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Phone LG Stylo 4 Samsung SGH-X640 Sharp Sidekick LX 2009 Ericsson R520 Motorola Defy (2010)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.2" diag.
18 : 9
? 3.2" diag.
16 : 9
? 3.6" diag.
16 : 9
Display Resolution & Type 1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
854 x 480 pixels
(~306 ppi)
LCD (TFT/TFD)
? 480 x 854 pixels
(~272 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ? 60 Hz
Battery 3,300 mAh 800 mAh 1,250 mAh ? 1,540 mAh
Processor 1.8 GHz Qualcomm Snapdragon 450 ? ? ? 800 MHz TI OMAP3610
RAM 2 GB * ? ? ? ?
Storage 32 GB * ? raw hardware ? raw hardware ? raw hardware ? raw hardware
Main Camera 13 megapixel Yes 3 megapixel - 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD - QVGA (320 x 240) - ?
Front Camera 5 megapixel - - - -
Weight 6.07 oz
(172g)
3 oz
(85g)
5.78 oz
(164g)
4.23 oz
(120g)
4.16 oz
(118g)
Dimensions 6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.12" x 2.36" x 0.63"
(130 x 60 x 16 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4.21" x 2.32" x 0.53"
(107 x 59 x 13.4 mm)
Form Factor Slab Clamshell Swivel Slab Slab
Platform / OS Android (proprietary) (proprietary) (proprietary) Android
Network Bands

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

*

GSM: 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

WCDMA: 1, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 6) GPRS HSPA 7.2 GPRS HSPA 7.2
Features 
Fingerprint Reader Yes
stand-alone
- - - -
Flashlight Yes - - - -
GPS / Location n/a - Yes - n/a
Ruggedized - - - - Yes
Accessibility
Adjustable Text Size n/a - Yes - n/a
Hearing Aid Compatible Yes - Yes - -
Multiple Languages n/a Yes Yes Yes n/a
TTY/TDD (Digital) Yes - - - Yes
Alerts
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
-
Yes
Classic Audio
Yes
HSP, Sync, OPP, DUN
Yes
Classic Audio
Infrared (IR) - - - Yes -
NFC Yes * - - - -
USB Yes
USB Type C
- Yes - Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - - Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a Yes Yes - n/a
Ringer ID n/a Yes Yes - n/a
Voice Dialing n/a - - Yes n/a
Customization
Custom Graphics n/a Yes Yes - n/a
Custom Ringtones n/a Yes Yes Yes n/a
Real-Music Ringers n/a - Yes - n/a
Data & Network
Data Tethering n/a - - Yes n/a
WAP / Web Browser n/a Yes Yes Yes n/a
Input
Predictive Text Entry n/a Yes - Yes n/a
Side Keys Yes Yes Yes Yes Yes
Stylus Yes - - - -
Text Keyboard, Hardware - - Yes - -
Touch Screen Yes - - - Yes
Memory
Memory Card Slot Yes - Yes - Yes
Messaging
Email Client n/a - Yes - n/a
EMS / Picture Messaging n/a Yes - - n/a
Instant Messaging n/a - Yes - n/a
MMS n/a Yes Yes - n/a
Text Messaging Templates n/a Yes Yes Yes n/a
Music
FM Radio Yes - - - Yes
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player n/a - Yes - n/a
Photo & Video
DLNA Yes - - - Yes
Productivity
Alarm n/a Yes Yes Yes n/a
Calculator n/a Yes - Yes n/a
Calendar n/a Yes Yes Yes n/a
To-Do List n/a Yes Yes - n/a
Voice Memo n/a Yes - Yes n/a
Software
Games n/a Yes Yes Yes n/a
Java (J2ME) n/a Yes Yes - n/a
Voice
HD Voice Yes - - - -
Headset Jack (2.5 mm) n/a Yes - - n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  LG Stylo 4 Samsung SGH-X640 Sharp Sidekick LX 2009 Ericsson R520 Motorola Defy (2010)
  X > < X > < X > < X > < X

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

 
Phone LG Stylo 4 Samsung SGH-X640 Sharp Sidekick LX 2009 Ericsson R520 Motorola Defy (2010)

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