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Phone Samsung Jitterbug J / SPH-A310 HTC EVO 4G LTE Casio G'zOne Boulder BlackBerry Pearl 3G 9100 / 9105
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
4.7" diag.
16 : 9
2" diag.
4 : 3
2.3" diag.
1 : 1
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (Color)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
360 x 400 pixels
(~238 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery ? 2,000 mAh 810 mAh 1,150 mAh
Processor ? 1.5 GHz Qualcomm Snapdragon S4 ? ?
RAM ? 1 GB ? ?
Storage ? raw hardware 16 GB ? raw hardware ? raw hardware
Main Camera - 8 megapixel 1 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture - 1080p HD ? ?
Front Camera - 1 megapixel - -
Weight 3.99 oz
(113g)
5.05 oz
(143g)
4.9 oz
(139g)
3.3 oz
(94g)
Dimensions 3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
5.3" x 2.7" x 0.35"
(135 x 69 x 8.9 mm)
3.9" x 2" x 0.9"
(99 x 51 x 22.9 mm)
4.25" x 1.96" x 0.52"
(108 x 50 x 13.2 mm)
Form Factor Clamshell Slab Clamshell Slab
Platform / OS (proprietary) Android (proprietary) BlackBerry OS
Network Bands

CDMA: 850, 1900

4G LTE: 25

CDMA: 800, 850, 1900

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology - LTE (Cat 3) EVDO rA HSDPA 3.6
Features 
Flashlight - - Yes -
GPS / Location Yes n/a Yes n/a
Ruggedized - - Yes -
Water-Resistant - - Yes -
Accessibility
Adjustable Text Size - n/a - n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages - n/a Yes n/a
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display Yes - Yes -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot - n/a - n/a
NFC - Yes - -
USB - Yes
Micro-USB
Yes Yes
Micro-USB
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- Yes
4 (802.11 b,g,n)
Contacts
Picture ID - n/a Yes n/a
Ringer ID - n/a Yes n/a
Voice Dialing Yes n/a Yes n/a
Customization
Changeable Body Plates - - Yes -
Custom Graphics - n/a Yes n/a
Custom Ringtones - n/a Yes n/a
Real-Music Ringers - n/a - n/a
Data & Network
Data Tethering - n/a Yes n/a
WAP / Web Browser - n/a Yes n/a
Input
Predictive Text Entry - n/a Yes n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes *
Touch Screen - Yes - -
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client - n/a - n/a
EMS / Picture Messaging - n/a Yes n/a
Instant Messaging - n/a - n/a
MMS - n/a Yes n/a
Text Messaging Templates Yes n/a Yes n/a
Music
Headphone Jack (3.5mm) - Yes - Yes
Music Player - n/a Yes n/a
Photo & Video
DLNA - Yes - -
Productivity
Alarm - n/a Yes n/a
Calculator - n/a Yes n/a
Calendar - n/a Yes n/a
To-Do List - n/a - n/a
Voice Memo - n/a Yes n/a
Software
BREW - n/a Yes n/a
Games - n/a Yes n/a
Java (J2ME) - n/a - n/a
Voice
HD Voice - Yes - -
Push-To-Talk - - Yes -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung Jitterbug J / SPH-A310 HTC EVO 4G LTE Casio G'zOne Boulder BlackBerry Pearl 3G 9100 / 9105
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Jitterbug J / SPH-A310 HTC EVO 4G LTE Casio G'zOne Boulder BlackBerry Pearl 3G 9100 / 9105

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