The difference between the Fenix 6s and 6s pro is that the latter has onboard music storage capacity, Wi-Fi, and map including features that come with the map functionality that the former lacks.

• Design


The Fenix 6s pro and 6s have similar appearance, as well same case and display size. However, the Fenix 6s pro is built with more durable materials. In this case, a more durable DLC coated titanium bezel which will cost you more.

Moreover, while the Fenix 6s comes with silicone straps, the 6s pro gives you more options with silicone, nylon and the more decent-looking suede strap materials. Although, the Fenix 6s is available in more colors like white/white, silver/black, black/black, and light gold/gray, while the 6s pro is available in rose-gold/white (first color = case color, second color = strap color).


• Storage


The Fenix 6s pro also has a higher storage capacity than the 6s with a non-significant storage capacity. The 6s pro with 32GB allows you to take about 2000 of your favorite music tracks with you which isn’t possible with the 6s with 64MB storage. This is very beneficial for those of us who prefer to listen to which can be a source of motivation.


• Fitness Tracking


Just like all Garmin’s GPS smartwatches, the Fenix 6s pro and 6s are fitness focused and well equipped to offer you the most comprehensive fitness tracking experience. These two are no doubt some of the best GPS smartwatches on the market.

The Fenix 6s pro and 6s are well equipped to track your daily activities such as steps, calories, fitness age, distance, sleep monitoring, and all-day stress tracking.

Each of these two also features indoor gym activities such as indoor rowing, strength training, and cardio training, including in-depth training and planning analysis features that include training load, training effect and activity history on the watch.

These two also get running features such as running, treadmill running and trail running, plus heart rate sensor that tracks your heart rate variability and capable of showing your heart rate zones, max heart rate and recovery time to help you manage the intensity of your training so that you can achieve more fitness goals without breaking down.

The Fenix 6s pro and 6s have outdoor recreational features that include hiking, climbing, mountain biking, skiing, snowboarding, XC skiing, stand up paddleboarding, rowing, and jumpmaster. And cycling features such as biking, indoor biking, mountain biking, triathlon, including in-depth golf and swimming features.

Also available on these two is the body battery energy monitor feature that uses data from heart rate variability, stress, sleep, and other data to gauge when you’re ready to be active or when you may need to rest so that you train and achieve more without breaking down.

Also available is ClimbPro ascent planner with downloaded courses to help you see real-time information on your current and upcoming climbs, including gradient, distance and elevation gain.

The incident detection feature introduced to the Forerunner series is also available on the Fenix 6s pro and 6s which can help you get help when there’s an accidental fall. It sends your location to preset emergency contacts.

Also added to these two is swimming wrist-based heart rate tracking. With the Fenix 6s pro and 6s you can track your heart rate while swimming which can help you get a better insight into your swimming activities. This feature is new and for now, is exclusive to the Fenix 6 series.

Pulse Ox sensor introduced on the Fenix 5x plus is also available on the Fenix 6 series. The pulse ox sensor serves two functions; A. for altitude acclimation, where it can help you know when it’s not safe to continue climbing and B. sleep monitoring to help you see your quality of sleep. The Pulse ox sensor achieves these functions by monitoring how well your body absorbs oxygen.

However, the Fenix 6s pro with map which isn’t available on the 6s has features that come with the map functionality that the 6s lacks.


Garmin Fenix 6S	Garmin Fenix 6S Pro
Lacks trendline popularity routing visibility pro.	Trendline popularity routing visibility pro available on the 6s pro adds more features to the TOPO map allowing for more visual and analytic features to help you find the best route.
Lacks Pacepro.	Garmin added PacePro to the 6 Pro sets which includes the 6s pro. The PacePro feature enables grade-guidance that can improve your running experience.
Lacks Ski resort maps.	Skii resort maps is available on the 6s pro with over 2000 ski resorts worldwide to choose from.

• Battery Life

The Fenix 6s pro and 6s have impressive battery life that’ll see you through days on a single charge. Although these two have same estimated battery life. However, the Fenix 6s with fewer features is expected to go a bit longer than the 6s pro.

Garmin introduced new battery saver features that include the power modes which allow you to create custom battery saver modes, as well as the expedition mode featured on the MARQ series – an ultralow powered GPS reference that will keep the Fenix 6s pro and 6s going for weeks, and the battery saver mode that will keep both the Fenix 6s pro and 6s going longer for weeks.