
Samsung Class S84D Series 77" 4K Ultra HDR Smart OLED Tizen TV
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Our take on the Samsung Class S84D Series 77" 4K Ultra HDR Smart OLED Tizen TV
The Samsung S84D is a 77-inch 4K OLED TV running the Tizen smart platform with HDR10 support. OLED panels deliver per-pixel light control, so blacks are true black and contrast is very high, which suits dark-room movie watching. It sits below Samsung's flagship OLEDs, so it skips the brightest panel and the anti-glare coating those models carry. Buyers pick it for a big-screen OLED with Samsung's app and gaming features rather than for peak brightness.
- OLED panel gives deep blacks and strong contrast
- 77-inch screen is large for the room
- Tizen has all the major streaming apps
- Four HDMI inputs cover a console, soundbar and streaming box
- Slim OLED design mounts close to the wall
Samsung Class S84D Series 77" 4K Ultra HDR Smart OLED Tizen TV prices at every store
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What reviewers say
Owners of Samsung's S84D-class OLEDs praise the picture in dark rooms, the tidy Tizen interface and the gaming features. Common complaints are lower brightness than QD-OLED rivals and reflections in bright rooms.
- Picture qualityPraisedOwners say blacks are deep and contrast is excellent, especially for movies at night.
- BrightnessCriticisedViewers in bright rooms find it dimmer than QD-OLED and Mini-LED rivals.
- ReflectionsCriticisedThe glossy screen shows window and lamp reflections during daytime viewing.
Questions and answers
- Is the S84D good for bright rooms?
- It is best in dim or dark rooms. Peak brightness is lower than Samsung's QD-OLED sets and the screen is glossy, so daytime reflections are visible.
- Does it support Dolby Vision?
- No. It handles HDR10, so Dolby Vision content plays in standard HDR instead.
- Is it good for gaming?
- Yes. It has HDMI 2.1 inputs, low input lag and gaming settings in Tizen, and OLED motion is clean.
- Should I worry about burn-in?
- OLED can retain static images over long periods. Vary content and avoid leaving news tickers or game HUDs on for hours.
- Do I need a soundbar?
- For movies, yes. The built-in speakers are fine for everyday TV but lack bass and scale.
- How does it compare with Samsung's S95D?
- The S95D uses a brighter QD-OLED panel with an anti-glare coating. The S84D trades some brightness and glare handling for the same OLED contrast and Tizen platform.



















