Samsung QN77S90DAFXZA

Overview

The Samsung QN77S90DAFXZA is a 77 inch OLED Smart TV designed to deliver stunning 4K UHD visuals with HDR10 Plus support and a smooth 144 Hz refresh rate. It suits film enthusiasts who appreciate deep contrast and accurate colors, gamers seeking responsive performance, and anyone who streams content and wants every detail to remain sharp and vibrant. The built-in NQ4 AI Gen2 processor enhances picture quality by upscaling lower-resolution content and adjusting brightness and color dynamically based on the scene and ambient lighting.

Key features

• OLED panel technology that produces deep blacks and vivid colors for lifelike images
• 144 Hz refresh rate that ensures smooth motion during fast-paced sports and gaming
• NQ4 AI Gen2 processor that intelligently upscales content and optimizes picture settings in real time
• Integrated 2.1 channel audio system delivering 40 watts with Dolby Atmos and Object Tracking Sound Lite for immersive sound
• Four HDMI 2.1 ports supporting 4K at 144 Hz with variable refresh rate and automatic low-latency mode for seamless gaming and media playback
• Wi-Fi 6E and Bluetooth 5.2 for fast wireless streaming and easy connection to headphones or wireless speakers
• Samsung Tizen OS with a unified home screen featuring popular apps, Samsung TV Plus live channels, Gaming Hub, and built-in Alexa voice control for hands-free operation

Key specs

• Display size: 77 inches
• Resolution: 4K UHD (3840 x 2160)
• Refresh rate: 144 Hz
• Processor: NQ4 AI Gen2
• Audio output: 2.1 channel, 40 watts
• HDR support: HDR10 Plus
• HDMI ports: 4 x HDMI 2.1 with eARC
• Wireless connectivity: Wi-Fi 6E, Bluetooth 5.2
• Operating system: Samsung Tizen OS

Connectivity and compatibility

This TV offers versatile connectivity options to integrate smoothly with your home entertainment setup. The four HDMI 2.1 inputs allow you to connect multiple devices such as gaming consoles, Blu-ray players, and streaming boxes while supporting high refresh rates and advanced gaming features. The eARC port simplifies connecting a soundbar for enhanced audio without extra cables. Wireless standards like Wi-Fi 6E and Bluetooth 5.2 ensure fast and stable streaming as well as effortless pairing with wireless headphones or rear speaker kits.

• Four HDMI 2.1 ports with support for 4K at 144 Hz and eARC for high-quality audio
• Wi-Fi 6E for reliable and fast internet connectivity
• Bluetooth 5.2 for connecting wireless audio devices and accessories

Performance and reliability

The combination of OLED technology and the NQ4 AI Gen2 processor results in a display that adapts intelligently to your viewing environment, maintaining accurate colors and optimal brightness. The PANTONE validation ensures color fidelity that respects the creator’s intent, making it a strong choice for movie lovers and content creators alike. The 2.1 channel audio system with Dolby Atmos support adds depth and spatial accuracy to sound, enhancing immersion without requiring additional equipment.

Ideal uses and environments

This 77 inch OLED TV fits well in spacious living rooms or dedicated home theaters where its large screen and high refresh rate can be fully appreciated. It is well suited to users who enjoy a mix of cinematic viewing, competitive gaming, and streaming diverse content. The smart features and voice control also make it convenient for everyday use, allowing easy access to apps and smart home integration without interrupting your entertainment.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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