The Edge 840 is a really good GPS computer. I purchased this after my Wahoo Roam started being unreliable. The detail and capabilities of the Edge are superior to the Wahoo. I do most of my riding solo and the LiveTrack on the Edge provides much more detail than the tracking on the Wahoo.
The one negative I can think of is that the setup and menus on the Edge and the Garmin Connect app are WAY to complex. It seems like any sort of configuration change on the Edge is buried three layers down in the system menu.
This bike computer was an upgrade for me from a Garmin Edge 130 Plus. The technology isn't the latest, i.e., no touch screen, no solar power. However, the upgrade has provided many advantages over the 130 Plus.
Here's what I like: 1) More data and fields per screen. E.g., the 530 records fluid and calorie consumption, derailleur and gear status of Di2, and up to 10 data fields per screen. 2) More available screens. 3) Longer battery life by a wide margin. After 3-hour ride in 45F weather with screen brightness at 60%, battery is between 75 - 85%. 4) Faster processing and syncing. Syncing routes from RideWithGPS now takes seconds, not minutes. 5) I like the summary screen and data that are available after a ride.
Here's what I don't like: 1) It takes some time to learn the function of the 6 control buttons. They're very different from the 130 Plus. 2) While the 530 offers color maps that can be browsed, the navigation process is very antiquated. Moving about on the maps is very slow.
The 4-star value rating comes from the retail price remaining around $300, which I believe is high compared to other computers and newer technology that's available. Overall, I like the computer, feel it's a good improvement over the 130 Plus, and would recommend it to anyone who wants solid function and capabilities at a moderate price.
Two things appealed to me about the Coros Dura bike computer: it's price and the relative ease other reviewers gave for ease-of-use. Price is definitely favorable compared to other GPS computers but as for ease-of-use, I'm less sure. You will need to use the app to do most things, then sync the app on your phone with the Dura...that part is easy. Less so, is wading through the myriad of features you will likely not use to do what for me is the essential: mapping rides, importing routes and measuring distance, elevation gains and losses etc. I've had it a couple of months at this point and I've imported routes and used the routes for riding but I am by no means masterful at using it - I suspect it will take a more concerted effort yet. Overall, great GPS, just wish there were a stripped down feature for easier day-to-day use for those not training for a triathlon and don't need splits, laps etc.
I purchased this to help train for a 100 mile MTB race. I have used it on gravel and road rides so far. I was able to easily connect with a heart rate monitor. The owners manual was of limited help in setting up. Mostly relied on U tube videos to set up. I am pleased with this GPS but since I do not understand and alot of the functions and fields , I am sure I am not gaining all that it has to offer. I am 63 with 8 years of college but I own a flip phone and am technology challenged.
