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Phone Samsung SGH-X640 Samsung Galaxy J2 / J2 Pure / J2 Dash HTC Desire 612 (CDMA) Cricket Influence / AT&T Maestro Plus Kyocera 3225
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
4.7" diag.
16 : 9
6.2" diag.
19 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~234 ppi)
LCD (TFT/TFD)
720 x 1520 pixels
(~271 ppi)
LCD (TFT/TFD)
?
LCD (Grayscale)
Display Refresh ? 60 Hz 60 Hz 60 Hz ?
Battery 800 mAh 2,600 mAh 2,040 mAh 3,300 mAh ?
Processor ? 1.4 GHz Samsung Exynos 7570 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) 1.8 GHz Qualcomm Snapdragon 460 ?
RAM ? 2 GB 1 GB 3 GB ?
Storage ? raw hardware 16 GB 8 GB 32 GB ? raw hardware
Main Camera Yes 8 megapixel 8 megapixel 13 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD 1080p HD 1080p HD -
Front Camera - 5 megapixel 1 megapixel 5 megapixel -
Weight 3 oz
(85g)
5.43 oz
(154g)
5.15 oz
(146g)
6.52 oz
(185g)
4.23 oz
(120g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
5.66" x 2.77" x 0.37"
(144 x 70 x 9.4 mm)
6.28" x 2.99" x 0.35"
(160 x 76 x 8.9 mm)
3.4" x 1.97" x 1.02"
(86 x 50 x 25.9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 4, 13

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12, 14, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS LTE (Cat 4) LTE (Cat 3) LTE (Cat 13) 1xRTT
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - Yes - Yes -
GPS / Location - n/a n/a n/a Yes
Accessibility
Adjustable Text Size - n/a n/a n/a -
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Connectivity
Bluetooth - Yes Yes Yes -
Mobile Hotspot - n/a n/a n/a -
NFC - - Yes - -
USB - Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
-
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a n/a n/a -
Ringer ID Yes n/a n/a n/a -
Voice Dialing - n/a n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a n/a Yes
Custom Ringtones Yes n/a n/a n/a Yes
Real-Music Ringers - n/a n/a n/a -
Data & Network
Data Tethering - n/a n/a n/a Yes
WAP / Web Browser Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes -
Touch Screen - Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client - n/a n/a n/a -
EMS / Picture Messaging Yes n/a n/a n/a Yes
Instant Messaging - n/a n/a n/a -
MMS Yes n/a n/a n/a -
Text Messaging Templates Yes n/a n/a n/a -
Music
Headphone Jack (3.5mm) - Yes Yes Yes -
Music Player - n/a n/a n/a -
Stereo Speakers - - Yes - -
Photo & Video
DLNA - - Yes - -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List Yes n/a n/a n/a -
Voice Memo Yes n/a n/a n/a -
Software
BREW - n/a n/a n/a Yes
Games Yes n/a n/a n/a Yes
Java (J2ME) Yes n/a n/a n/a -
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) Yes n/a n/a n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Samsung Galaxy J2 / J2 Pure / J2 Dash HTC Desire 612 (CDMA) Cricket Influence / AT&T Maestro Plus Kyocera 3225
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung Galaxy J2 / J2 Pure / J2 Dash HTC Desire 612 (CDMA) Cricket Influence / AT&T Maestro Plus Kyocera 3225

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