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Phone Samsung SGH-X640 Motorola W315 Amazon Fire Samsung SPH-S100 Motorola i580
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size ? ? 4.7" diag.
16 : 9
? ?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
? 176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? ? ?
Battery 800 mAh 880 mAh 2,400 mAh ? ?
Processor ? ? 2.2 GHz Qualcomm Snapdragon 800 ? ?
RAM ? ? 2 GB ? ?
Storage ? raw hardware ? raw hardware 32 GB * ? raw hardware ? raw hardware
Main Camera Yes - 13 megapixel - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - 1080p HD - ?
Front Camera - - 2 megapixel - -
Weight 3 oz
(85g)
3.53 oz
(100g)
5.64 oz
(160g)
? 4.9 oz
(139g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.48" x 1.97" x 0.89"
(88 x 50 x 22.6 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
? 3.68" x 2.2" x 1.2"
(93 x 56 x 30.5 mm)
Form Factor Clamshell Clamshell Slab Watch Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 1900

iDEN: 800

Data Technology GPRS 1xRTT LTE (Cat 4) - WiDEN
Features 
Flashlight - - Yes - -
GPS / Location - Yes Yes - Yes
Ruggedized - - - - Yes
Accessibility
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages Yes Yes Yes - Yes
TTY/TDD (Digital) - Yes Yes - Yes
Alerts
Extra Display - Yes - - Yes
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - - Yes
Classic Audio
- Yes
Classic Audio
Mobile Hotspot - - Yes - -
NFC - - Yes - -
USB - Yes
Mini-USB
Yes
Micro-USB
- -
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes Yes Yes - Yes
Ringer ID Yes Yes Yes - Yes
Voice Dialing - Yes Yes - Yes
Customization
Custom Graphics Yes Yes - - Yes
Custom Ringtones Yes Yes Yes - Yes
Data & Network
Data Tethering - Yes * Yes - Yes
WAP / Web Browser Yes Yes * Yes - Yes
Input
Predictive Text Entry Yes Yes Yes - Yes
Side Keys Yes Yes Yes - Yes
Touch Screen - - Yes - -
Memory
Memory Card Slot - - - - Yes
Messaging
Email Client - - Yes - -
EMS / Picture Messaging Yes Yes - - -
MMS Yes Yes * Yes - Yes
Text Messaging Templates Yes Yes Yes - Yes
Music
Headphone Jack (3.5mm) - - Yes - -
Music Player - - Yes - Yes *
Stereo Speakers - - Yes - -
Photo & Video
Miracast - - Yes - -
TV Output - - Yes - -
Productivity
Alarm Yes Yes Yes Yes -
Calculator Yes Yes Yes - Yes *
Calendar Yes Yes Yes Yes Yes
To-Do List Yes - - Yes -
Voice Memo Yes Yes Yes - Yes
Software
BREW - Yes * - - -
Games Yes Yes Yes - Yes
Java (J2ME) Yes - - - Yes
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes Yes - Yes Yes
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Motorola W315 Amazon Fire Samsung SPH-S100 Motorola i580
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Motorola W315 Amazon Fire Samsung SPH-S100 Motorola i580

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