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Phone Samsung SGH-X640 Motorola v66i Kyocera Energi K490 / K493 / K494 LG Optimus F7 LG VX-5400
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 4.7" diag.
16 : 9
1.8" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
? 104 x 80 pixels
LCD (STN)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
160 x 128 pixels
(~116 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 800 mAh ? ? 2,540 mAh 1,000 mAh
Processor ? ? ? 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 ?
RAM ? ? ? 1 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 8 GB ? raw hardware
Main Camera Yes - - 8 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - - 1080p HD -
Front Camera - - - 1 megapixel -
Weight 3 oz
(85g)
2.79 oz
(79g)
3.52 oz
(100g)
4.7 oz
(133g)
3.21 oz
(91g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.3" x 1.7" x 0.83"
(84 x 43 x 21.1 mm)
4.45" x 1.89" x 0.91"
(113 x 48 x 23.1 mm)
5.16" x 2.71" x 0.38"
(131 x 69 x 9.7 mm)
3.54" x 1.87" x 0.89"
(90 x 47 x 22.6 mm)
Form Factor Clamshell Clamshell Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

*

4G LTE: 4, 5, 12, 25

CDMA: 850, 1700, 1900

*

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS GPRS 1xRTT LTE (Cat 3) 1xRTT
Features 
Flashlight - - Yes - -
GPS / Location - - Yes n/a Yes
Accessibility
Adjustable Text Size - - - n/a -
Hearing Aid Compatible - - - Yes Yes
Multiple Languages Yes Yes Yes * n/a Yes
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth -
-
-
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - - n/a -
NFC - - - Yes -
USB - Yes Yes Yes -
Wi-Fi - - - Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes - - n/a Yes
Ringer ID Yes Yes Yes n/a -
Voice Dialing - Yes Yes n/a Yes
Customization
Changeable Body Plates - Yes Yes - -
Custom Graphics Yes - Yes n/a Yes
Custom Ringtones Yes Yes Yes n/a Yes
Real-Music Ringers - - - n/a Yes
Data & Network
Data Tethering - Yes Yes n/a -
WAP / Web Browser Yes Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes Yes n/a Yes
Side Keys Yes Yes - Yes Yes
Touch Screen - - - Yes -
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client - - - n/a -
EMS / Picture Messaging Yes Yes Yes n/a Yes
Instant Messaging - - - n/a -
MMS Yes - - n/a Yes
Text Messaging Templates Yes - - n/a -
Music
Headphone Jack (3.5mm) - - - Yes -
Music Player - - - n/a -
Photo & Video
DLNA - - - Yes -
Miracast - - - Yes -
TV Output - - - Yes -
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List Yes - - n/a -
Voice Memo Yes Yes - n/a Yes
Software
BREW - - Yes n/a Yes
Games Yes Yes Yes n/a Yes
Java (J2ME) Yes Yes - n/a -
Voice
Headset Jack (2.5 mm) Yes Yes Yes n/a Yes
Speaker Phone Yes - - Yes Yes
  * Some versions only
  Samsung SGH-X640 Motorola v66i Kyocera Energi K490 / K493 / K494 LG Optimus F7 LG VX-5400
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Phone Samsung SGH-X640 Motorola v66i Kyocera Energi K490 / K493 / K494 LG Optimus F7 LG VX-5400

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