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Phone Amazon Fire Samsung SGH-X640 Palm Pre 2 (GSM) Samsung SCH-A220 Huawei M750
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.7" diag.
16 : 9
? 3.1" diag.
5 : 3
? 2.8" diag.
4 : 3
Display Resolution & Type 720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 2,400 mAh 800 mAh 1,150 mAh ? 1,150 mAh
Processor 2.2 GHz Qualcomm Snapdragon 800 ? 1 GHz TI 3630 ? ?
RAM 2 GB ? ? ? ?
Storage 32 GB * ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 13 megapixel Yes 5 megapixel - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD - VGA (640 x 480) - -
Front Camera 2 megapixel - - - -
Weight 5.64 oz
(160g)
3 oz
(85g)
5.1 oz
(145g)
3.25 oz
(92g)
3.92 oz
(111g)
Dimensions 5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.96" x 2.35" x 0.67"
(101 x 60 x 17 mm)
2.87" x 2.09" x 0.94"
(73 x 53 x 23.9 mm)
4.21" x 2.25" x 0.59"
(107 x 57 x 14.9 mm)
Form Factor Slab Clamshell Slide Clamshell Slab
Platform / OS (proprietary) (proprietary) webOS (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

GSM: 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1700, 1900

Data Technology LTE (Cat 4) GPRS HSDPA 3.6 1xRTT 1xRTT
Features 
Flashlight Yes - - - -
GPS / Location Yes - n/a Yes Yes
Accessibility
Hearing Aid Compatible Yes - - - Yes
Multiple Languages Yes Yes n/a Yes -
TTY/TDD (Digital) Yes - Yes - Yes
Connectivity
Bluetooth Yes
Classic Audio
-
Yes
Classic Audio
-
Yes
Classic Audio
Mobile Hotspot Yes - n/a - -
NFC Yes - - - -
USB Yes
Micro-USB
- Yes
Micro-USB
- Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
802.11 b,g
- -
Contacts
Picture ID Yes Yes n/a - Yes
Ringer ID Yes Yes n/a Yes Yes
Voice Dialing Yes - n/a Yes -
Customization
Custom Graphics - Yes n/a Yes Yes
Custom Ringtones Yes Yes n/a Yes Yes
Real-Music Ringers - - n/a - -
Data & Network
Data Tethering Yes - n/a Yes -
WAP / Web Browser Yes Yes n/a Yes Yes
Input
Predictive Text Entry Yes Yes n/a Yes -
Side Keys Yes Yes Yes Yes Yes
Stylus - - - - Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen Yes - Yes - Yes
Memory
Memory Card Slot - - - - Yes
Messaging
Email Client Yes - n/a - Yes
EMS / Picture Messaging - Yes n/a - -
Instant Messaging - - n/a - Yes
MMS Yes Yes n/a - Yes
Text Messaging Templates Yes Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player Yes - n/a - Yes
Stereo Speakers Yes - - - -
Photo & Video
Miracast Yes - - - -
TV Output Yes - - - -
Productivity
Alarm Yes Yes n/a Yes Yes
Calculator Yes Yes n/a Yes Yes
Calendar Yes Yes n/a Yes Yes
To-Do List - Yes n/a Yes -
Voice Memo Yes Yes n/a Yes Yes
Software
BREW - - n/a - Yes
Games Yes Yes n/a - Yes
Java (J2ME) - Yes n/a - -
Voice
HD Voice Yes - - - -
Headset Jack (2.5 mm) - Yes n/a Yes -
Speaker Phone Yes Yes Yes - Yes
  Amazon Fire Samsung SGH-X640 Palm Pre 2 (GSM) Samsung SCH-A220 Huawei M750
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Phone Amazon Fire Samsung SGH-X640 Palm Pre 2 (GSM) Samsung SCH-A220 Huawei M750

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