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Phone	Nokia Lumia 521 / 520	Motorola Sidekick Slide	BlackBerry Curve 3G 9330	Kyocera Energi K490 / K493 / K494	Huawei W1
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4" diag. 5 : 3	?	2.5" diag. 4 : 3	?	4" diag. 5 : 3
Display Resolution & Type	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	320 x 240 pixels (~160 ppi) LCD (TFT/TFD)	104 x 80 pixels LCD (STN)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	?
Battery	1,430 mAh	?	1,150 mAh	?	1,950 mAh
Processor	1 GHz Qualcomm Snapdragon S4 MSM8270	225 MHz TI OMAP 850	?	?	1.2 GHz Qualcomm Snapdragon 400 MSM8230
RAM	512 MB	?	?	?	512 MB
Storage	8 GB	? raw hardware	? raw hardware	? raw hardware	4 GB
Main Camera	5 megapixel	1 megapixel	2 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	?	-	720p HD
Front Camera	-	-	-	-	Yes
Weight	4.39 oz (124g)	5.3 oz (150g)	3.7 oz (105g)	3.52 oz (100g)	4.41 oz (125g)
Dimensions	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)	4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm)	4.29" x 2.36" x 0.55" (109 x 60 x 14 mm)	4.45" x 1.89" x 0.91" (113 x 48 x 23.1 mm)	4.84" x 2.5" x 0.41" (123 x 64 x 10.4 mm)
Form Factor	Slab	Slide	Slab	Slab	Slab
Platform / OS	Windows	(proprietary)	BlackBerry OS	(proprietary)	Windows
Network Bands	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900 AMPS: 850 *	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSPA+ 21	EDGE	EVDO r0	1xRTT	HSPA+ 21
Features
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	-	n/a	Yes	n/a
Accessibility
Adjustable Text Size	n/a	Yes	n/a	-	n/a
Hearing Aid Compatible	Yes M3, T4 (very tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M3 (mostly compatible)
Multiple Languages	n/a	-	n/a	Yes *	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	-
Alerts
Ringer Profiles	-	Yes	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
USB	Yes	Yes	Yes Micro-USB	Yes	Yes Micro-USB
Wi-Fi	Yes	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	n/a	-	n/a
Ringer ID	n/a	Yes	n/a	Yes	n/a
Voice Dialing	n/a	-	n/a	Yes	n/a
Customization
Changeable Body Plates	-	-	-	Yes	-
Custom Graphics	n/a	Yes	n/a	Yes	n/a
Custom Ringtones	n/a	Yes	n/a	Yes	n/a
Real-Music Ringers	n/a	Yes	n/a	-	n/a
Data & Network
Data Tethering	n/a	-	n/a	Yes	n/a
WAP / Web Browser	n/a	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	-	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	-	Yes
Text Keyboard, Hardware	-	Yes	Yes	-	-
Touch Screen	Yes Capacitive	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	-	Yes
Messaging
Email Client	n/a	Yes	n/a	-	n/a
EMS / Picture Messaging	n/a	-	n/a	Yes	n/a
Instant Messaging	n/a	Yes	n/a	-	n/a
MMS	n/a	Yes	n/a	-	n/a
Music
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	n/a	Yes	n/a	-	n/a
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	-	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
To-Do List	n/a	Yes	n/a	-	n/a
Voice Memo	n/a	-	n/a	-	n/a
Software
BREW	n/a	-	n/a	Yes	n/a
Games	n/a	Yes	n/a	Yes	n/a
Java (J2ME)	n/a	Yes	n/a	-	n/a
Voice
Headset Jack (2.5 mm)	n/a	Yes	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	* Some versions only
	Nokia Lumia 521 / 520	Motorola Sidekick Slide	BlackBerry Curve 3G 9330	Kyocera Energi K490 / K493 / K494	Huawei W1
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia Lumia 521 / 520	Motorola Sidekick Slide	BlackBerry Curve 3G 9330	Kyocera Energi K490 / K493 / K494	Huawei W1