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Phone Amazon Fire Apple iPhone 3G Nokia Lumia 521 / 520 Samsung Glyde U940 Samsung SCH-U430
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
3.5" diag.
5 : 3
4" diag.
5 : 3
2.8" diag.
16.5 : 9
?
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? ?
Battery 2,400 mAh ? 1,430 mAh 1,000 mAh 1,000 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? 1 GHz Qualcomm Snapdragon S4 MSM8270 ? ?
RAM 2 GB ? 512 MB ? ?
Storage 32 GB * 16 GB * 8 GB ? raw hardware ? raw hardware
Main Camera 13 megapixel 2 megapixel 5 megapixel 2 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD - 720p HD QVGA (320 x 240) -
Front Camera 2 megapixel - - - -
Weight 5.64 oz
(160g)
4.7 oz
(133g)
4.39 oz
(124g)
4.2 oz
(119g)
3.21 oz
(91g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
4.52" x 2.44" x 0.49"
(115 x 62 x 12.4 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
3.67" x 1.85" x 0.78"
(93 x 47 x 19.8 mm)
Form Factor Slab Slab Slab Slide Clamshell
Platform / OS (proprietary) iOS Windows (proprietary) (proprietary)
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 4) HSDPA 3.6 HSPA+ 21 EVDO r0 1xRTT
Features 
Flashlight Yes - - - -
GPS / Location Yes n/a n/a Yes Yes
Accessibility
Adjustable Text Size - n/a n/a - Yes
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot Yes n/a n/a - -
NFC Yes - - - -
USB Yes
Micro-USB
Yes Yes Yes -
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
Yes - -
Contacts
Picture ID Yes n/a n/a Yes Yes
Ringer ID Yes n/a n/a Yes Yes
Voice Dialing Yes n/a n/a Yes Yes
Customization
Custom Graphics - n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers - n/a n/a Yes -
Data & Network
Data Tethering Yes n/a n/a Yes -
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes Yes Yes Yes -
Memory
Memory Card Slot - - Yes Yes -
Messaging
Email Client Yes n/a n/a - Yes
EMS / Picture Messaging - n/a n/a - Yes
Instant Messaging - n/a n/a - Yes
MMS Yes n/a n/a Yes Yes
Text Messaging Templates Yes n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) Yes Yes Yes - -
Music Player Yes n/a n/a Yes -
Stereo Speakers Yes - - - -
Photo & Video
Miracast Yes - - - -
TV Output Yes Yes - - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List - n/a n/a - -
Voice Memo Yes n/a n/a - Yes
Software
BREW - n/a n/a Yes Yes
Games Yes n/a n/a Yes Yes
Voice
HD Voice Yes - - - -
Headset Jack (2.5 mm) - n/a n/a Yes Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Amazon Fire Apple iPhone 3G Nokia Lumia 521 / 520 Samsung Glyde U940 Samsung SCH-U430
  X > < X > < X > < X > < X

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

 
Phone Amazon Fire Apple iPhone 3G Nokia Lumia 521 / 520 Samsung Glyde U940 Samsung SCH-U430

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