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Phone Nuu F4L Sony Xperia Z1 / Z1s ZTE Z221 Kyocera 7135
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Not yet released Released Released Released
Specifications 
Display Size 2.8" diag.
4 : 3
5" diag.
16 : 9
2" diag.
4 : 3
?
Display Resolution & Type 240 x 320 pixels
(~143 ppi)
LCD (STN)
1080 x 1920 pixels
(~441 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
160 x 160 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? ?
Battery 1,350 mAh 3,000 mAh 900 mAh ?
Processor 1.1 GHz MediaTek MT6731 2.2 GHz Qualcomm Snapdragon 800 MSM8974 ? 33 MHz DragonBall
RAM 512 MB 2 GB ? ?
Storage 4 GB 32 GB * 142 MB ? raw hardware
Main Camera 2 megapixel 20 megapixel Yes -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 1080p HD QCIF (176 x 144) -
Front Camera Yes 2 megapixel - -
Weight 4.5 oz
(128g)
5.96 oz
(169g)
3.24 oz
(92g)
6.6 oz
(187g)
Dimensions 4.31" x 2.27" x 0.83"
(109 x 58 x 21 mm)
5.69" x 2.91" x 0.33"
(144 x 74 x 8.5 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
3.97" x 2.43" x 1.17"
(101 x 62 x 29.7 mm)
Form Factor Clamshell Slab Clamshell Clamshell
Platform / OS (proprietary) Android (proprietary) Palm OS
Network Bands

4G LTE: 2, 4, 5, 12, 13, 66

WCDMA: 2, 4, 5

GSM: 850, 1900

4G LTE: 4, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology LTE (Cat 4) HSPA+ 42 HSDPA 3.6 1xRTT
Features 
Flashlight Yes - - -
GPS / Location Yes n/a Yes n/a
Ruggedized - Yes - -
Water-Resistant - Yes - -
Accessibility
Adjustable Text Size Yes n/a - n/a
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display Yes - Yes Yes
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - - - Yes
MirrorLink - Yes - -
Mobile Hotspot - n/a - n/a
NFC - Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes n/a - n/a
Ringer ID Yes n/a - n/a
Voice Dialing - n/a - n/a
Customization
Custom Graphics Yes n/a Yes n/a
Custom Ringtones - n/a Yes n/a
Real-Music Ringers - n/a Yes n/a
Data & Network
Data Tethering - n/a - n/a
WAP / Web Browser Yes n/a Yes n/a
Input
Predictive Text Entry Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes - Yes
Memory
Memory Card Slot Yes Yes - Yes
Messaging
Email Client Yes n/a Yes n/a
Instant Messaging Yes n/a Yes n/a
MMS Yes n/a Yes n/a
Text Messaging Templates Yes n/a Yes n/a
Music
FM Radio Yes Yes - -
Headphone Jack (3.5mm) Yes Yes - -
Music Player Yes n/a - n/a
Photo & Video
DLNA - Yes - -
Miracast - Yes - -
TV Output - Yes - -
Productivity
Alarm Yes n/a Yes n/a
Calculator Yes n/a Yes n/a
Calendar Yes n/a Yes n/a
To-Do List - n/a - n/a
Voice Memo Yes n/a Yes n/a
Software
Games - n/a Yes n/a
Java (J2ME) - n/a Yes n/a
Voice
HD Voice Yes - - -
Headset Jack (2.5 mm) - n/a - n/a
Speaker Phone Yes Yes Yes Yes
  Nuu F4L Sony Xperia Z1 / Z1s ZTE Z221 Kyocera 7135
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Phone Nuu F4L Sony Xperia Z1 / Z1s ZTE Z221 Kyocera 7135

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