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Phone	Samsung SPH-N400	Samsung SPH-i550	Cal-Comp EZ	Huawei Ascend Q	Nokia Lumia 810
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Not yet released	Released	Released	Released
Display Size	?	?	?	3.2" diag. 5 : 3	4.3" diag. 5 : 3
Display Resolution & Type	128 x 128 pixels LCD (STN)	320 x 320 pixels LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED
Display Refresh	?	?	?	60 Hz	?
Battery	?	?	800 mAh	1,500 mAh	1,800 mAh
Processor	?	200 MHz Motorola MX-1	?	800 MHz Qualcomm MSM7627A	1.5 GHz Qualcomm Snapdragon
RAM	?	?	?	512 MB	1 GB
Storage	? raw hardware	? raw hardware	? raw hardware	2 GB	8 GB
Main Camera	-	1 megapixel	-	3 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	-	?	1080p HD
Front Camera	-	-	-	-	1 megapixel
Weight	4 oz (113g)	?	2.47 oz (70g)	4.6 oz (130g)	5.11 oz (145g)
Dimensions	4.25" x 2.04" x 0.82" (108 x 52 x 20.8 mm)	3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm)	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	4.8" x 2.3" x 0.5" (122 x 58 x 12.7 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)
Form Factor	Flip	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	Palm OS	(proprietary)	Android	Windows
Network Bands	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	CDMA: 850, 1700, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	1xRTT	1xRTT	EVDO rA	HSPA+ 42
Features
GPS / Location	Yes	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	-	n/a	n/a
Hearing Aid Compatible	-	-	-	Yes M4, T4 (very tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	-
Connectivity
Bluetooth	-	-	-	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	-	n/a	-	n/a	n/a
NFC	-	-	-	-	Yes
USB	Yes	-	Yes Mini-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	Yes	n/a	-	n/a	n/a
Ringer ID	Yes	n/a	-	n/a	n/a
Voice Dialing	Yes	n/a	-	n/a	n/a
Customization
Custom Graphics	Yes	n/a	-	n/a	n/a
Custom Ringtones	Yes	n/a	-	n/a	n/a
Real-Music Ringers	-	n/a	-	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	-	n/a	n/a
WAP / Web Browser	Yes	n/a	-	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	-	n/a	n/a
Side Keys	Yes	Yes	-	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	-	Yes	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	-	n/a	-	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
Music
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	-	n/a	-	n/a	n/a
Power
Wireless Charging	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	Yes	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	Yes	n/a	Yes	n/a	n/a
Voice Memo	-	n/a	Yes *	n/a	n/a
Software
Games	Yes	n/a	-	n/a	n/a
Java (J2ME)	Yes	n/a	-	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	Yes	n/a	n/a
Speaker Phone	Yes	-	-	Yes	Yes
	* Some versions only
	Samsung SPH-N400	Samsung SPH-i550	Cal-Comp EZ	Huawei Ascend Q	Nokia Lumia 810
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-N400	Samsung SPH-i550	Cal-Comp EZ	Huawei Ascend Q	Nokia Lumia 810