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Phone ZTE Prelude / Avail 2 Samsung Sway U650 Asus ROG Phone BlackBerry Curve 3G 9330
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
2.2" diag.
4 : 3
6" diag.
18 : 9
2.5" diag.
4 : 3
Display Resolution & Type 320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~402 ppi)
AMOLED
320 x 240 pixels
(~160 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery 1,500 mAh ? 4,000 mAh 1,150 mAh
Processor 1 GHz Qualcomm Snapdragon MSM7225A ? 3 GHz Qualcomm Snapdragon 845 ?
RAM 512 MB ? 8 GB ?
Storage 4 GB ? raw hardware 128 GB * ? raw hardware
Main Camera 2 megapixel 2 megapixel 12 megapixel 2 megapixel
Wide Camera - - 8 megapixel -
Tele Camera - - - -
Video Capture VGA (640 x 480) ? 4K UHD ?
Front Camera - - 8 megapixel -
Weight 4.4 oz
(125g)
3.56 oz
(101g)
7.05 oz
(200g)
3.7 oz
(105g)
Dimensions 4.6" x 2.44" x 0.45"
(117 x 62 x 11.4 mm)
4.15" x 1.96" x 0.47"
(105 x 50 x 11.9 mm)
6.25" x 3" x 0.34"
(159 x 76 x 8.6 mm)
4.29" x 2.36" x 0.55"
(109 x 60 x 14 mm)
Form Factor Slab Slide Slab Slab
Platform / OS Android (proprietary) Android BlackBerry OS
Network Bands

WCDMA: 2, 5

GSM: 850, 1900

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34, 38, 39, 40, 41, 46

WCDMA: 1, 2, 3, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology HSPA 7.2 1xRTT LTE (Cat 16) EVDO r0
Features 
Fingerprint Reader - - Yes -
Flashlight - - Yes -
GPS / Location n/a Yes n/a n/a
Water-Resistant - - Yes -
Accessibility
Adjustable Text Size n/a Yes n/a n/a
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M4 (very compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a Yes n/a n/a
TTY/TDD (Digital) Yes Yes - Yes
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
NFC - - Yes -
USB Yes Yes Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
Contacts
Picture ID n/a Yes n/a n/a
Ringer ID n/a Yes n/a n/a
Voice Dialing n/a Yes n/a n/a
Customization
Custom Graphics n/a Yes n/a n/a
Custom Ringtones n/a Yes n/a n/a
Real-Music Ringers n/a Yes n/a n/a
Data & Network
Data Tethering n/a - n/a n/a
Dual-SIM - - Yes -
WAP / Web Browser n/a Yes n/a n/a
Input
Predictive Text Entry n/a Yes n/a n/a
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 Yes n/a n/a
EMS / Picture Messaging n/a Yes n/a n/a
Instant Messaging n/a Yes n/a n/a
MMS n/a Yes n/a n/a
Text Messaging Templates n/a Yes n/a n/a
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) Yes - Yes Yes
Music Player n/a Yes n/a n/a
Stereo Speakers - - Yes -
Photo & Video
TV Output - - Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm n/a Yes n/a n/a
Calculator n/a Yes n/a n/a
Calendar n/a Yes n/a n/a
To-Do List n/a - n/a n/a
Voice Memo n/a Yes n/a n/a
Software
BREW n/a Yes n/a n/a
Games n/a Yes n/a n/a
Java (J2ME) n/a - n/a n/a
Voice
Speaker Phone Yes Yes Yes Yes
  ZTE Prelude / Avail 2 Samsung Sway U650 Asus ROG Phone BlackBerry Curve 3G 9330
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Prelude / Avail 2 Samsung Sway U650 Asus ROG Phone BlackBerry Curve 3G 9330

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