garmin fenix 3 vs suunto ambit3 peak

Garmin Fenix 3 vs Suunto Ambit3 Peak GPS Sport Watches

GPS tracking watches are becoming extremely popular among runners and other serious athletes. If you're looking for something that goes beyond a basic run tracker, Garmin Fenix 3 (Amazon) and Suunto Ambit3 Peak (Amazon) are both great options. Whether you're competing in triathlons or ultramarathons, these devices have you covered. Read on for a review and comparison of the Garmin Fenix 3 vs Suunto Ambit3 Peak.

Garmin Fenix 3 vs Suunto Ambit3 Peak

Both sport watches offer exciting features and great functionality. Here, we have briefly summarized each watch and the most notable pros and cons of each. Read on for specific details about each watch.

Garmin Fenix 3


  • Impressive battery lasts up to 16 hours in GPS mode or 50 hours in "UltraTrac" mode
  • True multi-sport tracking that works for running, cycling, swimming, hiking, rowing, skiing and much more
  • Durable frame and build


  • Bulky and somewhat heavy on your wrist
  • Expensive

Suunto Ambit3 Peak


  • Accurate GPS tracking
  • Very comfortable to wear
  • Multi-sport compatibility with many different modes such as running, hiking, pool swimming, open water swimming, cycling, skiing and more


  • Low-resolution screen that can be difficult to read in the sun
  • Some watch features and configurations require use of the mobile phone app

Fenix 3 and Suunto Ambit3 Peak Common Features

Both the Garmin Fenix 3 and the Suunto Ambit3 Peak are excellent choices for multi-sport tracking, and both offer many exciting features. In fact, these two watches share several features in common.

To start off, both watches offer GPS tracking. You will be able to track your runs or other activities and view your stats right on the watch. You can also view run details, including a map, using either watch's matching phone app.

Both watches offer multi-sport tracking, with the most common activities including running, cycling, and swimming - in other words, these watches are great for triathlons and other competitive sporting events.

These two sport watches have several other features in common including weather, navigation and backtracking, compass, and a barometric altimeter. Overall, both watches are a great option for tracking any sport.

Garmin Fenix 3 Tech Specs

  • Physical dimensions: 2.0” x 2.0” x 0.6”
  • Weight: 82g
  • Battery type: Rechargeable 300mAh lithium-ion
  • Display resolution: 218 x 218 pixels

Suunto Ambit3 Peak Tech Specs

  • Physical dimensions: 1.97” x 1.97” x 0.71”
  • Weight: 89g
  • Battery type:
  • Rechargeable lithium-ion
  • Display resolution: 128 x 128 pixels

As discussed above, these two sport watches have many features in common. However, there are also some notable differences.

One main difference is the screen resolution. The Fenix 3 offers a resolution of 218 x 218 pixels, making for a beautiful display that is easy to read in the sunlight. On the other hand, the Ambit3 Peak has a resolution of only 128 x 128 pixels, which can appear grainy and may be difficult to read outdoors.

When it comes to battery life, the Ambit3 Peak has the advantage. While the Fenix 3 boasts up to 20 hours of life in GPS mode or 50 hours of use in its "UltraTrac" mode, the Ambit3 Peak allows for an amazing 200 hours of life in it's most conservative GPS mode. If long battery life is important to you, the Ambit3 Peak is the clear winner.

While both watches allow some feature use on the watch itself, the Fenix 3 is a bit more user-friendly. In order to use some features on the Ambit3 Peak, the user will need to go into the connected phone app. If you want everything to be accessible from your sports watch itself, the Fenix 3 has a leg up here.

Finally, when it comes to connectivity, the Fenix 3 supports both wifi and Bluetooth, as well as USB. The Ambit3 Peak supports only Bluetooth or USB connectivity. Both watches can be connected to either a phone or computer.

As you can see, when it's the Garmin Fenix 3 vs Suunto Ambit3 Peak, the features somewhat even each other out. Determining which watch has "better" features is ultimately up to user preference in this case.

garmin and suunto comparison

Garmin and Suunto style comparison

Both watches are stylish and available in neutral colors that will match with any outfit. While both watches may be bulky and more of a traditional "men's" style, both would look fine on either a male or female user.

The Fenix 3 comes in two colors: grey and silver. Each of these options has slight red accents; on the "silver" version, the wristband itself is red. If you like a more neutral accessory, the grey option is probably best.

The Ambit3 Peak comes in a basic black model, as well as a "sapphire" model. I use the term "sapphire" loosely because there is nothing really blue on the watch. Both models include a black wrist band, but the "sapphire" model includes a silver outer watch face. The silver face may look slightly blue in some lights.

suunto moves count vs garmin connect apps

Fitness Apps

Each watch connects to its own fitness app on the user's phone, and both relevant apps are available for both Android and iOS devices. These apps allow the users to view more detailed data from tracked activities. The apps can also be connected to social media so that users can share activities with friends and family.

In other words, both apps are fairly standard and function well. There is no clear winner here; users of both watches should be able to enjoy fitness app connectivity without issue.​


Because these watches offer so many features and are sure to last a long time, they are quite an investment. Neither watch comes cheap; you can expect to pay anywhere from $300-$500 for either.

Both watches are available for purchase directly from the retailer, but customers can typically find these watches at a discounted price through retail websites like Amazon. While both watches are pricey, the Ambit3 Peak can currently be found at a lower price than the Fenix 3.

Garmin vs Suunto bottom line

The bottom line is that, when it comes to the Garmin Fenix 3 vs Suunto Ambit3 Peak, it is hard to declare a solid winner. Both watches are able to track multiple sports accurately and with impressive battery life. Both are stylish and suitable for men and women alike.

As a potential user, you need to decide which sport watch features are most important to you. Do you find an impressive battery life to be an absolute necessity? If so, the Ambit3 Peak is the winner. On the other hand, if you value an impressive screen resolution and user-friendly interface, the Fenix 3 is your best choice.​

No matter which watch you choose, your athleticism is sure to improve with reliable tracking of all of your favorite activities!​

2017 Update

There are new versions of both these watches which now have wrist based heart rate so you no longer need to wear a chest strap to monitor your heart during an activity. 

Last update on 2021-10-26 / Affiliate links / Images from Amazon Product Advertising API

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