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Phone Siemens CF75 Amazon Fire Bold N2 BlackBerry Key2 ZTE Concord II
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size ? 4.7" diag.
16 : 9
6.6" diag.
19.5 : 9
4.5" diag.
5 : 3
4" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (STN)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~390 ppi)
AMOLED
1080 x 1620 pixels
(~433 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 600 mAh 2,400 mAh 4,200 mAh 3,500 mAh 1,820 mAh
Processor ? 2.2 GHz Qualcomm Snapdragon 800 2.4 GHz MediaTek Dimensity 810 2.2 GHz Qualcomm Snapdragon 660 1.2 GHz Qualcomm MSM8210
RAM ? 2 GB 8 GB 6 GB 1 GB
Storage ? raw hardware 32 GB * 256 GB 64 GB * 4 GB
Main Camera Yes 13 megapixel 64 megapixel 12 megapixel 5 megapixel
Wide Camera - - 5 megapixel - -
Tele Camera - - - 12 megapixel -
Video Capture - 1080p HD 2K / Quad HD 4K UHD 720p HD
Front Camera - 2 megapixel 16 megapixel 8 megapixel -
Weight 3.17 oz
(90g)
5.64 oz
(160g)
7.2 oz
(204g)
5.93 oz
(168g)
4.4 oz
(125g)
Dimensions 3.43" x 1.73" x 1.26"
(87 x 44 x 32 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
6.64" x 3.02" x 0.35"
(169 x 77 x 8.9 mm)
5.96" x 2.82" x 0.33"
(151 x 72 x 8.4 mm)
4.96" x 2.56" x 0.42"
(126 x 65 x 10.7 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

5G: 2, 5, 25, 41, 66, 71, 77-C

4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology EDGE LTE (Cat 4) NR (5G) LTE (Cat 11) HSPA+ 21
Features 
Fingerprint Reader - - Yes
in-display (optical)
Yes
stand-alone
-
Flashlight - Yes Yes 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
Alerts
Extra Display Yes - - - -
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - - -
Mobile Hotspot - Yes n/a n/a n/a
NFC - Yes - Yes -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID - Yes n/a n/a n/a
Ringer ID - Yes n/a n/a n/a
Voice Dialing - Yes n/a n/a n/a
Customization
Custom Graphics Yes - n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - - 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 Yes
Memory
Memory Card Slot - - - Yes Yes
Messaging
Email Client Yes Yes n/a n/a n/a
EMS / Picture Messaging Yes - n/a n/a n/a
Instant Messaging - - 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
Music Player - Yes n/a n/a n/a
Stereo Speakers - Yes - - -
Photo & Video
Miracast - Yes - - -
TV Output - Yes - Yes -
Power
Fast Charging - - Yes 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 - n/a n/a n/a
Voice
HD Voice - Yes Yes Yes Yes
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  Siemens CF75 Amazon Fire Bold N2 BlackBerry Key2 ZTE Concord II
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Phone Siemens CF75 Amazon Fire Bold N2 BlackBerry Key2 ZTE Concord II

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