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Phone Samsung SGH-X640 Microsoft Lumia 950 Pantech Reveal C790 Samsung Galaxy S6 edge (GSM) Samsung Galaxy Reverb
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.2" diag.
16 : 9
2.2" diag.
4 : 3
5.1" diag.
16 : 9
4" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~565 ppi)
AMOLED
320 x 240 pixels
(~182 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz 60 Hz
Battery 800 mAh 3,000 mAh 930 mAh 2,600 mAh 1,700 mAh
Processor ? 1.8 GHz Qualcomm Snapdragon 808 (MSM8992) ? 2.1 GHz Samsung Exynos 1.4 GHz Qualcomm S2 MSM8655
RAM ? 3 GB ? 3 GB 768 MB
Storage ? raw hardware 32 GB ? raw hardware 32 GB * 4 GB
Main Camera Yes 20 megapixel 1 megapixel 16 megapixel 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD QVGA (320 x 240) 4K UHD WVGA / 480p
Front Camera - 5 megapixel - 5 megapixel 1 megapixel
Weight 3 oz
(85g)
5.29 oz
(150g)
4.2 oz
(119g)
4.66 oz
(132g)
4.54 oz
(129g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.71" x 2.88" x 0.32"
(145 x 73 x 8.2 mm)
3.91" x 2.36" x 0.58"
(99 x 60 x 14.8 mm)
5.59" x 2.76" x 0.28"
(142 x 70 x 7 mm)
4.82" x 2.53" x 0.44"
(122 x 64 x 11.3 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Windows (proprietary) Android Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 40

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

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

*

CDMA: 1900

Data Technology GPRS LTE (Cat 6) HSDPA 3.6 LTE (Cat 6) EVDO rA
Features 
Fingerprint Reader - - - Yes -
Flashlight - Yes - Yes -
GPS / Location - n/a Yes n/a n/a
VR-ready - - - Yes -
Accessibility
Adjustable Text Size - n/a Yes n/a n/a
Hearing Aid Compatible - Yes Yes Yes Yes
Multiple Languages Yes n/a Yes n/a n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Ringer Profiles - - Yes - -
Connectivity
Bluetooth - Yes Yes Yes Yes
Infrared (IR) - - - Yes -
MirrorLink - - - Yes -
Mobile Hotspot - n/a - n/a n/a
NFC - Yes - Yes -
USB - Yes
USB Type C
Yes Yes
Micro-USB
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes n/a Yes n/a n/a
Ringer ID Yes n/a Yes n/a n/a
Voice Dialing - n/a - n/a n/a
Customization
Custom Graphics Yes n/a Yes n/a n/a
Custom Ringtones Yes n/a Yes n/a n/a
Real-Music Ringers - n/a Yes n/a n/a
Data & Network
Data Tethering - n/a Yes n/a n/a
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 Yes
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a Yes n/a n/a
EMS / Picture Messaging Yes n/a - n/a n/a
Instant Messaging - n/a Yes n/a n/a
MMS Yes 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 Yes n/a n/a
Photo & Video
DLNA - Yes - Yes -
Miracast - Yes - Yes -
TV Output - Yes - Yes -
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - 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 Yes n/a - n/a n/a
Voice Memo Yes n/a Yes n/a n/a
Software
Games Yes n/a Yes n/a n/a
Java (J2ME) Yes n/a Yes n/a n/a
Voice
HD Voice - Yes - Yes -
Headset Jack (2.5 mm) Yes n/a - n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Microsoft Lumia 950 Pantech Reveal C790 Samsung Galaxy S6 edge (GSM) Samsung Galaxy Reverb
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Microsoft Lumia 950 Pantech Reveal C790 Samsung Galaxy S6 edge (GSM) Samsung Galaxy Reverb

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