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Phone Samsung SPH-N270 (Matrix Phone) Samsung SCH-A645 Samsung SGH-X640 Kyocera Hydro Wave / Hydro Air LG AX-490
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
128 x 160 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 1,000 mAh 1,000 mAh 800 mAh 2,300 mAh 1,100 mAh
Processor ? ? ? 1.2 GHz Qualcomm Snapdragon 410 (MSM8916) ?
RAM ? ? ? 1 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 8 GB ? raw hardware
Main Camera - - Yes 5 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - - 1080p HD -
Front Camera - - - 2 megapixel -
Weight 4.66 oz
(132g)
3.2 oz
(91g)
3 oz
(85g)
5.11 oz
(145g)
3.79 oz
(107g)
Dimensions 4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
3.54" x 1.79" x 0.94"
(90 x 45 x 23.9 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.66" x 2.85" x 0.42"
(144 x 72 x 10.7 mm)
3.74" x 1.92" x 1"
(95 x 49 x 25.4 mm)
Form Factor Slide Clamshell Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

4G LTE: 2, 4, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

Data Technology - 1xRTT GPRS LTE (Cat 4) 1xRTT
Features 
Flashlight - - - Yes -
GPS / Location Yes Yes - n/a Yes
Ruggedized - - - Yes -
Water-Resistant - - - Yes
IPX7 (snorkeling)
-
Accessibility
Adjustable Text Size - - - n/a -
Hearing Aid Compatible - Yes - Yes Yes
Multiple Languages Yes Yes Yes n/a Yes
TTY/TDD (Digital) - Yes - Yes Yes
Alerts
Extra Display - Yes - - Yes
Connectivity
Bluetooth - - - Yes Yes
Mobile Hotspot - - - n/a -
USB - - - Yes
Micro-USB
Yes
Wi-Fi - - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes Yes Yes n/a Yes
Ringer ID Yes - Yes n/a Yes
Voice Dialing Yes Yes - n/a Yes
Customization
Custom Graphics - Yes Yes n/a Yes
Custom Ringtones - Yes Yes n/a Yes
Real-Music Ringers - - - n/a Yes
Data & Network
Data Tethering - - - n/a Yes
WAP / Web Browser - Yes * Yes n/a Yes
Input
Predictive Text Entry Yes Yes Yes n/a -
Side Keys - Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - - - Yes -
Memory
Memory Card Slot - - - Yes -
Messaging
Email Client - - - n/a -
EMS / Picture Messaging - Yes Yes n/a -
Instant Messaging - - - n/a -
MMS - - Yes n/a Yes
Text Messaging Templates - Yes Yes n/a Yes
Music
Headphone Jack (3.5mm) - - - Yes -
Music Player - - - n/a -
Stereo Speakers - - - - Yes
Power
Fast Charging - - - Yes * -
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List Yes Yes Yes n/a -
Voice Memo Yes Yes Yes n/a Yes
Software
BREW - Yes * - n/a Yes
Games - Yes * Yes n/a Yes
Java (J2ME) - - Yes n/a -
Voice
HD Voice - - - Yes * -
Headset Jack (2.5 mm) Yes Yes Yes n/a Yes
Speaker Phone - Yes Yes Yes Yes
  * Some versions only
  Samsung SPH-N270 (Matrix Phone) Samsung SCH-A645 Samsung SGH-X640 Kyocera Hydro Wave / Hydro Air LG AX-490
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SPH-N270 (Matrix Phone) Samsung SCH-A645 Samsung SGH-X640 Kyocera Hydro Wave / Hydro Air LG AX-490

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