Use the Lexar Professional 1066x micro SDXC, UHS-1 class 10, Read speed:160M/s, Write speed: 120M/s, 128GB. Now to prove why, I want you to perform a little test.
You can do this test in your home, on your kitchen table… You do not need to be flying, just have everything turned on as if you were going to fly. Point the drone at a light sauce so you do not get a low-light warning.
You will be changing between the two MicroSD Cards, remember to turn your drone OFF between swapping the cards, DO NOT leave the drone on when you are changing the cards… This can damage a MicroSD Card!!!
With the “Slow” EVO Plus MicroSD Card inserted in the Drone, shoot several 4MB still photos. When you do, watch the White Dot that indicates you are shooting photos. There is a “Write Indicator” a circle or ring that races around the White Dot that shows the photo is being written to the MicroSD card. Pay particular note to how long it takes to write the data.
Now Turn Off the drone, and swap out the card and insert the Lexar and perform the same test, notice how much quicker the Ring races around the White Dot. It’s writing the data that much quicker.
Now leave the Lexar in the drone. Put the EVO in your phone or tablet to store your old songs, photos, etc…
My experience with the slower MicroSD I used while I wanted for the return of my SanDisk, I noticed that my 4K videos “stuttered” as the camera fed the data faster than the card could write it. And if you are shooting a lot of photos in sequence, you cannot shoot a second photo until the previously one gets written…
Finally, do not use your 128GB card as a storage device, download those photos, otherwise; you will wind up with thousands of uncontrolled data files that you will never find since the file names are based on date and time…
And I do not recommend removing that MicroSD Card from the drone and inserting it into your computer/laptop, use the quick transfer to put the files onto your device and then transfer the files. I cannot prove it, but I’ve read too many problems with folks trying to use the card outside the drone…