Best 2025 Smartwatches for blood oxygen tracking

#1

Blood oxygen readings were limited in coverage but strongly positive where tested against reference readings.

#2

Blood oxygen readings were viewed positively where tested, with one reviewer reporting very small deviations and another calling results accurate enough.

#3

Blood oxygen tracking received limited but positive evidence, with one reviewer saying it matched a comparison watch’s 96 percent reading impressively.

#4

Blood oxygen evidence was limited but positive, tied to a redesigned sensor that improved stability during demanding outdoor use.

#5

Blood oxygen tracking is treated as a welcome restored capability that makes the watch feel more complete as a health device.

#6

Blood oxygen readings were limited in the review evidence but positive where compared directly, with one user finding pulse-ox results very close to a finger oximeter.

#7

Blood oxygen tracking drew limited but mostly positive evidence, with one reviewer matching an oximeter while another found it weaker during sleep.

#8

Blood oxygen tracking received limited but positive evidence as part of the BioTracker suite, which one reviewer said handled health vitals admirably.

#9

Blood oxygen readings received limited direct evaluation, but TechAdvisor found the data aligned well with other devices.

#10

PulseOx-related evidence centered on improved practicality, with one reviewer finding breathing-variation tracking no longer caused a notable overnight battery penalty.

#11

Blood oxygen tracking appears as part of the watch's broader accurate health-monitoring package, but reviewers did not deeply test it as a standalone feature.

#12

Blood oxygen tracking was treated as part of a basic health suite that appeared to work well in daily use.

#13

Blood oxygen tracking was mentioned as an advanced capability, but reviewers provided little quality-focused testing beyond noting the sensor support.

#14

Blood oxygen tracking was viewed as adequate but not cutting edge because reviewers noted the older Gen 4 sensor platform rather than Garmin’s newest hardware.

#15

Blood oxygen tracking was consistently treated as a missing premium health feature, with reviewers noting it remains reserved for higher-end Apple Watches.

#16

Blood oxygen tracking drew a clear caveat, with one reviewer repeatedly seeing lower SPO2 results than expected from other sensors.