why oppo vivo are expensive than mi or realme

5:03

9:51

12:02

12:02

6:57

8:24

5:04

6:00

12:07

7:09

4:54

6:34

2:44

4:54

4:16

16:32

5:28

4:55

4:55

5:50

2:20

5:45

8:16

9:27

9:42

10:04

4:43

4:06

5:32

8:29

7:29

7:35

5:52

7:35

5:07

5:25

2:06

4:17

6:39

9:37