Micro SD card works fine for a few months, then stops saving and erases files and shows error code on my PC

My cams (WYZE CAM v2) are set to record for motion and sound with detection zones and sound on. My cams are telling me I need SD cards. If I’m recording motion with sound on, how many days worth of storage will a 32GB card give me? 64GB? 128GB? 256? What’s a good brand SD card that works good for this type of recording and will the SD cards be ready to just put in my cams right out of the box?

Why two threads?
You just posted this over: