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Phone Samsung Comeback T559 Kyocera Strobe K612 / SwitchBack Kyocera 2235 Palm Treo 755p Sony Xperia Z2
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 2.6" diag.
5 : 3
? ? ? 5.2" diag.
16 : 9
Display Resolution & Type 400 x 240 pixels
(~179 ppi)
LCD (TFT/TFD)
160 x 128 pixels
LCD (STN)
? 320 x 320 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery 960 mAh 900 mAh ? 1,600 mAh 3,200 mAh
Processor ? ? ? 312 MHz Intel XScale 2.3 GHz Qualcomm Snapdragon 801 MSM8974AB
RAM ? ? ? ? 3 GB
Storage ? raw hardware ? raw hardware ? raw hardware ? raw hardware 16 GB
Main Camera 2 megapixel Yes - 1 megapixel 20 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QVGA (320 x 240) - - CIF (352 x 288) 4K UHD
Front Camera - - - - 2 megapixel
Weight 4.6 oz
(130g)
4.1 oz
(116g)
4.34 oz
(123g)
5.64 oz
(160g)
5.75 oz
(163g)
Dimensions 4.33" x 2.2" x 0.73"
(110 x 56 x 18.5 mm)
4.25" x 2.05" x 0.95"
(108 x 52 x 24.1 mm)
4.72" x 1.89" x 0.95"
(120 x 48 x 24.1 mm)
4.4" x 2.3" x 0.84"
(112 x 58 x 21.3 mm)
5.78" x 2.89" x 0.32"
(147 x 73 x 8.2 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Palm OS Android
Network Bands

WCDMA: 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 1xRTT 1xRTT EVDO r0 LTE (Cat 4)
Features 
Flashlight - Yes - - -
GPS / Location - Yes - n/a n/a
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - - - n/a n/a
Hearing Aid Compatible - - - Yes -
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) - Yes - Yes Yes
Alerts
Extra Display Yes Yes - - -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes *
Classic Audio
- Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - Yes -
Mobile Hotspot - - - n/a n/a
NFC - - - - Yes
USB Yes - - Yes Yes
Micro-USB
Wi-Fi - - - - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID 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 - n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers Yes - - n/a n/a
Data & Network
Data Tethering - Yes Yes n/a n/a
External Antenna Jack - - - 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
Text Keyboard, Hardware Yes Yes - Yes -
Touch Screen - - - Yes Yes
Memory
Memory Card Slot Yes - - Yes Yes
Messaging
Email Client Yes Yes * - n/a n/a
EMS / Picture Messaging - Yes - n/a n/a
Instant Messaging Yes Yes * - n/a n/a
MMS Yes Yes - n/a n/a
Text Messaging Templates Yes Yes * Yes n/a n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) - - - - Yes
Music Player Yes - - n/a n/a
Photo & Video
DLNA - - - - Yes
Miracast - - - - Yes
TV Output - - - - Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes - n/a n/a
To-Do List Yes - - n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
BREW - Yes * - n/a n/a
Games Yes Yes Yes n/a n/a
Java (J2ME) Yes Yes * - n/a n/a
Voice
Headset Jack (2.5 mm) - Yes Yes n/a n/a
Speaker Phone Yes Yes - Yes Yes
  * Some versions only
  Samsung Comeback T559 Kyocera Strobe K612 / SwitchBack Kyocera 2235 Palm Treo 755p Sony Xperia Z2
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Comeback T559 Kyocera Strobe K612 / SwitchBack Kyocera 2235 Palm Treo 755p Sony Xperia Z2

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