When sending MP4 videos via standard mobile MMS, adherence to specific technical limits is critical to ensure delivery across different carriers and devices.
: Recommended video length is under 30 seconds for standard MMS messaging. Resolution & Aspect Ratio :
Using MP4 clips in messaging can significantly boost engagement compared to standard text-only SMS. MMS Messages API Guide - Vonage
: MP4 is the standard and most widely supported video format for MMS. File Size Limits :
: Keep files under 600 KB for the widest carrier support and to avoid delivery lag.
: Some platforms allow up to 20 MB if they provide transcoding services, which compress the video for mobile delivery.
is generally preferred for mobile viewing as it utilizes the full vertical screen.
