Wearable finder: four questions, matched against the spec sheet

What kind of device, how long between charges, which phone it has to talk to and what you want it to measure. Every result is reviewed on this site, and the review is one click away.

The finder searches every product reviewed on this site. It does not rank them by anything we were paid to prefer, and it does not hide one because its listing is incomplete — a listing that never states a figure still appears, labelled not stated, because an incomplete listing is not a worse product.

Your requirements

Clear all

What are you shopping for?

Battery life only means something within a type — a smart ring measured in days and a bright-screened smartwatch measured in days are doing very different work — so the class medians below are always computed inside one.

Smartwatches · 442 wearablesFitness trackers · 98 wearablesSmart rings · 77 wearablesKids' watches · 8 wearables

How long between charges?

The figure the maker publishes, which is measured with the screen dim, GPS off and notifications light. Real use is shorter, and always-on displays and workout tracking are what shorten it.

A day or twounder 3 days — charge it nightly · 100 statedAbout a week3–8 days · 195 statedA week or two8–15 days · 148 statedTwo weeks or more15 days and over · 63 stated

Which phone?

Most wearables pair with both, but the app and some features are usually better on one. A listing that names a single platform means it.

iPhoneAndroid

What should it measure?

The metrics the maker claims. Take a claimed measurement as a claim, not a clinical reading — none of these are medical devices unless the listing says the feature is cleared as one.

Heart rateSleepBlood oxygenSteps & activityBuilt-in GPSECG

Safe to swim in

Only listings that state a swim rating (5 ATM, 50 metres or equivalent) are shown when this is ticked. Splash and sweat resistance is not the same thing, and absence means the maker did not say.

Yesonly wearables that state it

629 wearables match

Sort results Best documented first Largest battery Smallest battery

Free Shark Smart Ring — Sleep & Health Tracker

iOS · AndroidSleep · SpO2 · Steps

Battery as stated

Up to 5 days per charge; 30+ days with charging case

Durability

not stated

Works with

iOS and Android via Free Shark app

Check price on AmazonRead the review

Battery

5days

Ring · 3–8 days · 48 wearables

Battery life is -17% against the class median of 6.

AMAZTIM M2 Rugged Smart Watch, 60-Day Extra Battery Review

not statedHeart rate · Sleep · SpO2 · StepsSwim-proof

Battery as stated

Up to 60 days in power-saving mode; roughly 2 weeks under typical use

Durability

Passed 12 military-standard tests (salt spray, rain, impact, crushing, drilling)

Works with

not stated

Check price on AmazonRead the review

Battery

60days

Smartwatch · 15 days and over · 47 wearables

Battery life is +150% against the class median of 24.

Kuizil T60 1.91-Inch Smartwatch for Men and Women Review

not statedHeart rate · Sleep · SpO2 · Steps

Battery as stated

Approximately 5-7 days of typical use; about 30 days standby

Durability

IP68 rated; not recommended for hot water or seawater

Works with

not stated

Check price on AmazonRead the review

Battery

7days

Tracker · 3–8 days · 46 wearables

Battery life is 0% against the class median of 7.

BIGGERFIVE BW02 1.8-Inch Kids Fitness Tracker Watch Review

iOS · AndroidHeart rate · Sleep · Steps

Battery as stated

not stated

Durability

IP68, ~1 meter

Works with

Android 6.0+, iOS 9.0+

Check price on AmazonRead the review

Battery

Not stated

This listing does not publish a figure, so it cannot be placed against the baseline.

BIGGERFIVE BW02 Smart Watch for Kids No App Needed Review

not statedHeart rate · Steps

Battery as stated

not stated

Durability

IP68 rated, 1-meter water resistance depth

Works with

not stated

Check price on AmazonRead the review

Battery

Not stated

This listing does not publish a figure, so it cannot be placed against the baseline.

RingConn Gen 2 Air Size 10 Dune Gold AI Smart Ring Review

iOS · AndroidHeart rate · SpO2

Battery as stated

Up to 10 days per full charge

Durability

IP68 rating, tested to depths of 100 meters (328 feet)

Works with

iOS and Android smartphones

Check price on AmazonRead the review

Battery

10days

Tracker · 8–15 days · 28 wearables

Battery life is 0% against the class median of 10.

AMOLED Rugged Smartwatch for Calls and Fitness Tracking Plus

iOS · AndroidHeart rate · Sleep · SpO2 · Steps

Battery as stated

not stated

Durability

IP68 water/dust rating; manufacturer cites multiple military-style certifications (shock, temperature)

Works with

Described as Wear OS and compatible with iOS and Android via app

Check price on AmazonRead the review

Battery

10days

Smartwatch · 8–15 days · 103 wearables

Battery life is -29% against the class median of 14.

Garmin vívofit jr. 3 Review: Best Fitness Tracker for Kids

iOS · AndroidSwim-proof

Battery as stated

Up to 1 year

Durability

Swim-friendly

Works with

iOS 12.0 or later, Android 5.0 or later

Check price on AmazonRead the review

Battery

Not stated

This listing does not publish a figure, so it cannot be placed against the baseline.

AR Glasses Review: FANGOR FGAR10 Smart Glasses for 2026

not stated

Battery as stated

not stated

Durability

Not explicitly stated in specifications

Works with

not stated

Check price on AmazonRead the review

Battery

Not stated

This listing does not publish a figure, so it cannot be placed against the baseline.

Health Fitness Tracker Smart Watch Review: 24/7 Heart Rate, Sleep, and Activity Monitoring

iOS · AndroidHeart rate · Sleep · SpO2 · Steps

Battery as stated

10-15 days (typical), 30 days (standby)

Durability

3ATM water resistance, scratch-resistant screen

Works with

iOS, Android

Check price on AmazonRead the review

Battery

15days

Too few wearables in this class to publish a baseline.

Amazfit GTR 3 Pro Smart Watch Review: 1.45" AMOLED Fitness Tracker with 150 Sports Modes

iOS · AndroidHeart rate · SpO2Swim-proof

Battery as stated

Up to 12 days with typical usage

Durability

5 ATM (50 meters)

Works with

Android 7.0+, iOS 12.0+

Check price on AmazonRead the review

Battery

12days

Tracker · 8–15 days · 28 wearables

Battery life is +20% against the class median of 10.

Amazfit Bip 5 Core Review: Tracking, Battery, Fit, Sync

iOS · AndroidHeart rate · Sleep · SpO2 · Steps

Battery as stated

not stated

Durability

Water resistant (manufacturer-stated); stainless steel frame; touchscreen input

Works with

Bluetooth connection to Android and iPhone via Zepp app; data sync to Strava, Apple Health, Google Fit, Adidas Running

Check price on AmazonRead the review

Battery

11days

Smartwatch · 8–15 days · 103 wearables

Battery life is -21% against the class median of 14.

Show more (617 remaining)

How to read the results

The figure on the right of each result is its battery life in days, and beneath it how far that sits from the median for its own type and battery class. Treat the published figure as a ceiling: it is measured with the screen dim, GPS off and notifications light, and an always-on display or a tracked workout will cut it hard. The bar shows where the device sits across its class, with the median marked.

Where a class holds fewer than eight products, no comparison is shown. That is a deliberate limit, not a missing feature. Read the review under each result opens this site’s review of that product; Check price on Amazon opens the listing.

Why incomplete listings still appear

Every figure here is the manufacturer’s, as quoted in the review. A filter that dropped everything it could not confirm would discard much of the catalogue the moment you answered, and what it discarded would not be worse products, only less completely described ones. So a filter excludes a product only when its listing positively contradicts what you asked for.

The catalogue is 629 wearables at the time of writing, and coverage of the questions varies: battery by 80%, platform by 83%, metrics by 78%, Safe to swim in by 18%. Those are the manufacturers’ own publishing habits, not gaps we chose to leave.

What the finder cannot tell you

It cannot tell you whether a heart rate reading is accurate, because that needs testing against a chest strap and this site does not test. It cannot treat any of these as medical devices, and neither should you unless the listing names a specific clearance. And it cannot tell you how long the maker will keep updating the software, which is what decides how long a smartwatch stays useful.

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