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Phone	ZTE Z431 / Altair	Nokia 3650	Sony Ericsson Z750	BlackBerry Bold 9650	Nokia 3600
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.4" diag. 4 : 3	?	2.2" diag. 4 : 3	2.4" diag. 4 : 3	?
Display Resolution & Type	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	176 x 208 pixels LCD (TFT/TFD)	240 x 320 pixels (~182 ppi) LCD (TFT/TFD)	480 x 360 pixels (~246 ppi) LCD (TFT/TFD)	176 x 208 pixels LCD (Color)
Display Refresh	?	?	?	?	?
Battery	1,000 mAh	850 mAh	950 mAh	1,400 mAh	?
Processor	?	?	?	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	2 megapixel	Yes	2 megapixel	3 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	?	?	?	?
Front Camera	-	-	-	-	-
Weight	3.52 oz (100g)	4.59 oz (130g)	3.88 oz (110g)	4.8 oz (136g)	4.59 oz (130g)
Dimensions	4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm)	5.1" x 2.24" x 1" (130 x 57 x 25.4 mm)	3.83" x 1.93" x 0.79" (97 x 49 x 20.1 mm)	4.41" x 2.44" x 0.56" (112 x 62 x 14.2 mm)	5.1" x 2.24" x 1" (130 x 57 x 25.4 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slab
Platform / OS	(proprietary)	S60 (Symbian)	(proprietary)	BlackBerry OS	S60 (Symbian)
Network Bands	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	GSM: 850, 1900
Data Technology	?	GPRS	HSDPA 1.8	EVDO rA	GPRS
Features
GPS / Location	Yes	n/a	-	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	-	n/a	n/a
Hearing Aid Compatible	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M3 (mostly compatible)	-
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	Yes	Yes	-	Yes	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	Yes
USB	Yes Micro-USB	-	Yes	Yes Micro-USB	-
Wi-Fi	-	-	-	Yes 802.11 b,g	-
Contacts
Picture ID	Yes	n/a	Yes	n/a	n/a
Ringer ID	Yes	n/a	Yes	n/a	n/a
Voice Dialing	-	n/a	-	n/a	n/a
Customization
Changeable Body Plates	-	Yes	-	-	Yes
Custom Graphics	Yes	n/a	Yes	n/a	n/a
Custom Ringtones	Yes	n/a	Yes	n/a	n/a
Real-Music Ringers	Yes	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	Yes	n/a	n/a
External Antenna Jack	-	n/a	Yes	n/a	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	n/a
Side Keys	Yes	-	-	Yes	-
Text Keyboard, Hardware	Yes	-	-	Yes	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	Yes	n/a	Yes	n/a	n/a
EMS / Picture Messaging	-	n/a	-	n/a	n/a
Instant Messaging	-	n/a	Yes	n/a	n/a
MMS	Yes	n/a	Yes	n/a	n/a
Text Messaging Templates	Yes	n/a	Yes	n/a	n/a
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	-	Yes	-
Music Player	Yes	n/a	Yes	n/a	n/a
Photo & Video
Video Calling	-	n/a	Yes *	n/a	n/a
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	Yes	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	-	n/a	Yes	n/a	n/a
Voice Memo	Yes	n/a	Yes	n/a	n/a
Software
BREW	Yes	n/a	-	n/a	n/a
Games	Yes	n/a	Yes	n/a	n/a
Java (J2ME)	-	n/a	Yes	n/a	n/a
Voice
Push-To-Talk	-	-	-	Yes *	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Z431 / Altair	Nokia 3650	Sony Ericsson Z750	BlackBerry Bold 9650	Nokia 3600
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	ZTE Z431 / Altair	Nokia 3650	Sony Ericsson Z750	BlackBerry Bold 9650	Nokia 3600