10 Best 4 K Ultra HD Smart Tvs 2025 in the United States

The TCL 55-Inch Class S5 UHD 4K LED Smart TV (55S551F, 2024 Model) offers a robust package for those seeking a high-quality viewing experience. With its 4K UltraHD resolution, the TV brings out incredible detail, enhanced further by HDR PRO+ with Dolby Vision, HDR10+, HDR10, and HLG, ensuring vibrant and accurate colors. Its high brightness LED backlight makes it suitable for any room lighting conditions. The inclusion of Motion Rate 240 with MEMC Frame Insertion ensures smooth motion clarity, beneficial for watching sports or fast-action movies.

The built-in Fire TV platform gives you access to a vast library of streaming content, and Alexa-enabled voice remote adds convenience to your viewing experience. Apple AirPlay 2 compatibility is a nice touch for Apple users who wish to stream content from their devices. The Auto Game Mode (ALLM) is a great feature for gamers, reducing input lag for a better gaming experience. On the audio front, Dolby Atmos and DTS Virtual:X provide an immersive sound experience, further enhanced by the Enhanced Dialogue Mode for clarity.

However, the refresh rate is limited to 60 Hz, which may not satisfy the needs of hardcore gamers looking for the highest refresh rates. While the TV does offer multiple connectivity options including Bluetooth, Wi-Fi, USB, Ethernet, and HDMI, some users might find the 2.83-inch depth and 30.9-pound weight a bit cumbersome for wall mounting. This TV is a solid choice for general entertainment, streaming, and light gaming.

The Samsung 65-Inch QLED Q8F is a strong choice if you want a large 4K Ultra HD TV that offers vibrant colors and sharp images. Thanks to its Quantum Dot technology, it can display over a billion colors, which makes bright and dark scenes look very realistic. The TV also uses an AI processor to improve picture and sound quality depending on what you watch, so movies and shows look and sound better without you having to adjust settings.

It supports a high refresh rate of 120Hz and allows smooth gaming at up to 4K 144Hz with variable refresh rate, which helps reduce motion blur and screen tearing during fast action or gaming. The built-in smart platform gives you access to thousands of free channels and apps without extra subscriptions, and with Alexa voice control built-in, it’s easy to use. Connectivity options are plentiful, including Bluetooth, Ethernet, multiple HDMI and USB ports, and Wi-Fi, so hooking up devices or streaming is hassle-free.

The TV’s slim design means it won’t take up much space on your wall. If you want a well-rounded 65-inch 4K TV with excellent color performance, smooth motion for gaming and sports, and smart features built-in, this Samsung model is a compelling option.

The Samsung 50-Inch QLED Q7F Series (2025 model) is a solid choice if you're looking for a mid-sized 4K Ultra HD smart TV. Its 50-inch screen with Quantum Dot technology delivers vibrant colors and deep blacks, thanks to Quantum HDR and HDR10+ support, which helps you see more detail even in bright or dark scenes. The built-in Q4 AI Gen1 Processor boosts picture and sound quality automatically based on what you're watching, making everything look and sound clearer without needing manual adjustments. While the 60 Hz refresh rate is standard and works fine for most TV shows and movies, it might not offer the ultra-smooth motion some gamers look for during fast-paced gaming sessions. Speaking of gaming, it does include a Game Mode and access to Samsung’s Gaming Hub, which is a nice bonus if you enjoy casual gaming. The smart platform includes Alexa built-in and offers access to over 2,700 free channels, plus popular streaming apps, giving you plenty of content without extra subscription costs.

Connectivity options are comprehensive, including Bluetooth, Wi-Fi, Ethernet, HDMI, and USB ports, so connecting your devices should be straightforward. Audio-wise, the Object Tracking Sound Lite feature enhances the audio experience with more immersive sound, though it may not replace a dedicated sound system for audiophiles. Security is a thoughtful addition, with Samsung Knox protecting your personal info and connected devices. The 60 Hz refresh rate limits performance for those wanting ultra-smooth motion for gaming or sports, and the built-in speakers, while decent, might lack the fullness some users expect. Its size and features make it a well-rounded TV for everyday viewing, streaming, and casual gaming, especially if you want great picture quality and smart features without stepping up to a larger or more expensive model.