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Phone Sony Ericsson Z550a Motorola V176 Sony Xperia Z2 Palm Treo 755p
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Not yet released Released
Specifications 
Display Size 1.9" diag.
4 : 3
? 5.2" diag.
16 : 9
?
Display Resolution & Type 176 x 220 pixels
(~148 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ?
Battery ? 920 mAh 3,200 mAh 1,600 mAh
Processor ? ? 2.3 GHz Qualcomm Snapdragon 801 MSM8974AB 312 MHz Intel XScale
RAM ? ? 3 GB ?
Storage ? raw hardware ? raw hardware 16 GB ? raw hardware
Main Camera 1 megapixel - 20 megapixel 1 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? - 4K UHD CIF (352 x 288)
Front Camera - - 2 megapixel -
Weight 3.26 oz
(92g)
3.53 oz
(100g)
5.75 oz
(163g)
5.64 oz
(160g)
Dimensions 3.43" x 1.77" x 0.79"
(87 x 45 x 20.1 mm)
3.48" x 1.88" x 0.96"
(88 x 48 x 24.4 mm)
5.78" x 2.89" x 0.32"
(147 x 73 x 8.2 mm)
4.4" x 2.3" x 0.84"
(112 x 58 x 21.3 mm)
Form Factor Clamshell Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) Android Palm OS
Network Bands

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology GPRS GPRS LTE (Cat 4) EVDO r0
Features 
GPS / Location - - 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 n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
Ringer Profiles Yes Yes - -
Connectivity
Bluetooth Yes - Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - Yes
Mobile Hotspot - - n/a n/a
NFC - - Yes -
USB Yes - Yes
Micro-USB
Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes - n/a n/a
Ringer ID Yes - n/a n/a
Voice Dialing Yes - n/a 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 Yes n/a n/a
External Antenna Jack - - n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes - Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen - - Yes Yes
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
FM Radio Yes - 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 n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes - n/a n/a
To-Do List Yes - n/a n/a
Voice Memo Yes - n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) Yes - n/a n/a
Voice
Headset Jack (2.5 mm) - Yes n/a n/a
Push-To-Talk Yes * Yes * - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Sony Ericsson Z550a Motorola V176 Sony Xperia Z2 Palm Treo 755p
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Phone Sony Ericsson Z550a Motorola V176 Sony Xperia Z2 Palm Treo 755p

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