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: health tracking accuracy, blood oxygen tracking

Cons: ECG functionality, onboard music storage

#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: cross-platform compatibility, pairing reliability

Cons: third-party app support, contactless payments

#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: step counting accuracy, display quality

Cons: voice assistant quality, contactless payments

#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: charging speed, Bluetooth connectivity

Cons: ECG functionality, recovery insights

#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: display quality, durability

Cons: cross-platform compatibility, antioxidant index

#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: smartphone notifications, watch face quality

Cons: music controls, Wi-Fi connectivity

#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: outdoor visibility, pairing reliability

Cons: calorie tracking usefulness, materials quality

#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: brightness, display quality

Cons: call handling, voice assistant 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: pairing reliability, materials quality

Cons: data privacy, health 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: wellness insights, Bluetooth connectivity

Cons: contactless payments, third-party app support

#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: menu navigation, battery life

Cons: ECG functionality, 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: touchscreen responsiveness, software smoothness

Cons: ECG functionality, LTE connectivity

#13 Polar Grit X2 Pro
3.5

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

Pros: recovery insights, build quality

Cons: contactless payments, onboard music storage

#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: outdoor visibility, display quality

Cons: contactless payments, flashlight usefulness

#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: reliability, comfort

Cons: calorie tracking usefulness, mapping and navigation

#16 OnePlus Watch 2R
2.5

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

Pros: software smoothness, charging speed

Cons: ECG functionality, safety features

#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: app ecosystem, smartwatch features

Cons: cross-platform compatibility, blood oxygen tracking

#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: build quality, software smoothness

Cons: stress tracking, blood oxygen tracking

#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: pairing reliability, wellness insights

Cons: ECG functionality, body temperature tracking

#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: workout tracking variety, value for money

Cons: blood oxygen tracking, contactless payments