iOS 9 does even more to efficiently stream new updates to your device without having to first download and unpack them.The apps in iOS 9 now take advantage of Metal, making more efficient use of the CPU and GPU to deliver faster scrolling, smoother animation, and better overall performance.
Across the entire operating system, apps and key technologies have been made more efficient to trim battery usage wherever possible — so you get more battery life for the things you do every day. the new Low Power mode lets you extend your battery life even further ( 1 hour of additional time before recharging )
Six-digit passcodes – The passcodes you use on your Touch ID–enabled iPhone and iPad will now have six digits instead of four. If you use Touch ID, it’s a change you’ll hardly notice. But with one million possible combinations — instead of 10,000.
Two-factor authentication – With two-factor authentication, when you sign in from a new browser or on a new device, you’ll be prompted for a verification code. This code is automatically displayed on your other Apple devices or sent to your phone.
Immigration from Android
download the Move to iOS app to wirelessly switch from your Android device to your new iOS device. It securely transfers your contacts, message history, camera photos and videos, web bookmarks, mail accounts, calendars, wallpaper, and DRM-free songs and books
Based on the apps you commonly use and the time of day you use them, you’ll get intelligent suggestions for what you might want to do next — even before you ask
search screen is now prepopulated with contacts, apps, places nearby, and more. And it’s proactive in other places, too — making lots of little things just a little easier
Much Smarter Siri
Now Siri can search a wider range of topics for a wider range of answers. It understands what you say more accurately and delivers your results faster
PIP ( Picture in Picture )
While using FaceTime or watching a video, press the Home button and your video screen scales down to a corner of your display. Tap to open a second app, and your video continues to play — even while you use the other app. So keep watching your favorite TV show while you reply to the email that just came in
With Split View on iPad Air 2, you can go a step further and have two apps open and active at the same time
you can open a second app without leaving the one you’re in. So you can quickly browse the web, respond to a text message, or jot something down in a note, then slide that app away and get back to the one you were using before
If your car supports wireless connection to iPhone, you can use CarPlay without plugging in. CarPlay also plays audio messages, so you can hear from people in their own voices. If you use your car’s knobs to control CarPlay, you can now take full advantage of the way they tilt and spin to scroll through lists or pan around in Maps. And apps developed by car manufacturers are supported, too — so you can control more of your car’s features without ever leaving CarPlay
Apple Pay / Wallet
use Apple Pay to make purchases with your Discover card or store credit cards. you can just double-click the Home button when your iPhone is locked to access Wallet and quickly pay with Apple Pay
use public transportation with Maps as your guide. In select cities around the world, a new Transit view shows you lines and stations right on the map. When you plan a route, every step of your trip is laid out from point A to point B. And with the Nearby feature, it’s easier to see what’s around you and decide on places to shop, eat, and more
iOS 9 adds a new app to your Home screen. News conveniently collects all the stories you want to read, from top news sources, based on topics you’re most interested in — so you no longer need to move from app to app to stay informed.
- Turn list into checklist
- Picture Note
Source : Apple