Best for blood oxygen tracking
Fitbit Charge 6
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
RingConn Gen 2 Air
4.3 feature score
Balances feature score, supporting reviews, and overall product strength.
Most evidence
Fitbit Inspire 3
2 supporting reviews
Has the broadest review evidence for this feature.
Best overall product
Fitbit Air
3.3 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 generally treated as a useful overnight or vitals metric, with reviewers citing close alignment, consistent readings, or helpful overnight insight.
Pros: Bluetooth reliability, subscription value
Cons: smartphone notifications, automatic workout detection
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