When it comes to selecting a television for small rooms and compact spaces, 40-inch models stand out due to their appropriate size and dimensions. Moreover, these televisions often incorporate advanced audiovisual (AV) technology that surpasses what is typically found in 32-inch TVs. As a result, they offer users an enhanced multimedia and gaming experience. For instance, the Mi 5A television is equipped with an Android TV interface, providing users with a seamless and user-friendly operating system. Additionally, it features Auto Low Latency Mode (ALLM), which is particularly beneficial for gamers as it minimizes input lag, ensuring a smoother and more responsive gaming experience. If you're seeking a valuable option with powerful audio capabilities and HDR10+ support, the Acer P-series TV is worth considering. It offers powerful speakers and HDR10+ technology for enhancing the content consumption experience. However, it's important to note that while most 40-inch TVs offer these advanced features, they are primarily designed for content consumption and may not provide a premium viewing experience. If you desire a more high-end experience in a compact form factor, it may be worth exploring 42-inch OLED TVs that offer superior contrast levels and cutting-edge connectivity options. Let’s now get to our list of best 40-inch smart TVs that you can choose from.