recommendations for EUC display

Hi.

I would be grateful for some help/recommendations/pro-tips/alternatives.

I've been learning how to drive an EUC (a single wheel with an electric motor), and one thing i am kinda missing is speed display. On a bike i have this on the handle, but well, EUCs have no handles. My phone app for the EUC displays the current speed, and google maps can approximately do that too using GPS, but i'm not gonna ride with a phone in my hand - it would be dangerous and quite frankly uncomfortable.

Soo.... i was wondering if there are glasses which can basically connect to the (android) phone over bluetooth or usb and serve as secondary display, so that i can put current speed widget in the right corner of my eye and be happy.

I dont need any AR or AI or camera. I just want a secondary display for my phone.

What would be a bonus:
1 the glasses would be sturdy, resistant do mechanical damage. I dont expect them to get hit even if i fall out of EUC, thats what helmet and other stuff is for, but still skiing experience tells me the more sturdy the headwear, the better for sports.
2 the glasses are shades (i have rather sensitive eyesight and i go in sunglasses practically all year)
3 they have very wide coverage and are relatively snug fit, i absolutely hate full strength light shining through between the frame and my face

To be honest, my ideal shape would probably be something closer to wide-angle skiing googles and not glasses but i'll take what i can get : D