Besides, is oppo a good brand?

So it is safe to consider them as online brands. These brands provide really good phones with strong specifications and the latest chipsets at the most basic price. They do not spend too much money on marketing and advertisements. On the other hand, we have players like Oppo & Vivo.

Also, is Oppo and Vivo same? These two companies are from the same parent company. Oppo, Vivo and OnePlus are owned by the same company BBK Electronics from China.

In respect to this, is Vivo a good brand?

UPDATE: THESE BRANDS OPPO AND VIVO ARE MAKING SOME GOOD PHONES NOW A DAYS THOUGH THEY STILL MARKET PHONES AS BEST SELFIE PHONES. Realme a sub brand of OPPO is quite good and VIVO is also launching some good phones in premium mid range segment.

Is Oppo better than Samsung?

If you look at purely the face value of the brand, then Samsung would be a better choice. If you look at it from after sales service/support, Samsung is a better choice. If you look at getting slightly better specifications for the price you pay, OPPO is better.