Best 2023 Smartwatches for blood oxygen tracking

#1

One reviewer found blood oxygen readings close to a pulse oximeter, supporting strong SpO2 tracking confidence.

#2

Blood oxygen tracking received limited but positive accuracy evidence, with one reviewer calling a 1% deviation acceptable and another saying SpO2 ranges were in a good place.

#3

Blood oxygen tracking was generally useful and easy once working, though one reviewer needed several attempts to get an SpO2 reading.

#4

Blood oxygen tracking was useful but mixed: reviewers praised alignment with other devices, while one noted readings could be tricky and sometimes inconclusive.

#5

Blood oxygen tracking was generally acceptable in the limited evidence, coming close to other devices but requiring better wrist placement for accuracy.

#6

Blood oxygen tracking was lightly covered but positively judged in the one review that evaluated it directly.

#7

Blood oxygen tracking receives limited but positive usefulness evidence as another health metric the reviewer liked monitoring.

#8

Blood oxygen tracking received limited but positive evidence, with one reviewer reporting readings stayed in the expected range during testing.

#9

Blood oxygen tracking was treated as part of the watch’s broader accurate health-monitoring package in one review.

#10

Blood oxygen readings were mostly acceptable in direct comparisons, though at least one reviewer saw inconsistent one-tap results.

#11

Blood oxygen tracking receives modestly positive evidence, with readings described as decent against an oximeter rather than perfectly accurate.

#12

Blood oxygen tracking is useful as a spot-check feature, but reviewers reported stillness requirements and occasional errors.

#13

Blood oxygen tracking drew concern because two reviewers reported overnight readings that seemed unusually or slightly low compared with other devices.

#14

Blood oxygen tracking is weakly supported and mixed-to-negative: reviewers noted battery drain from using it and one scientific test was unimpressed with oxygen saturation measurements.

#15

Blood oxygen tracking drew low confidence, with reviewers reporting suspect readings, incomplete overnight capture, and inaccurate low values.

#16

Blood oxygen tracking drew criticism from one reviewer who saw automatic measurements as superfluous and battery-costly.

#17

Blood oxygen tracking drew negative accuracy evidence in one review, where readings did not match other trackers or a pulse oximeter.