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Phone Samsung SGH-X640 Samsung SGH-T719 LG Stylo 4 Motorola Defy (2010) Sharp Sidekick LX 2009
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 6.2" diag.
18 : 9
3.6" diag.
16 : 9
3.2" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~272 ppi)
LCD (TFT/TFD)
854 x 480 pixels
(~306 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery 800 mAh ? 3,300 mAh 1,540 mAh 1,250 mAh
Processor ? ? 1.8 GHz Qualcomm Snapdragon 450 800 MHz TI OMAP3610 ?
RAM ? ? 2 GB * ? ?
Storage ? raw hardware ? raw hardware 32 GB * ? raw hardware ? raw hardware
Main Camera Yes 1 megapixel 13 megapixel 5 megapixel 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - QCIF (176 x 144) 1080p HD ? QVGA (320 x 240)
Front Camera - - 5 megapixel - -
Weight 3 oz
(85g)
3.5 oz
(99g)
6.07 oz
(172g)
4.16 oz
(118g)
5.78 oz
(164g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.7" x 2" x 0.72"
(94 x 51 x 18.3 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
4.21" x 2.32" x 0.53"
(107 x 59 x 13.4 mm)
5.12" x 2.36" x 0.63"
(130 x 60 x 16 mm)
Form Factor Clamshell Clamshell Slab Slab Swivel
Platform / OS (proprietary) (proprietary) Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology GPRS EDGE LTE (Cat 6) HSPA 7.2 HSPA 7.2
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - Yes Yes - -
GPS / Location - - n/a n/a Yes
Ruggedized - - - Yes -
Accessibility
Adjustable Text Size - - n/a n/a Yes
Hearing Aid Compatible - - Yes - Yes
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Extra Display - Yes - - -
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - Yes Yes Yes Yes
NFC - - Yes * - -
USB - Yes Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes Yes n/a n/a Yes
Ringer ID Yes Yes n/a n/a Yes
Voice Dialing - Yes n/a n/a -
Customization
Custom Graphics Yes Yes n/a n/a Yes
Custom Ringtones Yes Yes n/a n/a Yes
Real-Music Ringers - - n/a n/a Yes
Data & Network
Data Tethering - Yes n/a n/a -
WAP / Web Browser Yes Yes n/a n/a Yes
Input
Predictive Text Entry Yes Yes n/a n/a -
Side Keys Yes Yes Yes Yes Yes
Stylus - - Yes - -
Text Keyboard, Hardware - Yes - - Yes
Touch Screen - - Yes Yes -
Memory
Memory Card Slot - - Yes Yes Yes
Messaging
Email Client - Yes n/a n/a Yes
EMS / Picture Messaging Yes - n/a n/a -
Instant Messaging - Yes n/a n/a Yes
MMS Yes Yes n/a n/a Yes
Text Messaging Templates Yes Yes n/a n/a Yes
Music
FM Radio - - Yes Yes -
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - - n/a n/a Yes
Photo & Video
DLNA - - Yes Yes -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a -
Calendar Yes Yes n/a n/a Yes
To-Do List Yes - n/a n/a Yes
Voice Memo Yes Yes n/a n/a -
Software
Games Yes Yes n/a n/a Yes
Java (J2ME) Yes Yes n/a n/a Yes
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes - n/a n/a -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Samsung SGH-T719 LG Stylo 4 Motorola Defy (2010) Sharp Sidekick LX 2009
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Samsung SGH-T719 LG Stylo 4 Motorola Defy (2010) Sharp Sidekick LX 2009

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