Samsung EVO+ 256GB Best top-tier
Samsung’s very-highest-of-the-high-end microSD card isn’t cheap. In fact, it’s the priciest on this list. But you’re also getting a winning combination of performance and storage capacity, with 90MB/sec write speeds and 95MB/sec reads, and an enormous 256GB of space.
That’s more than you’ll ever need in a smartphone, and the high read/write speeds will help if you’re shooting lots of 4K video on a high-end phone like the Galaxy S8 (as too will that enormous capacity.) Better still, it’s water, temperature, X-ray and magnetic proof, so you needn’t worry about it getting damaged while you’re out and about.