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Phone Motorola RAZR V3m Sony Ericsson K850 Microsoft Lumia 640 Sony Xperia XZ2 Samsung SGH-A727
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size ? 2.2" diag.
4 : 3
5" diag.
16 : 9
5.7" diag.
18 : 9
?
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~424 ppi)
LCD (TFT/TFD)
220 x 176 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 780 mAh ? 2,500 mAh 3,180 mAh ?
Processor ? ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) Qualcomm Snapdragon 845 ?
RAM ? ? 1 GB 4 GB ?
Storage ? raw hardware ? raw hardware 8 GB 64 GB ? raw hardware
Main Camera 1 megapixel 5 megapixel 8 megapixel 19 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? ? 1080p HD 4K UHD QCIF (176 x 144)
Front Camera - - 1 megapixel 5 megapixel -
Weight 3.49 oz
(99g)
4.2 oz
(119g)
5.11 oz
(145g)
6.98 oz
(198g)
2.82 oz
(80g)
Dimensions 3.9" x 2.1" x 0.57"
(99 x 53 x 14.5 mm)
4" x 1.9" x 0.7"
(102 x 48 x 17.8 mm)
5.56" x 2.84" x 0.35"
(141 x 72 x 8.9 mm)
6.02" x 2.83" x 0.44"
(153 x 72 x 11.1 mm)
4.51" x 2.01" x 0.35"
(115 x 51 x 8.9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) Windows Android (proprietary)
Network Bands

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 HSDPA 3.6 LTE (Cat 4) LTE (Cat 18) HSDPA 1.8
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location Yes - n/a n/a -
Water-Resistant - - - Yes
IPX5 (direct spray)
-
Accessibility
Adjustable Text Size - - n/a n/a -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
-
Multiple Languages Yes Yes n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display Yes - - - -
Ringer Profiles - Yes - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot - - n/a n/a -
NFC - - Yes Yes -
USB Yes
Mini-USB
Yes Yes
Micro-USB
Yes
USB Type C
Yes
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes Yes n/a n/a Yes
Ringer ID Yes Yes n/a n/a Yes
Voice Dialing Yes Yes n/a n/a -
Customization
Custom Graphics Yes Yes n/a n/a Yes
Custom Ringtones Yes Yes n/a n/a Yes
Real-Music Ringers Yes Yes n/a n/a Yes
Data & Network
Data Tethering Yes Yes n/a n/a Yes
Dual-SIM - - - Yes -
WAP / Web Browser Yes Yes n/a n/a Yes
Input
Predictive Text Entry Yes Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client - Yes n/a n/a Yes
EMS / Picture Messaging Yes - n/a n/a -
Instant Messaging Yes * - n/a n/a Yes
MMS Yes Yes n/a n/a Yes
Text Messaging Templates Yes * Yes n/a n/a Yes
Music
FM Radio - Yes Yes - -
Headphone Jack (3.5mm) - - Yes - -
Music Player Yes Yes n/a n/a Yes
Stereo Speakers - - - Yes -
Photo & Video
DLNA - - Yes Yes -
Miracast - - Yes Yes -
Video Calling - Yes * n/a n/a -
Power
Fast Charging - - - Yes -
Wireless Charging - - - Yes -
Productivity
Alarm Yes Yes n/a n/a Yes
Calculator Yes Yes n/a n/a Yes
Calendar Yes Yes n/a n/a Yes
To-Do List - Yes n/a n/a Yes
Voice Memo Yes Yes n/a n/a Yes
Software
BREW Yes - n/a n/a -
Games Yes Yes n/a n/a Yes
Java (J2ME) - Yes n/a n/a Yes
Voice
HD Voice - - Yes Yes -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Motorola RAZR V3m Sony Ericsson K850 Microsoft Lumia 640 Sony Xperia XZ2 Samsung SGH-A727
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola RAZR V3m Sony Ericsson K850 Microsoft Lumia 640 Sony Xperia XZ2 Samsung SGH-A727

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