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Oxygen Saturation – SpO₂ Tracker

Monitor your blood oxygen levels with smart alerts, historical insights, and detailed charts on iPhone and Apple Watch.

Your blood oxygen level (SpO₂) reflects how well your lungs and red blood cells deliver oxygen to your body. Tracking this vital sign helps you understand your overall wellness and supports informed health decisions.

Key Features:
• View your latest SpO₂ measurement directly on iPhone and Apple Watch
• Explore detailed 7-day averages and daily min/max charts
• Set custom thresholds and receive notifications for low readings
• Includes widgets and complications for all iOS 17+ and watchOS 10+ widget types
• Minimal, elegant design with clear health insights

Requirements:
• Compatible with Apple Watch Series 6 or newer
• Requires access to Apple Health to read blood oxygen data
• Widgets and complications automatically show your latest values if permissions are granted

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6, because this Apple Watch has the sensor you need to measure your oxygen saturation.
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.
- In case you are still not receiving any data, please open your Apple Health App and check if it is able to measure your oxygen saturation.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6, because this Apple Watch has the sensor you need to measure your oxygen saturation.
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.
- In case you are still not receiving any data, please open your Apple Health App and check if it is able to measure your oxygen saturation.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6, because this Apple Watch has the sensor you need to measure your oxygen saturation.
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.
- In case you are still not receiving any data, please open your Apple Health App and check if it is able to measure your oxygen saturation.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6, because this Apple Watch has the sensor you need to measure your oxygen saturation.
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.
- In case you are still not receiving any data, please open your Apple Health App and check if it is able to measure your oxygen saturation.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6!
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6 or later!
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6 or later!
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.

Your blood oxygen level represents the percentage of oxygen that your red blood cells carry from your lungs to the rest of your body. Knowing how well your blood performs this vital task can help you understand your overall wellness. The majority of people have a blood oxygen level of 95 - 99%. However, some people live a normal life with blood oxygen levels below 95%.

The Apple Watch can estimate your percentage of oxygen in your bloodstream and stores the data in the Health Store. With the Oxygen Saturation app, you always see your latest value directly on your wrist. This App supports all complications, so make your Apple watch a real Fitness Gadget!!

How to Use:
- ATTENTION: Oxygen Saturation only works if you have an Apple Watch Series 6 or later!
- The app needs to connect with the Apple’s Health app to display the recorded data on your Apple Watch, as complication or your Iphone.
- Using iOS 14 you can add a Widget to your home screen on your IPhone to display the latest measurement.