The Xiaomi Smart Band 2 connected bracelet is the Deal of the Day on AliExpress. It is 27.99 euro instead of 39.99 euros.
The connected bracelet offers most of the features of a connected watch, without breaking the bank. Once connected via Bluetooth to your smartphone, the bracelet allows you to read your messages and receive notifications of messages and calls. The bracelet also keeps an eye on your heart rate throughout the day and your workouts, and it can also give you your SpO2, including while you sleep.