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Phone Sony Ericsson S710a Nokia Lumia 521 / 520 Samsung Flight II ZTE Speed Motorola ROKR E2
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 4" diag.
5 : 3
2.8" diag.
5 : 3
4.5" diag.
16 : 9
?
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 400 pixels
(~167 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 780 mAh 1,430 mAh ? 2,000 mAh ?
Processor ? 1 GHz Qualcomm Snapdragon S4 MSM8270 ? 1.2 GHz Qualcomm Snapdragon 410 MSM8916 ?
RAM ? 512 MB ? 1 GB ?
Storage ? raw hardware 8 GB ? raw hardware 8 GB ? raw hardware
Main Camera 1 megapixel 5 megapixel 2 megapixel 5 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 720p HD QVGA (320 x 240) 720p HD ?
Front Camera - - - 2 megapixel -
Weight 4.83 oz
(137g)
4.39 oz
(124g)
3.5 oz
(99g)
4.8 oz
(136g)
3.77 oz
(107g)
Dimensions 4.23" x 1.93" x 0.96"
(107 x 49 x 24.4 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.41" x 2.11" x 0.5"
(112 x 54 x 12.7 mm)
5.3" x 2.6" x 0.4"
(135 x 66 x 10.2 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
Form Factor Swivel Slab Slide Slab Slab
Platform / OS (proprietary) Windows (proprietary) Android (proprietary)
Network Bands

GSM: 850, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 25, 26, 41

CDMA: 800, 850, 1900

GSM: 900, 1800, 1900

Data Technology EDGE HSPA+ 21 HSPA 7.2 LTE (Cat 3) EDGE
Features 
GPS / Location - n/a Yes n/a -
Accessibility
Adjustable Text Size - n/a - n/a -
Hearing Aid Compatible - Yes - Yes -
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Ringer Profiles Yes - Yes - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) Yes - - - -
Mobile Hotspot - n/a - n/a -
USB Yes Yes Yes Yes
Micro-USB
Yes
Wi-Fi - Yes - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a Yes
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing Yes n/a Yes n/a Yes
Customization
Custom Graphics Yes n/a Yes n/a Yes
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers - n/a Yes n/a -
Data & Network
Data Tethering Yes n/a Yes n/a Yes
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen - Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client Yes n/a Yes n/a Yes
EMS / Picture Messaging Yes n/a - n/a -
Instant Messaging - n/a Yes n/a -
MMS Yes n/a Yes n/a Yes
Text Messaging Templates Yes n/a Yes n/a Yes
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) - Yes Yes Yes Yes
Music Player Yes n/a Yes n/a Yes
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a Yes n/a Yes
Voice Memo Yes n/a Yes n/a Yes
Software
Games Yes n/a Yes n/a Yes
Java (J2ME) Yes n/a Yes n/a Yes
Voice
HD Voice - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Sony Ericsson S710a Nokia Lumia 521 / 520 Samsung Flight II ZTE Speed Motorola ROKR E2
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Phone Sony Ericsson S710a Nokia Lumia 521 / 520 Samsung Flight II ZTE Speed Motorola ROKR E2

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