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Phone	ZTE Agent	Samsung DoubleTime	Samsung SPH-i550	Samsung SCH-A990	HTC Droid Eris
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Not yet released	Released	Released
Display Size	2.4" diag. 4 : 3	3.2" diag. 5 : 3	?	?	3.2" diag. 5 : 3
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	900 mAh	1,200 mAh	?	1,000 mAh	1,300 mAh
Processor	?	600 MHz Qualcomm	200 MHz Motorola MX-1	?	528 MHz MSM7600
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	1 megapixel	3 megapixel	1 megapixel	3 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	?	?	CIF (352 x 288)
Front Camera	-	-	-	-	-
Weight	3.53 oz (100g)	5.22 oz (148g)	?	4.4 oz (125g)	4.43 oz (126g)
Dimensions	4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm)	4.45" x 2.44" x 0.59" (113 x 62 x 15 mm)	3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)
Form Factor	Slab	Clamshell	Clamshell	Clamshell	Slab
Platform / OS	(proprietary)	Android	Palm OS	(proprietary)	Android
Network Bands	CDMA: 850, 1700, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	1xRTT	HSPA 7.2	1xRTT	EVDO r0	EVDO rA
Features
Flashlight	-	-	-	Yes	-
GPS / Location	Yes	n/a	n/a	Yes	n/a
Accessibility
Hearing Aid Compatible	Yes	Yes	-	Yes	Yes
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	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 802.11 b,g
Contacts
Picture ID	-	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	-	n/a	n/a	Yes	n/a
Customization
Custom Graphics	Yes	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	Yes	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	-	n/a	n/a	Yes	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
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	Yes	Yes	-	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	Yes	n/a	n/a	-	n/a
EMS / Picture Messaging	-	n/a	n/a	Yes	n/a
Instant Messaging	Yes	n/a	n/a	-	n/a
MMS	Yes	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	Yes	-	-	Yes
Music Player	Yes	n/a	n/a	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Photo & Video
TV Output	-	-	-	Yes	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	-	n/a
Voice Memo	Yes	n/a	n/a	Yes	n/a
Software
BREW	Yes	n/a	n/a	Yes	n/a
Games	Yes	n/a	n/a	Yes	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	n/a	-	n/a
Speaker Phone	Yes	Yes	-	Yes	Yes
	ZTE Agent	Samsung DoubleTime	Samsung SPH-i550	Samsung SCH-A990	HTC Droid Eris
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Agent	Samsung DoubleTime	Samsung SPH-i550	Samsung SCH-A990	HTC Droid Eris