So about battery life:
My second day on the road was exactly the same, same usage, ended up with around 40% at the end of the day, again 10-15% less than my iPhone 11 (with 98% battery health) in the same situation with same usage. Really good imo.
But the nights are strange. I wanted to test how everything effects battery life.
First night the device lost 6% in airplane mode. But it was the first day owning it.
Second night it lost nothing in airplane mode. Charged it to 100% and it stayed there till the morning.
But today was very strange. I thought I would leave it on to try it out, stable 2-3 bar LTE reception, nothing else turned on, no BT, 5G, WLAN, background sync always off etc. Silent mode. Only received 5 notifications from my air quality station at home. But that was it. Haven't used it overnight. It lost 27%!!!! 27% for about 5 notifications with stable LTE? The battery usage doesn't show me anything. No draining in background etc. Besides Safari no high usage of battery, nothing. WTF! That never happened before. With my 11 last week it lost around 5% with same settings but fewer notifications.