What is difference between Smart TV and 4k?

Related questions

1. Should I get a smart TV?
2. Is 1366x768 better than 720p?
3. What is the difference between HD and FHD display?
4. Is 1366x768 full HD?
5. Is 1366x768 better than 1920x1080?
6. What is the difference between HD+ and FHD+?
7. Which TV is better HD or 4k?
8. What is the difference between FHD and 4k?
9. What is better FHD or 4k?
10. What cable do I need for 4k?

Tags

1. #resolution
2. #ultra
3. #often
4. #horizontally
5. #higher
6. #vertically
7. #referred
8. #which
9. #times
10. #hdtvs
11. #while
12. #current
13. #older
14. #pixels
15. #number