Xiaomi teases a new device for a June 28 release, is it the Mi Max 3?

Xiaomi is teasing some new device for a June 28 release through a video uploaded to Chinese Tencent's video sharing platform. It shows a mysterious sky blue retail box in a Xiaomi Mi Home store. The video ends with the date June 28. There's no specific message attached to the video so we can only guess at what the upcoming device is. Given the specific color of the retail box, it could be a Sky Blue color variant of an existing device. Another guess is the Xiaomi Mi Max 3. Yesterday Xiaomi unveiled the Redmi 6 Pro and Mi Pad 4 and we expected to see the Mi Max 3 in July, so it's...