All OLED iPhones, iPad Pros, newer (2018+) Macs, and just about any "flagship" Android phone have HDR capable displays. There's tens if not hundreds of millions

All OLED iPhones, iPad Pros, newer (2018+) Macs, and just about any "flagship" Android phone have HDR capable displays. There's tens if not hundreds of millions of devices that support HDR in the wild. Whether or not it's appreciated there's at least a huge population that can see HDR images correctly.