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Phone Ericsson R520 Palm Treo 600 (GSM) Coolpad Quattro 4G Google Pixel 3a XL Sony Ericsson Z600
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 4" diag.
5 : 3
6" diag.
18 : 9
?
Display Resolution & Type ? 160 x 160 pixels
LCD (Color)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~402 ppi)
AMOLED
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery ? ? 1,600 mAh 3,700 mAh ?
Processor ? ? ? 2 GHz Qualcomm Snapdragon 670 ?
RAM ? ? ? 4 GB ?
Storage ? raw hardware ? raw hardware 512 MB 64 GB ? raw hardware
Main Camera - Yes 3 megapixel 12 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - VGA (640 x 480) 4K UHD -
Front Camera - - Yes 8 megapixel -
Weight 4.23 oz
(120g)
5.92 oz
(168g)
3.31 oz
(94g)
5.89 oz
(167g)
3.88 oz
(110g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4.41" x 2.36" x 0.87"
(112 x 60 x 22.1 mm)
4.96" x 2.6" x 0.51"
(126 x 66 x 13 mm)
6.3" x 3" x 0.3"
(160 x 76 x 7.6 mm)
3.54" x 1.89" x 1.1"
(90 x 48 x 27.9 mm)
Form Factor Slab Slab Slab Slab Clamshell
Platform / OS (proprietary) Palm OS Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4

CDMA: 850, 1700, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology GPRS GPRS LTE (Cat 3) LTE (Cat 11) GPRS
Features 
Barometer - - - Yes -
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location - n/a n/a n/a -
Accessibility
Hearing Aid Compatible - - Yes Yes -
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Infrared (IR) Yes Yes - - Yes
Mobile Hotspot - n/a n/a n/a -
NFC - - - Yes -
USB - Yes Yes Yes
USB Type C
Yes
Wi-Fi - - Yes Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID - n/a n/a n/a Yes
Ringer ID - n/a n/a n/a Yes
Voice Dialing Yes n/a n/a n/a Yes
Customization
Changeable Body Plates - - - - Yes
Custom Graphics - n/a n/a n/a Yes
Custom Ringtones Yes n/a n/a n/a Yes
Real-Music Ringers - n/a n/a n/a -
Data & Network
Data Tethering Yes n/a n/a n/a Yes
WAP / Web Browser Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen - Yes Yes Yes -
Memory
Memory Card Slot - Yes Yes - -
Messaging
Email Client - n/a n/a n/a Yes
EMS / Picture Messaging - n/a n/a n/a Yes
Instant Messaging - n/a n/a n/a -
MMS - n/a n/a n/a Yes
Text Messaging Templates Yes n/a n/a n/a Yes
Music
Headphone Jack (3.5mm) - - Yes Yes -
Music Player - n/a n/a n/a -
Stereo Speakers - - - Yes -
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List - n/a n/a n/a Yes
Voice Memo Yes n/a n/a n/a Yes
Software
Games Yes n/a n/a n/a Yes
Java (J2ME) - n/a n/a n/a Yes
Voice
Call Screening - - - Yes -
HD Voice - - - Yes -
Headset Jack (2.5 mm) - n/a n/a n/a -
Speaker Phone Yes Yes Yes Yes -
  Ericsson R520 Palm Treo 600 (GSM) Coolpad Quattro 4G Google Pixel 3a XL Sony Ericsson Z600
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson R520 Palm Treo 600 (GSM) Coolpad Quattro 4G Google Pixel 3a XL Sony Ericsson Z600

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