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Phone Nuu F4L Nokia Lumia 920 Samsung SGH-A657 Samsung Jitterbug J / SPH-A310
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.
5 : 3
? 2.1" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
(~143 ppi)
LCD (STN)
768 x 1280 pixels
(~332 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (Color)
Display Refresh 60 Hz ? ? ?
Battery 1,350 mAh 2,000 mAh 1,420 mAh ?
Processor 1.1 GHz MediaTek MT6731 1.5 GHz Qualcomm Snapdragon S4 ? ?
RAM 512 MB 1 GB ? ?
Storage 4 GB 32 GB ? raw hardware ? raw hardware
Main Camera 2 megapixel 8 megapixel - -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 1080p HD - -
Front Camera Yes 1 megapixel - -
Weight 4.5 oz
(128g)
6.53 oz
(185g)
4.34 oz
(123g)
3.99 oz
(113g)
Dimensions 4.31" x 2.27" x 0.83"
(109 x 58 x 21 mm)
5.12" x 2.79" x 0.42"
(130 x 71 x 10.7 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
3.87" x 2.16" x 0.97"
(98 x 55 x 24.6 mm)
Form Factor Clamshell Slab Slab Clamshell
Platform / OS (proprietary) Windows (proprietary) (proprietary)
Network Bands

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

WCDMA: 2, 4, 5

GSM: 850, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 4) LTE (Cat 3) HSDPA 3.6 -
Features 
Flashlight Yes - Yes -
GPS / Location Yes n/a Yes Yes
Ruggedized - - Yes -
Accessibility
Adjustable Text Size Yes n/a - -
Hearing Aid Compatible Yes Yes - Yes
Multiple Languages Yes n/a Yes -
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display Yes - - Yes
Connectivity
Bluetooth Yes
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - n/a - -
NFC - Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes -
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 a,b,g,n)
- -
Contacts
Picture ID Yes n/a Yes -
Ringer ID Yes n/a Yes -
Voice Dialing - n/a - Yes
Customization
Custom Graphics Yes n/a Yes -
Custom Ringtones - n/a Yes -
Real-Music Ringers - n/a Yes -
Data & Network
Data Tethering - n/a Yes -
WAP / Web Browser Yes n/a Yes -
Input
Predictive Text Entry Yes n/a Yes -
Side Keys Yes Yes Yes Yes
Touch Screen - Yes - -
Memory
Memory Card Slot Yes - Yes -
Messaging
Email Client Yes n/a Yes -
Instant Messaging Yes n/a Yes -
MMS Yes n/a Yes -
Text Messaging Templates Yes n/a Yes Yes
Music
FM Radio Yes - - -
Headphone Jack (3.5mm) Yes Yes - -
Music Player Yes n/a Yes -
Power
Wireless Charging - Yes - -
Productivity
Alarm Yes n/a Yes -
Calculator Yes n/a Yes -
Calendar Yes n/a Yes -
To-Do List - n/a Yes -
Voice Memo Yes n/a Yes -
Software
Games - n/a Yes -
Java (J2ME) - n/a Yes -
Voice
HD Voice Yes - - -
Push-To-Talk - - Yes -
Speaker Phone Yes Yes Yes Yes
  Nuu F4L Nokia Lumia 920 Samsung SGH-A657 Samsung Jitterbug J / SPH-A310
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Phone Nuu F4L Nokia Lumia 920 Samsung SGH-A657 Samsung Jitterbug J / SPH-A310

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