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Phone Motorola T720 / T721 (GSM) Audiovox CDM-8150X Motorola i450 / i455 Sony Xperia Pro Samsung Sidekick 4G
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 6.5" diag.
21 : 9
3.5" diag.
5 : 3
Display Resolution & Type 120 x 160 pixels
LCD (STN)
? 130 x 130 pixels
LCD (STN)
1644 x 3840 pixels
(~643 ppi)
AMOLED
480 x 800 pixels
(~267 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz 60 Hz
Battery ? ? ? 4,000 mAh ?
Processor ? ? ? Qualcomm Snapdragon 865 1 GHz Samsung Hummingbird Cortex A8
RAM ? ? ? 12 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 512 GB ? raw hardware
Main Camera - - - 12 megapixel 3 megapixel
Wide Camera - - - 12 megapixel -
Tele Camera - - - 12 megapixel -
Video Capture - - - 4K UHD WVGA / 480p
Front Camera - - - 8 megapixel Yes
Weight 3.56 oz
(101g)
3.88 oz
(110g)
4.5 oz
(128g)
7.94 oz
(225g)
5.7 oz
(162g)
Dimensions 3.5" x 1.87" x 0.83"
(89 x 47 x 21.1 mm)
4.88" x 1.89" x 0.71"
(124 x 48 x 18 mm)
3.5" x 2" x 1.1"
(89 x 51 x 27.9 mm)
6.7" x 3" x 0.4"
(170 x 76 x 10.2 mm)
5" x 2.42" x 0.6"
(127 x 61 x 15.2 mm)
Form Factor Clamshell Slab Clamshell Slab Slide
Platform / OS (proprietary) (proprietary) (proprietary) Android Android
Network Bands

GSM: 850, 1900

CDMA: 850, 1900

AMPS: 850

iDEN: 800

5G: 2, 5, 66, 260, 261

4G LTE: 2, 4, 5, 7, 12, 13, 25, 26, 41, 48, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology GPRS 1xRTT - NR (5G) HSPA+ 21
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location - - Yes n/a n/a
Water-Resistant - - - Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible - - Yes
M3 (mostly compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) - - Yes Yes Yes
Alerts
Extra Display Yes - Yes - -
Ringer Profiles - - Yes - -
Connectivity
Bluetooth - - - Yes Yes
Mobile Hotspot - - - n/a n/a
NFC - - - Yes -
USB - - Yes Yes
USB Type C
Yes
Micro-USB
Wi-Fi - - - Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID - - Yes n/a n/a
Ringer ID Yes - Yes n/a n/a
Voice Dialing Yes Yes Yes n/a n/a
Customization
Changeable Body Plates Yes - - - -
Custom Graphics Yes - Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers - - Yes * n/a n/a
Data & Network
Data Tethering Yes - Yes n/a n/a
Dual-SIM - - - Yes -
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
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 Yes - - n/a n/a
EMS / Picture Messaging Yes - - n/a n/a
Instant Messaging - - - n/a n/a
MMS - - Yes n/a n/a
Text Messaging Templates Yes - Yes n/a n/a
Music
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - - - n/a n/a
Stereo Speakers - - - Yes -
Photo & Video
DLNA - - - - Yes
TV Output - - - Yes -
Power
Fast Charging - - - Yes -
Productivity
Alarm Yes - - n/a n/a
Calculator Yes Yes - n/a n/a
Calendar Yes Yes Yes n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
Games Yes - Yes n/a n/a
Java (J2ME) Yes - Yes n/a n/a
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) Yes Yes Yes n/a n/a
Push-To-Talk - - Yes - -
Speaker Phone - - Yes Yes Yes
  * Some versions only
  Motorola T720 / T721 (GSM) Audiovox CDM-8150X Motorola i450 / i455 Sony Xperia Pro Samsung Sidekick 4G
  X > < X > < X > < X > < X

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

 
Phone Motorola T720 / T721 (GSM) Audiovox CDM-8150X Motorola i450 / i455 Sony Xperia Pro Samsung Sidekick 4G

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