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Phone AT&T Maestro 3 BlackBerry Z10 (GSM) Kyocera Brigadier Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
4.2" diag.
5 : 3
4.5" diag.
16 : 9
4" diag.
5 : 3
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
768 x 1280 pixels
(~355 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~326 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery 3,900 mAh 1,800 mAh 3,100 mAh 1,430 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761) 1.5 GHz Qualcomm Snapdragon S4 1.4 GHz Qualcomm Snapdragon 400 MSM8928 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM 3 GB 2 GB 2 GB 512 MB
Storage 32 GB 16 GB 16 GB 8 GB
Main Camera 13 megapixel 8 megapixel 8 megapixel 5 megapixel
Wide Camera 5 megapixel - - -
Tele Camera - - - -
Video Capture 1080p HD 1080p HD 1080p HD 720p HD
Front Camera 5 megapixel 2 megapixel 2 megapixel -
Weight 6.24 oz
(177g)
4.85 oz
(137g)
6.6 oz
(187g)
4.39 oz
(124g)
Dimensions 6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
5.12" x 2.58" x 0.35"
(130 x 66 x 9 mm)
5.37" x 2.69" x 0.52"
(136 x 68 x 13.2 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Platform / OS Android BlackBerry 10 Android Windows
Network Bands

4G LTE: 2, 4, 5, 12, 14, 30

4G LTE: 2, 4, 5, 17

WCDMA: 1, 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

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 4) LTE (Cat 3) LTE (Cat 3) HSPA+ 21
Features 
Barometer Yes - - -
Fingerprint Reader Yes
stand-alone
- - -
Flashlight Yes - Yes -
Ruggedized - - Yes -
Water-Resistant - - Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes Yes
Alerts
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
NFC - Yes Yes -
USB Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
Input
Side Keys Yes Yes Yes Yes
Touch Screen Yes Yes Yes Yes
Memory
Memory Card Slot Yes Yes Yes Yes
Music
Headphone Jack (3.5mm) Yes Yes Yes Yes
Photo & Video
DLNA - Yes - -
Miracast - - Yes -
TV Output - Yes - -
Power
Wireless Charging - - Yes -
Voice
HD Voice Yes - - -
Push-To-Talk - - Yes -
Speaker Phone Yes Yes Yes Yes
  AT&T Maestro 3 BlackBerry Z10 (GSM) Kyocera Brigadier Nokia Lumia 521 / 520
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Phone AT&T Maestro 3 BlackBerry Z10 (GSM) Kyocera Brigadier Nokia Lumia 521 / 520

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