure if I might stick to the edge additionally to the forerunner.