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Phone Samsung SGH-X640 Samsung Rugby A837 Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SPH-N270 (Matrix Phone) HTC G2
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2" diag.
4 : 3
5" diag.
16 : 9
? 3.7" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? 60 Hz
Battery 800 mAh 1,000 mAh 2,600 mAh 1,000 mAh 1,300 mAh
Processor ? ? 1.4 GHz Samsung Exynos 7570 ? 800 MHz Qualcomm S2 MSM7230
RAM ? ? 2 GB ? ?
Storage ? raw hardware ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera Yes 1 megapixel 8 megapixel - 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - QCIF (176 x 144) 1080p HD - 720p HD
Front Camera - - 5 megapixel - -
Weight 3 oz
(85g)
4.66 oz
(132g)
5.43 oz
(154g)
4.66 oz
(132g)
6.5 oz
(184g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
Form Factor Clamshell Clamshell Slab Slide Slab
Platform / OS (proprietary) (proprietary) Android (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

WCDMA: 2, 5

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

*

CDMA: 850, 1900

AMPS: 850

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology GPRS HSDPA 3.6 LTE (Cat 4) - HSPA 14.4
Features 
Flashlight - - Yes - -
GPS / Location - Yes n/a Yes n/a
Ruggedized - Yes - - -
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M3 (mostly compatible)
Multiple Languages Yes Yes n/a Yes n/a
TTY/TDD (Digital) - Yes Yes - -
Alerts
Extra Display - Yes - - -
Connectivity
Bluetooth - Yes Yes - Yes
Mobile Hotspot - - n/a - n/a
USB - Yes Yes
Micro-USB
- Yes
Wi-Fi - - Yes
4 (802.11 b,g,n)
- Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes n/a Yes n/a
Ringer ID Yes Yes n/a Yes n/a
Voice Dialing - - n/a Yes n/a
Customization
Custom Graphics Yes Yes n/a - n/a
Custom Ringtones Yes Yes n/a - n/a
Real-Music Ringers - Yes n/a - n/a
Data & Network
Data Tethering - Yes n/a - n/a
WAP / Web Browser Yes Yes n/a - n/a
Input
Predictive Text Entry Yes Yes n/a Yes n/a
Side Keys Yes Yes Yes - Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - - Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - Yes n/a - n/a
EMS / Picture Messaging Yes - n/a - n/a
Instant Messaging - Yes n/a - n/a
MMS Yes Yes n/a - n/a
Text Messaging Templates Yes Yes n/a - n/a
Music
Headphone Jack (3.5mm) - - Yes - Yes
Music Player - Yes n/a - n/a
Productivity
Alarm Yes Yes n/a Yes n/a
Calculator Yes Yes n/a Yes n/a
Calendar Yes Yes n/a Yes n/a
To-Do List Yes - n/a Yes n/a
Voice Memo Yes Yes n/a Yes n/a
Software
Games Yes Yes n/a - n/a
Java (J2ME) Yes Yes n/a - n/a
Voice
Headset Jack (2.5 mm) Yes - n/a Yes n/a
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes - Yes
  Samsung SGH-X640 Samsung Rugby A837 Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SPH-N270 (Matrix Phone) HTC G2
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Samsung Rugby A837 Samsung Galaxy J2 / J2 Pure / J2 Dash Samsung SPH-N270 (Matrix Phone) HTC G2

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