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Phone	Samsung SGH-A127	HTC Droid Eris	Samsung SGH-T809 / SGH-D820	Motorola Rival A455	Apple iPhone 4 (GSM)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	?	2.2" diag. 4 : 3	3.5" diag. 5 : 3
Display Resolution & Type	128 x 160 pixels LCD (STN)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	176 x 220 pixels (~131 ppi) LCD (TFT/TFD)	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	800 mAh	1,300 mAh	?	940 mAh	?
Processor	?	528 MHz MSM7600	?	?	Apple A4
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	32 GB *
Main Camera	Yes	5 megapixel	1 megapixel	2 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	CIF (352 x 288)	CIF (352 x 288)	QVGA (320 x 240)	720p HD
Front Camera	-	-	-	-	Yes
Weight	2.86 oz (81g)	4.43 oz (126g)	3.35 oz (95g)	4.48 oz (127g)	4.8 oz (136g)
Dimensions	3.39" x 1.67" x 0.76" (86 x 42 x 19.3 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	3.9" x 2" x 0.58" (99 x 51 x 14.7 mm)	3.82" x 1.96" x 0.73" (97 x 50 x 18.5 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)
Form Factor	Clamshell	Slab	Slide	Slide	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	iOS
Network Bands	GSM: 850, 1900	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900
Data Technology	GPRS	EVDO rA	EDGE	EVDO r0	HSPA 7.2
Features
GPS / Location	-	n/a	-	Yes	n/a
Accessibility
Adjustable Text Size	-	n/a	-	-	n/a
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly 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
Alerts
Extra Display	Yes	-	-	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	-	-	n/a
USB	-	Yes Mini-USB	Yes	Yes Micro-USB	Yes
Wi-Fi	-	Yes 802.11 b,g	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	-	n/a	Yes	Yes	n/a
Ringer ID	Yes	n/a	Yes	Yes	n/a
Voice Dialing	-	n/a	-	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	Yes	n/a
Data & Network
Data Tethering	-	n/a	Yes	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	-
Touch Screen	-	Yes Capacitive	-	Yes	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
Email Client	-	n/a	-	Yes	n/a
EMS / Picture Messaging	-	n/a	Yes	Yes	n/a
Instant Messaging	-	n/a	Yes	Yes	n/a
MMS	Yes	n/a	Yes	Yes	n/a
Text Messaging Templates	Yes	n/a	Yes	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	-	Yes	Yes
Music Player	-	n/a	Yes	Yes	n/a
Stereo Speakers	-	-	Yes	-	-
Photo & Video
TV Output	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	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
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-A127	HTC Droid Eris	Samsung SGH-T809 / SGH-D820	Motorola Rival A455	Apple iPhone 4 (GSM)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-A127	HTC Droid Eris	Samsung SGH-T809 / SGH-D820	Motorola Rival A455	Apple iPhone 4 (GSM)