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Phone Ericsson R520 Motorola Moto z4 AT&T Vista Pantech Duo C810
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.4" diag.
19.5 : 9
5.5" diag.
18 : 9
2.2" diag.
4 : 3
Display Resolution & Type ? 1080 x 2340 pixels
(~403 ppi)
AMOLED
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ?
Battery ? 3,600 mAh 2,450 mAh 1,320 mAh
Processor ? 2 GHz Qualcomm Snapdragon 675 2 GHz MediaTek Helio A22 (MT6761V) ARM 920t PXA27x
RAM ? 4 GB 3 GB ?
Storage ? raw hardware 128 GB 32 GB ? raw hardware
Main Camera - 48 megapixel 8 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 4K UHD 1080p HD QVGA (320 x 240)
Front Camera - 25 megapixel 5 megapixel -
Weight 4.23 oz
(120g)
6 oz
(170g)
5.51 oz
(156g)
3.88 oz
(110g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
6.22" x 2.96" x 0.29"
(158 x 75 x 7.4 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
Form Factor Slab Slab Slab Slide
Platform / OS (proprietary) Android Android Windows Mobile Standard
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

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

WCDMA: 1, 2, 4, 5, 8

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 12) LTE (Cat 4) HSDPA 1.8
Features 
Fingerprint Reader - Yes - -
Flashlight - Yes Yes -
Water-Resistant - Yes - -
Accessibility
Hearing Aid Compatible - Yes Yes -
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) - Yes - -
Alerts
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) Yes - - -
NFC - Yes - -
USB - Yes
USB Type C
Yes
USB Type C
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes -
Contacts
Picture ID - n/a n/a n/a
Ringer ID - n/a n/a n/a
Voice Dialing Yes n/a n/a n/a
Customization
Custom Graphics - n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers - n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen - Yes Yes -
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - n/a n/a n/a
Instant Messaging - n/a n/a n/a
MMS - n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - Yes Yes -
Music Player - n/a n/a n/a
Power
Fast Charging - Yes - -
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List - n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games Yes n/a n/a n/a
Voice
HD Voice - Yes Yes -
Speaker Phone Yes Yes Yes Yes
  Ericsson R520 Motorola Moto z4 AT&T Vista Pantech Duo C810
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Phone Ericsson R520 Motorola Moto z4 AT&T Vista Pantech Duo C810

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