Samsung Evo Plus U3 128GB Class 10 Micro SD card works for M10. Tried for 2 days works fine. Firmware version should be about Jun 2017. 3min loop cycle recording.
Sjcam official, please improve your battery. Sjcam is not suitable to be used as a dash cam because the battery will be swollen after 1 to 2 months and stuck firmly inside M10 and very very hard to take out and the screen is like curved out due to swollen battery. It may be swollen due to the heat from the car or the heat due to powered on for many hours. I drive 8 hours a day. If you have a dash cam mode and your battery does not support it, it is useless. Battery must stand heat and not swollen. I still do not know how to take out the swollen battery, fear of battery exploding or damaging the M10 when pulling out.
Before using the 128 card you must format it to fat32 first, I use this free software
Guide
https://www.easeus.com/partition-master/best-fat32-format-tool.html
Software
https://www.easeus.com/partition-manager/epm-free.html