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Phone Sony Ericsson T237 / T290a Samsung Rant M540 Sony Xperia Z Ultra AT&T Vista
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Not yet released Released
Specifications 
Display Size ? 2.1" diag.
4 : 3
6.4" diag.
16 : 9
5.5" diag.
18 : 9
Display Resolution & Type 101 x 80 pixels
LCD (STN)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~344 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery ? ? 3,050 mAh 2,450 mAh
Processor ? ? 2.2 GHz Qualcomm Snapdragon 800 MSM8974 2 GHz MediaTek Helio A22 (MT6761V)
RAM ? ? 2 GB 3 GB
Storage ? raw hardware ? raw hardware 16 GB 32 GB
Main Camera - 2 megapixel 8 megapixel 8 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - QCIF (176 x 144) 1080p HD 1080p HD
Front Camera - - 2 megapixel 5 megapixel
Weight 2.79 oz
(79g)
4.9 oz
(139g)
7.48 oz
(212g)
5.51 oz
(156g)
Dimensions 4" x 1.71" x 0.71"
(102 x 43 x 18 mm)
4.44" x 2.05" x 0.71"
(113 x 52 x 18 mm)
7.06" x 3.63" x 0.26"
(179 x 92 x 6.5 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
Form Factor Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android
Network Bands

GSM: 850, 1900

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

Data Technology GPRS EVDO r0 LTE (Cat 4) LTE (Cat 4)
Features 
Flashlight - - - Yes
GPS / Location - Yes n/a n/a
Ruggedized - - Yes -
Water-Resistant - - Yes -
Accessibility
Adjustable Text Size - - n/a n/a
Hearing Aid Compatible - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes - -
Connectivity
Bluetooth - Yes Yes Yes
MirrorLink - - Yes -
Mobile Hotspot - - n/a n/a
NFC - - Yes -
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes Yes
Contacts
Picture ID Yes Yes n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing Yes 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 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 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 - - n/a n/a
MMS Yes - n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) - - Yes 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 Yes n/a n/a
To-Do List - - n/a n/a
Voice Memo Yes Yes n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) - Yes n/a n/a
Voice
HD Voice - - - Yes
Headset Jack (2.5 mm) - Yes n/a n/a
Speaker Phone Yes Yes Yes Yes
  Sony Ericsson T237 / T290a Samsung Rant M540 Sony Xperia Z Ultra AT&T Vista
  X > < X > < X > < X

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

 
Phone Sony Ericsson T237 / T290a Samsung Rant M540 Sony Xperia Z Ultra AT&T Vista

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