Yes, the DJI Osmo Pocket 4 is compatible with the SanDisk Extreme microSDXC UHS-I 128GB.
DJI Osmo Pocket 4 has a microSD slot. SanDisk Extreme microSDXC UHS-I 128GB fits directly with no adapter. Inference rule: all cards on DJI's own recommended list for Pocket 4 are rated U3 A2 V30; SanDisk Extreme 128GB is independently rated V30/U3 at 130 MB/s write speed, which clears that same floor. Not named on DJI's recommended list, but specification match is clear.
“Supported SD Cards microSD (up to 1 TB) Recommended microSD Cards Recommended models: Lexar Silver Plus 64GB U3 A2 V30 microSDXC Lexar Silver Plus 128GB U3 A2 V30 microSDXC Lexar Silver Plus 256GB U3 A2 V30 microSDXC Lexar Silver Plus 512GB U3 A2 V30 microSDXC Lexar Silver Plus 1TB U3 A2 V30 microSDXC Kingston CANVAS GO! Plus 64GB U3 A2 V30 microSDXC Kingston CANVAS GO! Plus 128GB U3 A2 V30 microSDXC”
Last verified:
Confidence: high confidence