You can do a lot with your iPhone. There are plenty of cool features that might not be so obvious. Kind of like finding an Easter egg.
To get the most out of your phone, you just have to know where to find them.
Your phone charges a little faster if it's in Airplane mode. Swipe up from the bottom of the screen. Tap the airplane icon on the left. Turning this feature on on when you need to charge it a little bit faster.
You can check your app history by double-tapping the iPhone's home button. A sideways scrolling list will appear on screen. This shows the last apps you used in chronological order.
Activate Siri and say "read my email." Siri will read the name of the sender, time and date, as well as the subject of the email. If you want to reply, Siri will listen to your response and send it for you.