Ultrahuman Ring Air

Launched Sep 2023 · Fitness band

59
OkayGifng score
Good for sleepGood for healthGood for value

Usual price₹19,999

Where to buy

Usual price ₹19,999 · launch price ₹28,999

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Score breakdown

Health tracking
78

Night HR/HRV close to Garmin; HRV and SpO2 read high

Smart features
12

Screenless ring; app only, no notifications

Battery
64

About 3-5 days per charge

Fitness & GPS
32

Workout HR badly wrong, no GPS

Build & comfort
82

2.4 g titanium, 10 ATM; finish scratches

Each part is rated on one scale for every smartwatch and band, from reviewers' accuracy tests and measured battery life where they exist, what reviewers found, specs and owner reports. It rates the product itself, not how good it is for the price.

Pros

  • So light you forget it, fine for side sleepers
  • No subscription
  • Useful sleep trends
  • Overnight resting HR and HRV close to a Garmin
  • About 5 days per charge
  • No subscription, trade-in deals
  • Full set of sensors and metrics

Cons

  • Workout heart rate badly wrong
  • Steps inflated by desk movement
  • Cluttered app and nagging alerts
  • SpO2 readings look too high
  • Expensive up front
  • App busy and inconsistent
  • Heart rate wrong in hard exercise
  • Android CentralMar 2024

    Excellent at its core job of sleep and heart-health tracking - overnight resting heart rate and HRV were close to a Garmin watch - but exercise heart rate was far off (mid-180s vs 140 on one run), steps and VO2 max disagreed with Garmin, and SpO2 looked too high.

  • the5krunnerJun 2024

    Best-value smart ring because there's no subscription, though Oura is slightly better overall; worn next to Oura and an Eight Sleep, sleep stages looked similar night to night but deep sleep could differ by an hour, HRV ran consistently higher than every other device, and sport heart rate was unreliable.

  • Croma Unboxed2024

    A comfortable, wedding-band-like sleep tracker that caught night wake-ups well and lasted 5-6 days, but its beta workout mode missed weight sessions and it can't replace a smartwatch; sleep judged by feel, not a reference device.

Full specs

Basics
Works withAndroid, iPhone
Display
Always-on displayNo
Battery
Maker's figure6 days
Measured in a test5 days (about 5 days, less with workout mode; the5krunner usually 3-4 days, rarely over 4; Croma 5-6 days)
Chargingcharging dock, about 2-3 h to full; 24 mAh
Health & fitness
Heart rateYes
Blood oxygen (SpO2)Yes
ECGNo
Skin temperatureYes
Blood pressureNo
GPSNone
Barometer / compassNo
Health featuressleep stages and sleep score, resting heart rate and HRV, skin temperature, recovery / readiness score, movement index, caffeine window, nap detection, SpO2
Smart features
CallingNo
AppsNo apps
MapsNo
Reply to messagesNo
Music on the watchNo
Build
Casetitanium with tungsten carbide, carbon coating; epoxy inner
Weight2.4 g
Water resistance10 ATM
Other
Warranty1 year
ColoursAster Black, Space Silver

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