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Phone Sanyo SCP-8100 AT&T Vista Samsung SGH-E640 Amazon Fire Nubia Red Magic 3 / 3S
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.5" diag.
18 : 9
? 4.7" diag.
16 : 9
6.7" diag.
19.5 : 9
Display Resolution & Type 120 x 144 pixels
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
Display Refresh ? 60 Hz ? ? 90 Hz
Battery ? 2,450 mAh 800 mAh 2,400 mAh 5,000 mAh
Processor ? 2 GHz MediaTek Helio A22 (MT6761V) ? 2.2 GHz Qualcomm Snapdragon 800 Qualcomm Snapdragon 855+
RAM ? 3 GB ? 2 GB 8 GB *
Storage ? raw hardware 32 GB ? raw hardware 32 GB * 128 GB *
Main Camera Yes 8 megapixel 1 megapixel 13 megapixel 48 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD QCIF (176 x 144) 1080p HD 4K UHD
Front Camera - 5 megapixel - 2 megapixel 16 megapixel
Weight 3.88 oz
(110g)
5.51 oz
(156g)
3.17 oz
(90g)
5.64 oz
(160g)
7.58 oz
(215g)
Dimensions 3.33" x 1.86" x 1.14"
(85 x 47 x 29 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
6.76" x 3.09" x 0.38"
(172 x 79 x 9.7 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) Android
Network Bands

CDMA: 850, 1900

AMPS: 850

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 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 1xRTT LTE (Cat 4) GPRS LTE (Cat 4) LTE (Cat 9)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - Yes - Yes Yes
GPS / Location Yes n/a - Yes n/a
Accessibility
Hearing Aid Compatible - Yes - Yes -
Multiple Languages Yes n/a Yes Yes n/a
TTY/TDD (Digital) Yes - - Yes Yes
Alerts
Extra Display Yes - Yes - -
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - n/a - Yes n/a
NFC - - - Yes -
USB Yes Yes
USB Type C
Yes Yes
Micro-USB
Yes
USB Type C
Wi-Fi - Yes - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a Yes Yes n/a
Ringer ID Yes n/a Yes 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 Yes n/a
Real-Music Ringers - n/a Yes - n/a
Data & Network
Data Tethering Yes n/a - Yes n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes n/a Yes Yes n/a
Input
Predictive Text Entry Yes n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - Yes - Yes Yes
Memory
Memory Card Slot - Yes - - -
Messaging
Email Client - n/a Yes Yes n/a
EMS / Picture Messaging - n/a Yes - n/a
MMS - n/a Yes Yes n/a
Text Messaging Templates - n/a Yes Yes n/a
Music
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player - n/a Yes Yes n/a
Stereo Speakers - - - Yes Yes
Photo & Video
Miracast - - - Yes -
TV Output - - - Yes Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm - n/a Yes Yes n/a
Calculator Yes n/a Yes Yes n/a
Calendar Yes n/a Yes Yes n/a
To-Do List Yes n/a Yes - n/a
Voice Memo Yes n/a Yes Yes n/a
Software
Games Yes n/a Yes Yes n/a
Java (J2ME) Yes n/a Yes - n/a
Voice
Call Screening Yes - - - -
HD Voice - Yes - Yes Yes
Headset Jack (2.5 mm) Yes n/a - - n/a
Speaker Phone - Yes Yes Yes Yes
  Sanyo SCP-8100 AT&T Vista Samsung SGH-E640 Amazon Fire Nubia Red Magic 3 / 3S
  X > < X > < X > < X > < X

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

 
Phone Sanyo SCP-8100 AT&T Vista Samsung SGH-E640 Amazon Fire Nubia Red Magic 3 / 3S

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