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Phone Samsung SGH-X640 BLU Vivo XL BlackBerry Storm2 9550 Coolpad Defiant LG K30 2018 (CDMA)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.5" diag.
16 : 9
3.3" diag.
4 : 3
5" diag.
16 : 9
5.3" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
720 x 1280 pixels
(~267 ppi)
AMOLED
360 x 480 pixels
(~185 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~277 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz 60 Hz
Battery 800 mAh 3,150 mAh 1,400 mAh 2,450 mAh 3,000 mAh
Processor ? 1.3 GHz MediaTek 6753 ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) 1.5 GHz MediaTek MT6750T
RAM ? 2 GB ? 1 GB 2 GB
Storage ? raw hardware 16 GB ? raw hardware 8 GB 32 GB
Main Camera Yes 13 megapixel 3 megapixel 5 megapixel 13 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD ? 720p HD 1080p HD
Front Camera - 5 megapixel - 2 megapixel 5 megapixel
Weight 3 oz
(85g)
5.36 oz
(152g)
5.64 oz
(160g)
6.5 oz
(184g)
5.93 oz
(168g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.11" x 3.02" x 0.3"
(155 x 77 x 7.5 mm)
4.43" x 2.45" x 0.55"
(113 x 62 x 14 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
5.85" x 2.95" x 0.33"
(149 x 75 x 8.4 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android BlackBerry OS Android Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 7, 12, 17

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 13, 25, 26, 41

WCDMA: 1, 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 4) EVDO rA LTE (Cat 4) LTE (Cat 4)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - Yes - Yes Yes
GPS / Location - n/a n/a n/a n/a
Accessibility
Adjustable Text Size - n/a n/a n/a n/a
Hearing Aid Compatible - - Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
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 Yes Yes Yes
Mobile Hotspot - n/a n/a n/a n/a
USB - Yes
USB Type C
Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing - n/a n/a n/a n/a
Customization
Custom Graphics Yes 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 - 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
Capacitive
Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client - n/a n/a n/a n/a
EMS / Picture Messaging Yes n/a n/a n/a n/a
Instant Messaging - n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) - Yes Yes Yes Yes
Music Player - n/a n/a n/a n/a
Power
Fast 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
To-Do List 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
Java (J2ME) Yes n/a n/a n/a n/a
Voice
Headset Jack (2.5 mm) Yes n/a n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 BLU Vivo XL BlackBerry Storm2 9550 Coolpad Defiant LG K30 2018 (CDMA)
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Phone Samsung SGH-X640 BLU Vivo XL BlackBerry Storm2 9550 Coolpad Defiant LG K30 2018 (CDMA)

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