Amazon.com: Digi Chip 128GB Micro-SD Memory Card Class 10 UHS-1 for Motorola Moto X4, Moto G5s, Moto G5s Plus & Motorola E4 Mobile Phones : Electronics
Memory Cards for Motorola moto X4
Motorola Moto X (4th Generation) 4G LTE with 32GB Memory Cell Phone (Unlocked) Super Black PA8S0006US - Best Buy
Memory Cards for Motorola moto X4
Amazon.com: SanDisk 128GB Ultra UHS-I Class 10 Micro SDXC Memory Card works with Motorola Moto X4, G5S Plus, G5S, Z2 Force Edition, E4 Plus, Z2 Play, G5 Plus Phones with Everything but
Motorola Moto X4 Specs & Speed
Motorola Moto X4 - Specifications
January 2020 update seems to have broken my SD card functionality : r/MotoX4