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Phone Ericsson R520 Samsung Galaxy S 4 mini (GSM) Google Pixel 5a Samsung Galaxy S6 edge (GSM) Samsung Galaxy Attain 4G
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 4.3" diag.
16 : 9
6.3" diag.
20 : 9
5.1" diag.
16 : 9
3.5" diag.
5 : 3
Display Resolution & Type ? 540 x 960 pixels
(~256 ppi)
AMOLED
1080 x 2400 pixels
(~415 ppi)
AMOLED
1440 x 2560 pixels
(~576 ppi)
AMOLED
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz 60 Hz 60 Hz
Battery ? 1,900 mAh 4,680 mAh 2,600 mAh 1,650 mAh
Processor ? 1.7 GHz Qualcomm Snapdragon MSM8930 Pro (MSM8930AB) 2.4 GHz Qualcomm Snapdragon 765G 2.1 GHz Samsung Exynos ?
RAM ? 1.5 GB 6 GB 3 GB 512 MB
Storage ? raw hardware 16 GB 128 GB 32 GB * ? raw hardware
Main Camera - 8 megapixel 12 megapixel 16 megapixel 3 megapixel
Wide Camera - - 16 megapixel - -
Tele Camera - - - - -
Video Capture - 1080p HD 4K UHD 4K UHD WVGA / 480p
Front Camera - 2 megapixel 8 megapixel 5 megapixel 1 megapixel
Weight 4.23 oz
(120g)
3.77 oz
(107g)
6.53 oz
(185g)
4.66 oz
(132g)
4.2 oz
(119g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
4.9" x 2.41" x 0.35"
(124 x 61 x 8.9 mm)
6.1" x 2.9" x 0.3"
(155 x 74 x 7.6 mm)
5.59" x 2.76" x 0.28"
(142 x 70 x 7 mm)
4.57" x 2.38" x 0.46"
(116 x 60 x 11.7 mm)
Form Factor Slab Slab Slab Slab Slab
Platform / OS (proprietary) Android Android Android Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

5G: 1, 2, 5, 12, 25, 28, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

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

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4

CDMA: 850, 1700, 1900

Data Technology GPRS LTE (Cat 3) NR (5G) LTE (Cat 6) LTE (Cat 3)
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes
stand-alone
Yes -
Flashlight - - Yes Yes -
GPS / Location - n/a n/a n/a n/a
VR-ready - - - Yes -
Water-Resistant - - Yes
IPX7 (snorkeling)
- -
Accessibility
Adjustable Text Size - n/a n/a n/a n/a
Hearing Aid Compatible - Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes
HSP, Sync, OPP, DUN
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes Yes - Yes -
MirrorLink - - - Yes -
Mobile Hotspot - n/a n/a n/a n/a
NFC - Yes Yes Yes -
USB - Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - Yes
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
Contacts
Picture ID - n/a n/a n/a n/a
Ringer ID - n/a n/a n/a n/a
Voice Dialing Yes n/a n/a n/a n/a
Customization
Custom Graphics - n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers - n/a n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a n/a
Dual-SIM - - Yes - -
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes Yes Yes Yes
Memory
Memory Card Slot - Yes - - Yes
Messaging
Email Client - n/a n/a n/a n/a
Instant Messaging - n/a n/a n/a n/a
MMS - n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
Headphone Jack (3.5mm) - Yes Yes Yes Yes
Music Player - n/a n/a n/a n/a
Stereo Speakers - - Yes - -
Photo & Video
DLNA - Yes - Yes Yes
Miracast - Yes - Yes -
TV Output - - - Yes -
Power
Fast Charging - - Yes - -
Wireless Charging - - - Yes -
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
Games Yes n/a n/a n/a n/a
Voice
Call Screening - - Yes - -
HD Voice - Yes Yes Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Ericsson R520 Samsung Galaxy S 4 mini (GSM) Google Pixel 5a Samsung Galaxy S6 edge (GSM) Samsung Galaxy Attain 4G
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson R520 Samsung Galaxy S 4 mini (GSM) Google Pixel 5a Samsung Galaxy S6 edge (GSM) Samsung Galaxy Attain 4G

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