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Phone Samsung M520 Samsung SGH-X640 Nokia 3220 ZTE Avid 4 Samsung SGH-N625
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? ? 5" diag.
16 : 9
?
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
128 x 128 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
128 x 64 pixels
Display Refresh ? ? ? 60 Hz ?
Battery ? 800 mAh 760 mAh 2,520 mAh ?
Processor ? ? ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ?
RAM ? ? ? 2 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB ? raw hardware
Main Camera 1 megapixel Yes Yes 8 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - ? 720p HD -
Front Camera - - - 5 megapixel -
Weight 2.75 oz
(78g)
3 oz
(85g)
3.03 oz
(86g)
5.6 oz
(159g)
2.93 oz
(83g)
Dimensions 4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.11" x 1.74" x 0.74"
(104 x 44 x 18.8 mm)
5.7" x 2.8" x 0.36"
(145 x 71 x 9.1 mm)
3.94" x 1.69" x 0.78"
(100 x 43 x 19.8 mm)
Form Factor Slide Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

GSM: 850, 1800, 1900

*

4G LTE: 2, 4, 5, 12, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1900

Data Technology EVDO r0 GPRS EDGE LTE (Cat 4) -
Features 
Flashlight - - - Yes -
GPS / Location Yes - - n/a -
Accessibility
Hearing Aid Compatible Yes
M4 (very compatible)
- - Yes
M4, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes Yes Yes n/a Yes
TTY/TDD (Digital) Yes - Yes Yes -
Alerts
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes - - Yes -
USB Yes - Yes Yes
Micro-USB
-
Wi-Fi - - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes Yes Yes n/a -
Ringer ID Yes Yes Yes n/a Yes
Voice Dialing Yes - Yes n/a Yes
Customization
Changeable Body Plates - - Yes - -
Custom Graphics Yes Yes Yes n/a Yes
Custom Ringtones Yes Yes Yes n/a Yes
Data & Network
Data Tethering Yes - Yes n/a -
WAP / Web Browser Yes Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes Yes n/a Yes
Side Keys Yes Yes - Yes Yes
Touch Screen - - - Yes
Capacitive
-
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client - - Yes n/a -
EMS / Picture Messaging - Yes Yes n/a -
Instant Messaging - - Yes n/a -
MMS - Yes Yes n/a Yes
Text Messaging Templates Yes Yes Yes n/a Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - - Yes -
Music Player Yes - - n/a -
Productivity
Alarm Yes Yes Yes n/a Yes
Calculator Yes Yes Yes n/a Yes
Calendar Yes Yes Yes n/a Yes
To-Do List Yes Yes - n/a Yes
Voice Memo Yes Yes Yes n/a Yes
Software
Games Yes Yes Yes n/a Yes
Java (J2ME) Yes Yes Yes n/a -
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) - Yes - n/a Yes
Speaker Phone Yes Yes Yes Yes -
  Samsung M520 Samsung SGH-X640 Nokia 3220 ZTE Avid 4 Samsung SGH-N625
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Phone Samsung M520 Samsung SGH-X640 Nokia 3220 ZTE Avid 4 Samsung SGH-N625

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