Which wearable for voice recorder app?

[ultrarunner2020]

Hey guys;
I have never owned a wearable, so this is new territory for me.
I own a Moto G7 Optimo Maxx (Tracfone).
I am looking for a wearable that will work perfectly with my phone, and allow the installation of a voice recorder app.

I would like the watch to be light enough to wear to bed, as I like to record my thoughts before falling asleep and my dreams when I awake from them.
I have been using a stand-alone Olympus voice recorder, which works pretty well, but it is always getting 'lost' somewhere on my bed while I sleep.
I would want the voice recorder app to have vox capability, so I don't have to sort through 8 hours of audio to find what interests me.

Can you recommend something for me?
Thanks
Ultrarunner