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Garmin Edge 820 Bike Computer


Item # GRM007A

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  • Black, One Size ($399.99)
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Item # GRM007A

Gain an edge over the competition.

Recent years have posed something of a conundrum for the discerning data nerd, but Garmin's new Edge 820 Bike Computer solves the case by refusing to sacrifice with a huge body or limited functionality. The Edge 810 brings it all to the table with myriad mapping, tracking, and virtual training tools but is a bit of a behemoth when strapped to a stem. On the flip side, the Edge 520 sacrifices some features but is a beautifully streamlined package that hits the sweet spot in size—small enough to blend into the cockpit yet large enough for ease of view. The Edge 820 merges the best of both worlds, packing massive functionality and full-touchscreen utility into a perfectly proportioned frame on par with the Edge 520.

The Edge 820 encompasses all the things we loved in the Edge 520 and adds a host of features to boost your cycling game. Its full touchscreen is a welcome and user-friendly upgrade from the mixed button/touchscreen system employed on the Edge 520, but the mapping options are what really make this computer shine. It comes with a preloaded Garmin Cycle Map and boasts internal memory for adding additional maps if needed. It lets you plan your routes, provides round-trip routing direction to keep you on course, and offers up audible prompts via Garmin Connect Mobile so you can keep tabs on your metrics and progress without constantly craning your neck to stare at your stem.

As with the Edge 520, the Edge 820 displays metrics encompassing everything from charting fitness levels to power output and targeted recovery. It also features Strava Live Segments, which means you now can track segments in real time out on the road. The Edge 820's direct connection to Strava gives you a leg up in the battle for K/QOM's with live updates as you ride, simultaneously displaying the stats of your present performance against the current segment holder and your own personal record. The days of getting home and excitedly loading files only to be crushed by the dreaded second place badge next to a coveted segment because you misjudged the end point by a handful of meters are over.

In addition to the above shininess, the Edge 820 features ANT+ and WiFi connectivity to pair with your power meter or other metric-gathering device of choice. It's compatible with Shimano's D-Fly Data Management system, so it can effectively replace the PRO Scio ANT+ head unit in the system. Additionally, it monitors gearing in other electronic shifting systems via ANT+ and pairs with ANT+ turbo trainers. It performs all the basic computer functions—speed, trip time, trip distance, odometer—and the GPS and GLONASS compatibility keeps you located no matter where your ride takes you. It automatically uploads to Garmin Connect, syncs with smart phones for notifications, and displays weather information so you're never out of the loop or surprised by changing conditions mid-ride.

  • A head unit with huge functionality and a tiny cockpit footprint
  • Compiles ride data and biometrics in one touchscreen display
  • Full Garmin navigation capabilities for mapping and tracking
  • Live segment tracking and audible route notifications
  • Displays smartphone notifications and weather
  • Compatible with electronic drivetrains and Shimano D-Fly
  • Pairs with ANT+ turbo trainers
  • Automatically uploads to Garmin Connect

Tech Specs

Heart Rate Monitor:
yes, heart rate monitor sold separately
Technical Features:
touchscreen, preloaded Garmin Cycle Map, internal memory, round-trip routing, route planner, incident detection, audio prompts (through Garmin Connect Mobile), ambient light sensor, power meter compatibility, ANT+ electronic shifting monitoring, Strava Live Segments, performance condition/lactate threshold/stress score, Virtual Partner, advanced workouts, customizable screen, Smartphone notifications, weather tracking
yes, ANT+, WiFi
Mount Type:
stem (included), out-front mount (included)
tether, USB cable, Quick Start Manual
1.9 x 2.9 x 0.8 in
Recommended Use:
Manufacturer Warranty:
1 year

Reviews & Community


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Avg. ride time: 39m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


  • Familiarity: I've used it several times

Garmin Edge 820 Bike Computer easy to use it, Upgraded from garmin edge 520, I love it, that is simple.

Avg. ride time: 2h 28m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Initial Impressions: Great

    Upgraded from 510 to 820. This is just a short list of my thoughts from 2 uses so far.

    The good:

    -UI got some lovin from the 510


    -Garmin Connect, I have two garmin devices so I love having all my workouts in Garmin Connect

    -Guidance, I tend to get dropped so its nice having the ride programed so I make it back(ha)

    -USB Micro! My 510 was the last device I owned that used USB mini

    The not so good:

    -Don't expect a smart phone quality touch screen. I didn't so my expectations were managed

    Yes I would recommend this product to a friend

    Initial Impressions: Great

    funtion and size

    • Familiarity: I've used it several times

    I have been very happy with this computer. I'm not a super techy kind of guy but the 820 makes it simple enough but still has just about all the features you could want without being huge. Love the touch screen feature as well.

    Impressive Device

    • Familiarity: I've used it several times

    Device has great battery life and set up was quite easy! So far I have no complaints, although I wish the device had increased customization.

    Avg. ride time: 2h 14m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


    • Familiarity: I've used it once or twice and have initial impressions

    Its exactly what i've been waiting for and wanted, plus more!

    On my first ride, the touch screen sensitivity can be a bit much, unlike the older models. I had a couple incidents of saving and deleting a couple of rides by accident. Other than that, HRM, and Power meter goes a long way with this unit. Also the size is perfect for any cycling discipline.

    So far my wish has been granted. Two thumbs up Garmin.

    People with all thumbs like me, use your pinky :)


    How is the visibility in the daylight without backlighting and with sunglasses?

    Are the buttons easier to press than on the 520?

    Thanks Mariela. I see there is at least one button but so long as I can use touchscreen again for most functions I'm interested in having one.

    The Power button is soft to touch, while the bottom Lap and Play buttons are about the same as the 520