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Phone Samsung Rugby A837 LG AX-490 Motorola ROKR Z6 Samsung SCH-A990 Nubia Red Magic 3 / 3S
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2" diag.
4 : 3
? ? ? 6.7" diag.
19.5 : 9
Display Resolution & Type 176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
Display Refresh ? ? ? ? 90 Hz
Battery 1,000 mAh 1,100 mAh 750 mAh 1,000 mAh 5,000 mAh
Processor ? ? ? ? Qualcomm Snapdragon 855+
RAM ? ? ? ? 8 GB *
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware 128 GB *
Main Camera 1 megapixel Yes 2 megapixel 3 megapixel 48 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) - ? ? 4K UHD
Front Camera - - - - 16 megapixel
Weight 4.66 oz
(132g)
3.79 oz
(107g)
4.06 oz
(115g)
4.4 oz
(125g)
7.58 oz
(215g)
Dimensions 3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
3.74" x 1.92" x 1"
(95 x 49 x 25.4 mm)
4.15" x 1.79" x 0.63"
(105 x 45 x 16 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.76" x 3.09" x 0.38"
(172 x 79 x 9.7 mm)
Form Factor Clamshell Clamshell Slide Clamshell Slab
Platform / OS (proprietary) (proprietary) (proprietary) (proprietary) Android
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

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

Data Technology HSDPA 3.6 1xRTT EDGE EVDO r0 LTE (Cat 9)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - - Yes Yes
GPS / Location Yes Yes - Yes n/a
Ruggedized Yes - - - -
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
- Yes
M3 (mostly compatible)
-
Multiple Languages Yes Yes Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes Yes - Yes -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
USB Yes Yes Yes Yes Yes
USB Type C
Wi-Fi - - - - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes Yes Yes Yes n/a
Ringer ID Yes Yes Yes Yes n/a
Voice Dialing - Yes - Yes n/a
Customization
Custom Graphics Yes Yes Yes Yes n/a
Custom Ringtones Yes Yes Yes Yes n/a
Real-Music Ringers Yes Yes Yes Yes n/a
Data & Network
Data Tethering Yes Yes Yes Yes n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes Yes Yes Yes n/a
Input
Predictive Text Entry Yes - Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - Yes
Touch Screen - - - - Yes
Capacitive
Memory
Memory Card Slot Yes - Yes Yes -
Messaging
Email Client Yes - Yes - n/a
EMS / Picture Messaging - - Yes Yes n/a
Instant Messaging Yes - Yes - n/a
MMS Yes Yes Yes Yes n/a
Text Messaging Templates Yes Yes Yes Yes n/a
Music
Headphone Jack (3.5mm) - - - - Yes
Music Player Yes - Yes Yes n/a
Stereo Speakers - Yes - Yes Yes
Photo & Video
TV Output - - - Yes Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes Yes Yes Yes n/a
Calculator Yes Yes Yes Yes n/a
Calendar Yes Yes Yes Yes n/a
To-Do List - - Yes - n/a
Voice Memo Yes Yes Yes Yes n/a
Software
BREW - Yes - Yes n/a
Games Yes Yes Yes Yes n/a
Java (J2ME) Yes - Yes - n/a
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) - Yes - - n/a
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Rugby A837 LG AX-490 Motorola ROKR Z6 Samsung SCH-A990 Nubia Red Magic 3 / 3S
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Rugby A837 LG AX-490 Motorola ROKR Z6 Samsung SCH-A990 Nubia Red Magic 3 / 3S

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