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Phone Audiovox CDM-8500 Samsung Tint SCH-R420 ZTE Obsidian Samsung SCH-A310
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 1.9" diag.
4 : 3
4.5" diag.
16 : 9
?
Display Resolution & Type ? 128 x 160 pixels
(~108 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (Grayscale)
Display Refresh ? ? 60 Hz ?
Battery ? 800 mAh 1,800 mAh ?
Processor ? ? 1 GHz MediaTek / MT6735M ?
RAM ? ? 1 GB ?
Storage ? raw hardware ? raw hardware 8 GB ? raw hardware
Main Camera - Yes 5 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture - - 720p HD -
Front Camera - - 2 megapixel -
Weight 3.2 oz
(91g)
3.35 oz
(95g)
4.66 oz
(132g)
3.2 oz
(91g)
Dimensions 3.3" x 1.6" x 0.9"
(84 x 41 x 22.9 mm)
3.74" x 1.88" x 0.74"
(95 x 48 x 18.8 mm)
5.41" x 2.7" x 0.39"
(137 x 69 x 10 mm)
3.43" x 1.89" x 0.87"
(87 x 48 x 22.1 mm)
Form Factor Clamshell Clamshell Slab Clamshell
Platform / OS (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1700, 1900

4G LTE: 2, 4, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology 1xRTT 1xRTT LTE (Cat 4) 1xRTT
Features 
Flashlight - - Yes -
GPS / Location Yes Yes n/a Yes
Accessibility
Adjustable Text Size - - n/a -
Hearing Aid Compatible - Yes
M4 (very compatible)
Yes
M4, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display Yes Yes - Yes
Connectivity
Bluetooth - Yes Yes -
Mobile Hotspot - - n/a -
USB - - Yes
Micro-USB
Yes
Wi-Fi - - Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID - Yes n/a -
Ringer ID Yes Yes n/a -
Voice Dialing Yes Yes n/a Yes
Customization
Changeable Body Plates - Yes - Yes
Custom Graphics - Yes n/a -
Custom Ringtones - Yes n/a -
Real-Music Ringers - Yes n/a -
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 -
Messaging
Email Client - - n/a -
Instant Messaging - - n/a -
MMS - Yes n/a -
Text Messaging Templates - Yes n/a -
Music
Headphone Jack (3.5mm) - - Yes -
Music Player - - n/a -
Productivity
Alarm Yes Yes n/a -
Calculator Yes Yes n/a -
Calendar Yes Yes n/a Yes
Voice Memo Yes Yes n/a Yes
Software
BREW Yes * Yes n/a -
Games Yes Yes n/a Yes
Voice
Headset Jack (2.5 mm) Yes Yes n/a Yes
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes -
  * Some versions only
  Audiovox CDM-8500 Samsung Tint SCH-R420 ZTE Obsidian Samsung SCH-A310
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Phone Audiovox CDM-8500 Samsung Tint SCH-R420 ZTE Obsidian Samsung SCH-A310

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