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Phone Samsung M400 Samsung Heat Cricket Icon / AT&T Radiant Core Samsung Jitterbug J / SPH-A310 Samsung Wafer R510
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 5.5" diag.
18 : 9
2.1" diag.
4 : 3
1.9" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
480 x 960 pixels
(~195 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (Color)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery 1,000 mAh 800 mAh 2,500 mAh ? 800 mAh
Processor 400 MHz Qualcomm QSC6155 ? 1.5 GHz MediaTek MT6739 ? ?
RAM 128 MB ? 1 GB ? ?
Storage 256 MB ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera 1 megapixel 1 megapixel 5 megapixel - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? 1080p HD - ?
Front Camera - - 2 megapixel - -
Weight 3.7 oz
(105g)
3.17 oz
(90g)
6.07 oz
(172g)
3.99 oz
(113g)
2.47 oz
(70g)
Dimensions 3.8" x 1.9" x 0.7"
(97 x 48 x 17.8 mm)
3.6" x 1.8" x 0.6"
(91 x 46 x 15.2 mm)
5.91" x 2.87" x 0.39"
(150 x 73 x 9.9 mm)
3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
Form Factor Clamshell Slide Slab Clamshell Slab
Platform / OS (proprietary) (proprietary) Android (proprietary) (proprietary)
Network Bands

CDMA: 800, 850, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12, 14, 30

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology 1xRTT EVDO r0 LTE (Cat 4) - EVDO r0
Features 
Flashlight - - Yes - -
GPS / Location Yes Yes n/a Yes Yes
Accessibility
Adjustable Text Size Yes Yes n/a - -
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages Yes Yes n/a - Yes
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display Yes - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
USB Yes
Micro-USB
Yes Yes
Micro-USB
- -
Wi-Fi - - Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID Yes Yes n/a - Yes
Ringer ID Yes Yes n/a - -
Voice Dialing Yes - n/a Yes Yes
Customization
Custom Graphics Yes Yes n/a - Yes
Custom Ringtones Yes Yes n/a - Yes
Real-Music Ringers Yes Yes n/a - -
Data & Network
WAP / Web Browser Yes Yes n/a - Yes
Input
Predictive Text Entry Yes Yes n/a - Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes - -
Memory
Memory Card Slot - - Yes - Yes
Messaging
MMS Yes Yes n/a - Yes
Text Messaging Templates Yes Yes n/a Yes -
Music
Headphone Jack (3.5mm) Yes - Yes - -
Music Player - Yes n/a - Yes
Stereo Speakers - - - - Yes
Productivity
Alarm Yes Yes n/a - Yes
Calculator Yes Yes n/a - Yes
Calendar Yes Yes n/a - Yes
To-Do List - Yes n/a - -
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 Yes
  Samsung M400 Samsung Heat Cricket Icon / AT&T Radiant Core Samsung Jitterbug J / SPH-A310 Samsung Wafer R510
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung M400 Samsung Heat Cricket Icon / AT&T Radiant Core Samsung Jitterbug J / SPH-A310 Samsung Wafer R510

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