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Oura Ring 4 vs Ultrahuman Ring Pro

The Oura Ring 4 is the better buy for most people. It costs far less: $188.97 at eBay as of November 5, 2026, versus $479.00 at Walmart for the Ultrahuman Ring Pro. Pick the Ultrahuman only if you need its much longer battery life, on-ring data storage, or 100m water resistance.

Today the Oura Ring 4 costs $290.03 less at its best price.

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Oura
Oura Ring 4

Oura Ring 4

4.5· 5,000 ratings
$188.97at eBayObserved at 10:07 AM
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Choose the Oura Ring 4 if you want strong sleep and everyday health tracking at less than half the price.

Pros
  • Less than half the price of the Ultrahuman Ring Pro.
  • Well-reviewed sleep and recovery data, with a Wellness Balance feature.
  • Light titanium build in Silver and Rose Gold.
  • No subscription needed for core scores.
Cons
  • Shorter battery life, roughly a week.
  • Reviewers note no readiness score.
  • Limited sharing with third-party apps beyond Apple Health.
Ultrahuman
Ultrahuman Ring Pro

Ultrahuman Ring Pro

$479.00at Best BuyObserved at 10:07 AM
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Choose the Ultrahuman Ring Pro if you want up to 15 days of battery, 250 days of on-ring storage, and 100m water resistance.

Pros
  • Up to 15 days of battery life.
  • Stores up to 250 days of data on the ring itself.
  • 100m water resistance for swimming and diving.
  • Slimmer and lighter than the Oura Ring 4.
Cons
  • Costs $479.00, more than twice the Oura Ring 4.
  • Fewer independent reviews to judge long-term reliability.
  • Charging uses magnetic pins rather than a sealed dock.

What separates them

Oura Ring 4Ultrahuman Ring Pro
Price$188.97 at eBay as of November 5, 2026$479.00 at Walmart as of November 5, 2026
Battery lifeAbout 4 to 7 days per chargeUp to 15 days
On-ring data storageLimited; data syncs to the appUp to 250 days on the ring
Water resistanceWater resistant for swimming and showers100m / 328 ft
Weight3.3 to 5.2 g3.3 to 4.8 g
ThicknessAbout 2.9 mm2.65 mm
Sizes and colorsSizes 6 to 15; Silver and Rose Gold titaniumSizes 5 to 14; four finishes including Raw Titanium
SubscriptionNo monthly fee for core scoresNo subscription required

Price history

$479.00$168.99
Nov 4Nov 5
  • Oura Ring 4: lowest $168.99 on Nov 4 at eBay; $188.97 on Nov 5.
  • Ultrahuman Ring Pro: lowest $479.00 on Nov 5 at Best Buy.

Prices at every store

Oura Ring 4

  • eBayNew

    In stock

    $188.97Free shippingObserved at 10:07 AM
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  • Best BuyNew

    In stock

    $249.00Free shippingObserved at 10:07 AM
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  • TargetNew

    In stock

    $249.00Free shippingObserved at 10:07 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $279.00Free shippingObserved at 10:07 AM
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Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart
  • Newegg.comCheck price at Newegg.com
All 4 stores and price history →

Ultrahuman Ring Pro

  • Best BuyNew

    In stock

    $479.00Free shippingObserved at 10:07 AM
    Visit store
  • WalmartNew

    In stock

    $479.00Free shippingObserved at 10:07 AM
    Visit store
  • TargetNew

    In stock

    $479.99Free shippingObserved at 10:07 AM
    Visit store
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $479.00Free shippingObserved at 10:07 AM
    Visit store

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart
All 5 stores and price history →

Specs compared

SpecOura Ring 4Ultrahuman Ring Pro
Weight3.3 to 5.2 g3.3–4.8 g
MaterialTitanium—
Metal TypeTitanium—
Metal ColorRose Gold, Silver—
Jewelry TypeRing—
StyleModern—
CertificationFCC-certified—
OccasionEveryday wear, Night out, Workout—
ThemeHealth—
EmbellishmentDiscreet sensors on the interior—
Country Of OriginFinland—
ShapeRing—
Show all 34 specsShow fewer specs
SpecOura Ring 4Ultrahuman Ring Pro
Target AudienceUnisex Adults—
Circumference~59.6 mm (Size 9)—
Diameter18.71 mm (Inner Ring)—
Length2.88 inches—
Width7.90 mm—
Height0.8 inches—
Durability ResistanceWater resistant—
Durability StrengthDurable—
Care InstructionsMinor scratches from regular wear are normal—
Collection Name

What reviewers say

Oura Ring 4

Owners rate the Ring 4 around 4.5 out of 5 across about 5,000 ratings. Most praise the comfort, sleep insights and improved fit over earlier models. Complaints center on the subscription and the need to get sizing right.

Pros
  • Comfortable enough to sleep in
  • Useful sleep and readiness scores
  • Better fit and sensor accuracy than the Ring 3
  • Low-profile design
Cons
  • Membership fee on top of the ring price
  • Sizing mistakes are costly
  • Finish shows scratches
  • App data can feel overwhelming

Ultrahuman Ring Pro

Owners of Ultrahuman rings generally praise the comfort, the no-subscription model and the sleep and recovery scores. Common complaints center on sizing, app quirks and occasional gaps in heart-rate data during intense exercise.

Pros
  • Comfortable enough to sleep in
  • No recurring fee for the main features
  • Useful sleep and recovery scores
  • Long battery life
Cons
  • Fit and sizing take trial and error
  • App can feel cluttered and buggy
  • Heart-rate tracking can drop out in hard workouts
Reviews
  • The best smart rings of 2026: Expert tested - ZDNET - Skip to content
  • The best fitness rings of 2026: Expert tested and reviewed - ZDNET
  • The best smart rings of 2026: Expert tested - ZDNET

Questions and answers

Which is better for sleep tracking?
Both track sleep well. The Oura Ring 4 has a longer track record and strong reviewer praise for its sleep and recovery data. The Ultrahuman Ring Pro matches it on sensors but has less independent testing.
Is the Ultrahuman Ring Pro worth the extra money?
Only if battery life and water resistance matter most to you. At $479.00 versus $188.97, you pay about $290 more for up to 15 days of battery and 100m water resistance.
Which lasts longer between charges?
The Ultrahuman Ring Pro, at up to 15 days. The Oura Ring 4 typically needs a charge about once a week.
Can I swim with either ring?
Yes. The Ultrahuman Ring Pro is rated to 100m. The Oura Ring 4 is water resistant and fine for swimming and showers, but it is not rated for depth.
Do either require a subscription?
No. Both give core scores without a monthly fee, though Oura's advanced features have historically sat behind its membership.
Which is slimmer?
The Ultrahuman Ring Pro, at 2.65 mm thick and 3.3 to 4.8 g. The Oura Ring 4 is about 2.9 mm and 3.3 to 5.2 g.

More comparisons

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  • Ultrahuman Ring Pro vs RingConn Gen 2

Buying guides that pick them

  • Best smart rings for fitness and sleep tracking
  • Best affordable smart rings
Ceramic Collection
—
Material SourceUnited States—
Battery life—up to 15 days
On-ring data storage—up to 250 days
Charger battery life—up to 45 days
Charger data storage—up to one year
Materials—titanium unibody architecture
Available sizes—5–14
Colors—Bionic Gold, Space Silver, Aster Black, and Raw…
Connectivity—BLE 5.3
Thickness—2.65 mm (varies by size)
Water resistance—100m / 328 ft
Charging—DC magnetic charging pins