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Phone Nokia 1606 BlackBerry Classic (CDMA) Samsung SCH-A990 Nokia Lumia 635 (CDMA) Samsung PM-A840
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
3.5" diag.
1 : 1
? 4.5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
720 x 720 pixels
(~291 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
Display Refresh ? ? ? ? ?
Battery ? 2,515 mAh 1,000 mAh 1,830 mAh ?
Processor ? 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) ?
RAM ? 2 GB ? 512 MB ?
Storage ? raw hardware 16 GB ? raw hardware 8 GB ? raw hardware
Main Camera - 8 megapixel 3 megapixel 5 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD ? 720p HD -
Front Camera - 2 megapixel - - -
Weight 2.68 oz
(76g)
6.28 oz
(178g)
4.4 oz
(125g)
4.73 oz
(134g)
3.28 oz
(93g)
Dimensions 3.3" x 1.73" x 0.63"
(84 x 44 x 16 mm)
5.16" x 2.85" x 0.4"
(131 x 72 x 10.2 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
3.54" x 1.85" x 0.94"
(90 x 47 x 23.9 mm)
Form Factor Clamshell Slab Clamshell Slab Clamshell
Platform / OS (proprietary) BlackBerry 10 (proprietary) Windows (proprietary)
Network Bands

CDMA: 850, 1700, 1900

4G LTE: 3, 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology 1xRTT LTE (Cat 3) EVDO r0 LTE (Cat 3) 1xRTT
Features 
Flashlight Yes - Yes - -
GPS / Location Yes n/a Yes n/a Yes
Accessibility
Adjustable Text Size - n/a - n/a -
Hearing Aid Compatible - Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages - n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display Yes - Yes - Yes
Ringer Profiles - Yes - - -
Connectivity
Bluetooth - Yes Yes Yes -
Mobile Hotspot - n/a - n/a -
NFC - Yes - - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Micro-USB
-
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID - n/a Yes n/a Yes
Ringer ID - n/a Yes n/a Yes
Voice Dialing Yes n/a Yes n/a Yes
Customization
Custom Graphics Yes n/a Yes n/a Yes
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers - n/a Yes n/a -
Data & Network
Data Tethering - n/a Yes n/a -
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen - Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client - n/a - n/a -
EMS / Picture Messaging - n/a Yes n/a -
Instant Messaging - n/a - n/a -
MMS Yes n/a Yes n/a -
Text Messaging Templates - n/a Yes n/a Yes
Music
FM Radio - Yes - Yes -
Headphone Jack (3.5mm) - Yes - Yes -
Music Player - n/a Yes n/a -
Stereo Speakers - - Yes - -
Photo & Video
DLNA - Yes - Yes -
Miracast - Yes - - -
TV Output - Yes Yes - -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a - n/a Yes
Voice Memo Yes n/a Yes n/a Yes
Software
BREW Yes n/a Yes n/a -
Games Yes n/a Yes n/a Yes
Java (J2ME) - n/a - n/a Yes
Voice
Headset Jack (2.5 mm) Yes n/a - n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Nokia 1606 BlackBerry Classic (CDMA) Samsung SCH-A990 Nokia Lumia 635 (CDMA) Samsung PM-A840
  X > < X > < X > < X > < X

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

 
Phone Nokia 1606 BlackBerry Classic (CDMA) Samsung SCH-A990 Nokia Lumia 635 (CDMA) Samsung PM-A840

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