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Phone Casio G'zOne Rock Samsung Galaxy Attain 4G Samsung SCH-U340 / Snap Nubia Red Magic 3 / 3S Samsung SGH-A127
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
3.5" diag.
5 : 3
? 6.7" diag.
19.5 : 9
?
Display Resolution & Type 240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
128 x 160 pixels
LCD (STN)
Display Refresh ? 60 Hz ? 90 Hz ?
Battery 1,150 mAh 1,650 mAh 1,000 mAh 5,000 mAh 800 mAh
Processor ? ? ? Qualcomm Snapdragon 855+ ?
RAM ? 512 MB ? 8 GB * ?
Storage ? raw hardware ? raw hardware ? raw hardware 128 GB * ? raw hardware
Main Camera 2 megapixel 3 megapixel Yes 48 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? WVGA / 480p - 4K UHD -
Front Camera - 1 megapixel - 16 megapixel -
Weight 4.4 oz
(125g)
4.2 oz
(119g)
2.82 oz
(80g)
7.58 oz
(215g)
2.86 oz
(81g)
Dimensions 4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
4.57" x 2.38" x 0.46"
(116 x 60 x 11.7 mm)
3.5" x 1.8" x 0.77"
(89 x 46 x 19.6 mm)
6.76" x 3.09" x 0.38"
(172 x 79 x 9.7 mm)
3.39" x 1.67" x 0.76"
(86 x 42 x 19.3 mm)
Form Factor Clamshell Slab Clamshell Slab Clamshell
Platform / OS (proprietary) Android (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

4G LTE: 2, 4

CDMA: 850, 1700, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8, 19

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

Data Technology EVDO rA LTE (Cat 3) - LTE (Cat 9) GPRS
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight Yes - - Yes -
GPS / Location Yes n/a Yes n/a -
Ruggedized Yes - - - -
Water-Resistant Yes - - - -
Accessibility
Hearing Aid Compatible Yes Yes Yes - -
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes - Yes - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
-
Yes
Classic Audio
-
USB Yes Yes
Micro-USB
- Yes
USB Type C
-
Wi-Fi - Yes - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a -
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing Yes n/a Yes n/a -
Customization
Custom Graphics Yes n/a - n/a Yes
Custom Ringtones Yes n/a - n/a Yes
Real-Music Ringers Yes n/a - n/a -
Data & Network
Data Tethering Yes n/a - n/a -
Dual-SIM - - - Yes -
WAP / Web Browser Yes n/a - n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes - Yes -
Memory
Memory Card Slot Yes Yes - - -
Messaging
Email Client Yes n/a - n/a -
Instant Messaging Yes n/a Yes n/a -
MMS Yes n/a Yes n/a Yes
Text Messaging Templates Yes n/a Yes n/a Yes
Music
Headphone Jack (3.5mm) - Yes - Yes -
Music Player Yes n/a - n/a -
Stereo Speakers - - - Yes -
Photo & Video
DLNA - Yes - - -
TV Output - - - Yes -
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List - n/a - n/a Yes
Voice Memo Yes n/a - n/a Yes
Software
BREW Yes n/a - n/a -
Games Yes n/a - n/a Yes
Java (J2ME) - n/a - n/a Yes
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) Yes n/a Yes n/a -
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  Casio G'zOne Rock Samsung Galaxy Attain 4G Samsung SCH-U340 / Snap Nubia Red Magic 3 / 3S Samsung SGH-A127
  X > < X > < X > < X > < X

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

 
Phone Casio G'zOne Rock Samsung Galaxy Attain 4G Samsung SCH-U340 / Snap Nubia Red Magic 3 / 3S Samsung SGH-A127

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