Summary: I bought this watch as an upgrade to the Garmin 310xt that I had used for almost 2 years. I had a very difficult time pulling the trigger on this purchase because I really was not impressed with the 310xt. It had serious connectivity issues which made using it rather annoying. I read some reviews on the 620 and it seemed like it may have been the same. In my case, it is so far so good. The 620 can use the power cord as a connection to upload your data.
Summary: If you are an Avid runner, and don't mind paying premium price, go ahead and get this, But if you are on a limited income and watch what you purchase then stop here and look elsewhere. I decided that this was too much money for a watch that, really, you can only use for running. This stuff is way overpriced or maybe I am to Frugal? Honestly after having tried several options for running watches, I ended up going with a simpler option.
Summary: I would certainly buy it again and I would choose it over any other GPS watch in the market. I still gave it only 4 stars, because of a number of initial problems that were more related to the lack of more accurate instructions in the manual and to a not very intuitive software. The first two runs I did not manage to record them, cause after pressing "run" (and not looking at the screen), 5 min later or so it announced to go in power save mode...
Summary: So disregarding the most recent reviews warnings against this device, I dropped the $400+ to get the complete package including the HR strap. (It by the way came complete with sharp edges on the skin side of the strap which were bad enough to rub a raw spot on me even when I was just trying it on. Nice.
First didn't work, second one died after 3 months...doesn't live up to the hype
old runner, Amazon
24 June 2014
Summary: I have owned Garmin 205, 305, 310, which all have been accurate and dependable. Not so for the 620. The first 620 I received I returned because the auto pause would not work. The second one has died immediately after receiving a firmware update. Still waiting for repair authorization from Garmin. Aside from the dependability factor, the 620 simply is not worth the price. The many great features which are highly promoted are highly inaccurate. i.e.
Summary: I suggest saving your money and buying a Garmin 220. Wifi and BlueTooth connectivity useless. Garmin connect is terrible (but Strava is a free alternative). Nevertheless the best running watch.
Summary: I replaced my old and faithful Forerunner 305, with which I had a number of issues with keeping track of my heart rate, especially with sudden changes in longer runs. The 620 picks up satellites immediately, never misses a beat on my HR and is quite accurate in all the metrics that I care about. I also like the fact that I don't need to use the foot-pod to keep track of cadence.
Summary: I am enjoying the new gps watch for running. I had a 3 year old basic one previously and this one runs circles around the old one. Much easier to use and it picks up satellite signals immediately. I am very happy with it.