iPad Pro 10.5 - Which iOS version?

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Hello - got a 10.5 with iOS 11.3.1. Is it worth upgrading to 12.4? Conscious of battery life slowing down. Unfortunately no real benchmarks online.

 

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For better battery life.

 

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Indeed. Well worth upgrading.

https://arstechnica.com/gadgets/2018/09/ios-12-thoroughly-reviewed/5/#h7

Not the same hardware as the OP, but performance will be as good as iOS 11.x, if not better.

Interesting. Upgraded to 12.4.1 and definitely feels faster.