Oura Ring 4 vs Samsung Galaxy Ring: Sub Fee or $50 More?

Both of these are screenless titanium smart rings that track your sleep, heart rate, and recovery from your finger instead of your wrist. They look similar and weigh almost the same — but they split hard on price, the phone you carry, and the dreaded subscription question.

Key Differences

• The Oura Ring 4 costs $349; the Galaxy Ring runs $399.99 — $50 more out the door.
• Oura charges a $5.99/month membership to unlock its scores and insights. The Galaxy Ring has no subscription at all.
• The Oura Ring 4 works with iPhone and Android. The Galaxy Ring needs an Android phone, and it only reaches full potential with a Samsung Galaxy device.
• Oura lasts up to 8 days per charge; the Galaxy Ring lasts up to 7 days.
• The Galaxy Ring is marginally lighter at 3.0g versus Oura’s 3.3g.

Deep Dive Comparison

Design & Comfort

Both rings are titanium and both disappear on your finger after a day. The Oura Ring 4 uses a titanium shell with recessed sensors, so the inside is a smooth, continuous surface with no bumps digging into your skin — it weighs 3.3g and measures 7.9mm across the band. The Galaxy Ring uses Titanium Grade 5 and shaves the weight to 3.0g with a concave outer profile that resists scratches. Neither one is a tap-and-go purchase: both ship with a sizing kit you wear for a day before you order the real ring. On water resistance, the Galaxy Ring’s 10 ATM + IP68 rating edges out Oura’s 100-meter rating on paper, but in practice both survive showers, pools, and dishwashing without a second thought.

Battery Life

Oura claims 192 hours, or 8 days, on a charge. The Galaxy Ring claims 168 hours, or 7 days. That one-day gap is real but small — you’re charging both about once a week, and each tops up in roughly 80–90 minutes in its case. Neither ring has GPS built in, so there’s no separate “GPS battery” number to worry about; both lean entirely on your phone for location during workouts.

Health & Fitness Features

This is where the rings are closer than the price suggests. The Oura Ring 4 packs red and infrared LEDs for blood oxygen (SpO2), green and infrared LEDs for heart rate and HRV, a digital temperature sensor, and an accelerometer. The Galaxy Ring covers heart rate, SpO2, skin temperature, and an accelerometer. So both track sleep stages, blood oxygen, skin temperature trends, and movement.

The practical edge goes to Oura: it explicitly tracks heart rate variability (HRV) and has years of refinement behind its Sleep and Readiness scores, which are the metrics most people buy a ring for. Just know that neither ring has GPS — if you run, both rely on a tethered phone to log distance and pace, so leave the phone at home and you’ll get heart rate but no map.

Smart Features

Don’t buy either of these expecting a tiny smartwatch. Neither ring has a display, neither does NFC contactless payments, and neither has a microphone or speaker. There are no on-ring notifications and no music control. Both are pure data-collection devices — every chart, score, and alert lives in the companion app on your phone. The difference is which app: Oura’s own app on either platform, versus Samsung Health, which only really sings if you already wear a Galaxy Watch or carry a Galaxy phone.

Price & Value

The sticker prices lie about the real cost. The Oura Ring 4 is $349 upfront, but the required membership is $5.99/month — about $72 a year. The Galaxy Ring is $399.99 upfront with nothing after that. Run the math: in year one, Oura lands around $421 while the Galaxy Ring stays at $399.99. By the end of year two, Oura is past $490 and climbing, while the Galaxy Ring hasn’t cost you another cent. If you keep a ring for two or more years, the “cheaper” ring is actually the Samsung.

Technical Specs

Spec	Oura Ring 4	Samsung Galaxy Ring
Weight	3.3g	3.0g
Case Material	Titanium	Titanium Grade 5
Water Rating	100 meters	10 ATM + IP68
Battery Life	192 hours (8 days)	168 hours (7 days)
Display	None	None
GPS	None (uses phone)	None (uses phone)
Sensors	SpO2, Heart Rate, HRV, Temperature, Accelerometer	Heart Rate, SpO2, Skin Temp, Accelerometer
Connectivity	Bluetooth Low Energy (BLE)	Bluetooth 5.4
NFC Payments	No	No
Subscription	$5.99/month required	None
Launch Price	$349	$399.99

The Verdict

The Oura Ring 4 is the better tracker and the better ring for most people. It has longer battery, works on any phone, costs $50 less upfront, and its sleep and readiness scoring is more refined than anything Samsung Health offers from a ring. The asterisk is the $5.99/month membership — it’s not optional, and over a couple of years it quietly becomes the more expensive ring.

Buy the Oura Ring 4 if you carry an iPhone, or you simply want the most polished sleep and recovery data and don’t mind renting it month to month.

Buy the Samsung Galaxy Ring if you own a Samsung Galaxy phone and you hate subscriptions. You’ll pay more on day one, but you never pay again — and it slots neatly into Samsung Health beside a Galaxy Watch, which is exactly the setup Samsung built it for.

Frequently Asked Questions

Which smart ring is better, the Oura Ring 4 or the Samsung Galaxy Ring?

For most people, the Oura Ring 4. It tracks more metrics including HRV, lasts a day longer per charge, works on both iPhone and Android, and costs $349 versus $399.99. The Galaxy Ring only pulls ahead if you own a Samsung phone and want to avoid Oura’s monthly fee.

Does the Oura Ring 4 require a subscription?

Yes. The Oura Ring 4 needs a $5.99/month membership to unlock its scores and detailed insights — without it, the ring is nearly useless. The Samsung Galaxy Ring has no subscription whatsoever, which is its single biggest advantage over time.

Does the Samsung Galaxy Ring work with an iPhone?

No. The Galaxy Ring only works with Android phones, and it’s built to shine with Samsung Galaxy devices and Samsung Health. If you use an iPhone, the Oura Ring 4 is your only real choice between these two.

Which ring has better battery life?

The Oura Ring 4 wins, with up to 192 hours (8 days) per charge versus the Galaxy Ring’s 168 hours (7 days). In daily use both mean charging roughly once a week, so the one-day gap won’t change your routine much.

Can either ring track my runs with GPS?

Neither ring has built-in GPS. Both rely on your phone to log distance and pace during a run, so if you leave the phone behind you’ll still get heart rate but no route or accurate mileage. If phone-free GPS matters, you want a watch, not a ring.