SAMSUNG QN77S90FAFXZA 77" 4K OLED Smart TV 120Hz Graphite Black (2025)

77-inch OLED TV with 120Hz panel

The Samsung QN77S90FAFXZA is a 77-inch 4K OLED Smart TV built for viewers who want pixel-level contrast and a 120Hz native refresh rate. Its NQ4 AI Gen3 processor drives 4K AI Upscaling Pro and AI Motion Enhancer Pro for sharper detail from any source. A 2.1-channel speaker system with Dolby Atmos and OTS Lite handles audio, while the Tizen platform provides streaming apps and Samsung Health integration.

Check HDMI ports and wall-mount pattern before

The set includes four HDMI inputs and a bundled Austere 2.5m 8K HDMI cable that supports Variable Refresh Rate, Auto Latency Mode, Quick Media Switching and Quick Frame Transport. Confirm your AV receiver or soundbar has an eARC-capable HDMI port to use the High-Fidelity eARC feature. Verify the VESA mounting pattern matches your bracket and that your network can use Wi-Fi 5 or the wired Ethernet connection.

Replaces older 60Hz LED

The jump is worth it if your current TV tops out at 60Hz and you watch sports, play games at 120fps or want deeper blacks without blooming. Motion Xcelerator 144Hz and 120Hz VRR support reduce judder and tearing that older panels cannot. Buyers who need more than four HDMI devices or require a newer Wi-Fi standard should note those limits.