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Phone Samsung SGH-X640 Sony Xperia Pro ZTE Blade Spark Siemens A56 / A56i
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.5" diag.
21 : 9
5.5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1644 x 3840 pixels
(~643 ppi)
AMOLED
720 x 1280 pixels
(~267 ppi)
LCD (TFT/TFD)
101 x 64 pixels
Display Refresh ? 60 Hz 60 Hz ?
Battery 800 mAh 4,000 mAh 3,140 mAh 700 mAh
Processor ? Qualcomm Snapdragon 865 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ?
RAM ? 12 GB 2 GB ?
Storage ? raw hardware 512 GB 16 GB ? raw hardware
Main Camera Yes 12 megapixel 13 megapixel -
Wide Camera - 12 megapixel - -
Tele Camera - 12 megapixel - -
Video Capture - 4K UHD 1080p HD -
Front Camera - 8 megapixel 5 megapixel -
Weight 3 oz
(85g)
7.94 oz
(225g)
6.12 oz
(173g)
3 oz
(85g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.7" x 3" x 0.4"
(170 x 76 x 10.2 mm)
6.14" x 3.06" x 0.38"
(156 x 78 x 9.7 mm)
4" x 1.7" x 0.8"
(102 x 43 x 20.3 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

5G: 2, 5, 66, 260, 261

4G LTE: 2, 4, 5, 7, 12, 13, 25, 26, 41, 48, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 29, 30

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

Data Technology GPRS NR (5G) LTE (Cat 4) -
Features 
Fingerprint Reader - Yes
stand-alone
Yes
stand-alone
-
Flashlight - Yes Yes -
GPS / Location - n/a n/a Yes
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes n/a n/a -
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth - Yes Yes -
NFC - Yes - -
USB - Yes
USB Type C
Yes
USB Type C
-
Wi-Fi - Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a n/a Yes
Ringer ID Yes n/a n/a Yes
Customization
Changeable Body Plates - - - Yes
Custom Graphics Yes n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Data & Network
Dual-SIM - Yes - -
WAP / Web Browser Yes n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes -
Touch Screen - Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes -
Messaging
EMS / Picture Messaging Yes n/a n/a Yes
MMS Yes n/a n/a -
Text Messaging Templates Yes n/a n/a -
Music
Headphone Jack (3.5mm) - Yes Yes -
Stereo Speakers - Yes - -
Photo & Video
TV Output - Yes - -
Power
Fast Charging - Yes - -
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a Yes
Calendar Yes n/a n/a -
To-Do List Yes n/a n/a -
Voice Memo Yes n/a n/a -
Software
Games Yes n/a n/a Yes
Java (J2ME) Yes n/a n/a -
Voice
HD Voice - Yes Yes -
Headset Jack (2.5 mm) Yes n/a n/a -
Speaker Phone Yes Yes Yes -
  Samsung SGH-X640 Sony Xperia Pro ZTE Blade Spark Siemens A56 / A56i
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Phone Samsung SGH-X640 Sony Xperia Pro ZTE Blade Spark Siemens A56 / A56i

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