Best Fitness Smartwatches 2024 – Honest Reviews & Ratings

The Apple Watch Series 9 remains our top recommendation for most people in 2024. It has reliable health sensors, works smoothly with iPhones, and tracks workouts well. However, if you’re training for endurance events, the Garmin Forerunner 965 offers better GPS accuracy and more advanced training features. Below, we’ve tested and ranked the best fitness smartwatches across every price tier.

Quick Recommendation – Top 3 Fitness Smartwatches

Smartwatch	Best For	Battery Life	Key Fitness Feature
Apple Watch Series 9	Most people	18 hours	Health sensors
Garmin Forerunner 965	Serious athletes	23 days (watch mode)	GPS accuracy
Samsung Galaxy Watch 6	Android users	40 hours	Sleep tracking

Keep reading for detailed reviews of each, plus seven more options.

How We Tested These Smartwatches

We tested each watch for several weeks to see how they perform in real situations, not just what the manufacturers claim.

We focused on several areas. First, we compared heart rate readings against a chest strap monitor during different workout intensities—from easy walks to high-intensity intervals. GPS accuracy was tested in cities, forests, and open trails. We also measured actual battery life during normal use, not the optimized conditions listed on product pages.

Beyond the numbers, we evaluated the day-to-day experience. How easy is the workout app to use? Does the watch recognize different exercise types automatically? Are the recovery recommendations accurate? These factors often matter more than specifications when you’re trying to build a consistent fitness routine.

Our testing team includes casual fitness enthusiasts and competitive athletes, giving us perspectives from different user types.

Apple Watch Series 9 – Best Overall

The Apple Watch Series 9 is the most refined fitness wearable we’ve tested, offering a good balance between everyday use and serious training features.

Let’s start with accuracy. The Series 9’s optical heart rate sensor delivers consistent readings across most workout types. During our testing, it matched chest strap monitors within 2-3 beats per minute during steady-state cardio, with slightly wider margins during high-intensity intervals. The new S9 chip also enables faster GPS lock-on, so your distance and pace data starts accurate right from the first step of your run.

The fitness feature set is comprehensive. You get automatic workout detection for running, cycling, swimming, and rowing. The Activity rings provide daily goals, and the Workout app includes custom workout creation, training load tracking, and recovery recommendations based on your exertion levels.

Health monitoring goes beyond workouts. The Series 9 tracks heart rate variability, blood oxygen levels, and skin temperature, which can provide early warning signs of illness or overtraining. Sleep tracking has improved and now provides sleep stage breakdowns.

The main drawback is battery life. You’ll get roughly 18 hours between charges, which means most users need to charge daily. This works fine for everyday wear but can be limiting for ultra-marathoners or multi-day hikers.

For iPhone users willing to stay within Apple’s ecosystem, there’s no better fitness smartwatch available in 2024.

Garmin Forerunner 965 – Best for Serious Athletes

If you’re training for a marathon, triathlon, or endurance event, the Garmin Forerunner 965 is worth considering. This is a watch built by athletes, for athletes.

The most noticeable improvement over previous Forerunner models is the bright AMOLED display. Previous Garmin watches often had dim screens hard to read in direct sunlight. The 965 fixes that—you’ll have no trouble reading your pace and distance data even on a bright midday run.

GPS performance is where Garmin leads. The Forerunner 965 uses multi-band GPS technology, receiving signals from multiple satellite constellations. During our testing, this resulted in distance accuracy within 1% of actual distance across dozens of runs—a margin that matches dedicated GPS units costing twice as much.

The training features go beyond basic tracking. You get Garmin’s Training Readiness score, which analyzes your sleep, recovery time, HRV, and recent training load to tell you how ready your body is for a hard workout. This kind of data-driven guidance used to require separate apps and manual calculations, but Garmin has made it automatic.

Battery life is impressive. In regular smartwatch mode, you’ll get roughly 23 days between charges. Switch to GPS-only mode, and that extends to 31 hours. Use ultra-tramax mode for multi-day events, and you can get over 80 hours of tracking.

The trade-off is that the Forerunner 965 is less polished as an everyday smartwatch. Third-party app support is limited, the notification system feels dated compared to Apple and Samsung, and the design is clearly geared toward athletes. If you want a watch that looks appropriate in a meeting and on a trail, look elsewhere. But if performance is your priority, this wins.

Samsung Galaxy Watch 6 – Best Android

Android users have had fewer premium fitness smartwatch options than iPhone users, but the Samsung Galaxy Watch 6 closes that gap significantly. This is the best all-around fitness smartwatch for anyone in the Samsung ecosystem.

The rotating bezel—Samsung’s signature design element—makes navigating workout apps and settings intuitive, even when you’re sweaty and mid-exercise. Physical buttons sometimes become unresponsive with moisture, but bezel navigation works perfectly in any condition.

Fitness tracking covers the essentials and adds some unique features. The Body Composition sensor provides metrics beyond basic BMI, including skeletal muscle mass, body water percentage, and basal metabolic rate. This gives you a more complete picture of your fitness progress than weight alone.

Samsung’s sleep tracking is notable. The Galaxy Watch 6 analyzes sleep stages with accuracy and provides a Sleep Score each morning. It tracks time asleep, sleep efficiency, and movement during the night, then offers personalized recommendations for improving rest.

The 40-hour battery life falls short of Garmin’s endurance but matches or beats most other Android smartwatches. Most users will charge every other day.

The main limitation is ecosystem lock-in. Some fitness features work best with Samsung phones, and the overall experience is less polished on non-Samsung Android devices. iPhone users can technically use the Galaxy Watch 6 but face significant feature limitations.

Fitbit Charge 6 – Best Budget

Not everyone needs or wants to pay for a full-featured smartwatch. The Fitbit Charge 6 proves that excellent fitness tracking doesn’t require spending hundreds of dollars. At roughly $160, this is our top pick for budget-conscious fitness enthusiasts.

Despite the lower price, the Charge 6 includes most features that matter for fitness tracking. You get 24/7 heart rate monitoring, built-in GPS (no phone required), over 40 exercise modes, and Fitbit’s sleep tracking. Google integration adds Google Maps for turn-by-turn directions during outdoor workouts and YouTube Music controls.

The form factor is worth considering. The Charge 6 is a fitness band, not a smartwatch—it has a small vertical display and limited smart features beyond notifications. You won’t be replying to messages or installing apps on your wrist. But what you lose in smartwatch functionality, you gain in comfort and battery life. The Charge 6 lasts about seven days between charges, far longer than any full smartwatch.

For someone who wants accurate fitness tracking without the complexity or cost of a premium smartwatch, the Fitbit Charge 6 delivers good value. It’s also an excellent choice for fitness-focused individuals who already have a nice everyday watch and don’t want to wear something bulky 24/7.

Garmin Venu 3 – Best Hybrid

The Garmin Venu 3 sits between the sport-focused Forerunner line and everyday smartwatches. If you want serious fitness tracking without looking like you’re about to run a marathon every time you check the time, this is the watch for you.

The design is dressy—slip this under a blazer and nobody would guess it’s packed with advanced sports tracking. Yet beneath that refined exterior lies most of Garmin’s training technology. You get the same Training Readiness scores, recovery recommendations, and GPS accuracy as the Forerunner 965.

The Venu 3 also introduces useful everyday features that previous Garmin watches lacked. The on-wrist speaker lets you take phone calls directly from the watch—a feature that sounds gimmicky until you’re mid-workout and need to answer a call without stopping. You can also use the watch to trigger your phone’s voice assistant.

Battery life is about 14 days in smartwatch mode or 26 hours with GPS. That’s plenty for most users but noticeably less than the Forerunner 965 if you’re planning ultra-endurance events.

The main competitor here is the Apple Watch, which offers better everyday smart features but less athletic capability. If your priority is looking good while staying fit rather than optimizing every training variable, the Venu 3 is the right choice.

Apple Watch Ultra 2 – Best Premium

The Apple Watch Ultra 2 is Apple’s most rugged and feature-packed fitness watch, designed for endurance athletes, adventurers, and anyone who pushes their body to extremes.

The case is larger and more robust than standard Apple Watch models, with a 49mm titanium case that handles impacts, depth pressure, and extreme temperatures. The display is notably brighter—3,000 nits compared to 2,000 nits on the Series 9—making it readable in direct sunlight no matter how intense your outdoor workout.

Battery life has been a weakness of Apple Watches, and the Ultra 2 addresses it directly. You’ll get 36 hours of normal use, but a Low Power Mode extends that to 72 hours—enough for multi-day adventures where charging isn’t practical. GPS tracking extends to 35 hours in optimized mode.

The action button is a small but meaningful addition. You can program it to start a specific workout, mark a lap, or trigger dozens of functions without fiddling with the touchscreen. During intense exercise, this physical control is far more reliable.

The price is steep—starting at $799—but if you’re serious about fitness and want the best possible Apple ecosystem integration, the Ultra 2 delivers an unmatched combination of everyday usability and serious athletic capability.

Whoop 4.0 – Best for Performance Optimization

The Whoop 4.0 takes a different approach to fitness tracking. Rather than focusing on workout data during exercise, Whoop emphasizes recovery analysis and strain management to help you train smarter.

Instead of a watch with a display, Whoop wears as a band around your forearm. This positioning provides more accurate heart rate readings than wrist-based sensors, according to Whoop’s research. The lack of display means you interact with the app for all data review, which actually encourages more deliberate analysis of your metrics.

The Strain Coach feature is particularly valuable. It tells you what intensity target to aim for each day based on your recovery status, helping you avoid both undertraining and overtraining. This kind of guidance helps prevent the common mistake of pushing hard every day regardless of how well-rested you actually are.

The subscription model may bother some users. Unlike traditional smartwatches where you pay once, Whoop requires an ongoing monthly fee for full access to features and insights. That said, many serious athletes find the personalized training guidance worth the ongoing investment.

Whoop isn’t for everyone. If you want a watch that displays notifications, runs apps, and looks good with casual clothes, you’ll be disappointed. But if your goal is optimizing athletic performance through better recovery management, Whoop delivers unique value.

Google Pixel Watch 2 – Best for Google Ecosystem

The Google Pixel Watch 2 brings Google’s design and software integration to the fitness smartwatch space. If you live in Google Maps, use Gmail, and rely on Google Fit, this watch integrates more seamlessly than any competitor.

The design is elegant—perhaps the most attractive fitness smartwatch available. The circular face and minimalist aesthetic look great with any outfit, and the smaller case size accommodates wrists that find Apple’s 45mm cases bulky.

Fitness tracking uses Google’s Fit platform, which has improved but still trails Apple and Garmin in advanced training features. You get the essentials: heart rate tracking, GPS, workout detection, and sleep monitoring. Google’s AI-driven recovery insights provide personalized recommendations based on your activity patterns and rest data.

The 24-hour battery life is the Pixel Watch 2’s main weakness. You’ll need to charge daily, which can be inconvenient if you like to track your sleep. The original Pixel Watch had notorious battery issues, and while the sequel improves things, it still falls short of competitors.

For Google-centric users who prioritize ecosystem integration over raw fitness features, the Pixel Watch 2 is a solid choice.

Fitness Features Comparison – What Really Matters

With so many options, it’s worth understanding which features matter for your goals.

Heart Rate Monitoring: All watches on this list offer optical heart rate sensors, but accuracy varies. For casual users, any modern fitness watch provides sufficient accuracy. Serious athletes should prioritize watches with multi-band GPS and proven HR accuracy during high-intensity intervals.

GPS Tracking: Built-in GPS (no phone required) is essential for outdoor runners, cyclists, and hikers. All recommendations above include this feature, but GPS accuracy varies. Garmin leads here, with Apple and Samsung close behind.

Sleep Tracking: Recovery is as important as workouts. Apple and Samsung have invested heavily in sleep tracking, making them competitive with Fitbit and Garmin.

Water Resistance: Swimming tracking requires at least 5ATM water resistance. All watches listed meet this standard.

Battery Life: If you hate charging daily, prioritize Garmin or Fitbit. If you want smart features and can charge nightly, Apple and Samsung offer more polished experiences.

How to Choose the Right Fitness Smartwatch

Finding your perfect fitness smartwatch comes down to matching features to your actual needs.

Your Primary Activity: Runners and cyclists should prioritize GPS accuracy (Garmin leads here). Swimmers need excellent water resistance and pool tracking. Casual fitness enthusiasts may not need advanced features.

Ecosystem Matters: An Apple Watch with an Android phone limits functionality significantly. Similarly, Samsung watches lose features with non-Samsung Android devices. Choose your ecosystem first.

Battery Expectations: If you track multi-hour activities or hate daily charging, battery life should be a primary factor. Garmin easily wins here.

Smartwatch vs Fitness Band: If you want notifications, apps, and phone-free music, you need a full smartwatch. If you just want workout tracking and health monitoring, a fitness band like the Fitbit Charge 6 delivers the essentials at a lower price.

Conclusion

After testing dozens of fitness smartwatches, we’re confident there’s no single “best” option for everyone. The Apple Watch Series 9 earns our overall recommendation for most people due to its balance of fitness tracking, everyday usability, and ecosystem integration. Serious athletes should look to the Garmin Forerunner 965 for unmatched GPS accuracy and training insights. Android users committed to their platform will find the Samsung Galaxy Watch 6 delivers the most complete package. Budget-conscious buyers can’t go wrong with the Fitbit Charge 6, which delivers core fitness tracking at a fraction of the premium price.

Whatever you choose, the best fitness smartwatch is the one you’ll actually wear consistently. All of these options provide accurate tracking and useful insights—the right one for you depends on your specific needs, priorities, and budget.

FAQs

Which smartwatch is most accurate for fitness tracking?
Garmin watches generally offer the most accurate GPS tracking, with multi-band technology delivering distance accuracy within 1% of actual distance. Apple Watch Series 9 provides excellent heart rate accuracy that matches chest strap monitors during most workouts.

Do I need GPS in my fitness smartwatch?
If you run, cycle, or hike outdoors, built-in GPS is essential for accurate distance and pace tracking. Without it, your phone must be with you, which can be inconvenient and less accurate. Indoor workouts don’t require GPS.

How long do fitness smartwatches typically last?
Most quality fitness smartwatches last 4-5 years with reasonable care. Battery degradation is the most common reason for replacement, as capacity naturally declines after a few years of daily charging.

Is the Apple Watch good for serious athletes?
Yes, the Apple Watch Ultra 2 specifically targets serious athletes with extended battery life, rugged construction, and advanced training features. The standard Series 9 works well for recreational athletes but has limitations for endurance events.

Can I track swimming with these watches?
All smartwatches recommended here offer at least 5ATM water resistance, making them suitable for pool swimming. More advanced swim tracking features (stroke detection, lap counting) vary by brand, with Apple and Garmin offering the most detailed pool analytics.