Earlier we published an article about Samsung vs TSMC made A9 chip performance test comparison, and TSMC made Apple A9 chip turned out better than Samsung. If you are not aware what chip your iPhone 6s has got, read our article about how to find my iPhone 6s has TSMC or Samsung made A9 chip.
Now we have got a video made by Austin Evans where he compares the battery life of iPhone 6s. He tested two iPhones, one of them features Samsung made A9 chip and the other features TSMC made A9 chip. TSMC has turned out more powerful in terms of battery life as well.