Cierto. Tienes razón.

The UF850 could go very bright, measuring 423cd/m2 with everything maxed out in dynamic mode but this TV doesn't support High Dynamic Range (HDR) and as far we know, LG have no intention of adding HDR to the UF850.

sacado de: LG 65UF850V (UF850) UHD 4K LED TV Review

En cualquier caso, si quieres asegurarte, manda un e-mail a LG.