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Phone Samsung SGH-X640 Samsung Galaxy S6 (GSM) Alcatel 665 Asus Smartphone for Snapdragon Insiders Samsung ATIV SE
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size ? 5.1" diag.
16 : 9
1.8" diag.
4 : 3
6.8" diag.
20.5 : 9
5" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
1080 x 2448 pixels
(~395 ppi)
AMOLED
1080 x 1920 pixels
(~441 ppi)
AMOLED
Display Refresh ? 60 Hz ? 144 Hz ?
Battery 800 mAh 2,550 mAh 650 mAh 4,000 mAh 2,600 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 ? 2.8 GHz Qualcomm Snapdragon 888 ?
RAM ? 3 GB 16 MB 16 GB 2 GB
Storage ? raw hardware 32 GB * 32 MB 512 GB 16 GB
Main Camera Yes 16 megapixel 2 megapixel 64 megapixel 13 megapixel
Wide Camera - - - 12 megapixel -
Tele Camera - - - 8 megapixel -
Video Capture - 4K UHD QCIF (176 x 144) 8K 1080p HD
Front Camera - 5 megapixel - 24 megapixel 2 megapixel
Weight 3 oz
(85g)
4.87 oz
(138g)
2.72 oz
(77g)
7.41 oz
(210g)
4.79 oz
(136g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
3.78" x 1.89" x 0.66"
(96 x 48 x 16.8 mm)
6.82" x 3.04" x 0.38"
(173 x 77 x 9.6 mm)
5.42" x 2.75" x 0.33"
(138 x 70 x 8.4 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) Android Windows
Network Bands

GSM: 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

*

GSM: 850, 1900

5G: 1, 2, 3, 5, 7, 8, 12, 13, 14, 18, 20, 25, 26, 28, 30, 38, 40, 41, 46, 48, 66, 71, 77-C, 78, 257, 258, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 3, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 6) - NR (5G) LTE (Cat 3)
Features 
Fingerprint Reader - Yes - Yes
stand-alone
-
Flashlight - Yes - Yes -
GPS / Location - n/a - n/a n/a
VR-ready - Yes - - -
Accessibility
Adjustable Text Size - n/a - 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
Alerts
Extra Display - - Yes - -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - Yes
MirrorLink - Yes - - -
Mobile Hotspot - n/a - n/a n/a
NFC - Yes - Yes Yes
USB - Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
6E (802.11 a,ac,ax,b,g,n)
Yes
5 (802.11 a,ac,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 - 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
Touch Screen - Yes - Yes Yes
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - n/a - 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
FM Radio - - Yes - -
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player - n/a Yes n/a n/a
Stereo Speakers - - - Yes -
Photo & Video
DLNA - Yes - - Yes
Miracast - Yes - - -
TV Output - Yes - - -
Power
Fast Charging - Yes - Yes -
Wireless 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 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 Samsung Galaxy S6 (GSM) Alcatel 665 Asus Smartphone for Snapdragon Insiders Samsung ATIV SE
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung Galaxy S6 (GSM) Alcatel 665 Asus Smartphone for Snapdragon Insiders Samsung ATIV SE

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