I think this phone will be the new battery champion in 5.5 inch display phone. IMO, it's better than rival phone like Samsung Galaxy J7 Pro in almost every way (You are free to disagree with me). J7 pro has Mali-T830MP2 gpu which is a joke in this price range.
XA1 Ultra has 6 inch screen and 2700mAh battery yet sony is able to bring a respectable battery life out of it.
Gsmarena rating - 68 h
Phonearena rating - 10h 32 min (rating -Excellent)
So with smaller 5.5 inch screen and huge 3430mAh they should get atleast 90-100 h rating in gsmarena and 13h rating in Phonearena.
