Best smartwatches with blood oxygen monitoring

The Samsung Galaxy Watch 3 features a circular 1.4-inch Super AMOLED display with Corning Gorilla Glass DX protection and is powered by an Exynos 9110 chipset. It features an accelerometer, heart rate sensor, gyroscope and offers 8GB of internal storage. It uses red LED and infrared rays to measure your SpO2 levels, allowing you to monitor the oxygen saturation in your bloodstream.It comes with fall detection functionality that sends an SOS to your emergency contacts.

The Apple Watch Series 6 features an always-on 1.57-inch LTPO OLED display with Sapphire Crystal glass protection and is powered by a dual-core Apple S6 chipset. It comes with a new blood oxygen sensor and a dedicated blood oxygen app that allows you to monitor your SpO2 levels. It features an optical heart rate sensor, electrical heart sensor, accelerometer and gyroscope. It allows you to manage calls, send SMS and play music directly from the watch.It features a waterproof design, allowing you to wear your smartwatch while swimming.

The Amazfit Bip U smartwatch features a 1.43-inch always-on display. It is equipped with an optical heart rate sensor, blood oxygen level measurement, 3-axis accelerometer and barometer. It is 5 ATM certified for water resistance and can be used while swimming.It offers a battery life of up to 5 days with heavy usage and 9 days with normal usage.

The Noise Colorfit Pro 3 features a rectangular 1.55-inch HD LCD screen and offers a full touch interface. It offers blood oxygen monitoring and comes with an accelerometer, gyroscope, heart rate sensor. It is IP68 rated for water and dust resistance and allows you to manage calls, view notifications, control music playback and more.It offers up to 10 days of battery life on a single charge.

The OnePlus Watch features a circular 1.39-inch AMOLED display and comes with a silicone band. It comes with 4GB of internal storage, allowing you to store up to 500 songs in the watch. The watch offers over 110 workout modes and tracks your heart rate, blood oxygen saturation and sleep levels. It comes with a IP68 rating for water and dust resistance.The watch offers a battery life of up to 14 days on a single charge.

The Amazfit GTS2 Mini Smart Watch features a 1.55-inch AMOLED display with customizable watch faces. It allows you to monitor your blood oxygen levels and comes with a heart rate sensor. It comes with sleep quality monitoring, stress monitoring and offers over 70 sports modes. It comes with 5 ATM water resistance, allowing you to use it while swimming.It offers a battery life of up to 21 days on a single charge.