Battery life is always a concern for those updating to new versions of iOS. With that in mind, today we get a detailed comparison of battery life across the most recent versions of iOS including iOS 8.0.2, 8.2 Beta 2, and 8.3 Beta 2. A reader sent in the video below using a brand new out of the box 16GB iPhone 5 and Geekbench to record the results.

While the results are a close call, the latest iOS 8.3 Beta 2 seems to be underperforming in battery life slightly compared to other versions in the test. iOS 8.1.3 clocked the highest score, as pictured above.

Earlier this week we had the debate over whether or not you’d like to see Apple prioritize battery life over thickness in future iPhones. The results: Around 60% of participants said Apple should thicken the next iPhone to improve battery life.

[youtube=https://www.youtube.com/watch?v=Q6-dX7OWHiU&feature=youtu.be]