For the following tests I used our standard battery benchmark methodology, which involves running the smartphone from a full charge to no charge where possible. (techspot.com)
We always refuse to give battery benchmarks because it's impossible to do properly. (pocket-lint.com)
There's no indication the two chips perform differently when it comes to speed, but battery benchmark tests on iPhones with TSMC chips and iPhones with Samsung chips initially suggested there could be some significant battery life differences between the two devices, with the TSMC iPhone 6s lasting approximately two hours longer than the Samsung iPhone 6s. (macrumors.com)