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Garmin Edge 840 Solar, Solar-Charging GPS Cycling Computer with Touchscreen and Buttons, Targeted Adaptive Coaching, Advanced Navigation and More

4.5 4.5 out of 5 stars 230 ratings
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Purchase options and add-ons

Brand Garmin
Model Name Edge® 840 Solar
Vehicle Service Type Bicycle
Screen Size 2.6 Inches
Special Feature Touchscreen, Bluetooth
Connectivity Technology Bluetooth, USB
Map Type North America
Sport Cycling
Included Components Edge 840 Solar; out-front mount; standard mount; tether; USB-C cable; documentation
Battery Life 32 Hours

About this item

  • Advanced GPS cycling computer with touchscreen and button control combines superior navigation, planning and performance tracking, cycling awareness and smart connectivity
  • Battery life: in demanding use cases, get up to 26 hours or up to 32 hours with solar charging in direct sunlight (75,000 lux); in battery saver mode, get up to 42 hours or up to 60 hours with solar charging in direct sunlight (75,000 lux); during daytime rides, solar adds up to 25 minutes per hour in battery saver mode
  • View daily suggested workouts and training prompts on screen; based on your event, get personalized coaching that adapts to your current training load and recovery when riding with a compatible power meter and heart rate monitor
  • Find your way in the most challenging environments with multi-band GNSS technology that provides enhanced positioning accuracy
  • See remaining ascent and grade when climbing so you can gauge your effort with the ClimbPro ascent planner, now available on every ride — no course required; view on your Edge device and in the Garmin Connect app on your smartphone for ride planning
  • Classify your strengths as a cyclist, and compare your cycling ability to the demands of a specific course, so you can focus your training and improvement in the right areas, when paired with your compatible power meter and heart rate monitor
  • Manage your efforts with the power guide feature, which recommends power targets throughout a course, when paired with your compatible power meter
› See more product details

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Garmin Edge 840 Solar, Solar-Charging GPS Cycling Computer with Touchscreen and Buttons, Targeted Adaptive Coaching, Advanced
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Price-9% $499.99
List: $549.99		-18% $571.80
List: $699.99		$199.99$289.95$449.99$699.99
Delivery
Get it as soon as Wednesday, Mar 26
Get it as soon as Wednesday, Mar 26
Get it as soon as Wednesday, Mar 26
Get it as soon as Wednesday, Mar 26
Get it as soon as Wednesday, Mar 26
Get it as soon as Wednesday, Mar 26
Customer Ratings
4.54.5 out of 5 stars230
4.74.7 out of 5 stars1,067
4.44.4 out of 5 stars194
4.34.3 out of 5 stars55
4.54.5 out of 5 stars230
4.44.4 out of 5 stars45
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From the manufacturer

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Garmin Edge 840 Series
Garmin Edge 840 Series

What's in the box

  • Edge 840 Solar; out-front mount; standard mount; tether; USB-C cable; documentation

    • Product Description

    Introduce the rider you are today to the one you’ll be tomorrow. The Edge® 840 Solar touchscreen cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor. It helps you manage your efforts by providing power targets throughout a course plus stamina insights, so you know how much gas is left in the tank. Ride longer with solar charging, and get superior accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology. It features button controls that work in any environment matched with a responsive touchscreen so you can tap, pan and swipe on the fly. Whether you’re riding roads, trails, gravel or indoor, you can benefit from insights and workouts that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones.

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    Product Warranty: For warranty information about this product, please click here

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    Customer reviews

    4.5 out of 5 stars
    230 global ratings

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    Customers say

    Customers find the GPS cycling computer easy to use and set up. They appreciate its functionality, including sensors and a touch screen. The product provides them with useful data from their workouts and powerful metrics. Customers also like the battery life, quality, and screen brightness.

    AI-generated from the text of customer reviews

    Select to learn more

    Value for moneyEase of useFunctionalityData qualityTouch screenBattery lifeQualityScreen brightness
    16 customers mention "Value for money"12 positive4 negative

    Customers appreciate the value for money of the product. They say it's worth the upgrade, a good replacement for the 510, and an upgrade over the Edge 820.

    "Great upgrade" Read more

    "...This one is no exception. It is a nice upgrade over the Edge 820 I had been using." Read more

    "...I'm glad I did, it's a feature I didn't know I needed - but worth the extra cost in my opinion." Read more

    "...I kind of wish the 1040 also had all the buttons. Worth the upgrade! 100% recommend if you don't want a huge unit like the 1040." Read more

    13 customers mention "Ease of use"11 positive2 negative

    Customers appreciate the GPS navigation system's user-friendly interface and simple setup process. They find it easy to make changes through the app and touch screen, and enjoy its excellent battery life.

    "...Garmin knows how to make the battery last forever and it’s been easy to use." Read more

    "...I have watched as their products have become more reliable and user-friendly...." Read more

    "...First, the good. The interface is great. It's very intuitive and things are as you would expect...." Read more

    "Works very good and easy to use!" Read more

    9 customers mention "Functionality"7 positive2 negative

    Customers like the functionality of the product. They mention it works well with sensors, has all the functions of the 510 and more. The touch screen works great, even in rain or perspiration.

    "...data you want, it syncs easily with my Fenix 7S Pro, and it works great with the sensors...." Read more

    "...This thing works great most of the time and honestly can’t believe I biked for 2 years without it...." Read more

    "...Syncing up all the various components and sensors is seamless and works right, every time...." Read more

    "...uploading of Garmin files for Support to review and, of course, a non-working 840 while I waited for a resolution that Support could not provide." Read more

    8 customers mention "Data quality"8 positive0 negative

    Customers appreciate the product's data quality. They find it provides a set display of basic information and powerful metrics for their next ride. The device is customizable to show the data they want, syncs easily with other devices, and has many features like a touch screen. They say it provides good health information to analyze and motivate them to make smarter fitness decisions.

    "...It's a lot of good health information to analyze to make smarter fitness decisions. Like the 840 because it starts instantly, no waiting...." Read more

    "Nice quality of life improvement having a set display of some basic information!" Read more

    "...'m fully invested into their ecosystem and I love the integrated metrics their devices provide, so I thought it was a no brainer to upgrade my Edge..." Read more

    "...There's so much you can fiddle with. Incredibly customizable with every feature you can think of. The ClimbPro feature stands out as my favorite...." Read more

    7 customers mention "Touch screen"7 positive0 negative

    Customers like the touch screen and buttons on the GPS navigation system. They appreciate the control of the buttons and the ease of use of the touchscreen.

    "...For both activities, I've been beyond impressed. I love the touchscreen, the colors, and graphics. Highly recommend!" Read more

    "...The 840, unlike the 830, also has buttons which work effectively and quickly. The new GPS chip is far more accurate than in the past...." Read more

    "...Great responsive touch screen. I can easily see the screen in the daytime...." Read more

    "...The 840 has a very good color screen. It has a touch screen as well as side buttons. It has all the functions of the 510 and then some...." Read more

    5 customers mention "Battery life"5 positive0 negative

    Customers appreciate the GPS navigation system's battery life.

    "...Garmin knows how to make the battery last forever and it’s been easy to use." Read more

    "...The ClimbPro feature stands out as my favorite. Battery life is excellent as well...." Read more

    "...Love the easy navigation. Excellent battery life." Read more

    "This unit was easy to set up and works great. The battery life is impressive!" Read more

    5 customers mention "Quality"5 positive0 negative

    Customers are satisfied with the GPS navigation system's quality. They find it reliable and user-friendly, providing a set display of basic information. Some reviewers mention it improves their quality of life.

    "...The Edge 840 is the latest, and in my opinion, the best of their head units. Everything works and works well...." Read more

    "Nice quality of life improvement having a set display of some basic information!" Read more

    "...The Garmin itself is awesome and I am very happy with it. No problems connecting a heart rate monitor or connecting to my phone...." Read more

    "...Makes biking a wireless experience. It looks good and the quality is great. Love the easy navigation. Excellent battery life." Read more

    5 customers mention "Screen brightness"5 positive0 negative

    Customers like the screen brightness. They say it has a good color screen, looks good, and the quality is great. They love the easy navigation, nice interface, touchscreen, and graphics. However, some customers report short battery life with the high screen brightness.

    "...I love the touchscreen, the colors, and graphics. Highly recommend!" Read more

    "...The 840 has a very good color screen. It has a touch screen as well as side buttons. It has all the functions of the 510 and then some...." Read more

    "...Makes biking a wireless experience. It looks good and the quality is great. Love the easy navigation. Excellent battery life." Read more

    "Awesome. Nice and easy interface. What I like the most is the music control widget...." Read more

    Awesome. Nice and easy interface. What I like the most is the music control widget.
    5 out of 5 stars
    Awesome. Nice and easy interface. What I like the most is the music control widget.
    This is my first cycling computer, and even though I haven’t used one before, the interface of the Garmin 840 is really practical. I chose this model because it includes a widget to control the music playing on your cellphone. So far, I’m totally happy with it. It offers the same functions as the Garmin 1040 but in a more compact size.
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    Top reviews from the United States

    • Sonya Weasner
      5.0 out of 5 stars Awesome bike computer!
      Reviewed in the United States on January 15, 2024
      Style: Edge 840 Bundle with SensorsVerified Purchase
      This is my first cycling computer and I absolutely love it. The screen size fits in tons of data, you can customize it to see the data you want, it syncs easily with my Fenix 7S Pro, and it works great with the sensors. I've used it for both outdoor rides and indoor rides on a bike trainer (Wahoo Kickr). For both activities, I've been beyond impressed. I love the touchscreen, the colors, and graphics. Highly recommend!
      8 people found this helpful
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    • Rhett T.
      5.0 out of 5 stars Much easier to use
      Reviewed in the United States on February 18, 2025
      Style: Edge 840Verified Purchase
      Great upgrade
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    • Chuckykhan
      5.0 out of 5 stars Love this new Garmin 840
      Reviewed in the United States on June 29, 2023
      Style: Edge 840 Bundle with SensorsVerified Purchase
      Garmin is becoming my go to company for measurements. I have the S2 scale for weight. The HRM Pro Plus Blood Pressure Monitor, the Garmin Power Pedals, the Heart Rate Monitor Pro Plus, my Garmin Radar Light Varia 515 (non video camera) and now this fantastic Garmin Edge 840 Cycle Computer. All these are integrated and synced to the Garmin Connect App. It's a lot of good health information to analyze to make smarter fitness decisions. Like the 840 because it starts instantly, no waiting. Gives me around 63 measurements in a single ride. It's pretty speedy. I got the 1040 but didn't like it. I like this smaller size. Links with Strava. It's pricey but all Garmin is pricey. Measure to Motivate. I'm 70 and I can still ride 100 miles. I generally do 20 mile rides 3 or 4 times a week. Love this pairs with Shimano dI2 shifters so I have a visual of what gear I'm in and the radar lets me know vehicles behind me accurately. Recommended.
      16 people found this helpful
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    • Devvin
      4.0 out of 5 stars Oh Garmin
      Reviewed in the United States on December 24, 2024
      Style: Edge 840Verified Purchase
      How I love Garmin.
      Like Apple once you get one you will eventually want them all.
      Like a demanding wife who wants more jewelry Garmin has me buying the whole ecosystem. Don’t buy this unless you plan to buy a heart rate strap, a radar light, power pedals, a watch, an emergency radio, and a trainer.

      This thing works great most of the time and honestly can’t believe I biked for 2 years without it. Garmin knows how to make the battery last forever and it’s been easy to use.
      Helpful
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    • Imejasan_Photog
      5.0 out of 5 stars Best Garmin head unit yet
      Reviewed in the United States on August 25, 2023
      Style: Edge 840Verified Purchase
      I have been a Garmin user for many years. I love all their products. I have watched as their products have become more reliable and user-friendly. The Edge 840 is the latest, and in my opinion, the best of their head units. Everything works and works well. The wireless sensors, the rear radar unit, the front headlight, the HR monitor—they all work great together.

      Syncing up all the various components and sensors is seamless and works right, every time. As a bonus I can sync up my Dexcom G7 CGM and get instant glucose readings during my bike rides—no more fear of bonking during a long ride. The touch screen works great, not even raindrops, or perspiration, affects the display. The 840, unlike the 830, also has buttons which work effectively and quickly. The new GPS chip is far more accurate than in the past. The Climb Pro feature is awesome. The 840 has far more features that I could ever hope to use, but the features that I do use work exceedingly well.

      If you are deciding between the 840 and the 540, I would recommend the 840.
      7 people found this helpful
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    • Michael Trsinar
      5.0 out of 5 stars Great QOL Improvement
      Reviewed in the United States on October 22, 2024
      Style: Edge 840Verified Purchase
      Nice quality of life improvement having a set display of some basic information!
      One person found this helpful
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    • Da Momster
      5.0 out of 5 stars Can’t go wrong
      Reviewed in the United States on February 27, 2024
      Style: Edge 840Verified Purchase
      I love this Garmin, already has the trail map for the trail I ride. Great responsive touch screen. I can easily see the screen in the daytime. The handle bar mount for the mountain bike is just OK, it works but I don’t like using the plastic bands that it takes to fasten it and I also don’t like the position of the Garmin in the bars so I purchased a third party mount that places the Garmin over my stem. The Garmin itself is awesome and I am very happy with it. No problems connecting a heart rate monitor or connecting to my phone. It uploads my rides to my phone without issue. I would recommend to anyone.
      10 people found this helpful
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    • ScottD
      3.0 out of 5 stars Solar is just not there
      Reviewed in the United States on October 9, 2023
      Style: Edge 840 SolarVerified Purchase
      Admittedly I'm a Garmin fanboi. I'm fully invested into their ecosystem and I love the integrated metrics their devices provide, so I thought it was a no brainer to upgrade my Edge 530 to an Edge 840 Solar.

      First, the good. The interface is great. It's very intuitive and things are as you would expect. Configuring data screens on your phone vs on the Edge itself is SOO much easier.

      Full time ClimbPro, without have a route loaded. This is good, but it seems to have the bug that DC Rainmaker and GPLlama and a whole host of other Youtubers has described. It will often start well in to a climb and just be off. I'll be at a steep section and ClimbPro will show me at a mild section, and vice versa. Then I'll crest the top and it will show there are still a couple hundred feet to go. I'm confident this will eventually get fixed, but until then it's kind of just a gimmick, it used to be great when it worked.

      Now for the Solar. I give Garmin a lot of credit for the innovations of adding solar, as far as I know, no one else is doing it and you can bet they are now looking at it. That said, it's not worth the premium. I live in Colorado, we have bright sun all day long here. I did a 2hr ride at dusk at 5pm, had the Edge flat like Garmin suggests, got zero solar time. Ok, so it was encroaching on evening you say? Well, I did a 2.5hr ride at 11am, in bright full sun, I got 14min back. A couple days later I did a 2hr 1pm ride in bright full sun and got 9min back. Not only that, but the solar screen on the 840 is dimmer in contrast, so you have to run a lot more brightness to see it, which sucks the battery big time. The battery widget now shows you estimated time remaining as you change brightness.

      Overall, is it a worthwhile upgrade over the 530, probably, but not the solar, go with the non-solar.
      18 people found this helpful
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    Top reviews from other countries

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    • Mkoz
      5.0 out of 5 stars Great bike computer
      Reviewed in Canada on February 17, 2025
      Style: Edge 840Verified Purchase
      Lots of data and features. Good size for viewing.
      Report
    • JayZ471
      5.0 out of 5 stars You pay for Quality
      Reviewed in Canada on April 4, 2024
      Style: Edge 840 SolarVerified Purchase
      Second Garmin cycling computer I have purchased. Great quality out-of-the box.
      Report
    • valeria chacon
      1.0 out of 5 stars la batería no cargó nunca al 100%
      Reviewed in Mexico on October 9, 2023
      Style: Edge 840 SolarVerified Purchase
      lo conecte a su cargador al recibirlo y después de 12 horas conectado nunca pasó del 70% al desconectar y volver a conectar la batería bajaba su carga a 50% y volvía a cargar lentamente sin subir del 70% lo devolví a las 24horas
      Report
    • Emanuel R
      5.0 out of 5 stars Excelente ciclocomputadora
      Reviewed in Mexico on July 24, 2023
      Style: Edge 840Verified Purchase
      La calidad de Garmin se nota en este producto, tiene una curva de aprendizaje muy rápida, cambio su diseño respecto a la versión anterior el 830, este nuevo modelo es de pantalla táctil y aparte trae botones por lo que puedes usarlo de ambos modos; su navegación es muy rápida, ya vienen precárgadas las subidas de México, anteriormente tenías que cargar una ruta para que te marcara las subidas pero ahora detecta por donde vas y te muestra una gráfica de la subida, distancia e inclinación, trae también el sistema que te marca la fatiga, calculando tu pulso cardiaco mediante una Banda, estima cuánta energía tienes para realizar una ruta, es un aproximado interesante, además de que tiene muy buena conectividad, lo encuentras a mucho mejor precio aquí, solamente revisa periódicamente las ofertas
      Report
    • FABIO SANTANA DE FREITAS
      5.0 out of 5 stars Produto 100%
      Reviewed in Brazil on July 23, 2023
      Style: Edge 840 SolarVerified Purchase
      GPS top!!! Vendedor muito atencioso e rápido!
      Report