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Phone Ericsson R520 Coolpad Defiant Samsung SCH-A610 BlackBerry Curve 8300 Asus ZenFone 4
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
? ? 5.5" diag.
16 : 9
Display Resolution & Type ? 480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? 60 Hz
Battery ? 2,450 mAh 1,300 mAh ? 3,300 mAh
Processor ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ? ? 2.2 GHz Qualcomm Snapdragon 630
RAM ? 1 GB ? ? 4 GB
Storage ? raw hardware 8 GB ? raw hardware ? raw hardware 64 GB
Main Camera - 5 megapixel Yes 2 megapixel 12 megapixel
Wide Camera - - - - Yes
Tele Camera - - - - -
Video Capture - 720p HD - - 4K UHD
Front Camera - 2 megapixel - - 8 megapixel
Weight 4.23 oz
(120g)
6.5 oz
(184g)
4.23 oz
(120g)
3.92 oz
(111g)
5.47 oz
(155g)
Dimensions 5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
3.5" x 1.9" x 0.9"
(89 x 48 x 22.9 mm)
4.2" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
6.12" x 2.96" x 0.3"
(155 x 75 x 7.7 mm)
Form Factor Slab Slab Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) BlackBerry OS Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 4) 1xRTT EDGE LTE (Cat 12)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - Yes - - Yes
GPS / Location - n/a Yes n/a n/a
Accessibility
Adjustable Text Size - n/a - n/a n/a
Hearing Aid Compatible - Yes - - Yes
Multiple Languages Yes n/a Yes n/a n/a
TTY/TDD (Digital) - Yes - Yes -
Alerts
Ringer Profiles Yes - - Yes -
Connectivity
Bluetooth Yes
HSP, Sync, OPP, DUN
Yes
Classic Audio
- Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - - -
NFC - - - - Yes
USB - Yes
Micro-USB
- Yes Yes
USB Type C
Wi-Fi - Yes
4 (802.11 b,g,n)
- - Yes
5 (802.11 a,ac,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 Yes n/a Yes n/a n/a
Real-Music Ringers - n/a - n/a n/a
Data & Network
Data Tethering Yes n/a Yes n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes n/a Yes n/a n/a
Input
Predictive Text Entry Yes n/a Yes n/a n/a
Side Keys Yes 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
EMS / Picture Messaging - n/a Yes n/a n/a
Instant Messaging - 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 Yes
Music Player - n/a - n/a n/a
Photo & Video
Miracast - - - - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes n/a Yes n/a n/a
Calculator Yes n/a Yes n/a n/a
Calendar Yes n/a Yes n/a n/a
To-Do List - n/a Yes n/a n/a
Voice Memo Yes n/a Yes n/a n/a
Software
BREW - n/a Yes n/a n/a
Games Yes n/a Yes n/a n/a
Java (J2ME) - n/a - n/a n/a
Voice
Headset Jack (2.5 mm) - n/a Yes n/a n/a
Push-To-Talk - - - Yes * -
Speaker Phone Yes Yes - Yes Yes
  * Some versions only
  Ericsson R520 Coolpad Defiant Samsung SCH-A610 BlackBerry Curve 8300 Asus ZenFone 4
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson R520 Coolpad Defiant Samsung SCH-A610 BlackBerry Curve 8300 Asus ZenFone 4

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