Letv box U4
Advantages: Slim appearance is the focus of design, and LeTV's focus desktop, including home carousel, is LeTV's unique system content; 4K/3D/ Dolby content compilation; Super sports have a say in all boxes; The voice function is widely used and easy to operate.
Disadvantages: not equipped with HDR；; ; Letv's membership form is quite tangled; There are fewer interfaces.
Tmall Box 3Pro Black Edition
Advantages: cute design, solid technology and comprehensive interface; The UI design is simple and easy to understand, and the operation is simple; Balance performance; 4K content compilation; Rich function expansion; Strong voice function; HDR+HLG .
Disadvantages: Compared with the other two, the content resources are not rich (fortunately, they can be expanded through the Betan market).
Xiaomi He Zi 3S
Advantages: strong sense of design, calm and extraordinary; PatchWall puzzle wall system has distinctive features, convenient function guidance and interaction; Touch the remote controller with high playability; Content resources cover a wide range and are more comprehensive; HDR； Excellent temperature control.
Disadvantages: the misoperation of the remote control is worrying; Few interfaces; The voice function is trivial.
Tencent Aurora Box F2
Advantages: the design is layered and harmonious with TV. It has CPE function, comes with WIFI when starting, and can surf the Internet without plugging in a network cable, which is suitable for various usage scenarios. Simple operation; Balance performance; 4K/60 frame decoding; Rich in functional expansion.
Disadvantages: it is not equipped with HDR, and its own WIFI network speed is slightly slower than the network cable.