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Phone Samsung SGH-E640 Nokia Lumia 635 (CDMA) Samsung Galaxy Reverb
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size ? 4.5" diag.
16 : 9
4" diag.
5 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz
Battery 800 mAh 1,830 mAh 1,700 mAh
Processor ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) 1.4 GHz Qualcomm S2 MSM8655
RAM ? 512 MB 768 MB
Storage ? raw hardware 8 GB 4 GB
Main Camera 1 megapixel 5 megapixel 5 megapixel
Wide Camera - - -
Tele Camera - - -
Video Capture QCIF (176 x 144) 720p HD WVGA / 480p
Front Camera - - 1 megapixel
Weight 3.17 oz
(90g)
4.73 oz
(134g)
4.54 oz
(129g)
Dimensions 3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
4.82" x 2.53" x 0.44"
(122 x 64 x 11.3 mm)
Form Factor Clamshell Slab Slab
Platform / OS (proprietary) Windows Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 1900

Data Technology GPRS LTE (Cat 3) EVDO rA
Features 
GPS / Location - n/a n/a
Accessibility
Adjustable Text Size - n/a n/a
Hearing Aid Compatible - Yes Yes
Multiple Languages Yes n/a n/a
TTY/TDD (Digital) - Yes Yes
Alerts
Extra Display Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - n/a n/a
USB Yes 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 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 Yes n/a n/a
Real-Music Ringers Yes 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
Side Keys Yes Yes Yes
Touch Screen - Yes Yes
Memory
Memory Card Slot - Yes Yes
Messaging
Email Client Yes n/a n/a
EMS / Picture Messaging Yes n/a n/a
Instant Messaging - n/a n/a
MMS Yes n/a n/a
Text Messaging Templates Yes n/a n/a
Music
FM Radio - Yes -
Headphone Jack (3.5mm) - Yes Yes
Music Player Yes n/a n/a
Photo & Video
DLNA - Yes -
Productivity
Alarm Yes n/a n/a
Calculator Yes n/a n/a
Calendar Yes n/a n/a
To-Do List Yes n/a n/a
Voice Memo Yes n/a n/a
Software
Games Yes n/a n/a
Java (J2ME) Yes n/a n/a
Voice
Speaker Phone Yes Yes Yes
  * Some versions only
  Samsung SGH-E640 Nokia Lumia 635 (CDMA) Samsung Galaxy Reverb
  X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-E640 Nokia Lumia 635 (CDMA) Samsung Galaxy Reverb

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