I wish to buy an Android One device and install only apps from F-Droid. I don't own a Google account and don't wish to register. I don't wish to install LineageOS or other alternative firmware.
Is it possible to use Android One device without a Google account?
What are the restrictions (without Google account) except that i can't use Google cloud services and Play Store? For both there are alternatives.
You need to register with Google
I had bought two Android MiA1 one phones , one for me and one for my son, a couple of years ago. I registered with Google account on my phone and got security updates and Android version update. On my son's phone , there were no updates of any kind till he came a few days later and activated Google sign in. It was connected to data (his spare SIM)
Android One wiki says the device needs to have Google Services intact. It doesn't mention Play Store explicitly but logically if the core service is missing, it will not work.
Robert, in comments pointed out another important point- of security updates being pushed through Play Store, and likely these won't be available without registering.
USP of Android one is low cost devices with timely updates, If you can't get updates and you don't want to install a custom ROM, your plan isn't going to help
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