Best 2024 Smartwatches for blood oxygen tracking

#1 Garmin Lily 2 Active
5.0

One reviewer was very positive about Pulse Ox readings, saying the watch routinely matched their normal SpO2 range.

Pros: battery life, GPS accuracy

Cons: onboard music storage, mapping and navigation

#2 Xiaomi Redmi Watch 5 Lite
4.5

Blood oxygen tracking was positively received where tested, with reviewers describing SpO2 monitoring as accurate or slightly more accurate than a comparison reading.

Pros: display quality, battery life

Cons: sleep tracking accuracy, voice assistant quality

#3 Xiaomi Redmi Watch 5
4.5

Blood oxygen tracking received limited but positive accuracy evidence, with one reviewer saying readings were close in testing.

Pros: battery life, display quality

Cons: smartphone notifications, sleep tracking accuracy

#4 Xiaomi Watch 2
4.3

Blood oxygen tracking received positive practical comments, including useful breathing-score context and close comparison to another oximeter-style device.

Pros: value for money, smartphone notifications

Cons: battery life, operating system experience

#5 Samsung Galaxy Watch 7
4.2

Blood oxygen tracking received positive but limited opinionated evidence, mainly from a reviewer who saw fewer random discrepancies than on the prior Galaxy Watch.

Pros: value for money, wellness insights

Cons: battery life, cross-platform compatibility

#6 Garmin Forerunner 165
4.0

Blood oxygen tracking was treated as a useful extra by reviewers who valued the reassurance, though broader accuracy was not deeply tested.

Pros: value for money, GPS accuracy

Cons: recovery insights, onboard music storage

#7 Google Pixel Watch 3
4.0

Blood oxygen tracking received limited but positive support, with one reviewer saying SpO2-related sleep data lined up with their patterns and baseline readings.

Pros: battery life, display quality

Cons: GPS accuracy, charging convenience

#8 Polar Vantage M3
4.0

SpO2 appears as part of a broader sensor suite that one reviewer says adds depth to health insights.

Pros: value for money, GPS accuracy

Cons: heart rate accuracy, companion app quality

#9 CMF Watch Pro 2
3.9

Blood oxygen tracking was viewed as a useful basic feature and several reviewers found readings reliable or broadly accurate for a budget watch.

Pros: value for money, battery life

Cons: GPS accuracy, sleep tracking accuracy

#10 Xiaomi Redmi 5 Active
3.8

Blood oxygen readings were mostly acceptable, but one comparison found the Lite model slightly more accurate than the Active.

Pros: call handling, smartwatch features

Cons: display quality, value for money

#11 Ticwatch Pro 5 Enduro
3.6

Blood oxygen tracking was split: some reviewers saw close agreement with other wearables, while others found readings inconsistent or dubious.

Pros: battery life, value for money

Cons: operating system experience, voice assistant quality

#12 Ticwatch Atlas
3.5

Blood oxygen results are mixed: some readings matched reference devices, while others produced erratic or dodgy spot readings.

Pros: battery life, display quality

Cons: operating system experience, voice assistant quality

#13 Polar Grit X2 Pro
3.5

Blood oxygen tracking was treated as useful for quick altitude-adaptation checks, with positioning caveats.

Pros: GPS accuracy, mapping and navigation

Cons: value for money, companion app quality

#14 Coros Pace Pro
3.0

Blood oxygen support was treated as limited because reviewers noted it as more of an on-demand or altitude-oriented feature rather than a deeply used health metric.

Pros: battery life, GPS accuracy

Cons: heart rate accuracy, smartwatch features

#15 Apple Watch Series 10
2.8

Blood oxygen tracking drew mixed evidence: one updated review said it was available, while several others criticized or noted disabled U.S. availability.

Pros: charging speed, display quality

Cons: battery life, water resistance

#16 OnePlus Watch 2R
2.5

Blood oxygen tracking was available, but one reviewer criticized SpO2 readings as relatively slow.

Pros: battery life, value for money

Cons: companion app quality, charging convenience

#17 Apple Watch Ultra 2
2.0

Blood oxygen tracking drew negative evidence in older reviews because patent-dispute availability issues frustrated users who wanted the feature.

Pros: battery life, voice assistant quality

Cons: value for money, mapping and navigation

#18 Samsung Galaxy Watch Ultra (2024)
2.0

Blood oxygen evidence was limited and negative, with one review finding the overnight readings unusually low versus other wearables.

Pros: battery life, sleep tracking accuracy

Cons: wellness insights, style and design

#19 Garmin Lily 2
1.8

Pulse Ox/SpO2 is treated skeptically, with reviewers warning that it can hurt battery life and produce readings that seem too low.

Pros: battery life, style and design

Cons: sleep tracking accuracy, workout tracking variety

#20 Suunto Race S
1.0

Blood oxygen tracking was only clearly evaluated in one review, and that reviewer called the nighttime SpO2 results poor.

Pros: value for money, battery life

Cons: heart rate accuracy, onboard music storage