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Garmin Edge 820 Bike Computer

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    • Black, One Size
      sale $297.99


    9 Reviews


    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
    • Item #GRM007A

    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

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Would be perfect if.......

    • Familiarity: I've put it through the wringer

    ....the battery in mapping (especially on a cold day!) could last a whole 50+ mile ride without going into power save mode and the screen turning off until I get home to recharge it. I even hit the stop button and do a “soft” turn off during a 1/2 hour lunch break to conserve the battery and it still is terrible! My latest way to make this work on a long day with maps is to bring my trusty Anker fast charging battery and charge up during my reststop with it on and not turning off. I was able to get it from 23% to almost 80% in a half hour. I know about the power save mode option, but prefer my Garmin not to shut down during the ride until my next turn or tapping the screen to wake up. If it wasn’t for the poor battery life, I would absolutely love this little guy.

    Worth the additional money over the 520?

    • Familiarity: I've put it through the wringer

    Last year I was shopping around for my first cycling computer. When the smoke had cleared, I had decided on two different options, A) Garmin Edge 520, B) Garmin Edge 820.

    I was impressed with how both felt in hand and with the ease of touch screen on the 820 just slightly nudging out the 520. The additional features eventually made me buy the 820.

    Fast-forward 8 months later. I almost never use the additional features of the 820, with basic metrics being my go to screen. The touch screen is temperamental at time, and impossible to use with gloves.

    If I were to do it again, I would probably save my money and buy the 520, or if I had known, waiting and bought the Wahoo Elemnt Bolt.

    Best Garmin for racing/training

    • Familiarity: I've put it through the wringer

    UPDATE 5/18/2017: I loved the improved 520 screen over the 510, but I hated the 520 buttons, so hard to press. When the 820 came out (520 features but touchscreen) I was ready to buy it. I do think it's currently the best computer for people who race/train due to balance of latest features with fairly compact size. I will say, in their race (no pun intended) to add features Garmin introduced some glitches and design hiccups but those are not specific to this model. Among those annoyances are the Strava alerts and text message alerts, both which conspire to ruin a perfectly good interval workout by obstructing your screen with stupid pop-up alerts. Turn those features OFF. I also struggle to understand why Garmin has not added an automatic backlight to come on after sunset (so I can read the display) and turn off after sunrise (to conserve battery). I also cannot fathom why there is still no ability to store my display screen settings on my PC or Garmin Connect in case I have to master reset or replace a unit. Again, these are software issues that most Garmin models suffer. One new feature that is particularly useful is navigate back to start -- helpful when you get dropped in a race and want to cut your losses and get home. Set the touchscreen to the most sensitive setting if you want it to work with long-fingered gloves. I had to return/warranty my 820 once due to sudden failure to connect with phone but no apparent hardware damage. The charge lasts decently long, especially if you turn off backlight during the day. But the old 500 still had much better battery life since it was a simpler less feature-packed unit. /Update 6-7-2018: biggest annoyances for me are how slow and unresponsive the touch screen sometimes is, especially when multiple presses are involved like to back out of a menu (maybe create a home button that will take you all the way to the beginning in one press); the battery life doesn't let me get much riding in between charges and has to enter low battery mode; annoyed that it STAYS in low-battery mode even after you finish your workout and recharge it so you have to manually go back through the menus; still does not have a backlight to turn off/on automatically in the morning/evening; and auto-upload often does not work with my latest Android.

    Does not work with Power Meters.

    • Familiarity: I've put it through the wringer

    Very disappointing performance with external Power Meters.

    Upgraded from the Edge 510 and it has been trouble ever since. Garmin support sucks and they are dodging taking responsibility for the issue. When you call product support their story changes every time ... but if you read about it in the blogs, it is an engineering problem. I've replaced mine twice, going for a full refund now. It's a shame, as I've been using Garmin for 9 years, this is my fourth model and its really good ... but when it doesn't work with other non Garmin devices (eg Powermeters) ... it sucks ... especially when they won't take responsibility. ... need to go backwards to the 510 .... my next Powermeter won't be a Garmin.

    Same issue - my Edge 820 drops signals from my new Stages PM. Stages and Garmin both say it's a "compatibility" issue. Stages: "the antenna on the Garmin 820 is in the wrong place, Garmin moved it, so move the Edge to the stem or handle bars." Going to return the Stages and try another PM - maybe Quarq. Or get rid of the 820 and get a Wahoo Bolt.
    Alan B. - you are wrong with your blanket statement. The 820 doesn't work with Stages PM! Period!

    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.


      • 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 :)


      Are the buttons easier to press than on the 520?