Does apple watch ultra has the running types such as fartlek, interval? Thanks.

Hi yuliana45,

welcome to the Apple (user-to-user) Community.

Sorry I don't know the answer, yet your question surely deserves a response.,

Perhaps someone with that experience may join the discussion once under way.

Wondering if it may help to browse through the user guide:

(Seems there can also be extra apps that will work with the Heath app etc.)

Apple Watch Ultra User Guide – Apple Support

(NB:There is a "Table of Contents" link at the top of the "Welcome" page that opens from the above link, leading to various topics, and detailed articles.)

All the best :-)

PS: There's a new article out from Apple:

Run with your Apple Watch