10 Best 40 Inch Smart Tvs 2025 in the United States

The LG 42-Inch OLED evo AI 4K C5 Series Smart TV offers an impressive viewing experience thanks to its OLED display, which delivers perfect blacks and vibrant colors by controlling each pixel individually. With a 4K resolution and support for Dolby Vision and HDR10, the picture quality is sharp and bright, making movies and shows look stunning. The TV’s 120Hz refresh rate ensures smooth motion, which is great for fast scenes in sports or gaming, although some gamers might wish for a full 144Hz. It also features low response times and advanced gaming tech like NVIDIA G-Sync and AMD FreeSync, making it a strong choice for gaming enthusiasts.

Sound is enhanced by Dolby Atmos and LG's Wow Orchestra technology, providing immersive audio without needing extra speakers. The built-in Alpha 9 AI processor boosts picture and sound quality, adapting to what you watch, which is helpful if you're not keen on manual settings. Its smart platform, webOS, is user-friendly and offers many streaming apps plus handy voice assistants like Alexa built-in. Connectivity options are solid with multiple HDMI 2.1 ports, USB, Bluetooth, and Wi-Fi, supporting various devices easily.

The design is sleek and modern, fitting well in a living room, and the 42-inch size is good for medium-sized spaces, although slightly bigger sizes might suit larger rooms better. A minor consideration is that the TV is priced towards the upper mid-range, so it might be a bit expensive for budget shoppers. This LG model is well suited for someone wanting excellent picture and sound quality, smart features, and a good gaming experience in a compact 42-inch OLED screen.

The TCL 43-Inch Class S5 UHD 4K LED Smart TV with Fire TV (43S551F, 2024 Model) offers a lot of impressive features for its category. The 4K UltraHD resolution provides stunning detail, which is four times the resolution of 1080p Full HDTVs. It also boasts HDR PRO+ with Dolby Vision, HDR10+, HDR10, and HLG, ensuring enhanced contrast and vibrant colors, making your viewing experience more realistic and immersive. The Fire TV platform is a great addition, giving you access to a vast array of streaming services and live TV, all in one place.

Alexa built-in with voice remote makes navigation and control easy, adding to the convenience. The TV also supports Apple AirPlay 2, which is a nice touch for iOS users. For gamers, the Auto Game Mode (ALLM) minimizes input lag for smoother gameplay. On the audio side, it features Dolby Atmos and DTS Virtual:X for a more immersive sound experience, and an Enhanced Dialogue Mode for clearer audio in movies and shows. The design is sleek with a bezel-less look, making it a stylish addition to any room.

However, there are a few drawbacks. The refresh rate is only 60 Hz, which might not be ideal for those who prioritize super-smooth motion, especially in fast-paced action scenes or sports. Additionally, while the built-in speakers are decent, they might not satisfy audiophiles or those looking for a more powerful sound system. Lastly, although the viewing angles are generally good, there may be some color distortion when viewed from extreme angles. This TV is a strong contender in the 40-inch smart TV category, especially for those who enjoy streaming, gaming, and smart home integration, but may fall short for those seeking top-tier refresh rates and audio performance.

The INSIGNIA 40" Class F40 Series Fire TV offers a solid 1080p Full HD resolution, which is great for clear and sharp picture quality on a 40-inch screen, making it suitable for everyday TV watching and casual gaming. It runs on the Fire TV smart platform, giving you access to popular streaming services like Netflix, Prime Video, and Disney+, all navigable with the convenient Alexa Voice Remote for easy voice commands. The TV has a standard 60 Hz refresh rate, which works fine for most shows and movies but might not be ideal for fast-paced gaming or sports where smoother motion is preferred. While it supports DTS Virtual-X sound technology for an immersive audio experience, the built-in speakers can still feel a bit limited compared to separate sound systems.

Connectivity options are versatile, including 2 HDMI ports, USB, composite inputs, and Wi-Fi, letting you hook up various devices like game consoles or Blu-ray players. It also includes HDMI ARC for simpler connection to soundbars. The TV doesn’t include HDR support, which means colors and contrast might not be as vibrant as models that do, especially in darker or high-contrast scenes. The LED display should provide decent viewing angles for a typical living room setup, though it may not be as wide as premium screens.

Design-wise, it’s compact and wall-mountable, fitting well into smaller spaces without feeling bulky. Parental controls are a useful addition for families to manage content easily. This TV is a good choice if you want a user-friendly smart TV with full HD picture and Alexa integration at an affordable price, but it may fall short if you’re looking for the latest high-end picture features like 4K or HDR.