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Garmin Fenix 6 vs. Suunto 9 Peak vs. Polar Grit X: Which is Best for You?

Garmin Fenix 6 vs. Suunto 9 Peak vs. Polar Grit X: Which is Best for You?

    Garmin, Suunto, and Polar are some of the most well-known smartwatch brands around. The three companies offer a lot of different watch lines suited for different kinds of people. Among three brands, Garmin Fenix 6, Suunto 9 Peak, and Polar Grit X are more sporty watches. But which one is best for you? Which to pick? For everyone to buy a dedicated sports watch. We have made an in-depth comparison of these three products here, let's check out!

Garmin Fenix 6, Suunto 9 Peak, and Polar Grit X Comparison

Garmin Fenix 6Suunto 9 Peak Polar Grit X
Price$599.99 $569 $429.95
Display Resolution260×260 pixels 240×240 pixels 240×240 pixels 
Water Resistant10 ATM



Waterproof (WR100)
Heart Monitor 

Sapphire Glass Display 



0.75″ x 12.65″ x 8.42″ 1.69 x 1.69 x 0.42 "

Steel: 85 g (case only: 

62 g)

Titanium: 72 g (case 

only: 48 g)

62 g / 2.19 oz 

64 g with wristband, 

44 g without wristband.

Battery Life

Smartwatch: Up to 14 days/16 days with solar;

Battery Saver Watch 

Mode: Up to 48 days/80 days with solar;

GPS: Up to 36 hours/40 hours with solar;

GPS + Music: Up to 10 hours;

Max Battery GPS Mode: Up to 72 hours/93 

hours with solar;

Expedition GPS Activity: Up to 28 days/36 days with solar;

Solar charging, assuming all-day wear with 3 

hours per day outside 

in 50,000 lux 


Solar charging, assuming use in 50,000 lux 


In time mode14 days ;

With 24/7 tracking and mobile notifications7 

days ;

Training mode with 

GPS25h / 50h / 120h / 170h ;

346 mAh Li-pol 

battery. Battery life up to 40 h in training 

mode (GPS and 

wrist-based heart rate) or up to 7 days in 

watch mode with 

continuous heart rate

 tracking. Multiple 

power save options 


Touch Screen×
Global PositioningGPS, GLONASS, GalileoGPSGPS

Warranty Length

Limited 1-Year 


Limited 1-Year 


Limited 2-Year 

Warranty. Polar 

Electro Oy/Polar 

Electro Inc. guarantees the original consumer/purchaser of the Polar product that the 

product will be free 

from defects in 

material or 

workmanship for two (2) years from the date of purchase, with the 

exception of 

wristbands made of 

silicone or plastic, 

which are subject to a guarantee period of one (1) year from the 

date of purchase.

1. Garmin Fenix 6

The Garmin Fenix 6 sits right at the top of the extensive tree of Garmin watches, and represents the best of everything the company has to offer right now. The sixth series comes in what seems like a million different skews depending on what you’re looking for in a multi-sports or running watch. Garmin Fenix 6 is suitable for various outdoor sports, such as gym & fitness, running, golfing, cycling, swimming and so on.

The Fenix series is a family of fitness trackers that pretty much has it all when it comes to outdoor fitness and adventure tracking. Stepping things up a notch, Garmin released the Fenix 6 range in August 2019, offering users a slight update in design and some welcome new features over the Fenix 5 Plus.

Here's what's totally new/changed in the Fenix 6 series:

  • Split product line into two portions: Pro and Base. Pro has WiFi, Maps, Music, Golf Maps;

  • There are three sizes of watches: 42mm (Fenix 6s), 47mm (Fenix 6), 51mm (Fenix 6X);

  • Adds solar charging to Fenix 6 Pro Solar: Termed “Power Glass”, this will increase battery life on sunnier days;

  • Adds Trendline Popularity Routing Visibility (Pro): This allows you to actually see the ‘heatmaps’ on your device;

  • Adds map display themes: This includes high contrast, popularity, marine, dark, and outdoor;

  • Adds new widget glances concept: Basically shrinks widgets to 1/3rd the screen size, so you can see three at once;

  •  Adds new PacePro feature: This replaces old-school paper race pace bands, creating pace targets for race based on grade/reverse splits/etc…

  • Adds new Power Manager feature: Gives detailed information about the impacts/tradeoffs of features on battery life;

  • Adds new Power Modes feature: Allows you to create custom power/battery modes, with time remaining per activity;

  • Adds new MARQ Expedition ultra-long mode: For multi-week GPS activities. Basically shuts off everything except reduced rate GPS tracking;

  • Adds ski resort maps: These started on the MARQ series, with 2,000 ski resorts worldwide;

  • Adds golf maps pre-loaded: Previously you had to manually load these one by one, also, more detailed golf features;

  • Adds support for wrist-based swimming HR: This was teased recently on the FR945 beta updates;

  • Adds new ultra-low battery mode: Gets up to 80 days of battery life, but super basic watch functionality only;

  • Revamped ClimbPro with new coloring: Now matches the Edge 530/830 styling;

  • Increased data fields per page: Up to 8 fields on the 6X, and up to 6 fields on the 6S/6;

  • Increased screen size and reduced bezel (varies by model, but up to 36% bigger screen size on the 6X;

  • Reduced ‘lug to lug distance’ on Fenix 6S: This should help those with smaller wrists, more on this later;

  • Reduced thickness of all devices. The 6S shrunk by 10%, the 6 by 7%, and the 6X by 15%;

  • Changed from MediaTek GPS chipset to Sony GPS Chipset: Like every other new Garmin 2019 device;

  • Battery life increased: Up to 80 days in battery saver mode for 6X, and up to 120hrs in max battery mode for 6X.


Pros of the Fenix 6:

1. Solars power capability for the Fenix 6 Pro Solar.

2. Different sizes and capabilities (all based on the money you want to spend).

3. Targeted workouts with accompanying stats, metrics, respiration rate, PacePro feature, and newer applications designed specifically for athletes.

4. Music and maps capability in the more expensive (Pro) versions of the watch.

5. You can customize the watch face for the look you want.

6. Stress reaction metrics to balance rest and stressful moments in your life. On top of this, the Fenix 6 provides sleep monitoring.

7. The trademark Garmin GPS and navigation functionality.

Cons of the Fenix Series 6:

1. The watch itself is expensive! The newest model means that the price tag can be pretty steep when compared to lower-end models. If this is not your first rodeo though, consider investing in the newest that Garmin has to offer.

2. Maybe a little bit overkill with all of the features. Depending on how hardcore of a watch enthusiast you are, another of the cheaper Garmin options – like the Forerunner 35 – might be worth a look.

3. It doesn’t look all that pretty or stylish when compared to the smaller, less cumbersome watches out there.

Where to Buy Garmin?

You can go Garmin Official Website , and don't forget to sign up at Extrabux (What is Extrabux?) , then you can get 6% super cashback from Extrabux! Sign-Up Bonus: Free to join it & get $20 welcome bonus!

2. Polar Grit X

The Polar Grit X outdoor multisport watch is an uncompromising combination of rugged and durable, yet lightweight design, top training features and the possibilities of Polar Flow, the ultimate training platform.

The Polar Grit X aims primarily at runners and athletes, with a heavy emphasis on long distance. It is also a very strong option for tracking a wide variety of other activities, and a compelling health tracker for general users. With an appealing design, a huge number of features, (mostly) accurate tracking, and amazing endurance, it has a lot going for it.

Polar Grit X comes with built-in GPS, compass and altimeter in training mode, and Polar’s unique Smart Coaching features that make sure you’re ready for your future adventures.

  • Hill Splitter

  • FuelWise smart fueling assistant

  • Training Load Pro

  • Running Index

  • Route guidance

  • Route planning with Komoot

  • Running Program

  • Smart Calories

  • Advanced wrist-based heart rate

  • Weather

  • Training Benefit

  • Continuous Heart Rate

  • FitSpark training guide

  • Nightly Recharge

  • Sleep Plus Stages

  • Serene breathing exercise

  • Running Power

  • Sport profiles

  • Fitness Test

  • Swimming metrics

  • Energy sources

  • Phone notifications

  • Strava Live Segments


Polar originally entered the GPS category from a long-established body of work in heart rate measurement and exercise science. Their Vantage watches, released in 2018, combined their vast inventory of physiological metrics, training assessment and smart coaching with advanced-level daily activity tracking capabilities, making it ideal for multisport endurance athletes. The Grit X progresses the evolution even further, adding more robust navigation options and new features geared specifically toward the mountain trail athlete. Additionally, the impressive battery life of the Vantage is further extended on the Grit X to provide 40 hours in 1-second GPS mode, with power-save options that reach up to 100 hours. The Grit X stands as the most robust model in the Polar lineup but maintains a sleek product design that is comfortable and convenient to use.

Pros of the Polar Grit X:

1. Lots of useful health insights.

2. Huge variety of sports profiles.

3. Rugged.

4. Fleshed out health tracking.

5. Incredible battery life.

6.Training recommendations.

Cons of the Polar Grit X:

1. Extremely limited smartwatch features.

2. Interface can be unintuitive.

3. No automatic activity detection.

4. Sleep detection can be hit or miss.

5. Somewhat large and potentially uncomfortable.
6. Not as accurate as some of the competition.

Where to Buy Polar Watches?

You can go to buy Polar watches, then you can get 5% cash back.

3. Suunto 9 Peak

Designed for the peak experiences that sport makes you feel, for the adventures that stay with you forever. The Suunto 9 Peak is the thinnest, smallest and toughest watch Suunto has ever made. Suunto 9 Peak All Black uses stainless steel for strong metal construction built for purpose. The color matched premium coating gives the watch a look and feel beyond measuring.










The Suunto 9 Peak is in many ways still the same software you’d find on a previous Suunto 9 unit. Thus it’s a full-featured multisport watch that connects to Bluetooth sensors and syncs all that data to your phone via the Suunto App, and then onwards to TrainingPeaks, Strava, and countless other partners. If you’ve had a Suunto 3/5/9 watch in the past (or a Suunto Spartan series watch), you’ll be pretty familiar with the core of the Suunto 9 Peak – most of it hasn’t changed.

However, there are a pile of things that have changed:

  • New exterior design, far thinner at 10.6mm (compared to 15.4mm on the Suunto 9 Baro)

  • New 1.2” trans reflective display

  • New optical heart rate sensor from LifeQ (same company as on Suunto 7)

  • New blood oxygen/Sp02 sensor

  • New magnetic charging cable design (doesn’t need to be precisely placed anymore)

  • New fast charging (1hr to full, versus 4hrs to full previously)

  • New Snap to Route GPS track option

  • New Tour Mode (this technically was added to Suunto 9 Baro two months ago though)

  • New wireless firmware updates over Bluetooth Smart

  • New ambient light sensor for automatic backlight illumination

  • New light (white) watch face themes (as opposed to black only)

  • New Suunto App first use pairing (to sync in your profile + date/time)

  • New SuuntoPlus Ghost Runner screen option

  • New standard 22mm watch straps (woot!)

  • All Suunto 9 units include a barometric altimeter (previously, the lower-end Suunto 9 didn’t)


  • Stylish, slim and lightweight

  • Fantastic battery life with fast charging

  • Class-leading activity tracking

  • Genuinely useful health insights

  • Impressive appearance and high quality


  • Bit of a learning curve

  • Laggy display with a chunky bezel

  • GPS problems with open water swimming

  • Menu somewhat slow

Where to Buy Suunto?

You can go Suunto to buy Suunto 9 Peak!

Verdict for Garmin Fenix 6 vs. Suunto 9 Peak vs. Polar Grit X

It’s clear that the Fenix 6 is our winner pick. It is clear and easy to use, the user interface and software is robust, it has many useful functions, wide App support, and is comfy on your wrist. It may not look as good and rugged as the Suunto 9 Baro, but what it lacks in aesthetics it makes up for with substance. The Suunto 9 Baro is a good looking watch with lots of promise, but the low-grade touchscreen and poor software mean that it will not track what you need when you need it. The Suunto 9 Peak, however, is a major improvement in this regard and is a much better rival to the Fenix where in some of the features it even beats it.

In addition, core features of Fenix 6 like mapping feel a bit better executed than it is on the Grit X. You do still get big battery life and plenty of more outdoor-focused metrics to delve into. 

If you want something that's a good mix of sports watch and smartwatch features, it's the Fenix 6 that gets out our vote too. Simply for the fact there are more smarts on board and you similarly get a wealth of sports modes like you do on the Polar.

The Grit X's FuelWise is certainly a nice addition and definitely something that Polar has over on Garmin in terms of thinking more about fuelling and hydration during long exercise sessions.

It's important to keep the price in mind here too. Even the cheapest Fenix 6 is still more expensive than the Grit X. 

2021-12-22 23:437415