Blood oxygen saturation refers to the fraction of oxygen-saturated hemoglobin relative to total hemoglobin in the blood. This product is not a medical device, and is not intended to diagnose, treat, cure, or prevent any disease. Availability may vary by region.

Typical usage is 14 days, under the following conditions: heart-rate monitoring and sleep tracking on; screen checked briefly 200 times, 50 messages, 6 calls and 3 alarm reminders within 24 hours; workout for 30 minutes per week.Data from Huawei labs. Actual use time may vary depending on your usage habits.

Compared to HUAWEI Band 4 Pro. Data from Huawei Labs.

Availablity may vary depending on country or region. Only available on Android 6.0 or later, and iOS 12.0 or later.

Heavy usage is 10 days, under the following conditions: heart-rate monitoring on and HUAWEI TruSleep™ on; screen checked briefly 500 times, 50 messages, 6 calls and 3 alarm reminders within 24 hours; workout for 60 minutes per week.Data from Huawei labs. Actual use time may vary depending on your usage habits.

This feature is not supported when connected with an iOS phone. Availablity may vary by country or region.

This feature is not supported while connected with an iOS phone.

This feature is supported only on phones running EMUI 8.1 or later, and not supported while connected with an iOS phone.

This product is not a medical device, and is not intended to diagnose, treat, cure, or prevent any disease.