I use drafts as my go to capture tool on my Macs, Watch, iPhone and iPad
The drafts watch app has a complication that looks like a microphone. tapping it begins recording directly for as long as you care to speak.
The current release requires an additional tap, but Greg Pierce is working on a solution to that.
I use a combination of Hey Siri remind me and drafts capture.
Drafts is useful for me because it houses a kind of mind sweep and incubate processing center. I can send the item anywhere: to email, to a reminder list, archive it in Drafts, tag in drafts as incubate in various categories (essentially creating multiple incubates by category).
Drafts has integration with about everything, including Todoist. It has full coverage of the Apple ecosystem
Watch Parts
Hope this helps
Clayton