Help connect libre1, Miaomiao1, Garmin and iPhone 11

I’m day 2 of this and need some tech help connecting the bits together.

⁃ Libre 1 (U.K. NHS)
-Just ordered Miaomiao 1
-have a iPhone 11
-And a Garmin Fenix6 watch

I want all these things to talk to each other AND to be able to it with snd without phone/internet reception.

And I’d love to be able to get CGM live as well as my heart rate snd oxygen sats in to my run/cycle/swim efforts.

And the CGM/HR/O2sats date into the analog watch face. (Dyslexic.)

I’d love a hypo alarm setting.

And to save this data so I can share it with endo.

And I’m clumsy to need a sticking plaster thingy to make it stay in place.

(I’m a Adrenal patient whose has drug induced DM but also gets hypos from not taking enough replacement steroids especially when I over do exercise and get ambushed by work stress or for no reason at all and day/night.)