In reply to Chris the Tall:
> I've just upgraded to the 810. The fact that you can pair it to your phone (and upload your ride wirelessly) was a selling point. I also decided that OS Maps were well worth having.
Not sure how much time you've been able to spend with the 810 but I've had one since day 1 and in my opinion it's a heap of crap.
Right, where to start...
OS maps have way too much detail for such a small screen and pixilate to unusable after 1 or 2 zooms. Put a goto destination into the 810 for a route and it'll take you on a circulus route adding loads of unnecessary miles. It loves taking carbon frames and wheels down farm tracks and gravel trails. Input your route into Garmin connect and the 810 can't follow it taking you on the route IT wants. You regularly get stuck in loops ie 200 meters up the road get told off route do a u turn cycle back the get the same message.
Cadence sensor spikes all over the place. Battery life is crap if you use any backlight. It will only store 1 BT connection device at a time so lots of re-pairing.
Yes the basics are o.k and having access to your phone is nice it doesn't make up for a crap buggy device though.