I like the built quality of Mi 4X 55 inch tv. The picture quality is superior with 1.7 billion colours as it supports 4K quality and has HDR10 support and also the screen refresh rate is 60 Hz The patchwall feature make the interface smooth and interesting.It supports google voice search and the remote listen the human voice very clearly. It supports Dual band Wifi and allow you to access online content. Inbuilt Chromecast allow us to mirror our smartphone to the TV screen. The audio output is also brilliant because it has 20W speakers. As it is a smart TV based on Android 8.1 and has the 64 bit processor with 2 GB RAM and 8 GB internal Storage, which I think not sufficient. It supports 3 HDMI ports, two USB ports, through which you can expand the storage. The TV has some pre installed apps like Hotstar, Voot , Sony LIV, Zee5, Viu, TVF play and play store also. System supports multiple languages like Marathi, Gujarati, Malayalam, , Bhojpuri, oyira, English , Hindi, Punjabi, Telugu.