The 2nd generation of Xiaomi bracelet can store several days' data.

I don't have my mobile phone with me. Can mi band record and store data? What is the longest data that can be stored?

Xiaomi bracelet 2 can store data separately, and you don't need to bring your mobile phone when you go out to run or sleep. When you need to synchronize data, just turn on the Bluetooth of your mobile phone and connect it close to the bracelet.

The main body (rice grain) of Xiaomi bracelet 2 can keep sports data information for about 7 days at the longest.

Data that has been synchronized to Xiaomi Sports App will be automatically uploaded to the cloud for storage. If you change to a new mobile phone, you can synchronize the previous data from the cloud to the new mobile phone by binding the previous Xiaomi account to the bracelet on the new mobile phone.