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Phone Samsung SCH-A990 LG Stylo 4 Samsung M520 Sharp Sidekick LX 2009
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.2" diag.
18 : 9
2.1" diag.
4 : 3
3.2" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
854 x 480 pixels
(~306 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 1,000 mAh 3,300 mAh ? 1,250 mAh
Processor ? 1.8 GHz Qualcomm Snapdragon 450 ? ?
RAM ? 2 GB * ? ?
Storage ? raw hardware 32 GB * ? raw hardware ? raw hardware
Main Camera 3 megapixel 13 megapixel 1 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 1080p HD ? QVGA (320 x 240)
Front Camera - 5 megapixel - -
Weight 4.4 oz
(125g)
6.07 oz
(172g)
2.75 oz
(78g)
5.78 oz
(164g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
5.12" x 2.36" x 0.63"
(130 x 60 x 16 mm)
Form Factor Clamshell Slab Slide Swivel
Platform / OS (proprietary) Android (proprietary) (proprietary)
Network Bands

CDMA: 850, 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

*

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 LTE (Cat 6) EVDO r0 HSPA 7.2
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight Yes Yes - -
GPS / Location Yes n/a Yes Yes
Accessibility
Adjustable Text Size - n/a - Yes
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4 (very compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes n/a Yes 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 Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes n/a Yes Yes
Ringer ID Yes n/a Yes Yes
Voice Dialing Yes n/a Yes -
Customization
Custom Graphics Yes n/a Yes Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers Yes n/a - Yes
Data & Network
Data Tethering Yes n/a Yes -
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes -
Side Keys Yes Yes Yes Yes
Stylus - Yes - -
Text Keyboard, Hardware - - - Yes
Touch Screen - Yes
Capacitive
- -
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client - n/a - Yes
EMS / Picture Messaging Yes n/a - -
Instant Messaging - n/a - Yes
MMS Yes n/a - Yes
Text Messaging Templates Yes n/a Yes Yes
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - Yes - Yes
Music Player Yes n/a Yes Yes
Stereo Speakers Yes - - -
Photo & Video
DLNA - Yes - -
TV Output Yes - - -
Productivity
Alarm Yes n/a Yes Yes
Calculator Yes n/a Yes -
Calendar Yes n/a Yes Yes
To-Do List - n/a Yes Yes
Voice Memo Yes n/a Yes -
Software
BREW Yes n/a - -
Games Yes n/a Yes Yes
Java (J2ME) - n/a Yes Yes
Voice
HD Voice - Yes - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-A990 LG Stylo 4 Samsung M520 Sharp Sidekick LX 2009
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Phone Samsung SCH-A990 LG Stylo 4 Samsung M520 Sharp Sidekick LX 2009

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