I have been building a device for another vertical, really old people, with a lot of similarities ( subscription base, come with a stand, used to be a samsung Galaxy tab A,webrtc video calls, etc.), its called LiNote https://linote.fr (website on french only)
Happy to talk if that might help, email me at anthony at linote dot fr.
Happy to talk if that might help, email me at anthony at linote dot fr.