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Phone Huawei W1 Nokia Lumia 635 (CDMA) Samsung SGH-X640 BlackBerry 7750
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
4.5" diag.
16 : 9
? ?
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
240 x 240 pixels
LCD (Color)
Display Refresh ? ? ? ?
Battery 1,950 mAh 1,830 mAh 800 mAh ?
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8230 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) ? ?
RAM 512 MB 512 MB ? ?
Storage 4 GB 8 GB ? raw hardware ? raw hardware
Main Camera 5 megapixel 5 megapixel Yes -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 720p HD - -
Front Camera Yes - - -
Weight 4.41 oz
(125g)
4.73 oz
(134g)
3 oz
(85g)
5.01 oz
(142g)
Dimensions 4.84" x 2.5" x 0.41"
(123 x 64 x 10.4 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.76" x 3.03" x 0.71"
(121 x 77 x 18 mm)
Form Factor Slab Slab Clamshell Slab
Platform / OS Windows Windows (proprietary) BlackBerry OS
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

Data Technology HSPA+ 21 LTE (Cat 3) GPRS 1xRTT
Features 
GPS / Location n/a n/a - n/a
Accessibility
Adjustable Text Size n/a n/a - n/a
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M3, T4 (very tele-coil compatible)
- -
Multiple Languages n/a n/a Yes n/a
TTY/TDD (Digital) - Yes - Yes
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes - -
Mobile Hotspot n/a n/a - n/a
USB Yes
Micro-USB
Yes
Micro-USB
- Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID n/a n/a Yes n/a
Ringer ID n/a n/a Yes n/a
Voice Dialing n/a n/a - n/a
Customization
Custom Graphics n/a n/a Yes n/a
Custom Ringtones n/a n/a Yes n/a
Real-Music Ringers n/a n/a - n/a
Data & Network
Data Tethering n/a n/a - n/a
WAP / Web Browser n/a n/a Yes n/a
Input
Predictive Text Entry n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen Yes
Capacitive
Yes
Capacitive
- -
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client n/a n/a - n/a
EMS / Picture Messaging n/a n/a Yes n/a
Instant Messaging n/a n/a - n/a
MMS n/a n/a Yes n/a
Text Messaging Templates n/a n/a Yes n/a
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) Yes Yes - -
Music Player n/a n/a - n/a
Photo & Video
DLNA - Yes - -
Productivity
Alarm n/a n/a Yes n/a
Calculator n/a n/a Yes n/a
Calendar n/a n/a Yes n/a
To-Do List n/a n/a Yes n/a
Voice Memo n/a n/a Yes n/a
Software
Games n/a n/a Yes n/a
Java (J2ME) n/a n/a Yes n/a
Voice
Headset Jack (2.5 mm) n/a n/a Yes n/a
Speaker Phone Yes Yes Yes -
  * Some versions only
  Huawei W1 Nokia Lumia 635 (CDMA) Samsung SGH-X640 BlackBerry 7750
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Phone Huawei W1 Nokia Lumia 635 (CDMA) Samsung SGH-X640 BlackBerry 7750

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