Summary: I upgraded from an Edge500 computer. Main reason was the live track feature so my girlfriend can see where I am during ride. Edge510 is bigger and heavier (around 30 grams) than the Edge500 but also has bigger screen. You can see more information on one page. A better resolution wouldn't be too much... Touchscreen makes the use easier and faster than the old version. Which is another plus.
Summary: An excellent upgrade to the Edge 705! The wireless uploading to Garmin Connect on my smartphone makes data storage, and ride evaluation simple. Live tracking is slick if you want someone to know your location during your ride. To date, all features have worked well for me. The only reason I have not rated this unit 5 stars is I would prefer a toggle stick on the unit like the Edge 705 to change between the available screens while riding.
Summary: The product is awesome, works well and helps a lot in training, directing you to your goal. What I found unfavorable, which I believe is crucial to update the next versions is the touch screen should be better and more sensitive and weather forecast not accurately locates the region where I am making this great useless function. Overall the product is very good!
Summary: Mixed feelings on this guy. I also have the 500. Here goes: The 500 is way easier to read in any and all conditions. The 510 isn't awful but clearly inferior to the 500 in that regard. Aside from that though , the 510 is a better unit. Locks into satellites immediately whereas the 500 takes a bit of time. I do prefer the slightly larger screen size of the 510 so I can place more stats on each page. The Bluetooth however, really ticked me off.
Summary: ditched my Polar CS-500 and fell in love with a Garmin the 510 has all the features you will ever need and the Bluetooth is awesome. No problems after several months of use seems to be rock solid product.
Summary: The package set was complete as described upon receipt. I wanted to have access to majority of my ride statistics and had no problems with the screen interaction compared to other feedback I have read. The sync with the phone and heart rate monitor is perfect on my Samsung phone and had no problems with connectivity.