Best Smartwatch for Fitness with GPS – Top Picks

I’ve spent the last six months beating up over 15 fitness-focused smartwatches on running tracks, hiking trails, and in swimming pools. I wanted to find out which ones actually hold up when you’re training seriously—not just when you’re sitting at a desk reading specs.

The Apple Watch Ultra 2 is my top pick for most people. It nails GPS accuracy, feels built to last, and tracks your health better than almost anything else out there. But here’s the thing: the right watch for you depends on your sport and how much you want to spend. Let me break down what actually matters.

How We Tested These Smartwatches

My testing team and I ran these watches through identical protocols. We tracked running routes with the watches alongside a control GPS unit to see how far off they got. We timed battery life during continuous GPS use—not the optimistic numbers manufacturers claim, but real-world drain. We strapped chest monitors to our chests and compared heart rate readings during HIIT sessions. For swimming, we did pool laps and checked whether the watches correctly counted strokes and calculated efficiency.

The team includes certified personal trainers and endurance athletes who depend on accurate data for their own training. We also looked at companion app quality, how fast manufacturers push software updates, and whether the watch is comfortable enough to wear all day without wanting to rip it off.

Our Top Pick: Apple Watch Ultra 2

The Apple Watch Ultra 2 is the best overall fitness smartwatch with GPS if you want one device that does everything well. Apple clearly built this thing with athletes in mind, and it shows.

GPS Performance: The Ultra 2 uses dual-frequency GPS (L1 and L5), which keeps tracking accurate even when you’re surrounded by tall buildings or tree cover. During my tests, it stayed within a few meters of my control unit over 5K and 10K runs—matching dedicated Garmin watches step for step.

Battery Life: This is the real reason fitness enthusiasts should pay attention. You get roughly 36 hours of normal use and about 12 hours of continuous GPS tracking. That’s plenty for a marathon or a serious training run. If you’re doing multi-day ultras, you’ll want more, but for most athletes, this works.

Fitness Features: There’s a depth sensor for diving (rated to 40 meters), an altimeter for elevation, and tight integration with Apple’s Health app. Workout modes cover running, cycling, swimming, hiking, strength training—basically anything you might do.

The Downsides: It’s expensive at $799. It’s also bigger and heavier than a regular Apple Watch, which some people find uncomfortable for all-day wear. The battery still can’t touch Garmin’s dedicated outdoor watches for multi-day adventures.

Who should buy this? Anyone who wants one watch that handles daily notifications and apps plus serious fitness tracking without settling.

Best for Running: Garmin Forerunner 965

If running is your thing, the Garmin Forerunner 965 is the watch I’d recommend. Garmin has been making watches for runners for decades, and that experience shows.

The Forerunner 965 has multi-band GPS—the same dual-frequency technology Apple uses—and it delivers. I took it through downtown Chicago and wooded trail sections, and it found satellites quickly and tracked distance accurately even when I momentarily lost satellite view.

Training Features: Garmin’s training readiness score looks at your sleep, HRV, and recent workout load to tell you whether you’re ready to push hard or should take it easy. This kind of data helps runners train smarter without burning out.

Battery Performance: You get about 23 days in smartwatch mode and up to 31 hours in GPS mode. That’s nearly three times what most Apple Watch models give you, which matters when you’re training for a marathon or longer events.

Mapping and Courses: Unlike the Apple Watch, the Forerunner 965 has full-color maps and turn-by-turn navigation. You can load race routes or explore new trails without worrying about getting lost.

The trade-off is that it’s not much of a smartwatch. Notifications work, but they’re basic. The app selection doesn’t come close to Apple. If you care more about running metrics than checking Instagram on your wrist, this is the best GPS watch you can buy.

Best Battery Life: Garmin Enduro 2

If battery life is make-or-break for you, the Garmin Enduro 2 is in a league of its own. This watch can go weeks or even months between charges, depending on how you use it.

Garmin packed a huge battery inside, added solar charging, and wrote efficient software. In smartwatch mode, you get around 46 days. Turn on solar charging, and it goes even longer. In GPS mode, you’re looking at about 150 hours—that’s enough for multi-day ultramarathons or back-to-back adventures.

Beyond the battery, the Enduro 2 has everything: multi-band GPS, topographic maps, altitude acclimation, advanced training metrics, and compatibility with Garmin’s sensors like chest straps and running dynamics pods.

It’s heavy at 70 grams (the Ultra 2 is about 61 grams), but that’s the trade-off for that battery. It’s also pricey at $799, same as the Ultra 2.

For outdoor enthusiasts doing multi-day hikes, ultra-marathons, or long bike rides, the Enduro 2’s battery alone makes it worth a look.

Best Value: Garmin Forerunner 265

Not everyone needs to spend $800 on a fitness smartwatch. The Garmin Forerunner 265 gives you about 90% of what the expensive models offer at a much lower price, which is why it’s my best value pick.

What’s Included: You get the same multi-band GPS as Garmin’s flagship running watches, so tracking is excellent. Training features are nearly identical too—training readiness, recovery suggestions, and performance metrics all come standard.

Display Upgrade: This model recently switched from an MIP (memory-in-pixel) display to a vibrant AMOLED touchscreen. Colors pop, and it’s easier to read in low light. The trade-off is slightly shorter battery life compared to the old MIP versions, but you still get about 13 days in smartwatch mode and 24 hours in GPS mode.

Price: At around $449, it’s about half what the Ultra 2 or Enduro 2 costs. For recreational runners, fitness enthusiasts who work out several times a week, and anyone who wants reliable GPS tracking without emptying their wallet, this is a great deal.

The Forerunner 265 doesn’t have mapping or music storage—those features are reserved for the higher-end 965—but for pure fitness tracking, it performs exceptionally well.

Best for Swimming: Apple Watch Ultra 2 or Garmin Swim 2

For swimmers, two options stand out depending on your budget and needs.

Apple Watch Ultra 2 works great for pool and open water swimming. The depth sensor tracks your dives accurately, and Apple improved water resistance significantly over earlier models. Swim workouts automatically detect stroke type, count laps, and calculate SWOLF (a measure of swimming efficiency). The Ultra 2 can handle recreational diving to 40 meters.

Garmin Swim 2 is a cheaper alternative made specifically for pool swimming. At around $299, it focuses purely on swim metrics without the smart features. It tracks stroke count, SWOLF, distance, pace, and even rest periods automatically. It doesn’t have GPS for open water—it uses accelerometer-based tracking in the pool—but it’s extremely accurate in controlled swimming environments.

For most swimmers who also want smart features, the Ultra 2 gives you the best overall package. If you’re primarily a swimmer and want something dedicated, the Garmin Swim 2 is a solid value.

Comparison Table: Top Fitness Smartwatches with GPS

Here’s how our top picks compare on what actually matters:

All these watches track heart rate, GPS, and basic fitness metrics. Your choice comes down to your main sport, budget, and whether you want full smartwatch features.

How to Choose the Right Fitness Smartwatch

Picking the best GPS smartwatch for your needs means understanding what actually matters for your training. Here’s how to think through it.

Consider Your Primary Activity

Runners should care most about GPS accuracy and running-specific metrics like cadence, stride length, and ground contact time. The Garmin Forerunner series wins here. Swimmers need water resistance depth ratings and swim-specific tracking. Cyclists want bike mount compatibility and power meter integration. Outdoor adventurers need mapping, solar charging, and a rugged build.

Decide on Battery Requirements

If you regularly run for more than a few hours, battery life matters a lot. Trail runners, ultramarathoners, and multi-sport athletes need the extended battery life that Garmin’s Enduro or Fenix series provides. Most recreational athletes will find 12-24 hours of GPS battery sufficient for daily training and occasional long events.

Smart Features vs. Dedicated Performance

Apple Watch Ultra 2 gives you both—a capable fitness tracker and a full smartwatch with apps, calls, texts, and Siri. Garmin watches have more limited notifications but better fitness analysis. Figure out whether you want your watch to replace your phone during workouts or just track them.

Budget Reality

Good fitness GPS watches start around $250-300 and go up to $800+. More expensive models have better battery, mapping, and premium materials. The Garmin Forerunner 265 at $449 hits the sweet spot for most athletes—professional-grade tracking without the premium price.

Fit and Comfort

These watches range from around 30 grams to over 70 grams. Try them on if you can. A heavy watch becomes annoying during long workouts. Conversely, very light watches may feel flimsy or lack features.

Final Thoughts

The best smartwatch for fitness with GPS depends on how you train and what features matter most to you. The Apple Watch Ultra 2 stays my top overall pick because it combines excellent GPS tracking with the best smartwatch ecosystem, making it versatile for both daily use and serious training. The Garmin Forerunner 965 takes the crown for dedicated runners who want the most advanced training metrics. Budget-conscious buyers will find great value in the Garmin Forerunner 265, which delivers professional-grade tracking at nearly half the price.

What matters most is that you actually use the features. The most expensive watch won’t help if it sits in a drawer. Pick the one that fits your sport, your budget, and your lifestyle—and then get out there and train.

FAQs

Which smartwatch has the most accurate GPS?

Both Apple Watch Ultra 2 and Garmin’s Forerunner and Enduro series use multi-band or dual-frequency GPS, giving you the most accurate location tracking available in consumer watches. In my testing, they stayed within a few meters of each other over standard distances. Garmin has a slight edge in tough signal areas like dense forests or city centers.

Is GPS necessary for a fitness smartwatch?

GPS is essential for accurately tracking outdoor activities like running, cycling, hiking, and open water swimming. Without GPS, your watch can only estimate distance using accelerometer data, which gets increasingly inaccurate the longer you go. If you mainly track indoor workouts on a treadmill, GPS matters less, but it still provides pace and distance data for outdoor activities.

How much should I spend on a fitness smartwatch?

Plan to spend between $250 and $800. Budget options around $250-300 give you solid GPS tracking and basic metrics. Mid-range models ($400-600) add better battery life, advanced training features, and improved displays. Premium models ($700-800) have the best battery, mapping, and build quality. Most athletes find excellent value in the $400-500 range.

Can I use these watches for swimming in the pool?

Yes, all the watches I recommend handle pool swimming well. Apple Watch models track stroke type, laps, and SWOLF automatically. Garmin watches have dedicated swim profiles with similar metrics. Just make sure your chosen watch has at least 5 ATM water resistance for pool use.