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Phone Audiovox CDM-8940 Samsung SGH-A437 / A436 Samsung Galaxy S6 (GSM) Samsung SGH-T809 / SGH-D820 ZTE Z221
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2" diag.
4 : 3
5.1" diag.
16 : 9
? 2" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
128 x 160 pixels
(~102 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery 1,100 mAh 900 mAh 2,550 mAh ? 900 mAh
Processor ? ? 2.1 GHz Samsung Exynos 7420 ? ?
RAM ? ? 3 GB ? ?
Storage ? raw hardware ? raw hardware 32 GB * ? raw hardware 142 MB
Main Camera 1 megapixel Yes 16 megapixel 1 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? - 4K UHD CIF (352 x 288) QCIF (176 x 144)
Front Camera - - 5 megapixel - -
Weight 3.89 oz
(110g)
2.9 oz
(82g)
4.87 oz
(138g)
3.35 oz
(95g)
3.24 oz
(92g)
Dimensions 3.56" x 1.82" x 0.92"
(90 x 46 x 23.4 mm)
3.74" x 1.89" x 0.63"
(95 x 48 x 16 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
3.9" x 2" x 0.58"
(99 x 51 x 14.7 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
Form Factor Clamshell Clamshell Slab Slide Clamshell
Platform / OS (proprietary) (proprietary) Android (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 EDGE LTE (Cat 6) EDGE HSDPA 3.6
Features 
Fingerprint Reader - - Yes - -
Flashlight Yes - Yes - -
GPS / Location Yes - n/a - Yes
VR-ready - - Yes - -
Accessibility
Hearing Aid Compatible - Yes *
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes Yes - - Yes
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - Yes Yes Yes Yes
Infrared (IR) - - Yes - -
MirrorLink - - Yes - -
NFC - - Yes - -
USB Yes - Yes
Micro-USB
Yes Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes Yes n/a Yes -
Ringer ID Yes Yes n/a Yes -
Voice Dialing Yes - n/a - -
Customization
Custom Graphics Yes Yes n/a Yes Yes
Custom Ringtones Yes Yes n/a Yes Yes
Real-Music Ringers - - n/a Yes Yes
Data & Network
Data Tethering Yes Yes n/a Yes -
WAP / Web Browser Yes Yes n/a Yes Yes
Input
Predictive Text Entry Yes Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes
Capacitive
- -
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client - - n/a - Yes
EMS / Picture Messaging - - n/a Yes -
Instant Messaging - Yes n/a Yes Yes
MMS Yes Yes n/a Yes Yes
Text Messaging Templates Yes Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) - - Yes - -
Music Player Yes - n/a Yes -
Stereo Speakers - - - Yes -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
TV Output - - Yes - -
Power
Fast Charging - - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm Yes Yes n/a Yes Yes
Calculator Yes Yes n/a Yes Yes
Calendar Yes Yes n/a Yes Yes
To-Do List - Yes n/a Yes -
Voice Memo Yes Yes n/a Yes Yes
Software
BREW Yes - n/a - -
Games Yes * Yes n/a Yes Yes
Java (J2ME) - Yes n/a Yes Yes
Voice
Call Screening Yes - - - -
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes - n/a - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Audiovox CDM-8940 Samsung SGH-A437 / A436 Samsung Galaxy S6 (GSM) Samsung SGH-T809 / SGH-D820 ZTE Z221
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Audiovox CDM-8940 Samsung SGH-A437 / A436 Samsung Galaxy S6 (GSM) Samsung SGH-T809 / SGH-D820 ZTE Z221

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