10 Best 40 Inch Smart Tvs 2025 in the United States

The Amazon Fire TV 40" 2-Series is a solid choice for anyone seeking a compact smart TV with easy access to a large variety of streaming services. With a Full HD resolution and support for HDR, it delivers vibrant picture quality that enhances your viewing experience. The inclusion of the Fire TV platform allows you to stream from popular services like Netflix, Prime Video, and Disney+, making it versatile for entertainment needs.

One of the standout features is the Alexa Voice Remote, making it incredibly user-friendly; you can easily navigate and control smart home devices with voice commands. The TV also supports multiple connectivity options, with two HDMI ports for devices like gaming consoles and an Ethernet port for reliable internet access.

The refresh rate of 60 Hz might not be ideal for fast-paced gaming or sports, as it may lead to motion blur. Additionally, while the sound quality is decent with Dolby Digital support, the built-in 16W speakers may not provide the immersive audio experience that some users look for. For enhanced audio, you'll want to connect a soundbar or external speakers. In terms of design, the TV is lightweight and can be easily wall-mounted or set up using the included stand. Its sleek black plastic finish might not appeal to everyone. This TV is suited for casual viewers who enjoy streaming content and want a user-friendly interface. If your focus is on high-end gaming or superior audio quality, you might want to consider options in a higher price range.

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.