Best for blood oxygen tracking
RingConn Gen 3
4.5 feature score
Highest scored product for this feature based on supporting review evidence.
Best Activity & Fitness Trackers for blood oxygen tracking
blood oxygen tracking Decision Dashboard
Safest pick
Fitbit Charge 6
4.5 feature score
Balances feature score, supporting reviews, and overall product strength.
Most evidence
RingConn Gen 2 Air
6 supporting reviews
Has the broadest review evidence for this feature.
Best overall product
Fitbit Inspire 3
3.9 overall score
Strongest overall product among items with scored evidence for this feature.
Blood oxygen tracking had limited but positive support from a reviewer who found the health sensors comparable to more expensive devices.
Pros: Strava compatibility, workout mode variety
Cons: elevation tracking, data syncing reliability
Blood oxygen tracking was valued most in sleep and apnea contexts, where reviewers found nighttime oxygenation trends informative and actionable.
Pros: pairing reliability, charging speed
Cons: alarm function, Strava compatibility
Blood oxygen tracking was generally viewed as useful for overnight vitals and abnormality flags, with several reviewers finding it close or informative.
Pros: pairing reliability, subscription value
Cons: smartphone notifications, workout mode variety
Blood oxygen tracking was mixed, with one reviewer finding it on point across key metrics and another saying SpO2 estimates were off during sleep apnea checks.
Pros: subscription value, weight
Cons: Strava compatibility, third-party app compatibility
Blood oxygen tracking added value to the health dashboard, but reviewers noted limitations such as weak on-device SpO2 functionality and no rich standalone experience.
Pros: fitness coaching, Strava compatibility
Cons: music controls, third-party app compatibility
Blood oxygen tracking has limited opinionated evidence, including one notable complaint about a missing SpO2 reading.
Pros: weight, step counting accuracy
Cons: cadence tracking, elevation tracking
Blood oxygen tracking was one of the weaker health metrics, with repeated reports of unreliable, wildly low, or consistently off SpO2 readings.
Pros: weight, charging convenience
Cons: sleep apnea monitoring, calorie tracking usefulness