Our verdict

For iPhone owners, the Apple Watch SE 3 is the pick; go Galaxy Watch 7 on Android, Garmin for training and battery, or Pixel Watch 3 for Fitbit.

Best for best smartwatch to track fitness, notifications, and health

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Why we chose it: Covers the fitness, sleep, and notification features most iPhone owners use daily, with AppleCare+ bundled into this listing — the core Apple Watch experience without stepping up to the flagship Series. Read the full reasoning →

Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)

Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)

View Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years) on AmazonYou pay the same either way.
We synthesized thisHow we pickedUpdated Affiliate disclosureIndependent recommendations — never pay-to-play.

Buy this if

  • You prioritize phone ecosystem
  • You prioritize fitness tracking
  • You prioritize everyday software and notifications

Skip it if

  • Skip the Apple Watch SE 3 if you carry an Android phone — it needs an iPhone to work fully, so the Galaxy Watch 7, Garmin, or Pixel Watch 3 fit Android instead. And skip a full smartwatch entirely if all you want is many days of fitness tracking on one charge — a dedicated Garmin-style device does that with fewer nightly charges.

Our top pick

Top pick
Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)

Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)

  • CaseGPS, 40mm midnight aluminium
  • TrackingFitness, sleep, and heart-rate monitor
  • NotificationsNotification mirroring from your iPhone
  • CoverageThis listing includes AppleCare+ (2 years)
  • RequiresAn iPhone to set up and use fully

Pros

  • Covers the fitness, sleep, and notification mirroring that most iPhone owners actually use day to day
  • The core Apple Watch experience without stepping up to the flagship Series line
  • This listing bundles AppleCare+ coverage, so accident protection is built in

Cons

  • It requires an iPhone to set up and use fully, so it's not an option for Android owners
  • Like any full smartwatch, it needs recharging roughly daily — something to juggle against the overnight sleep tracking it offers

Alternatives

Best for Android phones

Samsung Galaxy Watch 7 40mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Green [US Version, 1Yr Manufacturer Warranty]

Samsung Galaxy Watch 7 40mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Green [US Version, 1Yr Manufacturer Warranty]

  • Case40mm, LTE
  • TrackingHeart-rate, sleep monitor, and fitness tracker
  • AI featureAI-driven energy score for daily readiness
  • EcosystemTight pairing with Samsung and Android phones

Pros

  • Pairs tightly with Samsung and Android phones, so notifications, health syncing, and unlock features just work
  • The AI energy score sums up your daily readiness in a single glanceable number
  • Tracks heart rate and sleep around the clock for a fuller health picture

Cons

  • iPhone users can't reach the full feature set — it is built to pair with an Android phone
  • Using the built-in LTE on its own needs a separate cellular plan

Best for training and battery life

Garmin vívoactive 5, Health & Fitness GPS Smartwatch, 42mm, Black

Garmin vívoactive 5, Health & Fitness GPS Smartwatch, 42mm, Black

  • CaseGPS, 42mm
  • FitnessBuilt-in sports apps, sleep coaching, and body battery monitoring
  • BatteryLasts many days between charges
  • SoftwareNotification features more basic than Apple or Samsung

Pros

  • Built-in sports apps, sleep coaching, and body battery monitoring suit people who train regularly
  • Battery life runs many days between charges, not overnight-only

Cons

  • The interface and phone notifications are more basic than Apple's or Samsung's software
  • The compact 42mm case leaves less screen for at-a-glance workout data than larger watches

Best for Fitbit fans on Android

Google Pixel Watch 3 (45mm) 2024 Model - Android Smartwatch, Heart Rate Tracking, Fitbit Advanced Running, Fitness Insights, 24-Hour Battery - Matte Hazel Aluminum Case - Hazel Band - Wi-Fi

Google Pixel Watch 3 (45mm) 2024 Model - Android Smartwatch, Heart Rate Tracking, Fitbit Advanced Running, Fitness Insights, 24-Hour Battery - Matte Hazel Aluminum Case - Hazel Band - Wi-Fi

  • Case45mm aluminium
  • FitnessBuilt-in Fitbit advanced running and fitness insights
  • EcosystemIntegrates cleanly with the Google and Android ecosystem
  • BatteryRoughly a day between charges

Pros

  • Fitbit's advanced running and fitness insights are built right in
  • Pairs cleanly with the Google and Android ecosystem for effortless setup

Cons

  • Battery is shorter than Garmin's dedicated fitness watches, needing a charge roughly once a day
  • Built for Android, it doesn't pair with an iPhone

How the picks compare

The picks compared for best smartwatch to track fitness, notifications, and health
Attribute
Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)Best for best smartwatch to track fitness, notifications, and health
Samsung Galaxy Watch 7 40mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Green [US Version, 1Yr Manufacturer Warranty]
Garmin vívoactive 5, Health & Fitness GPS Smartwatch, 42mm, Black
Google Pixel Watch 3 (45mm) 2024 Model - Android Smartwatch, Heart Rate Tracking, Fitbit Advanced Running, Fitness Insights, 24-Hour Battery - Matte Hazel Aluminum Case - Hazel Band - Wi-Fi
Phone ecosystemApple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)Requires an iPhoneSamsung Galaxy Watch 7 40mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Green [US Version, 1Yr Manufacturer Warranty]Best with Android and SamsungGarmin vívoactive 5, Health & Fitness GPS Smartwatch, 42mm, BlackFitness-first, not phone-lockedGoogle Pixel Watch 3 (45mm) 2024 Model - Android Smartwatch, Heart Rate Tracking, Fitbit Advanced Running, Fitness Insights, 24-Hour Battery - Matte Hazel Aluminum Case - Hazel Band - Wi-FiBest with Google and Android
Fitness trackingApple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)Fitness, sleep, and heart-rateSamsung Galaxy Watch 7 40mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Green [US Version, 1Yr Manufacturer Warranty]Heart-rate, sleep, and fitness plus an energy scoreGarmin vívoactive 5, Health & Fitness GPS Smartwatch, 42mm, BlackSports apps, sleep coaching, and body batteryGoogle Pixel Watch 3 (45mm) 2024 Model - Android Smartwatch, Heart Rate Tracking, Fitbit Advanced Running, Fitness Insights, 24-Hour Battery - Matte Hazel Aluminum Case - Hazel Band - Wi-FiBuilt-in Fitbit running and insights
Everyday software and notificationsApple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminium Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)Notification mirroring and watchOS appsSamsung Galaxy Watch 7 40mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Green [US Version, 1Yr Manufacturer Warranty]Notifications, health syncing, and unlockGarmin vívoactive 5, Health & Fitness GPS Smartwatch, 42mm, BlackMore basic than Apple or SamsungGoogle Pixel Watch 3 (45mm) 2024 Model - Android Smartwatch, Heart Rate Tracking, Fitbit Advanced Running, Fitness Insights, 24-Hour Battery - Matte Hazel Aluminum Case - Hazel Band - Wi-FiClean Google and Android integration

What to look for

Phone ecosystem

A smartwatch unlocks its full feature set only with the right phone, so the phone in your pocket decides your shortlist before anything else.

Fitness tracking

Depth of workout, sleep, and health tracking separates a real fitness tool from a wrist-worn notification screen.

Everyday software and notifications

How the watch handles notifications, apps, and phone integration shapes how it feels the other 23 hours of the day.

How we chose

We synthesized this

You already know which phone you carry — and that one fact narrows your smartwatch shortlist more than any spec on the box. Match the watch to your phone and it syncs cleanly, unlocks every feature, and gets out of your way; the wrong pairing fights you every day.

We weighed each watch against three things that decide daily use: which phone ecosystem it fits, how deep its fitness tracking goes, and how it handles everyday software and notifications. The Apple Watch SE 3 wins as the pick for iPhone owners because it covers the fitness, sleep, and notification features people actually use, with AppleCare+ bundled into this listing.

The alternatives follow the phone. Android and Samsung owners get the tightest integration from the Galaxy Watch 7 and its AI-driven energy score. Regular trainers who want many days between charges are better served by the Garmin. And Fitbit fans on Android will feel at home with the Pixel Watch 3.

Every assessment here is a synthesis of documented features and established use, not a timed lab test — you can read exactly what that means on our how-we-test page. Start with your phone, then pick the watch that tracks what you care about.

Frequently asked questions

Does the watch I pick depend on my phone?

Yes — more than any other factor. The Apple Watch SE 3 needs an iPhone, while the Galaxy Watch 7 and Pixel Watch 3 are built for Android. The Garmin is the most phone-agnostic, fitness-first choice, so it fits whatever you carry.

Which has the longest battery life?

Among these picks, the Garmin vívoactive 5 goes many days between charges, while the Pixel Watch 3 needs charging roughly once a day. How long any of them lasts depends heavily on the features you leave switched on.

Can I use a Galaxy Watch or Pixel Watch with an iPhone?

Not fully. The Galaxy Watch 7's complete feature set is built for Android, and an iPhone can't reach all of it — the same goes for the Pixel Watch 3. Match the watch to the phone you already carry.