Best Blood Oxygen Watch Apps

249+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated October 2026

Finding the right blood oxygen watch apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Blood Oxygen Watch Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesOct 2026
2Blood Oxygen SpO2 for WatchBlood Oxygen SpO2 for WatchFree—NoYesSep 2026
3Blood Oxygen Level: AnalyzerBlood Oxygen Level: AnalyzerFree3.9★ (190)NoYesSep 2026
4Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (425)NoYesSep 2026
5SPO2er: Blood Oxygen on WatchSPO2er: Blood Oxygen on Watch$0.994.9★ (8)NoNoSep 2026
6O2 Buddy: Blood Oxygen SpO2O2 Buddy: Blood Oxygen SpO2$0.994.6★ (46)NoYesSep 2026
7Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoOct 2026
8Blood Oxygen App- WatchBlood Oxygen App- WatchFree4.2★ (668)NoYesOct 2026

Top Picks for Blood Oxygen Watch

Blood Oxygen App#1

Blood Oxygen App by AboutMe Apps, Inc.

SpO2 Level Monitor・Heart Rate
Editor's Choice
🏥 Medical
4.6😞(31K ratings)
FreeIn-App Purchases
#25in Medical
Blood Oxygen App screenshot 1
Blood Oxygen App screenshot 2
Blood Oxygen App screenshot 3
Blood Oxygen App screenshot 4
Blood Oxygen App screenshot 5
Blood Oxygen App screenshot 6

Monitor blood oxygen levels and heart rate using your phone's camera or by syncing with your Apple Watch. Track vital signs, share data with your doctor, and access curated health articles. Includes breathing exercises and sleep reports.

What We Love

  • ⭐ Awesome app
  • ⭐ Very easy to use
  • ⭐ Helpful for monitoring health conditions
  • ⭐ Detailed data logging

Room to Improve

  • ❌ Doesn't accurately measure blood oxygen levels
  • ❌ Requires premium subscription for key features
  • ❌ Inconsistent and unreliable performance
  • ❌ Deceptive marketing and false advertising
  • ❌ No way to contact customer support
Blood Oxygen Level: Analyzer#3

Blood Oxygen Level: Analyzer by Svetlana Rabosh

O2, pulse calculator: Tracker
Worth Considering
🏥 Medical
3.9(190 ratings)
FreeIn-App Purchases
Blood Oxygen Level: Analyzer screenshot 1
Blood Oxygen Level: Analyzer screenshot 2
Blood Oxygen Level: Analyzer screenshot 3
Blood Oxygen Level: Analyzer screenshot 4
Blood Oxygen Level: Analyzer screenshot 5
Blood Oxygen Level: Analyzer screenshot 6

Track your blood oxygen saturation levels and monitor changes over time. Log additional symptoms to gain a more comprehensive understanding of your condition. Supports multiple user profiles and synchronizes with HealthKit for pulse and oxygen data.

More Blood Oxygen Watch apps to explore

FAQ about Blood Oxygen Watch

What are the best blood oxygen watch apps for iPhone?
Blood Oxygen App tops our blood oxygen watch apps ranking as of October 2026, with a 4.6-star average from 31K App Store ratings, and it's free to download.
Yes — 18 of the top blood oxygen watch apps we rank are free to download, including Blood Oxygen App and Blood Oxygen SpO2 for Watch.
Blood Oxygen App has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ blood oxygen watch apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.