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Specifications
	X >	< X >	< X >	< X >	< X

Phone	Amazon Fire	Nokia Lumia 521 / 520	Apple iPhone 3G	Samsung Glyde U940	ZTE Blade Vantage
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.7" diag. 16 : 9	4" diag. 5 : 3	3.5" diag. 5 : 3	2.8" diag. 16.5 : 9	5" diag. 16 : 9
Display Resolution & Type	720 x 1280 pixels (~312 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	240 x 440 pixels (~182 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	60 Hz
Battery	2,400 mAh	1,430 mAh	?	1,000 mAh	2,500 mAh
Processor	2.2 GHz Qualcomm Snapdragon 800	1 GHz Qualcomm Snapdragon S4 MSM8270	?	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM	2 GB	512 MB	?	?	2 GB
Storage	32 GB *	8 GB	16 GB *	? raw hardware	16 GB
Main Camera	13 megapixel	5 megapixel	2 megapixel	2 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	720p HD	-	QVGA (320 x 240)	720p HD
Front Camera	2 megapixel	-	-	-	2 megapixel
Weight	5.64 oz (160g)	4.39 oz (124g)	4.7 oz (133g)	4.2 oz (119g)	5.29 oz (150g)
Dimensions	5.5" x 2.6" x 0.35" (140 x 66 x 8.9 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)	4.52" x 2.44" x 0.49" (115 x 62 x 12.4 mm)	4.09" x 1.98" x 0.71" (104 x 50 x 18 mm)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)
Form Factor	Slab	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	Windows	iOS	(proprietary)	Android
Network Bands	4G LTE: 1, 2, 3, 4, 5, 7, 8, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 5, 13
Data Technology	LTE (Cat 4)	HSPA+ 21	HSDPA 3.6	EVDO r0	LTE (Cat 4)
Features
Flashlight	Yes	-	-	-	Yes
GPS / Location	Yes	n/a	n/a	Yes	n/a
Accessibility
Hearing Aid Compatible	Yes	Yes	-	Yes	Yes
Multiple Languages	Yes	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Connectivity
Bluetooth	Yes Classic Audio	Yes	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Mobile Hotspot	Yes	n/a	n/a	-	n/a
NFC	Yes	-	-	-	-
USB	Yes Micro-USB	Yes	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 5 (802.11 a,ac,b,g,n)	Yes	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	Yes	n/a
Ringer ID	Yes	n/a	n/a	Yes	n/a
Voice Dialing	Yes	n/a	n/a	Yes	n/a
Customization
Custom Graphics	-	n/a	n/a	Yes	n/a
Custom Ringtones	Yes	n/a	n/a	Yes	n/a
Real-Music Ringers	-	n/a	n/a	Yes	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	Yes	n/a
WAP / Web Browser	Yes	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes	-
Touch Screen	Yes	Yes	Yes	Yes	Yes
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	Yes	n/a	n/a	-	n/a
Instant Messaging	-	n/a	n/a	-	n/a
MMS	Yes	n/a	n/a	Yes	n/a
Text Messaging Templates	Yes	n/a	n/a	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	Yes	Yes	-	Yes
Music Player	Yes	n/a	n/a	Yes	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
Miracast	Yes	-	-	-	-
TV Output	Yes	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	n/a
Calculator	Yes	n/a	n/a	Yes	n/a
Calendar	Yes	n/a	n/a	Yes	n/a
To-Do List	-	n/a	n/a	-	n/a
Voice Memo	Yes	n/a	n/a	-	n/a
Software
BREW	-	n/a	n/a	Yes	n/a
Games	Yes	n/a	n/a	Yes	n/a
Voice
HD Voice	Yes	-	-	-	Yes
Headset Jack (2.5 mm)	-	n/a	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Amazon Fire	Nokia Lumia 521 / 520	Apple iPhone 3G	Samsung Glyde U940	ZTE Blade Vantage
	X >	< X >	< X >	< X >	< X

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


Phone	Amazon Fire	Nokia Lumia 521 / 520	Apple iPhone 3G	Samsung Glyde U940	ZTE Blade Vantage