objective-c - Asking a software design question: the processing of data received by the app through Bluetooth.

Question

1. The motion data on the bracelet must be sent back to the app and transmitted via Bluetooth.
2. Bluetooth can only transmit 20 bytes of data at a time.
3. Now there are 100 pieces of 20-byte data on the bracelet sent back to the app. How should the app handle it?
4. My idea is to store these 100 data packets through plist.
5. Is it suitable? Is there a better method?
6. How to ensure the accuracy of data transmitted through Bluetooth.