Mi9Tpro what is the strange sensor on top side ?

[adrenochrome]

Hello,

anyone know what is this strange rectangular area ? looks like a infrared led but there is definitely not such kind of sensor inside this model

thanks in advance,

best regards,

 

[Poney70]

Hello,

There are, in total, 4 "strange" rectangular areas on my Mi 9T. (2 bottom, 1 left, 1 top)

I think there are used as mobile antennas.