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Phone	Samsung SGH-X640	Samsung SCH-A790 / SCH-A795 / IP-A790	Sony Ericsson T68i	Nokia Lumia 900	Huawei W1
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	?	4.3" diag. 5 : 3	4" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	101 x 80 pixels LCD (STN)	480 x 800 pixels (~217 ppi) AMOLED	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	800 mAh	?	700 mAh	1,830 mAh	1,950 mAh
Processor	?	?	?	1.4 GHz Qualcomm S2 APQ8055	1.2 GHz Qualcomm Snapdragon 400 MSM8230
RAM	?	?	?	512 MB	512 MB
Storage	? raw hardware	? raw hardware	? raw hardware	16 GB	4 GB
Main Camera	Yes	Yes	-	8 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	-	720p HD	720p HD
Front Camera	-	-	-	1 megapixel	Yes
Weight	3 oz (85g)	4.2 oz (119g)	2.96 oz (84g)	5.6 oz (159g)	4.41 oz (125g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.4" x 2" x 1" (86 x 51 x 25.4 mm)	3.94" x 1.89" x 0.79" (100 x 48 x 20.1 mm)	5.03" x 2.7" x 0.45" (128 x 69 x 11.4 mm)	4.84" x 2.5" x 0.41" (123 x 64 x 10.4 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	(proprietary)	Windows	Windows
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900 GSM: 900, 1800	GSM: 900, 1800, 1900	4G LTE: 4, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 *	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	GPRS	1xRTT	GPRS	LTE (Cat 3)	HSPA+ 21
Features
GPS / Location	-	Yes	-	n/a	n/a
Accessibility
Adjustable Text Size	-	-	-	n/a	n/a
Hearing Aid Compatible	-	-	-	Yes M3, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)
Multiple Languages	Yes	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	-	Yes	-	Yes	-
Alerts
Extra Display	-	Yes	-	-	-
Ringer Profiles	-	Yes	Yes	-	-
Connectivity
Bluetooth	-	-	Yes	Yes	Yes
Infrared (IR)	-	-	Yes	-	-
Mobile Hotspot	-	-	-	n/a	n/a
USB	-	-	-	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	-	Yes	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	Yes	Yes	n/a	n/a
Ringer ID	Yes	-	Yes	n/a	n/a
Voice Dialing	-	Yes	Yes	n/a	n/a
Customization
Custom Graphics	Yes	Yes	Yes	n/a	n/a
Custom Ringtones	Yes	Yes	Yes	n/a	n/a
Real-Music Ringers	-	-	-	n/a	n/a
Data & Network
Data Tethering	-	Yes	Yes	n/a	n/a
WAP / Web Browser	Yes	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	-	-	-	Yes
Messaging
Email Client	-	-	Yes	n/a	n/a
EMS / Picture Messaging	Yes	-	Yes	n/a	n/a
Instant Messaging	-	-	-	n/a	n/a
MMS	Yes	Yes	Yes	n/a	n/a
Text Messaging Templates	Yes	Yes	Yes	n/a	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	-	-	-	n/a	n/a
Productivity
Alarm	Yes	Yes	Yes	n/a	n/a
Calculator	Yes	Yes	Yes	n/a	n/a
Calendar	Yes	Yes	Yes	n/a	n/a
To-Do List	Yes	Yes	Yes	n/a	n/a
Voice Memo	Yes	Yes	Yes	n/a	n/a
Software
BREW	-	Yes	-	n/a	n/a
Games	Yes	Yes	Yes	n/a	n/a
Java (J2ME)	Yes	-	-	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	Yes	-	n/a	n/a
Speaker Phone	Yes	-	-	Yes	Yes
	Samsung SGH-X640	Samsung SCH-A790 / SCH-A795 / IP-A790	Sony Ericsson T68i	Nokia Lumia 900	Huawei W1
	X >	< X >	< X >	< X >	< X

NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Samsung SGH-X640	Samsung SCH-A790 / SCH-A795 / IP-A790	Sony Ericsson T68i	Nokia Lumia 900	Huawei W1