When buying a smart TV, looking only at inches and price is not enough. Also think about your room and how you will use it.
Key points:
1. Size: choose according to your seating distance. A TV that is too big for a small room can tire your eyes.
2. Resolution: Full HD can be enough at smaller sizes. At bigger sizes the difference with 4K is clearly visible.
3. Panel and brightness: if your room is bright, look for a model with good brightness.
4. Smart system and apps: check that the apps you use (like YouTube and OTT apps) work on it.
5. Sound: the built-in sound can be average. You may want to keep space for a soundbar later.
6. Ports: check HDMI, USB and Bluetooth as per your need.
7. Warranty: ask about the panel warranty separately.
Do not buy a bigger or costlier model just because of an offer. Compare prices first.