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Specifications
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Phone	ZTE Speed	Samsung SCH-A570	Nokia Lumia 900	Huawei W1	Samsung PM-A840
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. 5 : 3	4" diag. 5 : 3	?
Display Resolution & Type	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	480 x 800 pixels (~217 ppi) AMOLED	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)
Display Refresh	60 Hz	?	?	?	?
Battery	2,000 mAh	?	1,830 mAh	1,950 mAh	?
Processor	1.2 GHz Qualcomm Snapdragon 410 MSM8916	?	1.4 GHz Qualcomm S2 APQ8055	1.2 GHz Qualcomm Snapdragon 400 MSM8230	?
RAM	1 GB	?	512 MB	512 MB	?
Storage	8 GB	? raw hardware	16 GB	4 GB	? raw hardware
Main Camera	5 megapixel	-	8 megapixel	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	720p HD	720p HD	-
Front Camera	2 megapixel	-	1 megapixel	Yes	-
Weight	4.8 oz (136g)	3.6 oz (102g)	5.6 oz (159g)	4.41 oz (125g)	3.28 oz (93g)
Dimensions	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	3.3" x 1.8" x 0.9" (84 x 46 x 22.9 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)	3.54" x 1.85" x 0.94" (90 x 47 x 23.9 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Clamshell
Platform / OS	Android	(proprietary)	Windows	Windows	(proprietary)
Network Bands	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	CDMA: 850, 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	CDMA: 850, 1900 AMPS: 850
Data Technology	LTE (Cat 3)	1xRTT	LTE (Cat 3)	HSPA+ 21	1xRTT
Features
GPS / Location	n/a	Yes	n/a	n/a	Yes
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a	-
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	Yes M3, T4 (very tele-coil compatible)	Yes M3 (mostly compatible)	Yes M3 (mostly compatible)
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	-	Yes
Alerts
Extra Display	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes	-	Yes	Yes	-
Mobile Hotspot	n/a	-	n/a	n/a	-
USB	Yes Micro-USB	-	Yes Micro-USB	Yes Micro-USB	-
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	-	n/a	n/a	Yes
Ringer ID	n/a	-	n/a	n/a	Yes
Voice Dialing	n/a	Yes	n/a	n/a	Yes
Customization
Custom Graphics	n/a	Yes	n/a	n/a	Yes
Custom Ringtones	n/a	Yes	n/a	n/a	Yes
Real-Music Ringers	n/a	-	n/a	n/a	-
Data & Network
Data Tethering	n/a	-	n/a	n/a	-
WAP / Web Browser	n/a	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	Yes	-	-	Yes	-
Messaging
Email Client	n/a	-	n/a	n/a	-
EMS / Picture Messaging	n/a	Yes	n/a	n/a	-
Instant Messaging	n/a	-	n/a	n/a	-
MMS	n/a	-	n/a	n/a	-
Text Messaging Templates	n/a	Yes	n/a	n/a	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	-
Music Player	n/a	-	n/a	n/a	-
Productivity
Alarm	n/a	Yes	n/a	n/a	Yes
Calculator	n/a	Yes	n/a	n/a	Yes
Calendar	n/a	Yes	n/a	n/a	Yes
To-Do List	n/a	Yes	n/a	n/a	Yes
Voice Memo	n/a	Yes	n/a	n/a	Yes
Software
BREW	n/a	Yes	n/a	n/a	-
Games	n/a	Yes	n/a	n/a	Yes
Java (J2ME)	n/a	-	n/a	n/a	Yes
Voice
HD Voice	Yes	-	-	-	-
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	Yes
Speaker Phone	Yes	-	Yes	Yes	Yes
	ZTE Speed	Samsung SCH-A570	Nokia Lumia 900	Huawei W1	Samsung PM-A840
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Speed	Samsung SCH-A570	Nokia Lumia 900	Huawei W1	Samsung PM-A840