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Phone	Samsung SCH-A310	Samsung Moment	Samsung Memoir SGH-T929	Cal-Comp EZ	HTC EVO Design 4G / Hero S (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	3.1" diag. 5 : 3	?	4" diag. 16 : 9
Display Resolution & Type	128 x 128 pixels LCD (Grayscale)	320 x 480 pixels (~180 ppi) AMOLED	240 x 400 pixels (~150 ppi) LCD (TFT/TFD)	128 x 128 pixels LCD (STN)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	?	1,440 mAh	?	800 mAh	1,520 mAh
Processor	?	?	?	?	1.2 GHz Qualcomm Snapdragon S2 MSM8655
RAM	?	?	?	?	768 MB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	4 GB
Main Camera	-	3 megapixel	8 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	CIF (352 x 288)	?	-	720p HD
Front Camera	-	-	-	-	1 megapixel
Weight	3.2 oz (91g)	5.67 oz (161g)	4.4 oz (125g)	2.47 oz (70g)	5.22 oz (148g)
Dimensions	3.43" x 1.89" x 0.87" (87 x 48 x 22.1 mm)	4.6" x 2.34" x 0.65" (117 x 59 x 16.5 mm)	4.17" x 2.11" x 0.55" (106 x 54 x 14 mm)	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G WiMAX: 41 WCDMA: 1, 8 CDMA: 800, 850, 1900 GSM: 850, 1900 *
Data Technology	1xRTT	EVDO rA	HSDPA 3.6	1xRTT	WiMAX
Features
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	Yes	Yes	n/a
Accessibility
Hearing Aid Compatible	-	Yes M4 (very compatible)	Yes M3 (mostly compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	Yes	-	Yes
Mobile Hotspot	-	n/a	-	-	n/a
USB	Yes	Yes Micro-USB	Yes	Yes Mini-USB	Yes Micro-USB
Wi-Fi	-	Yes 802.11 b,g	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	-	n/a	Yes	-	n/a
Ringer ID	-	n/a	-	-	n/a
Voice Dialing	Yes	n/a	Yes	-	n/a
Customization
Changeable Body Plates	Yes	-	-	-	-
Custom Graphics	-	n/a	Yes	-	n/a
Custom Ringtones	-	n/a	Yes	-	n/a
Real-Music Ringers	-	n/a	Yes	-	n/a
Data & Network
Data Tethering	Yes	n/a	-	-	n/a
WAP / Web Browser	Yes	n/a	Yes	-	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	-	n/a
Side Keys	Yes	Yes	Yes	-	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	Yes Capacitive	Yes	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	-	n/a	Yes	-	n/a
Instant Messaging	-	n/a	Yes	-	n/a
MMS	-	n/a	Yes	-	n/a
Text Messaging Templates	-	n/a	Yes	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	Yes	-	n/a
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	-	-	Yes	-	-
Productivity
Alarm	-	n/a	Yes	Yes	n/a
Calculator	-	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	-	n/a	Yes	Yes	n/a
Voice Memo	Yes	n/a	Yes	Yes *	n/a
Software
Games	Yes	n/a	Yes	-	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	-	Yes	n/a
Speaker Phone	-	Yes	Yes	-	Yes
	* Some versions only
	Samsung SCH-A310	Samsung Moment	Samsung Memoir SGH-T929	Cal-Comp EZ	HTC EVO Design 4G / Hero S (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SCH-A310	Samsung Moment	Samsung Memoir SGH-T929	Cal-Comp EZ	HTC EVO Design 4G / Hero S (CDMA)