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Phone Motorola KRZR K1m Samsung Wafer R510 Samsung SCH-U740 Alias Pantech Duo C810 Sony Xperia X Compact
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 1.9" diag.
4 : 3
? 2.2" diag.
4 : 3
4.6" diag.
16 : 9
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~319 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery 880 mAh 800 mAh ? 1,320 mAh 2,700 mAh
Processor ? ? ? ARM 920t PXA27x 1.8 GHz Qualcomm Snapdragon 650 (MSM8956)
RAM ? ? ? ? 3 GB
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware 32 GB
Main Camera 1 megapixel 1 megapixel 1 megapixel 1 megapixel 23 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? ? ? QVGA (320 x 240) 1080p HD
Front Camera - - - - 5 megapixel
Weight 3.63 oz
(103g)
2.47 oz
(70g)
3.56 oz
(101g)
3.88 oz
(110g)
4.76 oz
(135g)
Dimensions 4.06" x 1.73" x 0.67"
(103 x 44 x 17 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
3.84" x 2.04" x 0.63"
(98 x 52 x 16 mm)
4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
5.08" x 2.56" x 0.37"
(129 x 65 x 9.5 mm)
Form Factor Clamshell Slab Clamshell Slide Slab
Platform / OS (proprietary) (proprietary) (proprietary) Windows Mobile Standard Android
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 40, 41

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 EVDO r0 EVDO r0 HSDPA 1.8 LTE (Cat 6)
Features 
Barometer - - - - Yes
Fingerprint Reader - - - - Yes *
Flashlight - - - - Yes
GPS / Location Yes Yes Yes n/a n/a
Accessibility
Hearing Aid Compatible Yes Yes Yes - Yes
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display Yes - Yes - -
Ringer Profiles Yes - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
NFC - - - - Yes
USB Yes
Mini-USB
- Yes Yes Yes
USB Type C
Wi-Fi - - - - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes Yes Yes n/a n/a
Ringer ID Yes - Yes n/a n/a
Voice Dialing Yes Yes Yes n/a n/a
Customization
Custom Graphics Yes Yes Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers - - - n/a n/a
Data & Network
Data Tethering Yes - Yes n/a n/a
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes Yes -
Touch Screen - - - - Yes
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client - - Yes n/a n/a
EMS / Picture Messaging Yes - - n/a n/a
Instant Messaging Yes * - Yes n/a n/a
MMS Yes Yes Yes n/a n/a
Text Messaging Templates Yes - Yes n/a n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) - - - - Yes
Music Player Yes Yes Yes n/a n/a
Stereo Speakers - Yes - - Yes
Photo & Video
DLNA - - - - Yes
Miracast - - - - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List - - - n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
BREW Yes * Yes Yes n/a n/a
Games Yes Yes Yes n/a n/a
Java (J2ME) Yes * - - n/a n/a
Voice
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Motorola KRZR K1m Samsung Wafer R510 Samsung SCH-U740 Alias Pantech Duo C810 Sony Xperia X Compact
  X > < X > < X > < X > < X

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

 
Phone Motorola KRZR K1m Samsung Wafer R510 Samsung SCH-U740 Alias Pantech Duo C810 Sony Xperia X Compact

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