Why is the mileage record of the Xiaomi Watch S3 inaccurate?

When exercising outdoors, distance calculation depends on positioning information, If the GPS signal is weak, the positioning will be inaccurate, which can cause errors in exercising data. It is recommended that you choose an open field as much as possible when exercising outdoors to ensure a more accurate positioning. At the same time, the Xiaomi Watch S3 supports intelligent selection of positioning signal sources when connected to a mobile phone. Therefore, it is recommended to check whether the mobile phone has given complete positioning permissions to the Mi Fitness APP to improve distance accuracy.