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Phone Samsung M400 ZTE ZMAX Pro Ericsson T66 Samsung Glyde U940 Samsung SGH-X640
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
6" diag.
16 : 9
? 2.8" diag.
16.5 : 9
?
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
? 240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? ?
Battery 1,000 mAh 3,400 mAh ? 1,000 mAh 800 mAh
Processor 400 MHz Qualcomm QSC6155 1.5 GHz Qualcomm Snapdragon 617 (MSM8952) ? ? ?
RAM 128 MB 2 GB ? ? ?
Storage 256 MB 32 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 1 megapixel 13 megapixel - 2 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD - QVGA (320 x 240) -
Front Camera - 5 megapixel - - -
Weight 3.7 oz
(105g)
6.17 oz
(175g)
2.08 oz
(59g)
4.2 oz
(119g)
3 oz
(85g)
Dimensions 3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
6.5" x 3.3" x 0.35"
(165 x 84 x 8.9 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
Form Factor Clamshell Slab Slab Slide Clamshell
Platform / OS (proprietary) Android (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 800, 850, 1900

4G LTE: 2, 4, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

GSM: 900, 1800, 1900

Data Technology 1xRTT LTE (Cat 4) - EVDO r0 GPRS
Features 
Fingerprint Reader - Yes - - -
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
M4, T3 (mostly tele-coil compatible)
- Yes
M4 (very compatible)
-
Multiple Languages Yes n/a Yes Yes Yes
TTY/TDD (Digital) Yes Yes - Yes -
Alerts
Extra Display Yes - - - -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes - Yes -
Mobile Hotspot - n/a - - -
USB Yes
Micro-USB
Yes
USB Type C
- Yes -
Wi-Fi - Yes
4 (802.11 b,g,n)
- - -
Contacts
Picture ID Yes n/a - Yes Yes
Ringer ID Yes n/a - Yes Yes
Voice Dialing Yes n/a - Yes -
Customization
Custom Graphics Yes n/a Yes Yes Yes
Custom Ringtones Yes n/a Yes Yes Yes
Real-Music Ringers Yes n/a - Yes -
Data & Network
Data Tethering - n/a - Yes -
WAP / Web Browser Yes n/a Yes Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes
Capacitive
- Yes -
Memory
Memory Card Slot - Yes - Yes -
Messaging
Email Client - n/a - - -
EMS / Picture Messaging - n/a Yes - Yes
Instant Messaging - n/a - - -
MMS Yes n/a - Yes Yes
Text Messaging Templates Yes n/a Yes Yes Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) Yes Yes - - -
Music Player - n/a - Yes -
Photo & Video
Miracast - Yes - - -
Productivity
Alarm Yes n/a Yes Yes Yes
Calculator Yes n/a Yes Yes Yes
Calendar Yes n/a Yes Yes Yes
To-Do List - n/a Yes - Yes
Voice Memo Yes n/a - - Yes
Software
BREW - n/a - Yes -
Games Yes n/a Yes Yes Yes
Java (J2ME) - n/a - - Yes
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) - n/a - Yes Yes
Speaker Phone Yes Yes - Yes Yes
  Samsung M400 ZTE ZMAX Pro Ericsson T66 Samsung Glyde U940 Samsung SGH-X640
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Phone Samsung M400 ZTE ZMAX Pro Ericsson T66 Samsung Glyde U940 Samsung SGH-X640

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