Mavlink message ID with most accurate relative ALT?

[Aticof (Atico)]

Which is the Mavlink message ID> with most accurate relative ALT?

ID>33 ?

[Mustafa_Gokce]

https://mavlink.io/en/messages/common.html#GLOBAL_POSITION_INT

[Aticof (Atico)]

Thanks, Then ID>33 OK