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Phone Samsung Jitterbug J / SPH-A310 Samsung Galaxy S6 (GSM) Samsung Glyde U940 BlackBerry 7750 Nubia RedMagic 5S
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
5.1" diag.
16 : 9
2.8" diag.
16.5 : 9
? 6.7" diag.
19.5 : 9
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (Color)
1440 x 2560 pixels
(~576 ppi)
AMOLED
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
1080 x 2340 pixels
(~388 ppi)
AMOLED
Display Refresh ? 60 Hz ? ? 144 Hz
Battery ? 2,550 mAh 1,000 mAh ? 4,500 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 ? ? Qualcomm Snapdragon 865
RAM ? 3 GB ? ? 8 GB *
Storage ? raw hardware 32 GB * ? raw hardware ? raw hardware 128 GB *
Main Camera - 16 megapixel 2 megapixel - 64 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture - 4K UHD QVGA (320 x 240) - 4K UHD
Front Camera - 5 megapixel - - 8 megapixel
Weight 3.99 oz
(113g)
4.87 oz
(138g)
4.2 oz
(119g)
5.01 oz
(142g)
7.76 oz
(220g)
Dimensions 3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
6.64" x 3.07" x 0.38"
(169 x 78 x 9.8 mm)
Form Factor Clamshell Slab Slide Slab Slab
Platform / OS (proprietary) Android (proprietary) BlackBerry OS Android
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

CDMA: 850, 1900

5G: 41, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 26, 34, 38, 40, 41

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

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology - LTE (Cat 6) EVDO r0 1xRTT NR (5G)
Features 
Fingerprint Reader - Yes - - Yes
Flashlight - Yes - - Yes
GPS / Location Yes n/a Yes n/a n/a
VR-ready - Yes - - -
Accessibility
Hearing Aid Compatible Yes Yes Yes - -
Multiple Languages - n/a Yes n/a n/a
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Extra Display Yes - - - -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
- Yes
Classic Audio
Infrared (IR) - Yes - - -
MirrorLink - Yes - - -
NFC - Yes - - -
USB - Yes
Micro-USB
Yes Yes Yes
USB Type C
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- - Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID - n/a Yes n/a n/a
Ringer ID - n/a Yes n/a n/a
Voice Dialing Yes n/a Yes n/a n/a
Customization
Custom Graphics - n/a Yes n/a n/a
Custom Ringtones - n/a Yes n/a n/a
Real-Music Ringers - n/a Yes n/a n/a
Data & Network
Data Tethering - n/a Yes n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser - n/a Yes n/a n/a
Input
Predictive Text Entry - n/a Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes Yes -
Touch Screen - Yes Yes - Yes
Memory
Memory Card Slot - - Yes - -
Messaging
Email Client - n/a - n/a n/a
MMS - n/a Yes n/a n/a
Text Messaging Templates Yes n/a Yes n/a n/a
Music
Headphone Jack (3.5mm) - Yes - - Yes
Music Player - n/a Yes n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
TV Output - Yes - - Yes
Power
Fast Charging - Yes - - Yes
Wireless Charging - Yes - - -
Productivity
Alarm - n/a Yes n/a n/a
Calculator - n/a Yes n/a n/a
Calendar - n/a Yes n/a n/a
To-Do List - n/a - n/a n/a
Software
BREW - n/a Yes n/a n/a
Games - n/a Yes n/a n/a
Java (J2ME) - n/a - n/a n/a
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) - n/a Yes n/a n/a
Speaker Phone Yes Yes Yes - Yes
  Samsung Jitterbug J / SPH-A310 Samsung Galaxy S6 (GSM) Samsung Glyde U940 BlackBerry 7750 Nubia RedMagic 5S
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Jitterbug J / SPH-A310 Samsung Galaxy S6 (GSM) Samsung Glyde U940 BlackBerry 7750 Nubia RedMagic 5S

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