Battery life
Samsung Galaxy S6: 2550 mAh non-removable battery, wireless charging
iPhone 6: 1810 mAh non-removable battery
You can easily get a normal working day (8am to 7pm) out of them both. But you can notice significant drop offs when you're streaming music, watching video or browsing the web for 20-30 minutes.
Samsung offers a very useful power saving mode that restricts the battery draining features. Thanks to Samsung's rapid charging technology, it takes an hour and twenty minutes to go from 0 per cent-100 while the iPhone takes around 3 to 3.5 hours. Samsung additionally offers wireless charging, which Apple is yet to embrace.