Need to work on the app

The directions are not clear, not spelled or worded right. Its very hard to under stand how the app works and what the abbreviations are. I think it explains it all in Chinese but for those who do not read it we need it in English nice and clear. The wristband is ok. I wish I was able to switch it to sleep mode through the band rather then setting it in the app because I dont go to sleep the same time everyday. How do you even work the sleep mode in the app??? I would like it I had the option to have it on 12 hour or 24 hour mode. I think if the app was user friendly it might be ok.

Waiting for more!!!! about Vidonn(唯动)