Illustrate alcune delle novità di Windows Phone 8.1 GDR1

- Support for 1280 x 800 WXGA resolution
- Diagonal screen sizes of 6.01" to 7" are now supported for the 1280 x 768 WXGA resolution
- 540 x 960 native qHD resolution is now supported in addition to the ability to scale from HD or WVGA resolution to qHD
- Diagonal screen sizes up to 6" and on phones that use the MSM8x12 applications processor now support 540 x 960 qHD resolution
- Dual SIM – C + G radio type is now supported for dual SIM phones
- Bluetooth – PAN (personal area network) 1.0 profile, aptX codec support for A2DP, and browsing support for AVRCP are now supported
- Support for a Store live tile when the tile is medium-sized
- The size of the Store tile has been standardized for all layouts and some tiles have changed places on the Start screen.
- Support for folders.
- Enable a phone cover app to launch when the phone cover is closed and specify the default setting for the lock screen's auto unlock setting.
- Cortana – Add a phone book entry for Cortana to allow users to initiate speech from a car that doesn't have support for activating speech on the phone that is connected over Bluetooth.
- Network Time Protocol support – Automatically set the time, using an NTP client, in a Windows Phone device that doesn't support NITZ or when cellular data is not available.
- Voice over LTE (VoLTE) support
- OEMs can implement a custom lock screen
- OEMs can preload the Files app
- Added a note that all Wi-Fi Sense settings must be on unless Microsoft executive approval has been granted for specific mobile operator requests.