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Phone Samsung SGH-X640 BlackBerry 7230 / 7210 Samsung Galaxy S8+ Samsung Galaxy J2 / J2 Pure / J2 Dash HTC Desire 816
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 6.2" diag.
18.5 : 9
5" diag.
16 : 9
5.5" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 160 pixels
LCD (Color)
1440 x 2960 pixels
(~531 ppi)
AMOLED
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~267 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 800 mAh ? 3,500 mAh 2,600 mAh 2,600 mAh
Processor ? ? 2.3 GHz Qualcomm Snapdragon 835 (MSM8998) 1.4 GHz Samsung Exynos 7570 1.6 GHz Qualcomm Snapdragon 400
RAM ? ? 4 GB 2 GB 1.5 GB
Storage ? raw hardware ? raw hardware 64 GB 16 GB 8 GB
Main Camera Yes - 12 megapixel 8 megapixel 13 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - 4K UHD 1080p HD 1080p HD
Front Camera - - 8 megapixel 5 megapixel 5 megapixel
Weight 3 oz
(85g)
4.9 oz
(139g)
6.1 oz
(173g)
5.43 oz
(154g)
5.82 oz
(165g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.4" x 2.9" x 0.94"
(112 x 74 x 23.9 mm)
6.28" x 2.89" x 0.32"
(160 x 73 x 8.1 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
6.17" x 3.1" x 0.31"
(157 x 79 x 8 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) BlackBerry OS Android Android Android
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 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: 25, 26, 41

CDMA: 800, 850, 1900

Data Technology GPRS GPRS LTE (Cat 16) LTE (Cat 4) LTE (Cat 3)
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - - Yes Yes -
GPS / Location - n/a n/a n/a n/a
VR-ready - - Yes - -
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size - n/a n/a n/a n/a
Hearing Aid Compatible - Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) - - Yes Yes Yes
Connectivity
Bluetooth - - Yes Yes Yes
MirrorLink - - Yes - -
Mobile Hotspot - n/a n/a n/a n/a
NFC - - Yes - Yes
USB - Yes Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - Yes
5 (802.11 a,ac,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 n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing - n/a n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers - n/a n/a n/a n/a
Data & Network
Data Tethering - n/a n/a n/a n/a
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - 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 n/a
EMS / Picture Messaging Yes n/a n/a n/a n/a
Instant Messaging - n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - n/a n/a n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
DLNA - - - - Yes
Miracast - - - - Yes
Power
Fast Charging - - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
To-Do List Yes n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
Games Yes n/a n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a n/a
Voice
HD Voice - - Yes - Yes
Headset Jack (2.5 mm) Yes n/a n/a n/a n/a
Push-To-Talk - - - - Yes *
Speaker Phone Yes - Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 BlackBerry 7230 / 7210 Samsung Galaxy S8+ Samsung Galaxy J2 / J2 Pure / J2 Dash HTC Desire 816
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 BlackBerry 7230 / 7210 Samsung Galaxy S8+ Samsung Galaxy J2 / J2 Pure / J2 Dash HTC Desire 816

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