10 Best 40 Inch Smart Tvs 2026 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 Roku Smart TV 2025 Select Series offers a solid choice for anyone looking for a 40-inch smart TV that balances ease of use with good picture and sound quality. Its 1080p Full HD resolution is clear and bright, making it ideal for bedrooms, kitchens, or smaller living rooms, though it lacks 4K resolution, which some users might prefer for sharper images. The TV runs on Roku's well-known smart platform, which is user-friendly and gives access to thousands of streaming apps, including many free channels, plus voice control compatibility with Alexa, Google Assistant, and Siri. This makes finding and enjoying content straightforward, even for those new to smart TVs.

The 60 Hz refresh rate is standard and fine for most TV watching, but might not satisfy viewers wanting smoother action for fast sports or gaming. Connectivity options are good with Wi-Fi and Bluetooth, allowing easy streaming and wireless headphone use for private listening. Sound quality is designed to emphasize clear speech and louder audio, which is a nice touch for catching dialogue without extra equipment.

The flat screen design is simple and clean, fitting well into most rooms. This Roku TV focuses on straightforward streaming, solid basic picture and sound, and smart home integration, making it a great value for casual viewers who want easy access to entertainment without complex features or ultra-high resolution.

The Samsung 40-Inch Full HD F6000 Smart TV is a solid choice if you want a reliable mid-range smart TV with good picture quality and smart features. Its 1080p resolution offers clear and sharp images, which is ideal for a 40-inch screen size—perfect for bedrooms or smaller living rooms. Thanks to HDR and Mega Contrast, you’ll notice better brightness and deeper blacks, adding more life to movies and shows. The TV runs on Samsung’s Tizen OS with One UI, an easy-to-use platform that gives quick access to popular apps and an impressive range of free channels, so you can find plenty to watch without extra subscriptions.

Connectivity-wise, it has Bluetooth, Wi-Fi, USB, HDMI, and Ethernet ports, allowing you to connect various devices smoothly. The 60 Hz refresh rate is standard for this size and category, suitable for everyday TV watching, though it might not be the best for fast-paced gaming or sports where higher refresh rates shine. Sound quality is enhanced with Samsung’s Object Tracking Sound Lite and Q Symphony compatibility, which means it delivers directional sound for a more immersive experience and works well with certain soundbars (sold separately). The slim, bezel-less design looks modern and keeps the focus on the screen.

The viewing angles are typical for LED TVs, meaning image quality can drop if you’re watching from far to the side. Also, while the built-in speakers are decent, they might not satisfy those wanting powerful audio without external speakers. Security features like Samsung Knox provide peace of mind by protecting your data and connected devices. This TV suits casual viewers who want a user-friendly smart TV with good picture and sound in a compact size, but serious gamers or cinephiles looking for 4K resolution or higher refresh rates might want to explore other options.