Best Memory Cards Samsung S20, S20+, S20 Ultra

There are a few things you should know before buying a memory card for any of the Galaxy S20 series phones.

Like the previous phones, the Galaxy S20 series can take a micro SD memory card with a capacity of up to 1TB.

There are a few classes of SD memory cards now that will do different things. The main thing you need to look for is A1 and A2 cards vs. no A rating. The A rating is useful if you want to run apps off your card since it will improve the read-and-write performance of small files. However, if you’re just copying photos and videos, this won’t be important, and you won’t benefit from going with an A1 or A2 card.

Recommended SD Cards Galaxy S20, S20+, S20 Ultra

I’ll list a few of the fastest-performing memory cards that I tested in the S10+ with and without A2 specs. Since the Galaxy phones do not yet use UHS-II technology, there is no reason to buy the more expensive UHS-II cards.

The Read and Write speeds listed here come from the Galaxy S10+. If I can, I’ll retest one of the S20 phones.

I have listed 128GB cards here, but you can buy cards up to a 1TB capacity. Some people even like those 400GB Sandisk cards. The bigger cards should match a similar performance as the 128GB cards I’ve tested here, so just be sure to match the card.

Memory Card Benchmarks

I benchmarked each memory card in the Galaxy S10 using Disk Speed Test for Android to determine its read and write speeds. Here are the results.

Samsung Galaxy S20 vs. S20+ vs S20 Ultra – Phone Comparison

Since you’ll likely use the S20 additional storage for photos and videos, here are each camera’s photo/video-related specs.

Memory Cards Samsung Galaxy S20, S20+, S20 Ultra Conclusions

Expanding your storage on the Galaxy S20 line of phones shouldn’t be too complicated.

You have a maximum capacity of 1TB, and then you have to decide whether to use A2 or standard non-A cards. After using an A2 card in my S10+ for a year, I have to say that I’ve never noticed the slower transfer speeds compared to faster non-A cards, and I have peace of mind knowing that the apps that I load onto my card (if I ever do such things) perform at their maximum performance.