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Phone ZTE Z331 Motorola ROKR E2 Palm Pre Plus (GSM) Coolpad Defiant Motorola Droid Maxx
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 3.1" diag.
5 : 3
5" diag.
16 : 9
5" diag.
16 : 9
Display Resolution & Type 176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~196 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
AMOLED
Display Refresh ? ? ? 60 Hz 60 Hz
Battery 950 mAh ? 1,150 mAh 2,450 mAh 3,500 mAh
Processor ? ? ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T
RAM ? ? ? 1 GB 2 GB
Storage ? raw hardware ? raw hardware ? raw hardware 8 GB 32 GB
Main Camera 3 megapixel 1 megapixel 3 megapixel 5 megapixel 10 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) ? VGA (640 x 480) 720p HD 1080p HD
Front Camera - - - 2 megapixel 2 megapixel
Weight 4 oz
(113g)
3.77 oz
(107g)
4.89 oz
(139g)
6.5 oz
(184g)
5.89 oz
(167g)
Dimensions 3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
3.9" x 2.3" x 0.67"
(99 x 58 x 17 mm)
5.69" x 2.81" x 0.4"
(145 x 71 x 10.2 mm)
5.41" x 2.8" x 0.33"
(137 x 71 x 8.5 mm)
Form Factor Clamshell Slab Slide Slab Slab
Platform / OS (proprietary) (proprietary) webOS Android Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 EDGE HSDPA 1.8 LTE (Cat 4) LTE (Cat 3)
Features 
Flashlight - - - Yes -
GPS / Location Yes - n/a n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a n/a
Hearing Aid Compatible Yes - - Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display Yes - - - -
Ringer Profiles Yes Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - n/a n/a n/a
NFC - - - - Yes
USB Yes
Micro-USB
Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing - Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers Yes - n/a n/a n/a
Data & Network
Data Tethering Yes Yes n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot Yes Yes - Yes -
Messaging
Email Client Yes Yes n/a n/a n/a
Instant Messaging Yes - n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes Yes Yes Yes
Music Player Yes Yes n/a n/a n/a
Photo & Video
Miracast - - - - Yes
Power
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List - Yes n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes Yes n/a n/a n/a
Voice
Speaker Phone Yes Yes Yes Yes Yes
  ZTE Z331 Motorola ROKR E2 Palm Pre Plus (GSM) Coolpad Defiant Motorola Droid Maxx
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Z331 Motorola ROKR E2 Palm Pre Plus (GSM) Coolpad Defiant Motorola Droid Maxx

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