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Phone Samsung M400 Ericsson R520 ZTE Speed Samsung SCH-A990
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 4.5" diag.
16 : 9
?
Display Resolution & Type 240 x 320 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 1,000 mAh ? 2,000 mAh 1,000 mAh
Processor 400 MHz Qualcomm QSC6155 ? 1.2 GHz Qualcomm Snapdragon 410 MSM8916 ?
RAM 128 MB ? 1 GB ?
Storage 256 MB ? raw hardware 8 GB ? raw hardware
Main Camera 1 megapixel - 5 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - 720p HD ?
Front Camera - - 2 megapixel -
Weight 3.7 oz
(105g)
4.23 oz
(120g)
4.8 oz
(136g)
4.4 oz
(125g)
Dimensions 3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
5.3" x 2.6" x 0.4"
(135 x 66 x 10.2 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Clamshell Slab Slab Clamshell
Platform / OS (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 800, 850, 1900

GSM: 900, 1800, 1900

4G LTE: 25, 26, 41

CDMA: 800, 850, 1900

CDMA: 850, 1900

Data Technology 1xRTT GPRS LTE (Cat 3) EVDO r0
Features 
Flashlight - - - Yes
GPS / Location Yes - n/a Yes
Accessibility
Adjustable Text Size Yes - n/a -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Extra Display Yes - - Yes
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) - Yes - -
Mobile Hotspot - - n/a -
USB Yes
Micro-USB
- Yes
Micro-USB
Yes
Wi-Fi - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes - n/a Yes
Ringer ID Yes - n/a Yes
Voice Dialing Yes Yes n/a Yes
Customization
Custom Graphics Yes - n/a Yes
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers Yes - n/a Yes
Data & Network
Data Tethering - Yes n/a Yes
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
-
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client - - n/a -
EMS / Picture Messaging - - n/a Yes
Instant Messaging - - n/a -
MMS Yes - n/a Yes
Text Messaging Templates Yes Yes n/a Yes
Music
Headphone Jack (3.5mm) Yes - Yes -
Music Player - - n/a Yes
Stereo Speakers - - - Yes
Photo & Video
TV Output - - - Yes
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
Voice Memo Yes Yes n/a Yes
Software
BREW - - n/a Yes
Games Yes Yes n/a Yes
Voice
HD Voice - - Yes -
Speaker Phone Yes Yes Yes Yes
  Samsung M400 Ericsson R520 ZTE Speed Samsung SCH-A990
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Phone Samsung M400 Ericsson R520 ZTE Speed Samsung SCH-A990

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