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Phone	Siemens A56 / A56i	ZTE Solar	Samsung SGH-X640	Samsung SGH-D900 / Black Carbon	HTC One S
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.5" diag. 16 : 9	?	?	4.3" diag. 16 : 9
Display Resolution & Type	101 x 64 pixels	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	540 x 960 pixels (~256 ppi) AMOLED
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	700 mAh	2,070 mAh	800 mAh	800 mAh	1,650 mAh
Processor	?	1.2 GHz Qualcomm Snapdragon 200 MSM8625	?	?	1.5 GHz Qualcomm Snapdragon S4 Plus MSM8260A
RAM	?	768 MB	?	?	1 GB
Storage	? raw hardware	4 GB	? raw hardware	? raw hardware	16 GB
Main Camera	-	5 megapixel	Yes	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	WVGA / 480p	-	?	1080p HD
Front Camera	-	-	-	-	Yes
Weight	3 oz (85g)	5.54 oz (157g)	3 oz (85g)	3.28 oz (93g)	4.2 oz (119g)
Dimensions	4" x 1.7" x 0.8" (102 x 43 x 20.3 mm)	5.24" x 2.6" x 0.39" (133 x 66 x 9.9 mm)	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	4.07" x 2.01" x 0.51" (103 x 51 x 13 mm)	5.15" x 2.56" x 0.31" (131 x 65 x 7.9 mm)
Form Factor	Slab	Slab	Clamshell	Slide	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	Android
Network Bands	GSM: 850, 1900	WCDMA: 2, 5 GSM: 850, 1900	GSM: 900, 1800, 1900	GSM: 850, 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *
Data Technology	-	HSPA 7.2	GPRS	EDGE	HSPA+ 42
Features
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	-	-	n/a
Accessibility
Adjustable Text Size	-	n/a	-	-	n/a
Hearing Aid Compatible	-	Yes	-	-	Yes
Multiple Languages	-	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	-	Yes
Alerts
Ringer Profiles	Yes	-	-	-	-
Connectivity
Bluetooth	-	Yes Classic Audio	-	Yes Classic Audio	Yes Classic Audio
Mobile Hotspot	-	n/a	-	-	n/a
USB	-	Yes Micro-USB	-	Yes	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	Yes	Yes	n/a
Ringer ID	Yes	n/a	Yes	Yes	n/a
Voice Dialing	-	n/a	-	-	n/a
Customization
Changeable Body Plates	Yes	-	-	-	-
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	Yes	n/a
Real-Music Ringers	-	n/a	-	Yes	n/a
Data & Network
Data Tethering	-	n/a	-	Yes	n/a
WAP / Web Browser	Yes	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	Yes	n/a
Side Keys	-	Yes	Yes	Yes	Yes
Touch Screen	-	Yes	-	-	Yes
Memory
Memory Card Slot	-	Yes	-	Yes	-
Messaging
Email Client	-	n/a	-	Yes	n/a
EMS / Picture Messaging	Yes	n/a	Yes	Yes	n/a
Instant Messaging	-	n/a	-	-	n/a
MMS	-	n/a	Yes	Yes	n/a
Text Messaging Templates	-	n/a	Yes	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	-	Yes	n/a
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	-	-	-	Yes	Yes
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	-	n/a	Yes	Yes	n/a
To-Do List	-	n/a	Yes	Yes	n/a
Voice Memo	-	n/a	Yes	Yes	n/a
Software
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	-	n/a	Yes	Yes	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	-	n/a	Yes	-	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	Siemens A56 / A56i	ZTE Solar	Samsung SGH-X640	Samsung SGH-D900 / Black Carbon	HTC One S
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Siemens A56 / A56i	ZTE Solar	Samsung SGH-X640	Samsung SGH-D900 / Black Carbon	HTC One S