Stumbled across this post whilst hunting for info about my Xperia 5. I've just exchanged it with the retailer for poor battery capacity at new. Both the sony service menu and "accubattery" app estimated 2900 ish, battery in the X5 should be 3140. Seems like there may be some sub-par batteries in these 2019 devices 😞 shame as the qnovo tech was one of the key selling points for me having had a Samsung battery fall to ~60% capacity in 18 months!
