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Phone Motorola Rival A455 Motorola Moto z4 BlackBerry Bold 9900 Sharp Sidekick LX 2009
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
6.4" diag.
19.5 : 9
2.8" diag.
4 : 3
3.2" diag.
16 : 9
Display Resolution & Type 176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~403 ppi)
AMOLED
640 x 480 pixels
(~286 ppi)
LCD (TFT/TFD)
854 x 480 pixels
(~306 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery 940 mAh 3,600 mAh 1,230 mAh 1,250 mAh
Processor ? 2 GHz Qualcomm Snapdragon 675 1.2 GHz Qualcomm Snapdragon S2 MSM8255 ?
RAM ? 4 GB 768 MB ?
Storage ? raw hardware 128 GB 8 GB ? raw hardware
Main Camera 2 megapixel 48 megapixel 5 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture QVGA (320 x 240) 4K UHD 720p HD QVGA (320 x 240)
Front Camera - 25 megapixel - -
Weight 4.48 oz
(127g)
6 oz
(170g)
4.59 oz
(130g)
5.78 oz
(164g)
Dimensions 3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
6.22" x 2.96" x 0.29"
(158 x 75 x 7.4 mm)
4.53" x 2.6" x 0.41"
(115 x 66 x 10.5 mm)
5.12" x 2.36" x 0.63"
(130 x 60 x 16 mm)
Form Factor Slide Slab Slab Swivel
Platform / OS (proprietary) Android BlackBerry OS (proprietary)
Network Bands

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 LTE (Cat 12) HSPA 14.4 HSPA 7.2
Features 
Fingerprint Reader - Yes - -
Flashlight - Yes - -
GPS / Location Yes n/a n/a Yes
Water-Resistant - Yes - -
Accessibility
Adjustable Text Size - n/a n/a Yes
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Ringer Profiles - - Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes
NFC - Yes Yes -
USB Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes n/a n/a Yes
Ringer ID Yes n/a n/a Yes
Voice Dialing Yes n/a n/a -
Customization
Custom Graphics Yes n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers Yes n/a n/a Yes
Data & Network
Data Tethering Yes n/a n/a -
WAP / Web Browser Yes n/a n/a Yes
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes Yes
Touch Screen Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client Yes n/a n/a Yes
EMS / Picture Messaging Yes n/a n/a -
Instant Messaging Yes n/a n/a Yes
MMS Yes n/a n/a Yes
Text Messaging Templates Yes n/a n/a Yes
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) Yes Yes Yes Yes
Music Player Yes n/a n/a Yes
Power
Fast Charging - Yes - -
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a -
Calendar Yes n/a n/a Yes
To-Do List - n/a n/a Yes
Voice Memo Yes n/a n/a -
Software
BREW Yes n/a n/a -
Games Yes n/a n/a Yes
Java (J2ME) - n/a n/a Yes
Voice
HD Voice - Yes - -
Speaker Phone Yes Yes Yes Yes
  Motorola Rival A455 Motorola Moto z4 BlackBerry Bold 9900 Sharp Sidekick LX 2009
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Phone Motorola Rival A455 Motorola Moto z4 BlackBerry Bold 9900 Sharp Sidekick LX 2009

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