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Phone	LG AX-4270 / VX-4270	Nokia Lumia 810	LG K20 / Harmony / Grace	Samsung SPH-N400	Samsung Nexus S 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.3" diag. 5 : 3	5.3" diag. 16 : 9	?	4" diag. 5 : 3
Display Resolution & Type	128 x 128 pixels LCD (STN)	480 x 800 pixels (~217 ppi) AMOLED	720 x 1280 pixels (~277 ppi) LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	480 x 800 pixels (~233 ppi) AMOLED
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	?	1,800 mAh	2,800 mAh	?	1,500 mAh
Processor	?	1.5 GHz Qualcomm Snapdragon	1.4 GHz Qualcomm Snapdragon 425 (MSM8917)	?	1 GHz Samsung Hummingbird Cortex A8
RAM	?	1 GB	1.5 GB	?	?
Storage	? raw hardware	8 GB	16 GB	? raw hardware	16 GB
Main Camera	-	8 megapixel	8 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	1080p HD	1080p HD	-	WVGA / 480p
Front Camera	-	1 megapixel	5 megapixel	-	Yes
Weight	3.21 oz (91g)	5.11 oz (145g)	5 oz (142g)	4 oz (113g)	4.62 oz (131g)
Dimensions	3.27" x 1.76" x 0.91" (83 x 45 x 23.1 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	5.9" x 3" x 0.3" (150 x 76 x 7.6 mm)	4.25" x 2.04" x 0.82" (108 x 52 x 20.8 mm)	4.88" x 2.48" x 0.44" (124 x 63 x 11.2 mm)
Form Factor	Clamshell	Slab	Slab	Flip	Slab
Platform / OS	(proprietary)	Windows	Android	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	4G WiMAX: 41 CDMA: 850, 1900
Data Technology	1xRTT	HSPA+ 42	LTE (Cat 4)	1xRTT	WiMAX
Features
Flashlight	-	-	Yes	-	-
GPS / Location	Yes	n/a	n/a	Yes	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	-	n/a
Hearing Aid Compatible	-	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4 (very compatible)
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	Yes	-	-	-	-
Connectivity
Bluetooth	-	Yes	Yes	-	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
NFC	-	Yes	Yes *	-	Yes
USB	-	Yes Micro-USB	Yes Micro-USB	Yes	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	Yes	n/a	n/a	Yes	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	-	n/a	n/a	-	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	Yes	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
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
Instant Messaging	-	n/a	n/a	-	n/a
MMS	Yes	n/a	n/a	-	n/a
Text Messaging Templates	Yes	n/a	n/a	-	n/a
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	-	Yes
Music Player	-	n/a	n/a	-	n/a
Power
Wireless Charging	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	Yes	n/a
Voice Memo	Yes	n/a	n/a	-	n/a
Software
BREW	Yes	n/a	n/a	-	n/a
Games	Yes	n/a	n/a	Yes	n/a
Java (J2ME)	-	n/a	n/a	Yes	n/a
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	LG AX-4270 / VX-4270	Nokia Lumia 810	LG K20 / Harmony / Grace	Samsung SPH-N400	Samsung Nexus S 4G
	X >	< X >	< X >	< X >	< X

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


Phone	LG AX-4270 / VX-4270	Nokia Lumia 810	LG K20 / Harmony / Grace	Samsung SPH-N400	Samsung Nexus S 4G