Saw the news from xiaomitoday. The store is 570sqm big. It had everything that sold online at the store as claimed.

I will be visiting this store in September and will take videos and pictures of the store.

I will upload it into the YouTube after the video is up.
Stay tuned with the biggest Xiaomi store.
Of course, I will not forget the rest of the store in Beijing too.

Will do a Xiaomi store round tour in Beijing