is android 9 pie or android 10 better for battery life?

[nutria.1]

well, title says it all, what's the best for battery life?
EDIT: i have the exynos version of the phone

sorry if i asked it in a not polite way but english is not even my first language and i'm new on this forum

 

[blackhawk]

Rule #1: If you're OS is fast, stable and fulfilling its mission, let it be.
I would leave it on Pie. More functional than 10.