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Phone Samsung Zeal / Alias 2 SCH-U750 Amazon Fire Motorola KRZR K1m TCL 20 SE BlackBerry Z10 (CDMA)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.6" diag.
4 : 3
4.7" diag.
16 : 9
? 6.8" diag.
20.5 : 9
4.2" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
(~154 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
720 x 1640 pixels
(~263 ppi)
LCD (TFT/TFD)
768 x 1280 pixels
(~355 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery 880 mAh 2,400 mAh 880 mAh 5,000 mAh 1,800 mAh
Processor ? 2.2 GHz Qualcomm Snapdragon 800 ? 1.6 GHz Qualcomm Snapdragon 460 1.5 GHz Qualcomm Snapdragon S4
RAM ? 2 GB ? 4 GB 2 GB
Storage ? raw hardware 32 GB * ? raw hardware 128 GB 16 GB
Main Camera 2 megapixel 13 megapixel 1 megapixel 48 megapixel 8 megapixel
Wide Camera - - - 5 megapixel -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 1080p HD ? 1080p HD 1080p HD
Front Camera - 2 megapixel - 13 megapixel 2 megapixel
Weight 4.34 oz
(123g)
5.64 oz
(160g)
3.63 oz
(103g)
7.31 oz
(207g)
4.78 oz
(135g)
Dimensions 4.01" x 2.04" x 0.67"
(102 x 52 x 17 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
4.06" x 1.73" x 0.67"
(103 x 44 x 17 mm)
6.78" x 3.04" x 0.35"
(172 x 77 x 8.9 mm)
5.12" x 2.58" x 0.35"
(130 x 66 x 9 mm)
Form Factor Clamshell Slab Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android BlackBerry 10
Network Bands

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 26, 28, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 13

WCDMA: 1, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 LTE (Cat 4) EVDO r0 LTE (Cat 4) LTE (Cat 3)
Features 
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - Yes - Yes -
GPS / Location Yes Yes Yes n/a n/a
Accessibility
Adjustable Text Size Yes - - n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes -
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes - Yes - -
Ringer Profiles - - Yes - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot - Yes - n/a n/a
NFC - Yes - - Yes
USB Yes Yes
Micro-USB
Yes
Mini-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes Yes Yes n/a n/a
Ringer ID Yes Yes Yes n/a n/a
Voice Dialing Yes Yes Yes n/a n/a
Customization
Custom Graphics Yes - Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers Yes - - n/a n/a
Data & Network
Data Tethering Yes Yes Yes n/a n/a
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen - Yes - Yes Yes
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client Yes Yes - n/a n/a
EMS / Picture Messaging - - Yes n/a n/a
Instant Messaging Yes - Yes * n/a n/a
MMS Yes Yes Yes n/a n/a
Text Messaging Templates Yes Yes Yes n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player Yes Yes Yes n/a n/a
Stereo Speakers - Yes - - -
Photo & Video
DLNA - - - - Yes
Miracast - Yes - - -
TV Output - Yes - - Yes
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List - - - n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
BREW Yes - Yes * n/a n/a
Games Yes Yes Yes n/a n/a
Java (J2ME) - - Yes * n/a n/a
Voice
HD Voice - Yes - Yes -
Headset Jack (2.5 mm) Yes - - n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Zeal / Alias 2 SCH-U750 Amazon Fire Motorola KRZR K1m TCL 20 SE BlackBerry Z10 (CDMA)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Zeal / Alias 2 SCH-U750 Amazon Fire Motorola KRZR K1m TCL 20 SE BlackBerry Z10 (CDMA)

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