Yes, 30 Mbps is enough for Smart TV. While you are considering purchasing a Smart TV here are a few items to bear in mind.
Internet Connection: A stable and fast internet connection is essential for streaming content on a Smart TV, especially for high-definition or 4K content. Streaming in 4K requires 15-25 Mbps of speed depending on the platform you are using. For example, Netflix and Disney+ recommend at least 25 Mbps for streaming in 4K while Hulu recommends at least 16 Mbps for 4K streaming. You don’t have to stream in 4K though; plenty of content looks good in Ultra HD or even HD for some TV shows. Streaming in HD or SD would leave more bandwidth available for other devices on your network.
User Interface: Each Smart TV brand has its own user interface. Select one that you find comfortable and use.
Device Compatibility: Not all Smart TVs support all streaming services or apps. Before purchasing, check the brand and model compatibility with your preferred streaming services.
WiFi: Most smart TVs come with built-in WiFi connectivity so you won’t need a separate router to watch the TV. You’ll connect the TV to the internet via an ethernet cable or wirelessly. The cable is preferred for a better connection. When setting up your smart TV you can connect it to your home wireless network, or you can add it to your network via the WiFi router settings. If your WiFi signal is weak try putting your router and TV close to one another.
Streaming Apps: Smart TVs come with built-in apps like Netflix, Amazon Prime, Hulu, and more. Ensure these apps are updated regularly for the best performance.
Subscription Services: While some apps offer free content, many require a subscription or pay-per-view fee.
Privacy Concerns: Depending on the manufacturer some Smart TVs have a microphone installed for Voice Recognition and a camera installed for gathering data on your viewing habits. You can disable either the camera, or the microphone, or both in the Settings menu but you may have to go several layers down to find those options.
Regular Updates: Like smartphones and computers, Smart TVs need regular software updates to fix bugs and improve performance.
External Devices: If your Smart TV doesn't support a particular service or app, you can use external streaming devices like Roku, Amazon Fire Stick, or Google Chromecast to access the content.
Resolution: Ensure your internet speed matches the resolution you want to watch in. For example, 4K streaming requires faster speeds than HD.
Connectivity: Apart from Wi-Fi, check other connectivity options like HDMI, USB ports, and Bluetooth, especially if you plan to connect other devices like soundbars, gaming consoles, or external storage.
