Why is the oppo bracelet out of sync?

No mobile phone is connected to update the weather.

A smart bracelet is a wearable smart device. Through the smart bracelet, users can record real-time data such as exercise, sleep, and some diets in daily life, and synchronize these data with mobile phones on an equal footing, thus playing a role in guiding healthy life through data.

As a wearable device, smart bracelets often look cool. This design style of smart bracelet is quite attractive to users who are used to wearing jewelry. The small smart bracelet is small in size and powerful in function. Its development involves a series of developments, such as data instruction transmission from smart bracelet MCU to Bluetooth IC, data communication protocol from Bluetooth to APP, communication debugging logic realization from APP to mobile phone, database algorithm design from APP data to cloud server, etc.

Take sleeping as an example. Set the bracelet to sleep mode before going to bed, and synchronize with the smartphone in real time through low-power Bluetooth, and you can see information such as sleep time, waking time, deep sleep/light sleep, and overall sleep quality. For people who exercise to lose weight, the smart bracelet is a responsible personal trainer, which can tell users the daily exercise path, calorie consumption and calorie intake; You can set exercise goals, such as how many steps to take and how many calories to burn. , and also shows the completion rate of the exercise in real time.