The official Apple assistance sent me a new iPhone SE 2020 unit. I received it yesterday.
I setup it as a new unit, I lost all 4 data weeks of runs recorded with my Apple Watch gen. 3, thinking some random errors in old watch or iPhone backup.
This morning I had a new run with my new unit using Watch and Nike run on iPhone.
The battery was at 98%, when I back home after 75 min. the battery was at 65% and overheated.
When is overheated and it's only in idle battery drain another 5-6% before stabilizing.
I had a chat with assistance, a technician call me and we have did remote test.
Test is ok, we agreed to wait until next week.
I didn't have this issues with my previous iPhone SE 1Gen.
I had fast drain battery only with very cold weather or very heavy usage
I am using it very little because after these experiences I am really negative: everything drain battery and overheated after a simply old call too.
I bought this phone with economic sacrifice because my old one broke and I need a new iPhone for iCloud,
but I'm truly sorry to have spent 499 € for this unit and no less in a old refurbished unit.
The authorized dealer of my country does not provide for any refund and I'm very tired.