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Phone Motorola KRZR K1 Samsung Rugby A837 Sony Ericsson Xperia X10 mini (2010) LG Harmony 4 / Xpression Plus 3 / Premier Pro Plus Pantech Matrix Pro C820
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Not yet released Released Released
Specifications 
Display Size ? 2" diag.
4 : 3
2.6" diag.
4 : 3
6.1" diag.
19.5 : 9
2.4" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~157 ppi)
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery 780 mAh 1,000 mAh ? 3,500 mAh 1,320 mAh
Processor ? ? 600 MHz Qualcomm S1 MSM7227 2 GHz MediaTek Helio P22 (MT6762) 528 MHz ARM 11
RAM ? ? ? 3 GB * ?
Storage ? raw hardware ? raw hardware ? raw hardware 32 GB ? raw hardware
Main Camera 2 megapixel 1 megapixel 5 megapixel 13 megapixel 2 megapixel
Wide Camera - - - 5 megapixel -
Tele Camera - - - - -
Video Capture ? QCIF (176 x 144) VGA (640 x 480) 1080p HD QCIF (176 x 144)
Front Camera - - - 8 megapixel -
Weight 3.6 oz
(102g)
4.66 oz
(132g)
3.11 oz
(88g)
6.1 oz
(173g)
5.34 oz
(151g)
Dimensions 4.05" x 1.65" x 0.63"
(103 x 42 x 16 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
3.26" x 1.97" x 0.64"
(83 x 50 x 16.3 mm)
6.15" x 2.92" x 0.34"
(156 x 74 x 8.6 mm)
4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
Form Factor Clamshell Clamshell Slab Slab Slide
Platform / OS (proprietary) (proprietary) Android Android Windows Mobile Standard
Network Bands

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EDGE HSDPA 3.6 HSPA 7.2 LTE (Cat 6) HSDPA 3.6
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location - Yes n/a n/a n/a
Ruggedized - Yes - - -
Accessibility
Hearing Aid Compatible - Yes - Yes -
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes Yes - - -
Ringer Profiles Yes - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
USB Yes Yes Yes
Micro-USB
Yes
USB Type C
Yes
Wi-Fi - - Yes
802.11 b,g
Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing Yes - n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - Yes n/a n/a n/a
Data & Network
Data Tethering Yes Yes n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - - Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client Yes Yes n/a n/a n/a
EMS / Picture Messaging Yes - n/a n/a n/a
Instant Messaging - Yes n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - - Yes Yes -
Headphone Jack (3.5mm) - - Yes Yes -
Music Player Yes Yes n/a n/a n/a
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List - - n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes Yes n/a n/a n/a
Voice
HD Voice - - - Yes -
Push-To-Talk Yes * Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Motorola KRZR K1 Samsung Rugby A837 Sony Ericsson Xperia X10 mini (2010) LG Harmony 4 / Xpression Plus 3 / Premier Pro Plus Pantech Matrix Pro C820
  X > < X > < X > < X > < X

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

 
Phone Motorola KRZR K1 Samsung Rugby A837 Sony Ericsson Xperia X10 mini (2010) LG Harmony 4 / Xpression Plus 3 / Premier Pro Plus Pantech Matrix Pro C820

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