The Samsung S89C has excellent HDR peak brightness. Bright highlights are vibrant on this TV, although, like all OLEDs, the TV has an aggressive Automatic Brightness Limiter (ABL), which significantly dims bright highlights when they take up a large portion of the screen. Thus, scenes with a lot of bright areas, like a bright sunny day at the beach, are significantly dimmer on this TV than they are on a non-OLED panel.

You can set Peak Brightness to 'Off' in HDR if the brightness fluctuations bother you, but this just makes every scene much dimmer, so now highlights never stand out.

These measurements are after calibrating the HDR white point with the following settings:

  • Picture Mode: Filmmaker
  • Brightness: 50 (Max)
  • Contrast: 50 (Max)
  • Contrast Enhancer: Off
  • HDR Tone Mapping: Static
  • Color Tone: Warm2
  • Color Space Settings: Auto
  • Peak Brightness: High

If you prefer a brighter but less accurate image, you can set HDR Tone Mapping to 'Active':