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Phone ZTE Concord II BlackBerry Z10 (CDMA) Nokia Lumia 521 / 520 Nokia N76 Nokia 6650 fold
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
4.2" diag.
5 : 3
4" diag.
5 : 3
2.4" diag.
4 : 3
2.2" diag.
4 : 3
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
768 x 1280 pixels
(~355 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ? ?
Battery 1,820 mAh 1,800 mAh 1,430 mAh 700 mAh 1,500 mAh
Processor 1.2 GHz Qualcomm MSM8210 1.5 GHz Qualcomm Snapdragon S4 1 GHz Qualcomm Snapdragon S4 MSM8270 ? 369 MHz ARM 11
RAM 1 GB 2 GB 512 MB ? ?
Storage 4 GB 16 GB 8 GB ? raw hardware ? raw hardware
Main Camera 5 megapixel 8 megapixel 5 megapixel 2 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD 1080p HD 720p HD QVGA (320 x 240) QVGA (320 x 240)
Front Camera - 2 megapixel - - -
Weight 4.4 oz
(125g)
4.78 oz
(135g)
4.39 oz
(124g)
4.06 oz
(115g)
3.95 oz
(112g)
Dimensions 4.96" x 2.56" x 0.42"
(126 x 65 x 10.7 mm)
5.12" x 2.58" x 0.35"
(130 x 66 x 9 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.19" x 2.05" x 0.54"
(106 x 52 x 13.7 mm)
3.93" x 1.86" x 0.64"
(100 x 47 x 16.2 mm)
Platform / OS Android BlackBerry 10 Windows S60 (Symbian) S60 (Symbian)
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 13

WCDMA: 1, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 1

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

*

Data Technology HSPA+ 21 LTE (Cat 3) HSPA+ 21 EDGE HSDPA 3.6
Features 
Accessibility
Hearing Aid Compatible Yes - Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes - -
Alerts
Extra Display - - - Yes Yes
Ringer Profiles - Yes - Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
NFC - Yes - - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Mini-USB
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
Yes - -
Input
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes Yes Yes - -
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) Yes Yes Yes - -
Photo & Video
DLNA - Yes - - -
TV Output - Yes - - -
Voice
HD Voice Yes - - - -
Push-To-Talk - - - Yes * -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  ZTE Concord II BlackBerry Z10 (CDMA) Nokia Lumia 521 / 520 Nokia N76 Nokia 6650 fold
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone ZTE Concord II BlackBerry Z10 (CDMA) Nokia Lumia 521 / 520 Nokia N76 Nokia 6650 fold

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