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Specifications
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Phone	Samsung SPH-A660 / VI660	HTC Amaze 4G	Sanyo RL-4930	Motorola Rival A455	Samsung Sidekick 4G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.3" diag. 16 : 9	?	2.2" diag. 4 : 3	3.5" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (Color)	540 x 960 pixels (~256 ppi) LCD (TFT/TFD)	128 x 112 pixels LCD (STN)	176 x 220 pixels (~131 ppi) LCD (TFT/TFD)	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	?	1,730 mAh	1,700 mAh	940 mAh	?
Processor	?	1.5 GHz Qualcomm Snapdragon S3 dual-core	?	?	1 GHz Samsung Hummingbird Cortex A8
RAM	?	1 GB	?	?	?
Storage	? raw hardware	16 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	-	8 megapixel	-	2 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	1080p HD	-	QVGA (320 x 240)	WVGA / 480p
Front Camera	-	2 megapixel	-	-	Yes
Weight	3.54 oz (100g)	6.1 oz (173g)	4.4 oz (125g)	4.48 oz (127g)	5.7 oz (162g)
Dimensions	3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm)	5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm)	4.5" x 2" x 1" (114 x 51 x 25.4 mm)	3.82" x 1.96" x 0.73" (97 x 50 x 18.5 mm)	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)
Form Factor	Clamshell	Slab	Slab	Slide	Slide
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	HSPA+ 42	1xRTT	EVDO r0	HSPA+ 21
Features
Flashlight	-	Yes	-	-	-
GPS / Location	Yes	n/a	Yes	Yes	n/a
Ruggedized	-	-	Yes	-	-
Accessibility
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Connectivity
Bluetooth	-	Yes	-	Yes	Yes
Mobile Hotspot	-	n/a	-	-	n/a
NFC	-	Yes	-	-	-
USB	-	Yes	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 a,b,g,n)	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	Yes	Yes	n/a
Ringer ID	Yes	n/a	Yes	Yes	n/a
Voice Dialing	Yes	n/a	Yes	Yes	n/a
Customization
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	n/a	Yes	Yes	n/a
Real-Music Ringers	-	n/a	-	Yes	n/a
Data & Network
Data Tethering	Yes	n/a	-	Yes	n/a
WAP / Web Browser	Yes	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	-	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	Yes
Touch Screen	-	Yes Capacitive	-	Yes	Yes
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	-	n/a	-	Yes	n/a
EMS / Picture Messaging	-	n/a	-	Yes	n/a
Instant Messaging	-	n/a	-	Yes	n/a
MMS	-	n/a	-	Yes	n/a
Text Messaging Templates	-	n/a	-	Yes	n/a
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	-	Yes	-	Yes	Yes
Music Player	-	n/a	-	Yes	n/a
Photo & Video
DLNA	-	Yes	-	-	Yes
TV Output	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	-	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	Yes	n/a	Yes	-	n/a
Voice Memo	Yes	n/a	Yes	Yes	n/a
Software
BREW	-	n/a	-	Yes	n/a
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	Yes	n/a	Yes	-	n/a
Voice
Call Screening	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	-	-	n/a
Push-To-Talk	-	-	Yes	-	-
Speaker Phone	-	Yes	Yes	Yes	Yes
	Samsung SPH-A660 / VI660	HTC Amaze 4G	Sanyo RL-4930	Motorola Rival A455	Samsung Sidekick 4G
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-A660 / VI660	HTC Amaze 4G	Sanyo RL-4930	Motorola Rival A455	Samsung Sidekick 4G