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Phone Samsung SGH-X640 LG Stylo 4 Motorola Q9m / Q9c BLU Vivo XL BlackBerry Storm2 9550
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 6.2" diag.
18 : 9
2.4" diag.
4 : 3
5.5" diag.
16 : 9
3.3" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~390 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~267 ppi)
AMOLED
360 x 480 pixels
(~185 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz ?
Battery 800 mAh 3,300 mAh 1,170 mAh 3,150 mAh 1,400 mAh
Processor ? 1.8 GHz Qualcomm Snapdragon 450 PXA27x (ARM920T) 1.3 GHz MediaTek 6753 ?
RAM ? 2 GB * ? 2 GB ?
Storage ? raw hardware 32 GB * ? raw hardware 16 GB ? raw hardware
Main Camera Yes 13 megapixel 1 megapixel 13 megapixel 3 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD ? 1080p HD ?
Front Camera - 5 megapixel - 5 megapixel -
Weight 3 oz
(85g)
6.07 oz
(172g)
4.76 oz
(135g)
5.36 oz
(152g)
5.64 oz
(160g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.31" x 3.06" x 0.33"
(160 x 78 x 8.4 mm)
4.61" x 2.56" x 0.47"
(117 x 65 x 11.9 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)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android Windows Mobile Standard Android BlackBerry OS
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 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

Data Technology GPRS LTE (Cat 6) EVDO r0 LTE (Cat 4) EVDO rA
Features 
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight - 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
M4, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
- Yes
M3 (mostly compatible)
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Ringer Profiles - - Yes - Yes
Connectivity
Bluetooth - Yes Yes Yes Yes
Mobile Hotspot - n/a n/a n/a n/a
NFC - Yes * - - -
USB - Yes
USB Type C
Yes
Mini-USB
Yes
USB Type C
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 b,g,n)
Yes
802.11 b,g
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
Stylus - Yes - - -
Text Keyboard, Hardware - - Yes - -
Touch Screen - 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
Music Player - n/a n/a n/a n/a
Stereo Speakers - - Yes - -
Photo & Video
DLNA - Yes - - -
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
HD Voice - Yes - - -
Headset Jack (2.5 mm) Yes n/a n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 LG Stylo 4 Motorola Q9m / Q9c BLU Vivo XL BlackBerry Storm2 9550
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 LG Stylo 4 Motorola Q9m / Q9c BLU Vivo XL BlackBerry Storm2 9550

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