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Phone	HTC EVO Design 4G / Hero S (CDMA)	Motorola i530	HTC HD7 / HD7S	Samsung SGH-A157	ZTE Solar
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4" diag. 16 : 9	?	4.3" diag. 5 : 3	1.8" diag. 4 : 3	4.5" diag. 16 : 9
Display Resolution & Type	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)	?	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,520 mAh	?	1,230 mAh	800 mAh	2,070 mAh
Processor	1.2 GHz Qualcomm Snapdragon S2 MSM8655	?	1 GHz Qualcomm Snapdragon S1 QSD8250	?	1.2 GHz Qualcomm Snapdragon 200 MSM8625
RAM	768 MB	?	?	?	768 MB
Storage	4 GB	? raw hardware	16 GB	256 MB	4 GB
Main Camera	5 megapixel	-	5 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	720p HD	-	WVGA / 480p
Front Camera	1 megapixel	-	-	-	-
Weight	5.22 oz (148g)	5.5 oz (156g)	5.71 oz (162g)	2.99 oz (85g)	5.54 oz (157g)
Dimensions	4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm)	3.7" x 2.13" x 1.26" (94 x 54 x 32 mm)	4.8" x 2.7" x 0.44" (122 x 69 x 11.2 mm)	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	5.24" x 2.6" x 0.39" (133 x 66 x 9.9 mm)
Form Factor	Slab	Clamshell	Slab	Clamshell	Slab
Platform / OS	Android	(proprietary)	Windows	(proprietary)	Android
Network Bands	4G WiMAX: 41 WCDMA: 1, 8 CDMA: 800, 850, 1900 GSM: 850, 1900 *	iDEN: 800	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 *	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 1900
Data Technology	WiMAX	-	HSPA 7.2	?	HSPA 7.2
Features
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	Yes	n/a	Yes	n/a
Ruggedized	-	Yes	-	-	-
Accessibility
Adjustable Text Size	n/a	-	n/a	Yes	n/a
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	-	Yes M4 (very 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
Alerts
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	Yes	-	Yes	-	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	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	Yes	n/a	Yes	n/a
Voice Dialing	n/a	Yes	n/a	-	n/a
Customization
Custom Graphics	n/a	-	n/a	Yes	n/a
Custom Ringtones	n/a	Yes	n/a	Yes	n/a
Real-Music Ringers	n/a	-	n/a	Yes	n/a
Data & Network
Data Tethering	n/a	Yes	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
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	n/a	-	n/a	Yes	n/a
Text Messaging Templates	n/a	-	n/a	Yes	n/a
Music
FM Radio	Yes	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	n/a	-	n/a	-	n/a
Stereo Speakers	-	-	Yes	-	-
Photo & Video
DLNA	Yes	-	-	-	-
Productivity
Alarm	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	Yes	n/a
Voice Memo	n/a	Yes	n/a	Yes	n/a
Software
Games	n/a	-	n/a	-	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	-	n/a
Push-To-Talk	-	Yes	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	HTC EVO Design 4G / Hero S (CDMA)	Motorola i530	HTC HD7 / HD7S	Samsung SGH-A157	ZTE Solar
	X >	< X >	< X >	< X >	< X

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


Phone	HTC EVO Design 4G / Hero S (CDMA)	Motorola i530	HTC HD7 / HD7S	Samsung SGH-A157	ZTE Solar