Chassis Requirements for WP8.1 GDR1 revealed

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Microsoft’s OEM dev site continues to be a rich vein of information to mine regarding the next minor version of Windows Phone 8.1, GDR1.

The latest to arrive is the Chassis Requirements for handsets running the OS. Most of the features remain unchanged from earlier versions of the OS, but there are a few surprises.

One of them is that Windows Phone now supports qHD resolution (960 x 540) scaled from 720P. The OS still does not support the newer super high resolutions however, being limited to Full HD (1080p)

Also interesting is that a proximity sensor is now a hard requirement, surprising given that the Nokia Lumia 630 and 530 does not feature one.

Also unfortunate is that there does not appear to be any support yet for the newer Snapdragon 810 processors.

Microsoft has dropped performance requirements for MicroSD cards in WP8.1, and can compress the OS partition to enable more free space in 4 GB handsets.

See the full list of specs after the break.

Applications processorPhones designed for Windows Phone 8.1:
Qualcomm MSM8x10, MSM8x12, MSM8x26, MSM8926, MSM8x28, MSM8928, MSM8974 or MSM8974Pro
Phones updateable to Windows Phone 8.1:
Qualcomm MSM8260A, MSM8660A, MSM8960, MSM8230, MSM8630, MSM8930AA, MSM8930AB, MSM8227 or MSM8627
RAMLPDDR2 or LPDDR3
MemoryFlash user partition
e MMC
PowerMonitor gauge Required
Display ResolutionWVGA, FWVGA, WXGA, qHD, 720p (HD), or 1080p (FHD)
Bit depth16 bits of color per pixel minimum
Touch supportTrue multi-touch
CameraRear-facing camera Required

Forward-facing camera Optional

AudioPrimary microphone Required

Secondary microphone Optional

Dynamic noise suppression Optional

Loudspeaker Required

Earpiece Required

Wireless2/2.5G cellular radio Required

3G/4G cellular radio Required

Bluetooth Required

Wi-Fi
802.11b/g
802.11a/n

FM radio Optional

NFC Optional

A-GNSS Required

SensorsAccelerometer Required

Magnetometer Optional

Ambient light sensor Optional

Proximity sensor Required

Gyroscope Optional

NotificationsVibration mechanism Required

NLED Optional

ControlsStart Required

Back Required

Search Required

Power Required

Volume Up Required

Volume Down Required

Camera button Optional

ConnectorsMicro-USB 2.0 or 3.0 Required

Headphone/headset jack
3.5-mm stereo headset jack with 3-button detection support

Micro SD card slot Optional

One SIM slot if the phone supports a single SIM card.
Two SIM slots if the phone supports dual SIM.

Video out NA

In-box cables & accessoriesUSB sync cable Optional

Power adapter Optional

Headset Optional

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