I am not using my Pinephone. It is in the drawer and only taking out every now and then for upgrading the system on it. However, I noticed that if in use, it goes flat within a few hours, so surely won't be able to use it as a main phone.

On the other hand, I am using the Moto G7 Power daily. I have a SIM card in it and despite I am not using it for making/receiving calls/text, I am using it for everything else. Navigating, browsing online, listening to music, chatting on Telegram, even compiling programs too.
Its battery time is excellent, easily survives 2 days with one charge.
For navigation, I use an android app (Sygic) in Waydroid and it works great.
I configured both Vanilla and Gapps Waydroid images and registered the Gapps version at Google. On there I have google play and on the Vanilla version I am using Aurora store for updating android apps. I am maninly using the Vanilla version and wrote a shell script to switch between the two flavours (Vanilla and Gapps).
In my experience with Waydroid session started, it consumes more battery than without. Without Waydroid, it loses approx 6% overnight, with Waydroid (no android apps running) it loses about double.