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Phone Apple iPhone 4 (CDMA) BlackBerry Curve 3G 9330 AT&T Vista ZTE Z331
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
2.5" diag.
4 : 3
5.5" diag.
18 : 9
2.4" diag.
4 : 3
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~160 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery ? 1,150 mAh 2,450 mAh 950 mAh
Processor ? ? 2 GHz MediaTek Helio A22 (MT6761V) ?
RAM ? ? 3 GB ?
Storage 8 GB * ? raw hardware 32 GB ? raw hardware
Main Camera 5 megapixel 2 megapixel 8 megapixel 3 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD ? 1080p HD QCIF (176 x 144)
Front Camera Yes - 5 megapixel -
Weight 4.8 oz
(136g)
3.7 oz
(105g)
5.51 oz
(156g)
4 oz
(113g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
4.29" x 2.36" x 0.55"
(109 x 60 x 14 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
Form Factor Slab Slab Slab Clamshell
Platform / OS iOS BlackBerry OS Android (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO rA EVDO r0 LTE (Cat 4) HSDPA 3.6
Features 
Flashlight - - Yes -
GPS / Location n/a n/a n/a Yes
Accessibility
Adjustable Text Size n/a n/a n/a -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Multiple Languages n/a n/a n/a Yes
TTY/TDD (Digital) - Yes - Yes
Alerts
Extra Display - - - Yes
Ringer Profiles - Yes - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot n/a n/a n/a -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
802.11 b,g
Yes -
Contacts
Picture ID n/a n/a n/a Yes
Ringer ID n/a n/a n/a Yes
Voice Dialing n/a n/a n/a -
Customization
Custom Graphics n/a n/a n/a Yes
Custom Ringtones n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a Yes
Data & Network
Data Tethering n/a n/a n/a Yes
WAP / Web Browser n/a n/a n/a Yes
Input
Predictive Text Entry n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - -
Touch Screen Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes Yes
Messaging
Email Client n/a n/a n/a Yes
Instant Messaging n/a n/a n/a Yes
MMS n/a n/a n/a Yes
Text Messaging Templates n/a n/a n/a Yes
Music
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player n/a n/a n/a Yes
Photo & Video
TV Output Yes - - -
Video Calling n/a n/a n/a -
Productivity
Alarm n/a n/a n/a Yes
Calculator n/a n/a n/a Yes
Calendar n/a n/a n/a Yes
To-Do List n/a n/a n/a -
Voice Memo n/a n/a n/a Yes
Software
Games n/a n/a n/a Yes
Java (J2ME) n/a n/a n/a Yes
Voice
HD Voice - - Yes -
Speaker Phone Yes Yes Yes Yes
  Apple iPhone 4 (CDMA) BlackBerry Curve 3G 9330 AT&T Vista ZTE Z331
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Phone Apple iPhone 4 (CDMA) BlackBerry Curve 3G 9330 AT&T Vista ZTE Z331

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