Is there a reason it's not possible to use tablet keyboard cases across brands?

Question

Case:

I've got a tablet from brand XyZ . I want to use a physical tablet keyboard case for it. This is a device which combines a tablet case with a built-in physical keyboard. The only tablet keyboard case which meets my desired specs is from another brand, aBc . It basically turns the tablet into a laptop, literally, so no need for a table or flat surface. It has a track/touchpad and a backlit. For reasons only known to them, XyZ doesn't make that type of tablet keyboard case, for their ówn tablets.

They both use blue-tooth in these devices. Now, would it be impossible to use the ABC keyboard with the XYZ tablet? NOT talking about the physical aspects like camera placement etc. Just about whether the tablet would (easily) accept input from the keyboard because they both use Blue-Tooth, which is universal ...

Question: Is there a „software-matic” issue or any other, which would prevent this? To use them together?

Perhaps the answers could range from [a] „will never ever work” to [b] „will work 100% of the time” and also, going via [c] „will only work after certain conditions are met, condition 1 is... condition 2 is.... condition 3 is.... ”

Structuring your answers like that helps me with the Asperger. Thanks for that.

PS Not written to promote either brand in any way, nor asking for recommendations.

EDIT: To make this all a little less vague, I can name the brands, if it won't result in downvotes because it'd be seen as promotion or whatever.

Answer 1

The answer is more or less like your {C} option:

Yes, you can use a keyboard from one brand with another branded tablet, provided the following conditions are met:

1. they both use Android. So, you can use a Samsung tablet with a Windows keyboard. (assuming that Windows KB uses Android)
2. if you use a Samsung keyboard with an iPad tablet according to this article: https://getnotifyr.com/connecting-your-samsung-keyboard-to-an-ipad-a-step-by-step-guide/

I haven't found the reverse of 2 to be true, the reason might be that iPad/Apple uses a different BT protocol that Samsung

And Apple uses a proprietary connector called the Smart Connector, Samsung Android tablets, on the other hand, use micro-USB or USB-C connector for keyboard connectivity.

Also, even if they both use BT iPad is probably not compatible with Android devices because they use other Bluetooth protocols

If they do work together then my life-hack would be to get a iPad KB which is slightly bigger than your tablet (for example a 25,9 cm KB with a 25,65 tablet) and then stick it to the keyboard case with Velcro)

The proof of the pudding is in the eating...

Answer 2

Yes, you should be able to use any Bleutooth keyboard.

Just as an example, Apple states:

Using a Bluetooth connection, you can use third-party devices (emphasis by me) such as wireless keyboards, headphones, speakers, car kits, game controllers, and more with iPad.

https://support.apple.com/en-gu/guide/ipad/ipad997da4cf/ipados