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Phone Nuu F4L Nokia Lumia 635 (CDMA) Huawei W1 Nokia 1661
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Not yet released Released Released Released
Specifications 
Display Size 2.8" diag.
4 : 3
4.5" diag.
16 : 9
4" diag.
5 : 3
1.8" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
(~143 ppi)
LCD (STN)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ?
Battery 1,350 mAh 1,830 mAh 1,950 mAh 860 mAh
Processor 1.1 GHz MediaTek MT6731 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) 1.2 GHz Qualcomm Snapdragon 400 MSM8230 ?
RAM 512 MB 512 MB 512 MB ?
Storage 4 GB 8 GB 4 GB ? raw hardware
Main Camera 2 megapixel 5 megapixel 5 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 720p HD 720p HD -
Front Camera Yes - Yes -
Weight 4.5 oz
(128g)
4.73 oz
(134g)
4.41 oz
(125g)
2.9 oz
(82g)
Dimensions 4.31" x 2.27" x 0.83"
(109 x 58 x 21 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
4.84" x 2.5" x 0.41"
(123 x 64 x 10.4 mm)
4.25" x 1.8" x 0.53"
(108 x 46 x 13.5 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Windows Windows (proprietary)
Network Bands

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

WCDMA: 2, 4, 5

GSM: 850, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

Data Technology LTE (Cat 4) LTE (Cat 3) HSPA+ 21 -
Features 
Flashlight Yes - - Yes
GPS / Location Yes n/a n/a -
Accessibility
Adjustable Text Size Yes n/a n/a -
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages Yes n/a n/a -
TTY/TDD (Digital) Yes Yes - -
Alerts
Extra Display Yes - - -
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes
Yes
Classic Audio
Yes
Classic Audio
-
Mobile Hotspot - n/a n/a -
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
-
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
4 (802.11 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 n/a -
Custom Ringtones - n/a n/a -
Real-Music Ringers - n/a n/a -
Data & Network
Data Tethering - n/a n/a -
WAP / Web Browser Yes n/a n/a -
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes -
Touch Screen - Yes Yes -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client Yes n/a n/a -
Instant Messaging Yes n/a n/a -
MMS Yes n/a n/a -
Text Messaging Templates Yes n/a n/a -
Music
FM Radio Yes Yes - Yes
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player Yes n/a n/a -
Photo & Video
DLNA - Yes - -
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a Yes
Calendar Yes n/a n/a Yes
To-Do List - n/a n/a -
Voice Memo Yes n/a n/a Yes
Software
Games - n/a n/a Yes
Voice
HD Voice Yes - - -
Headset Jack (2.5 mm) - n/a n/a Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Nuu F4L Nokia Lumia 635 (CDMA) Huawei W1 Nokia 1661
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Phone Nuu F4L Nokia Lumia 635 (CDMA) Huawei W1 Nokia 1661

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