Firstly, we have HDTVs which use a set-top box or a cable connection to work. Now add internet connectivity and some built-in apps and the result is a Smart TV.
Much like smartphones, Smart TVs come with support for Wi-Fi, Bluetooth and generally run on a Linux-based software (like webOS, Tizen, HomeOS).
They also come with pre-installed apps and may even support digital assistants.
And, what is an Android TV?
Simply put, an Android TV is a Smart TV that runs Google's Android operating system.
An Android TV comes with a Google Play Store that brings support for thousands of apps along with built-in Google Assistant which can be used to discover content, control home devices and more.
There's also built-in Chromecast which helps to cast content from your smartphone straight to the TV.
So, which one should you buy?
Keeping aside factors like display quality, sound, and other hardware-related stuff, we'd suggest an Android TV for three main reasons.
Firstly, you get way more apps on the Google Play Store than offered by any Smart TV.
Secondly, built-in Google Assistant and Chromecast will enhance your TV viewing experience.
And finally, Android TV gets timely updates which bring improvements and new features.
Stuck with an HDTV? Get a Chromecast
However, if you're not willing to invest in a new TV, you can convert your dumb HDTV into a smart one using the Google Chromecast 3. The device brings support for over 800 apps, upto 1080p streaming, Google Assistant as well as casting feature.