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Phone	Nokia 6108	ZTE Speed	NEC 525	Kyocera 3225	Nokia Lumia 521 / 520
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	4.5" diag. 16 : 9	?	?	4" diag. 5 : 3
Display Resolution & Type	128 x 128 pixels LCD (Color)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	162 x 216 pixels LCD (TFT/TFD)	? LCD (Grayscale)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	850 mAh	2,000 mAh	800 mAh	?	1,430 mAh
Processor	?	1.2 GHz Qualcomm Snapdragon 410 MSM8916	?	?	1 GHz Qualcomm Snapdragon S4 MSM8270
RAM	?	1 GB	?	?	512 MB
Storage	? raw hardware	8 GB	? raw hardware	? raw hardware	8 GB
Main Camera	-	5 megapixel	Yes	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	-	-	720p HD
Front Camera	-	2 megapixel	-	-	-
Weight	3.46 oz (98g)	4.8 oz (136g)	4.03 oz (114g)	4.23 oz (120g)	4.39 oz (124g)
Dimensions	4.17" x 1.83" x 0.9" (106 x 46 x 22.9 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	4.12" x 1.88" x 1.06" (105 x 48 x 26.9 mm)	3.4" x 1.97" x 1.02" (86 x 50 x 25.9 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	Windows
Network Bands	GSM: 900, 1800, 1900	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	GPRS	LTE (Cat 3)	GPRS	1xRTT	HSPA+ 21
Features
GPS / Location	-	n/a	-	Yes	n/a
Accessibility
Adjustable Text Size	-	n/a	-	-	n/a
Hearing Aid Compatible	-	Yes	-	-	Yes
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	Yes	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	-	-	Yes
Infrared (IR)	Yes	-	Yes	-	-
Mobile Hotspot	-	n/a	-	-	n/a
USB	-	Yes Micro-USB	Yes	-	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	-	-	Yes
Contacts
Picture ID	Yes	n/a	Yes	-	n/a
Ringer ID	Yes	n/a	Yes	-	n/a
Voice Dialing	-	n/a	Yes	Yes	n/a
Customization
Custom Graphics	Yes	n/a	Yes	Yes	n/a
Custom Ringtones	Yes	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	Yes	n/a	Yes	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	-	Yes
Stylus	Yes	-	-	-	-
Touch Screen	-	Yes	-	-	Yes
Memory
Memory Card Slot	-	Yes	-	-	Yes
Messaging
Email Client	Yes	n/a	Yes	-	n/a
EMS / Picture Messaging	-	n/a	Yes	Yes	n/a
Instant Messaging	-	n/a	-	-	n/a
MMS	Yes	n/a	Yes	-	n/a
Text Messaging Templates	-	n/a	-	-	n/a
Music
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	-	-	n/a
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	Yes	n/a	Yes	-	n/a
Voice Memo	-	n/a	Yes	-	n/a
Software
BREW	-	n/a	-	Yes	n/a
Games	Yes	n/a	Yes	Yes	n/a
Java (J2ME)	Yes	n/a	Yes	-	n/a
Voice
HD Voice	-	Yes	-	-	-
Headset Jack (2.5 mm)	-	n/a	Yes	Yes	n/a
Speaker Phone	Yes	Yes	-	Yes	Yes
	Nokia 6108	ZTE Speed	NEC 525	Kyocera 3225	Nokia Lumia 521 / 520
	X >	< X >	< X >	< X >	< X

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


Phone	Nokia 6108	ZTE Speed	NEC 525	Kyocera 3225	Nokia Lumia 521 / 520