Best smartwatches in 2026

Best smartwatches for iPhone and Android

Matching the watch to the phone matters more than most spec sheets suggest. Apple's Series 12, Ultra 4 and SE 3 all need iOS 27 on hardware no older than an iPhone 11, so anyone on an earlier handset should look elsewhere. For iPhone owners the Series 12 is the natural pick, with a 42mm or 46mm case, an Always-On Retina panel at 2,000 nits and a Readiness score that shows which inputs moved the number. The Ultra 4 adds a 49mm titanium body, 100m water resistance and a heart sensor that samples every five seconds. On the Android side, the Pixel Watch 5 needs Android 12 or newer, though its Gemini run coaching and AI Coach sit behind a Google Health Premium subscription. The OnePlus Watch 3 skips iOS entirely and some functions demand a recent OnePlus phone.

Battery expectations split the two camps. Amazfit's Balance 2 carries a 658 mAh cell rated for 21 days of typical use, or 33 hours with accuracy GPS mode active, and the budget Bip 6 runs about 14 days, or 26 in power saver mode. Apple's figures are shorter: 24 hours for the Series 12, stretching to 38 in Low Power Mode, and 50 hours for the Ultra 4, or 84 in the same mode. Check GPS hardware too, since Apple fits Precision L1 to the Series 12 but dual-frequency Precision GPS to the Ultra 4. Cellular Apple models also add a monthly carrier charge, so a GPS-only version saves money if your phone is usually nearby.

Can you use an Apple Watch with Android?

No. Apple's current lineup, covering the Series 12, Ultra 4 and SE 3, pairs only with an iPhone 11 or newer that has iOS 27 installed. An older iPhone will not work either, so the phone itself may need replacing before the watch does. If you are committed to Android, the Pixel Watch 5 is the direct alternative, requiring Android 12 or later but not the Go edition, and the OnePlus Watch 3 is another option provided you own a OnePlus handset on OxygenOS 15 or ColorOS 15 or newer. Budget for a Google Health Premium subscription if you want the Pixel's Gemini run coaching and AI Coach.

Which smartwatches work with both iPhone and Android?

The Amazfit models in this guide are the cross-platform choices. The Balance 2 pairs with either phone system and backs it with a 1.5 inch AMOLED screen at 2,000 nits, a 47.4mm aluminum alloy case and a 10 ATM rating that covers 45m freediving and recreational scuba. The Bip 6 does the same job for less, with a 1.97 inch AMOLED panel, built-in GPS across five satellite systems and BioTracker sensors for heart rate, sleep, blood oxygen, stress and breathing rate. Samsung's Galaxy Watch9 is the exception: ECG, blood pressure and sleep apnea monitoring need a Samsung phone plus the Samsung Health Monitor app, so it is not a true either-phone pick.

Best fitness and running watches

For runners and gym users, the Garmin Forerunner 970 is our pick for the best running watch. Its 47mm AMOLED touchscreen is protected by a sapphire lens and titanium bezel, and the body is lighter and thinner than the Fenix 8 according to testers. Reviewers rated its GPS accuracy excellent and described the optical heart rate sensor as dependable. Built-in full-color maps and 32GB of storage handle routes and music. Expect four to five days between charges when the always-on display stays on and you run daily, well below the quoted 15-day smartwatch figure. Two metrics, running economy and step speed loss, require Garmin's HRM 600 chest strap, which costs extra.

If you want the best fitness smartwatch with broad phone compatibility, check the platform first. Apple's Series 12, Ultra 4 and SE 3 need an iPhone 11 or newer on iOS 27 or later, so an older handset rules them out. The Pixel Watch 5 runs on Android 12 or newer, excluding Android Go, and its Gemini run coaching sits behind a Google Health Premium subscription. The OnePlus Watch 3 skips iOS and Android Go, and parts of its feature set need a recent OnePlus phone. GPS hardware also varies by model: Apple fits Precision L1 to the Series 12, plain GPS to the SE 3 and dual-frequency Precision GPS to the Ultra 4.

How accurate is wrist-based GPS?

Accuracy depends on the GPS hardware inside each watch, so compare the specification before buying. Apple equips the Series 12 with Precision L1 GPS, gives the SE 3 standard GPS and fits the Ultra 4 with Precision dual-frequency GPS, a difference that matters in dense cities or under tree cover. Garmin publishes separate battery estimates for each GPS mode, and its multi-band figures run shorter than GPS-only ones, which shows the extra accuracy carries a power cost. Reviewers rated the Forerunner 970's GPS accuracy excellent, making it a strong choice for runners who want dependable tracking.

Do you need a subscription for fitness features?

It varies by brand. Google's Gemini run coaching and AI Coach on the Pixel Watch 5 require a Google Health Premium subscription, so those tools stop without one. Garmin keeps core training tools on the watch, but downloading music from Spotify, Deezer or Amazon Music needs a paid plan with that service, and metrics such as running economy call for the HRM 600 chest strap, which is sold on its own. Apple's cellular models also add a monthly carrier charge, so a GPS-only version avoids that cost if you run with your phone.

Best smartwatches for battery life and outdoors

Hikers and travellers who measure a watch in days rather than hours should start with the Amazfit Balance 2, our pick for the best smartwatch battery life. Amazfit rates its 658 mAh cell at as much as 21 days of typical use, and the watch manages 33 hours once accuracy GPS mode is running. The 1.5 inch AMOLED panel hits 2,000 nits behind sapphire glass, and the 10 ATM rating extends to 45m freediving and recreational scuba. For the best outdoor watch, the Garmin Instinct 3 AMOLED brings a metal-reinforced bezel, a fiber-reinforced polymer case and MIL-STD 810 thermal and shock resistance, with multi-band GPS and SatIQ. Garmin's 50mm figure is 24 days using wrist gesture, or 9 days if you keep the screen lit.

If you want running tools alongside long runtime, the Garmin Forerunner 970 pairs a sapphire lens and titanium bezel with full-colour maps and 32GB of storage, though testers running daily with the always-on display charged every four or five days. The Amazfit Bip 6 covers the budget end at roughly 14 days of regular use, or 26 in power saver mode. Check how each maker quotes endurance: Garmin publishes smartwatch and GPS figures separately, and multi-band GPS numbers run shorter than GPS-only ones. The Instinct 3 AMOLED 50mm shows the gap clearly, since switching on the always-on screen brings its smartwatch estimate down to 9 days from the 24-day wrist gesture claim.

How long does a smartwatch battery really last?

Published figures vary widely because makers quote different modes. Amazfit lists about 14 days of regular use for the Bip 6, stretching to 26 days in power saver, while the Balance 2 is rated at up to 21 days typical and 33 hours with accuracy GPS active. Garmin separates smartwatch mode from each GPS mode, so the Forerunner 970's 15-day claim becomes 26 hours in GPS Only and 21 hours in All plus Multi-Band. Real-world use can fall shorter still: reviewers of the Forerunner 970 charged every four or five days with daily runs and the display always on, and one Instinct 3 AMOLED tester reached 22 days against Garmin's 24-day estimate.

Best cheap and budget smartwatches

Shoppers hunting for the best cheap smartwatch usually want the essentials done well: a readable screen, dependable GPS and health tracking that lasts through the week. The Amazfit Bip 6 fits that brief and takes our Best budget label. Its 1.97-inch AMOLED panel is rated at 2,000 nits, which should stay legible in direct sun, and the watch draws location data from five satellite systems through built-in GPS. Amazfit quotes roughly two weeks of normal use per charge, or as many as 26 days with power saver switched on. A full top-up from empty takes 1.5 to 2.5 hours, slower than many shoppers anticipate. An aluminum alloy case and 5 ATM water resistance round out the package.

The best budget smartwatch still makes compromises, and it pays to know where they land. If you own a Galaxy Watch9, for instance, the ECG, blood pressure and sleep apnea features only work when paired with a Samsung handset and the Samsung Health Monitor app, so a non-Samsung phone loses those tools. Apple's watches are stricter still: Series 12, Ultra 4 and SE 3 need an iPhone 11 or newer on iOS 27 or later. Budget buyers should also check GPS hardware, because Apple fits plain GPS to the SE 3 while the Series 12 gets Precision L1 and the Ultra 4 gets dual-frequency positioning.

What do budget smartwatches leave out?

Expect fewer sensors, simpler positioning hardware and tighter phone requirements. The Apple Watch SE 3 carries plain GPS, whereas the Series 12 uses Precision L1 and the Ultra 4 adds dual-frequency GPS, a difference that matters for runners in dense cities or tree cover. Some health tools are tied to a specific phone brand: on the Galaxy Watch9, ECG readings, blood pressure and sleep apnea detection demand a Samsung phone plus the Samsung Health Monitor app. Cellular versions of Apple watches also bring a monthly carrier charge, which a GPS-only model avoids if you keep your phone nearby.

Are health sensors on smartwatches accurate?

Treat wrist-based readings as estimates rather than clinical measurements. The Amazfit Bip 6 uses its BioTracker setup to log heart rate, sleep stages, blood oxygen, stress and breathing rate, which is useful for spotting trends over time. Accuracy shifts with fit, movement and skin contact, and features such as ECG or blood pressure on the Galaxy Watch9 depend on the Samsung Health Monitor app and a Samsung phone, so results vary by setup. For anything medical, compare against a dedicated device and speak to a clinician rather than relying on watch data alone.

How we chose

Every pick in this guide was on sale when we wrote it. Specifications come from the manufacturers' own product pages, and our findings draw on the published reviews listed under Sources. RoxMag does not hands-on test products, so we describe what the specs and those reviews show rather than claiming first-hand measurements. No brand pays for placement. We leave prices out because they change daily. In this category, phone compatibility comes first: Apple's watches need an iPhone 11 or later on iOS 27, the Pixel Watch 5 needs Android 12 or newer, and some Galaxy Watch9 health features require a Samsung phone. GPS hardware varies even inside one brand, and Garmin quotes battery life separately for smartwatch and each GPS mode, so check those figures against how you plan to use the watch.

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Sources

Specifications come from the manufacturers' own pages. Review findings come from the published reviews below. Products and specifications change, so check the manufacturer page before you buy.

• Apple: Watch compare
• Apple: Apple Watch Series 12 tech specs
• Apple: Apple Watch Ultra 4 tech specs
• Apple: Apple Watch SE 3 tech specs
• iPhone in Canada: Apple Watch Series 12 review
• Expert Reviews: Apple Watch Series 12 review
• MacDailyNews: Apple Watch Ultra 4 review roundup
• iDevice: Apple Watch Ultra 4 review (Gizmodo summary)
• Cult of Mac: Apple Watch SE 3 review
• Samsung: Galaxy Watch9
• Android Authority: Samsung Galaxy Watch 9 review
• Notebookcheck: Samsung Galaxy Watch 9 review
• The 5K Runner: Google Pixel Watch 5 specs
• Android Headlines: Google Pixel Watch 5 review
• Engadget: Pixel Watch 5 hands-on
• Garmin: Forerunner 970 owner's manual, battery life
• Garmin: Forerunner 970 owner's manual, specifications
• Garmin newsroom: Forerunner 570 and 970
• The Run Testers: Garmin Forerunner 970 review
• Garmin newsroom: Forerunner 70 and 170
• Garmin: Forerunner 170 owner's manual, battery
• Garmin: Forerunner 170 owner's manual, specifications
• The 5K Runner: Garmin Forerunner 170 review
• Garmin newsroom: Instinct 3 series
• Garmin: Instinct 3 AMOLED owner's manual, battery life
• Garmin: Instinct 3 AMOLED owner's manual, specifications
• GearJunkie: Garmin Instinct 3 AMOLED review
• DC Rainmaker: Garmin Instinct 3 in-depth review
• Amazfit: Balance 2
• Amazfit: Bip 6
• OnePlus: OnePlus Watch 3
• apple.com
• garmin.com
• garmin.com
• store.google.com