Xiaomi showcased three accessories alongside the Mi Max, but details are pretty scarce at the moment. The new generation Mi Band was on stage, but that’s all we got.
Then there’s the 10,000mAh battery. It measures 12.6mm thick and has a USB Type-C (which can charge the battery or charge a phone) and a regular USB port. The battery will cost CNY 150 ($23/20).
The Xiaomi iHealth box will measure biometric data, display it on its 4.3″ color screen and send it to your phone over Wi-Fi. I don’t trust Google Translate enough to tell what kind of biometric data the iHealth tracks, but it will cost CNY 400 ($60/54)
Source (in Chinese)