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Phone	BlackBerry 8820	Nokia 6555	ZTE Z431 / Altair	Motorola Admiral	LG Optimus G (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2" diag. 4 : 3	2.4" diag. 4 : 3	3.1" diag. 4 : 3	4.7" diag. 5 : 3
Display Resolution & Type	320 x 240 pixels LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	320 x 240 pixels (~167 ppi) LCD (TFT/TFD)	480 x 640 pixels (~258 ppi) LCD (TFT/TFD)	768 x 1280 pixels (~318 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	1,400 mAh	1,020 mAh	1,000 mAh	1,860 mAh	2,100 mAh
Processor	?	?	?	1.2 GHz Qualcomm Snapdragon S2 MSM8655	1.5 GHz Qualcomm Snapdragon S4 Pro
RAM	?	?	?	512 MB	2 GB
Storage	? raw hardware	? raw hardware	? raw hardware	4 GB	32 GB
Main Camera	-	1 megapixel	2 megapixel	5 megapixel	13 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	QCIF (176 x 144)	QVGA (320 x 240)	720p HD	1080p HD
Front Camera	-	-	-	-	1 megapixel
Weight	4.73 oz (134g)	3.42 oz (97g)	3.52 oz (100g)	4.71 oz (134g)	5.11 oz (145g)
Dimensions	4.49" x 2.6" x 0.55" (114 x 66 x 14 mm)	3.92" x 1.74" x 0.77" (100 x 44 x 19.6 mm)	4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm)	4.68" x 2.44" x 0.48" (119 x 62 x 12.2 mm)	5.19" x 2.71" x 0.33" (132 x 69 x 8.5 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Slab
Platform / OS	BlackBerry OS	(proprietary)	(proprietary)	Android	Android
Network Bands	GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 800, 850, 1900	4G LTE: 25 CDMA: 800, 850, 1900
Data Technology	EDGE	WCDMA (UMTS)	?	EVDO rA	LTE (Cat 3)
Features
GPS / Location	n/a	-	Yes	n/a	n/a
Ruggedized	-	-	-	Yes	-
Accessibility
Adjustable Text Size	n/a	Yes	-	n/a	n/a
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)
Multiple Languages	n/a	Yes	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
Mobile Hotspot	n/a	-	-	n/a	n/a
NFC	-	-	-	-	Yes
USB	Yes Mini-USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes	-	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	n/a	Yes	Yes	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	Yes	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	Yes	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	Yes	Yes	-
Touch Screen	-	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	-
Messaging
Email Client	n/a	Yes	Yes	n/a	n/a
Instant Messaging	n/a	Yes	-	n/a	n/a
MMS	n/a	Yes	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	Yes	n/a	n/a
Music
FM Radio	-	-	-	Yes	-
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	n/a	Yes	Yes	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	Yes
Miracast	-	-	-	-	Yes
TV Output	-	-	-	-	Yes
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	Yes	-	n/a	n/a
Voice Memo	n/a	Yes	Yes	n/a	n/a
Software
BREW	n/a	-	Yes	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Java (J2ME)	n/a	Yes	-	n/a	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	Yes	-	n/a	n/a
Push-To-Talk	Yes *	Yes *	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	BlackBerry 8820	Nokia 6555	ZTE Z431 / Altair	Motorola Admiral	LG Optimus G (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	BlackBerry 8820	Nokia 6555	ZTE Z431 / Altair	Motorola Admiral	LG Optimus G (CDMA)