Microsoft Sirius vs Amazon Kindle Fire HDX 8.9

General Info

Manufacturer
Microsoft	Amazon
Announced
Not officially announced yet	September 2013
Status
Rumored	Available - November 2013
Colors
Dark Red	Black
Form Factor
Candybar	Candybar
Dimension
8.9 mm thickness (0.35 in thickness)	231 x 158 x 7.8 mm (9.09 x 6.22 x 0.31 in)
Weight
590 g (20.81 oz)	374 g/ 384 g (13.19 oz/ 13.55 oz)
2G Network
GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO
3G Network
HSDPA 850 / 900 / 1900 / 2100	HSDPA
4G Network
LTE	LTE
Messaging
SMS, MMS, Push Mail, EMail, IM	, Push Mail, EMail, IM

OS
Microsoft Windows RT	Android OS, v4.x (Jelly Bean - customized)
Processor
Quad-core 2.3 GHz Krait 400, Qualcomm Snapdragon 800 [Similar]	Quad-core 2.2 GHz Krait 400, Qualcomm Snapdragon 800 [Similar]
GPU
-	Adreno 330 [Similar]
RAM
N/A	2 GB [Browse Similar]
Internal Memory
32/64 GB	16/32/64 GB
External Memory
-	No

Type
IPS LCD capacitive touchscreen	IPS LCD capacitive touchscreen
Colors
16M colors	16M colors
Size
10.1 inches [Similar]	8.9 inches [Similar]
Resolution
1080 x 1920 pixels (218 ppi) [Similar]	2560 x 1600 pixels (339 ppi)
Screen-to-Body Ratio
-	63.00%
Multi-Touch

Rear Camera
6.7 MP, 3088 x 1744 pixels [Similar]	8 MP, 3264 x 2448 pixels [Similar]
Flash
Carl Zeiss optics	LED flash
Features
Geo-tagging	Auto focus, Geo-tagging, Touch Focus, Image Stabilization
Video
Yes	Yes
Front Camera
Yes [Similar]	Yes, 720p [Similar]

GPRS
Yes	Yes
Edge
Yes	Yes
3G
HSPA+, LTE	HSPA+, LTE
Bluetooth
Yes, v4.0 with A2DP	Yes
Wi-Fi
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, dual-band	Wi-Fi 802.11 a/b/g/n, dual-band
USB
Yes, USB v2.0, USB Host support	Yes, microUSB v2.0
GPS
Yes, with A-GPS support	Yes, with A-GPS support (4G model)
Browser
HTML5	HTML5 (Amazon Silk)