Samsung Galaxy Ring: price, sizes, battery, features and which phones work

The Samsung Galaxy Ring on sale today is the same ring Samsung launched on July 10, 2024. It cost $399.99 then, according to Android Authority, and Samsung's US store now lists it from $299.99 before trade-in. Samsung hasn't announced a successor: its newsroom's Galaxy Ring page shows no new ring since the size expansion of January 2025.

The ring tracks sleep, heart rate, skin temperature and activity, and it charges no subscription. It works only with Android phones, though, and several features need a Samsung Galaxy phone.

This guide is based on Samsung's product pages, specifications and press releases. We haven't tested the ring.

Galaxy Ring at a glance

Price and availability

Samsung's US store lists the Galaxy Ring from $299.99 before trade-in, $100 less than its launch price, and offers trade-in credit toward it. Samsung said in January 2025 that the full range of sizes was reaching 53 markets, and it also sells the ring to companies as Galaxy Ring for business.

The ring is more than two years old, and its hardware hasn't changed since launch. Samsung has added software through the Samsung Health app since then, including the sleep features described below.

Sizes and the sizing kit

The Galaxy Ring comes in 11 sizes, 5 to 15. Samsung added sizes 14 and 15 in January 2025. Unlike Oura and Ultrahuman, which use their own sizing, Samsung says the Galaxy Ring follows US standard sizes, but it still recommends its sizing kit.

The kit is free with an order. Choose "I don't know my size" at checkout, and Samsung ships the kit first. Wear a sample ring on the finger you plan to use for at least 24 hours, then enter your size on the My Order page within 14 days of receiving the kit, or the order is canceled. You don't need to return the kit, and Samsung gives only one per order. Our smart ring sizing guide compares the process across brands.

Battery life and the charging case

Samsung rates the Galaxy Ring at up to seven days per charge for sizes 12 and 13 and up to six days for smaller sizes. The ring charges in a clamshell case with a clear lid, LED lights that show charging progress, and its own 361 mAh battery. Samsung says a fully charged case lets you go up to 14 days without plugging into an outlet, and that 30 minutes in the case takes the ring to 40%.

Samsung's US FAQ notes that the ring's components can't be replaced, so a repair means replacing the whole ring. If you won't wear it for a while, Samsung says to store it in the charging case and charge it before you start again, because the battery can run down when the ring sits unused.

What the Galaxy Ring tracks

Inside are an accelerometer, an optical heart rate sensor and a skin temperature sensor. Everything shows up in the Samsung Health app:

• Sleep: a Sleep Score, sleep latency, movement during sleep, heart and respiratory rate overnight, and snoring analysis, which needs your phone within 2 feet. Samsung Health added a sleep environment report (with compatible SmartThings devices), bedtime guidance and a mindfulness tracker in January 2025.
• Energy Score, a daily readiness number based on sleep, activity, and heart rate and heart rate variability during sleep, plus personalized Wellness Tips. Samsung says both require a compatible Galaxy AI phone.
• Heart Rate Alerts for unusually high or low readings, and live heart rate checks.
• Cycle Tracking, which uses overnight skin temperature to follow your menstrual cycle. Samsung says it is not intended for contraception.
• Auto Workout Detection for walking and running, and inactivity reminders.
• Gestures: a double pinch takes a photo or dismisses an alarm on a Galaxy phone.
• Find My Ring, which shows the ring's last location on a map through Samsung Find.

Samsung says the heart rate features aren't intended to diagnose disease. Your health data is stored in Samsung Cloud under your Samsung account.

Which phones work with the Galaxy Ring

Samsung's launch specifications list Android 11 or later with more than 1.5GB of memory, plus the Galaxy Wearable app, the Samsung Health app and a Samsung account. Its US store FAQ goes further and describes the ring as supported on Samsung Galaxy phones running Android 11 or later, and the product page says you register a Samsung account on your Galaxy phone to start.

In practice:

• On a Samsung Galaxy phone, you get every feature.
• On another Android phone, Samsung's own descriptions put gestures, Find My Ring through Samsung Find, and Energy Score and Wellness Tips out of reach, since each requires a Galaxy phone. Check Samsung's current requirements before buying.
• On an iPhone, the Galaxy Ring isn't an option. Samsung's requirements don't include iOS.

Setup and everyday tips

To pair the ring, put it in the charging case, close the lid and open it again, and a pop-up should appear on your Galaxy phone. If it doesn't, hold the case's multipurpose button for at least three seconds with the ring inside, or set it up from the Galaxy Wearable app. Samsung notes that the pop-up may not appear if the case or the ring is low on charge.

Samsung also warns that a tattoo or mole under the sensor can stop the ring from recognizing that it's being worn, and suggests moving it to another finger if that happens. If you misplace the ring, open Find My Ring in the Galaxy Wearable app or use Samsung Find: a nearby search makes the ring's LEDs blink red and green.

No subscription

Samsung said at launch that the ring's data and insights live in Samsung Health "without a subscription," and its US store lists none today. That's the main difference from Oura, which charges $5.99 a month or $69.99 a year in the US for most features. Our Oura membership explainer covers what that fee buys.

Durability and water resistance

The frame is grade 5 titanium, with a concave outer surface that Samsung says reduces scratches. The ring is rated 10ATM and IP68. Samsung tested water resistance to 100 meters under the ISO 22810 standard, in salt water and chlorinated water, and says the ring suits pool and ocean swimming but not diving or high-pressure water activities. It recommends rinsing the ring in fresh water after the sea and notes that water resistance can diminish over time.

Galaxy Ring vs Oura Ring 5 and Ultrahuman Ring Pro

The Galaxy Ring is the cheapest of the three and the only one without iPhone support. It is also the oldest design. Oura's newer ring is thinner, lighter and rated for more days per charge, but it costs more and carries a fee, and Ultrahuman's is rated to last more than twice as long between charges. Our full Oura vs Galaxy Ring vs Ultrahuman comparison has the specs and two-year costs.

Who the Galaxy Ring is for

It fits best if you already use a Samsung Galaxy phone, want a ring without a monthly fee, and are fine with a design from 2024. Samsung also pitches it alongside the Galaxy Watch, saying that together they "deliver detailed data and holistic insights." If you use an iPhone, or want the newest hardware, look at the rings in our best smart rings guide.