Best Blood Oxygen Watch Apps

249+ iOS apps curated and reviewed

4.0 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 Monitor: SpO2Blood Oxygen Monitor: SpO2Free—NoYesOct 2026
2Blood Oxygen AppBlood Oxygen AppFree4.6★ (31K)NoYesOct 2026
3Blood Oxygen LevelBlood Oxygen LevelFree4.3★ (2K)YesNoOct 2026
4Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (425)NoYesOct 2026
5Blood Oxygen App- WatchBlood Oxygen App- WatchFree4.2★ (697)NoYesOct 2026
6Blood OxygenBlood OxygenFree3.9★ (128)NoNoSep 2026
7SPO2er: Blood Oxygen on WatchSPO2er: Blood Oxygen on Watch$0.994.9★ (8)NoNoOct 2026
8O2 Buddy: Blood Oxygen SpO2O2 Buddy: Blood Oxygen SpO2$0.994.6★ (46)NoYesOct 2026

Top Picks for Blood Oxygen Watch

Blood Oxygen App#2

Blood Oxygen App by AboutMe Apps, Inc.

SpO2 Level Monitor・Heart Rate
Strong Contender
🏥 Medical
4.6😞(31K ratings)
FreeIn-App Purchases
#23in Medical
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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#3

Blood Oxygen Level by Enrique Villahermosa Juara

Record pulse and oxygen level
Worth Considering
🏥 Medical
4.3😞(2K ratings)
FreeAds
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Easily record your daily pulse and blood oxygen levels. Track your health statistics over time with simple data entry and clear visualizations. Requires an external device like a pulse oximeter or smartwatch for measurements.

What We Love

  • 👍 Simple and easy interface
  • 🚀 Impressive work
  • 💡 Helpful for recording health conditions

Room to Improve

  • 🐛 Doesn't record anything
  • 🐛 Flickering and freezing issues
  • 🔋 Ads make it unusable
  • 🐛 Doesn't give accurate readings
  • 🐛 Doesn't sync with devices

More Blood Oxygen Watch apps to explore

FAQ about Blood Oxygen Watch

Are there free blood oxygen watch apps for iPhone?
Yes — 18 of the top blood oxygen watch apps we rank are free to download, including Blood Oxygen Monitor: SpO2 and Blood Oxygen App.
Blood Oxygen Monitor: SpO2 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.