I own 2 phones.
Phone 1 is my emergency phone. It is located in the entrance hall. Whenever I leave, I think briefly about whether I should take it with me, e.g. if I drive by car and there could be some sort of emergency. When I stay in town, I rarely take it with me. It is a used Sony Xperia Z1 Compact back from 2014 with Lineage OS, no Google apps and most other apps deleted. As I said, it just exists for emergencies, so it has a SIM card to do some emergency calls. Because it is mostly off, I only have to charge it once every 2-3 weeks.
Phone 2 is my "leisure phone". It is located in the laundry room. Whenever I feel the urge to message someone, I have to go downstairs. I do my tasks, e.g. checking my messages and then I leave it alone. It is an old Motorola phone from 2015 with Lineage OS, no Google apps. I use the Signal messenger and the default Lineage OS apps for calendar and contacts. It has no SIM card. It is fairly slow, but that's a feature, not a bug: It is too slow to be enjoyable, so I just do my messaging stuff and leave it alone. If I need to sync some data (ideas, images), I use syncthing in my home wifi.
So all in all, I own my phones, they don't own me.
Why do I use two phones instead of one?
- Phone 1 is very fast, so this would increase the probability that I would do some addictive stuff
- Phone 1 doesn't have a bumper case, so I don't want to increase the probability to break it
- Phone 2 has a broken SIM card reader, so I can't use it for calling
- I don't want to have a single point of failure (losing the phone)