TOP-12 features of iOS 15 that are not available on old iPhones

Apple released on WWDC21 the latest iPhone system iOS 15 and it has many new features. Also, this update is also available for very old iPhones like iPhone 6s / 6s Plus / SE.

However, due to lack of hardware or poor performance, not all new features of iOS 15 may work on older iPhones.

Here are the top 12 iOS 15 features that won't work on older iPhones

Exclusively for iOS 15 phones with A12 bionic chip or higher

Spatial FaceTime sound. It can distinguish the voice position of the other party during a FaceTime call and a face-to-face call.
FaceTime portrait mode. You can blur the background during a FaceTime call to help the other party focus on the person

Map: interactive 3D feature and exciting pedestrian navigation. In China, this app will not be available, but the Gaode map will be
Quick image search: Similar to the scanning feature, you can highlight text and phone calls on photos, just tap on the image to extract the text and paste the search. It can also identify flowers, animals, etc. in a picture and provide search results;
New weather animation background : A variety of new weather animations can show the position of the sun, clouds, precipitation, etc.;
Local voice processing on the device. Voice recognition on iOS 15 can be performed locally on the iPhone device without establishing a network;
Keys in the Wallet app. You can add house keys, hotel keys, office keys and car keys to your mobile phone.

Exclusively for iPhone 12 series

Panoramic photos: Panoramic photos of the iPhone 12 series have better geometric distortions. This will help to better capture moving objects and reduce image noise;
Improved 5G connectivity: faster 5G connectivity, enhanced app and system experience, including support for iCloud backup and restore from iCloud backup, streaming audio and video in Apple and third-party apps, downloading higher-quality Apple TV+ content, syncing photos to iCloud, updating Apple News+ articles to read offline and download machine learning models;
5G has an advantage over WiFi: When the user's Wi-Fi network is slow, the iPhone 12 series can automatically switch to a 5G network.

Other functional limitations

Spatial sound with head tracking: AirPods Pro and AirPods Max users can enjoy a more immersive experience with Dolby Atmos. This function will work on iPhone 7 series and newer versions
Determination of walking stability: It can detect the stability of the user's walking and give an alarm in case of an accidental fall. This function will work on iPhone 8 series and newer versions

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