To consistently achieve the best results, you should use UHS-I Micro SD cards with a V30 or above speed class and exFAT format, or the shooting may stop and the footage may be damaged by the unmatched storage cards. Note: Please do not use UHS-II, UHS-III Micro SD/TF cards or memory cards larger than 1TB. These cards are not compatible and may cause your recording to fail.

In addition to the memory card available on the Insta360 Store, the following have also been tested to be compatible with X3:

Micro SD Cards	Model Number	Capacity	Speed Class
Sandisk Extreme V30 A1	SDSQXVF-032G-GN6MA	32G	V30
Sandisk Extreme Pro V30 A1	SDSQXCG-032G-GN6MA	32G	V30
Sandisk Extreme Pro V30 A1	SDSQXCG-064G-GN6MA	64G	V30
Sandisk Extreme V30 A1	SDSQXAF-128G-GN6MA	128G	V30
Sandisk Extreme V30 A2	SDSQXAF-128G-GN6MA	64G	V30
Sandisk Extreme V30 A2	SDSQXA1-256G-ZN6MA	256G	V30
Sandisk Extreme Pro V30 A2	SDSQXCZ-1T00-ZN6MA	1TB	V30
Lexar 1066x microSD UHS-I SILVER Series	LMS1066064G-BN	64G	V30
Lexar 1066x microSD UHS-I SILVER Series	LMS1066128G-BN	128G	V30
Lexar 1066x microSD UHS-I SILVER Series	LMS1066256G-BN	256G	V30