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Phone Samsung SCH-A990 Samsung Galaxy S8 Casio G'zOne Ravine Motorola Charm
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 5.8" diag.
18.5 : 9
2.2" diag.
4 : 3
2.8" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
1440 x 2960 pixels
(~568 ppi)
AMOLED
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~143 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz
Battery 1,000 mAh 3,000 mAh 1,140 mAh 1,170 mAh
Processor ? 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) ? 720 MHz TI OMAP3410
RAM ? 4 GB ? ?
Storage ? raw hardware 64 GB ? raw hardware ? raw hardware
Main Camera 3 megapixel 12 megapixel 3 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 4K UHD ? ?
Front Camera - 8 megapixel - -
Weight 4.4 oz
(125g)
5.47 oz
(155g)
4.6 oz
(130g)
3.88 oz
(110g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
5.86" x 2.68" x 0.31"
(149 x 68 x 8 mm)
4.3" x 2.1" x 0.9"
(109 x 53 x 22.9 mm)
3.87" x 2.65" x 0.45"
(98 x 67 x 11.4 mm)
Form Factor Clamshell Slab Clamshell Slab
Platform / OS (proprietary) Android (proprietary) Android
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

*

Data Technology EVDO r0 LTE (Cat 16) EVDO rA HSDPA 3.6
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight Yes Yes Yes -
GPS / Location Yes n/a Yes n/a
Ruggedized - - Yes -
VR-ready - Yes - -
Water-Resistant - Yes
IPX8 (SCUBA)
Yes -
Accessibility
Adjustable Text Size - n/a Yes n/a
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
-
Multiple Languages Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - Yes -
Connectivity
Bluetooth Yes Yes Yes Yes
MirrorLink - Yes - -
NFC - Yes - -
USB Yes 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 Yes n/a Yes n/a
Ringer ID Yes n/a Yes n/a
Voice Dialing Yes n/a Yes n/a
Customization
Custom Graphics Yes n/a Yes n/a
Custom Ringtones Yes n/a Yes n/a
Real-Music Ringers Yes n/a Yes n/a
Data & Network
Data Tethering Yes n/a Yes n/a
WAP / Web Browser Yes n/a Yes n/a
Input
Predictive Text Entry Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen - Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client - n/a Yes n/a
EMS / Picture Messaging Yes n/a Yes n/a
Instant Messaging - n/a Yes n/a
MMS Yes n/a Yes n/a
Text Messaging Templates Yes n/a Yes n/a
Music
Headphone Jack (3.5mm) - Yes - Yes
Music Player Yes n/a Yes n/a
Stereo Speakers Yes - - -
Photo & Video
TV Output Yes - - -
Power
Fast Charging - Yes - -
Wireless Charging - Yes - -
Productivity
Alarm Yes n/a Yes n/a
Calculator Yes n/a Yes n/a
Calendar Yes n/a Yes n/a
Voice Memo Yes n/a Yes n/a
Software
BREW Yes n/a Yes n/a
Games Yes n/a Yes n/a
Voice
HD Voice - Yes - -
Headset Jack (2.5 mm) - n/a Yes n/a
Push-To-Talk - - Yes -
Speaker Phone Yes Yes Yes Yes
  Samsung SCH-A990 Samsung Galaxy S8 Casio G'zOne Ravine Motorola Charm
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A990 Samsung Galaxy S8 Casio G'zOne Ravine Motorola Charm

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