Read up on the 810...er...issues before pulling the trigger.
Evidently, Garmin used Windows ME for an operating system...shutdowns, lost data mid-ride, reboots needed, software glitches...
At least when I finally get ****** off enough and toss this Cateye Stealth 50 GPS computer in the garbage can I'll only be out $115. Plus $50 for the heart rate strap that needed 're-synched' twice so far this Spring after being completely replaced because the first strap failed last Fall.
The computer head was also replaced by Cateye after the first one failed. Great customer service for a poorly thought out product that also has glitchy software.
I really want to embrace GPS, but the accuracy of the various websites' interpolation of the ride file data is insane. Last night I did VERY flat sprints, wind-ups and jumps in the drizzle. One website, Cateye Atlas, said I did about 25' of climbing...about correct. The next website, Map My Ride, said I climbed almost 70'...OK, almost a 3X difference. STRAVA's Lie-O-Meter confidently said I went up 196'. I didn't bother to see what Training Peak's upload said...
I'll wait for the next generation of GPS computers, software and satellites (you know...ones that might even be able to find a 777 with a couple hundred people on board [yeah, I'm aware most planes fly without GPS!]) before making the leap again.