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Phone	Nokia 1661	ZTE Savvy	Samsung SPH-A520	Ericsson T28 World	BlackBerry Pearl 3G 9100 / 9105
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	1.8" diag. 4 : 3	4" diag. 5 : 3	?	?	2.3" diag. 1 : 1
Display Resolution & Type	128 x 160 pixels (~114 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	? LCD (STN)	?	360 x 400 pixels (~238 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	860 mAh	1,650 mAh	?	500 mAh	1,150 mAh
Processor	?	1 GHz Qualcomm MSM8625	?	?	?
RAM	?	768 MB	?	?	?
Storage	? raw hardware	4 GB	? raw hardware	? raw hardware	? raw hardware
Main Camera	-	5 megapixel	-	-	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	WVGA / 480p	-	-	?
Front Camera	-	-	-	-	-
Weight	2.9 oz (82g)	4.43 oz (126g)	3.6 oz (102g)	3.14 oz (89g)	3.3 oz (94g)
Dimensions	4.25" x 1.8" x 0.53" (108 x 46 x 13.5 mm)	4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm)	3.46" x 1.83" x 0.91" (88 x 46 x 23.1 mm)	3.9" x 2" x 0.6" (99 x 51 x 15.2 mm)	4.25" x 1.96" x 0.52" (108 x 50 x 13.2 mm)
Form Factor	Slab	Slab	Clamshell	Flip	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	BlackBerry OS
Network Bands	GSM: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850	GSM: 900, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	-	EVDO rA	1xRTT	-	HSDPA 3.6
Features
Flashlight	Yes	Yes	-	-	-
GPS / Location	-	n/a	Yes	-	n/a
Accessibility
Adjustable Text Size	-	n/a	-	-	n/a
Hearing Aid Compatible	-	Yes	-	-	Yes
Multiple Languages	-	n/a	Yes	-	n/a
TTY/TDD (Digital)	-	Yes	-	-	-
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	Yes	-	-	Yes	Yes
Connectivity
Bluetooth	-	Yes Classic Audio	-	-	Yes Classic Audio
USB	-	Yes Micro-USB	-	-	Yes Micro-USB
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	-	n/a	Yes	-	n/a
Ringer ID	-	n/a	Yes	-	n/a
Voice Dialing	-	n/a	Yes	Yes	n/a
Customization
Custom Graphics	-	n/a	Yes	-	n/a
Custom Ringtones	-	n/a	Yes	Yes	n/a
Real-Music Ringers	-	n/a	-	-	n/a
Data & Network
Data Tethering	-	n/a	Yes	Yes	n/a
WAP / Web Browser	-	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	-	-	-
Memory
Memory Card Slot	-	Yes	-	-	Yes
Messaging
Email Client	-	n/a	-	-	n/a
Instant Messaging	-	n/a	-	-	n/a
MMS	-	n/a	-	-	n/a
Text Messaging Templates	-	n/a	-	-	n/a
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	-	-	n/a
Photo & Video
DLNA	-	Yes	-	-	-
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	-	n/a
To-Do List	-	n/a	Yes	-	n/a
Voice Memo	Yes	n/a	Yes	-	n/a
Software
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	-	n/a	-	-	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	Yes	-	n/a
Speaker Phone	Yes	Yes	-	-	Yes
	* Some versions only
	Nokia 1661	ZTE Savvy	Samsung SPH-A520	Ericsson T28 World	BlackBerry Pearl 3G 9100 / 9105
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Nokia 1661	ZTE Savvy	Samsung SPH-A520	Ericsson T28 World	BlackBerry Pearl 3G 9100 / 9105