How about those from WhatsApp forwarded photos? Which sd card is best?
SD cards are cheap, but don't skrimp here just for the sake of it.
You will hear a lot of talk about class 10 cards. The class 10 part is important but only tells you 1/2 of the story.
Most class 10 cards are U1 rated, especially cheap, large capacity ones.
These are ok, but have generally slow read and write speeds. They are NOT suitable for 4K video recording,
For best results and to maximise fluidity & speed of your device try to buy a class 10 U3 rated card. They are more expensive but importantly their read and write speeds are vastly superior and 4K video poses no issue here.
The other advice is to buy ONLY from reliable sellers. There are so many FAKE SD cards out there. They may tell you they are fast or large capacity but are simply Chinese fakes being sold under price compared to the real deal and people think they are getting a bargain price when the reality is they are not.
Online buy from Amazon supplied direct and not for a marketplace seller or from EBay.