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Phone	Ericsson R278d	ZTE Z998 / Unico LTE	HTC EVO Design 4G / Hero S (CDMA)	Samsung Trance SCH-U490	HTC 2125 / 2100 (Faraday)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.5" diag. 16 : 9	4" diag. 16 : 9	2.1" diag. 4 : 3	?
Display Resolution & Type	101 x 40 pixels	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)	176 x 220 pixels (~134 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	?
Battery	?	2,070 mAh	1,520 mAh	?	1,150 mAh
Processor	?	1.2 GHz Qualcomm Snapdragon 400 MSM8930	1.2 GHz Qualcomm Snapdragon S2 MSM8655	?	200 MHz OMAP 850
RAM	?	1 GB	768 MB	?	?
Storage	? raw hardware	4 GB	4 GB	? raw hardware	? raw hardware
Main Camera	-	5 megapixel	5 megapixel	1 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	720p HD	-	QCIF (176 x 144)
Front Camera	-	1 megapixel	1 megapixel	-	-
Weight	9.28 oz (263g)	4.8 oz (136g)	5.22 oz (148g)	3.53 oz (100g)	4.09 oz (116g)
Dimensions	5.1" x 2" x 1" (130 x 51 x 25.4 mm)	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)	4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm)	4" x 1.97" x 0.55" (102 x 50 x 14 mm)	4.57" x 1.81" x 0.69" (116 x 46 x 17.5 mm)
Form Factor	Slab	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	Android	Android	(proprietary)	Windows Mobile Standard
Network Bands	TDMA: 850, 1900 AMPS: 850	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	4G WiMAX: 41 WCDMA: 1, 8 CDMA: 800, 850, 1900 GSM: 850, 1900 *	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900
Data Technology	-	LTE (Cat 3)	WiMAX	1xRTT	EDGE
Features
Flashlight	-	-	Yes	-	-
GPS / Location	-	n/a	n/a	Yes	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	Yes	n/a
Hearing Aid Compatible	-	Yes M3, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	-
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	-	n/a	n/a	-	n/a
USB	-	Yes Micro-USB	Yes Micro-USB	Yes	Yes Mini-USB
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-	-
Contacts
Picture ID	-	n/a	n/a	Yes	n/a
Ringer ID	-	n/a	n/a	Yes	n/a
Voice Dialing	-	n/a	n/a	Yes	n/a
Customization
Custom Graphics	-	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	-	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	Yes	n/a
External Antenna Jack	-	n/a	n/a	-	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	-	-
Memory
Memory Card Slot	-	Yes	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	Yes	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	n/a	Yes	n/a
Photo & Video
DLNA	-	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	-	n/a	n/a	Yes	n/a
Calendar	-	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	-	n/a
Voice Memo	-	n/a	n/a	Yes	n/a
Software
BREW	-	n/a	n/a	Yes	n/a
Games	-	n/a	n/a	Yes	n/a
Java (J2ME)	-	n/a	n/a	-	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	n/a	-	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Ericsson R278d	ZTE Z998 / Unico LTE	HTC EVO Design 4G / Hero S (CDMA)	Samsung Trance SCH-U490	HTC 2125 / 2100 (Faraday)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Ericsson R278d	ZTE Z998 / Unico LTE	HTC EVO Design 4G / Hero S (CDMA)	Samsung Trance SCH-U490	HTC 2125 / 2100 (Faraday)