S21Ultra running arm bag/pouch

[Frankiemop]

Does anyone know the best running armband pouch/bag that fits a Samsung s21 ultra? I'm struggling and any help is appreciated. 

I need it to hold my car keys too thank you.

[ChrisM]

Hi @Frankiemop 

Did you manage to get sorted out with something in the end?

[Frankiemop]

No. I still can't find a suitable one and was waiting for someone to comment on here.