Pseudo scientific test - Camera
iPhone 6 plus 64GB with only stock apps loaded. Nothing from the store. Camera set to default and removed each time from the Task Manager.
From icon press to camera open and ready:
2.7, 2.8, 2.9, 2.7, 2.9
Call it 3 seconds.
iPhone 6S Plus 64GB - same conditions
1.2, 1.2, 1.1, 1.3, 1.2
Call it a longish second (scientific term: longish)
Note 5 64GB - clean task list with widgets running (clock, weather, stock ticker, calendar)
0.8, 0.9, 0.8, 0.8, 0.8
Call it a short second (another scientific term)
6+ camera takes way to long ......