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Specifications
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Phone	NEC Terrain	Samsung Wafer R510	Apple iPhone 4 (GSM)	Samsung SCH-A570	HTC Droid Eris
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.1" diag. 4 : 3	1.9" diag. 4 : 3	3.5" diag. 5 : 3	?	3.2" diag. 5 : 3
Display Resolution & Type	480 x 640 pixels (~258 ppi) LCD (TFT/TFD)	220 x 176 pixels (~148 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	?	60 Hz
Battery	1,900 mAh	800 mAh	?	?	1,300 mAh
Processor	1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960	?	Apple A4	?	528 MHz MSM7600
RAM	1 GB	?	?	?	?
Storage	8 GB	? raw hardware	32 GB *	? raw hardware	? raw hardware
Main Camera	5 megapixel	1 megapixel	5 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	?	720p HD	-	CIF (352 x 288)
Front Camera	Yes	-	Yes	-	-
Weight	6.06 oz (172g)	2.47 oz (70g)	4.8 oz (136g)	3.6 oz (102g)	4.43 oz (126g)
Dimensions	5.02" x 2.54" x 0.57" (128 x 65 x 14.5 mm)	4.45" x 1.97" x 0.33" (113 x 50 x 8.4 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	3.3" x 1.8" x 0.9" (84 x 46 x 22.9 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)
Form Factor	Slab	Slab	Slab	Clamshell	Slab
Platform / OS	Android	(proprietary)	iOS	(proprietary)	Android
Network Bands	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 3)	EVDO r0	HSPA 7.2	1xRTT	EVDO rA
Features
GPS / Location	n/a	Yes	n/a	Yes	n/a
Ruggedized	Yes	-	-	-	-
Water-Resistant	Yes IPX7 (snorkeling)	-	-	-	-
Accessibility
Adjustable Text Size	n/a	-	n/a	-	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
NFC	Yes	-	-	-	-
USB	Yes Micro-USB	-	Yes	-	Yes Mini-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)	-	Yes 802.11 b,g
Contacts
Picture ID	n/a	Yes	n/a	-	n/a
Ringer ID	n/a	-	n/a	-	n/a
Voice Dialing	n/a	Yes	n/a	Yes	n/a
Customization
Custom Graphics	n/a	Yes	n/a	Yes	n/a
Custom Ringtones	n/a	Yes	n/a	Yes	n/a
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	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes Capacitive	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	-	Yes
Messaging
Email Client	n/a	-	n/a	-	n/a
EMS / Picture Messaging	n/a	-	n/a	Yes	n/a
Instant Messaging	n/a	-	n/a	-	n/a
MMS	n/a	Yes	n/a	-	n/a
Text Messaging Templates	n/a	-	n/a	Yes	n/a
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	n/a	Yes	n/a	-	n/a
Stereo Speakers	-	Yes	-	-	-
Photo & Video
TV Output	-	-	Yes	-	-
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	Yes	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
To-Do List	n/a	-	n/a	Yes	n/a
Voice Memo	n/a	Yes	n/a	Yes	n/a
Software
BREW	n/a	Yes	n/a	Yes	n/a
Games	n/a	Yes	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	n/a	-	n/a	Yes	n/a
Push-To-Talk	Yes	-	-	-	-
Speaker Phone	Yes	Yes	Yes	-	Yes
	* Some versions only
	NEC Terrain	Samsung Wafer R510	Apple iPhone 4 (GSM)	Samsung SCH-A570	HTC Droid Eris
	X >	< X >	< X >	< X >	< X

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


Phone	NEC Terrain	Samsung Wafer R510	Apple iPhone 4 (GSM)	Samsung SCH-A570	HTC Droid Eris