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Phone HTC EVO Shift 4G Samsung SGH-A657 Nokia Lumia 635 (CDMA) Cricket Debut S2 / AT&T Calypso 4 Motorola Rival A455
Current U.S. Carriers (none) (none) (none) AT&T (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.6" diag.
5 : 3
? 4.5" diag.
16 : 9
6.1" diag.
19.5 : 9
2.2" diag.
4 : 3
Display Resolution & Type 480 x 800 pixels
(~259 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? 60 Hz ?
Battery 1,500 mAh 1,420 mAh 1,830 mAh 3,000 mAh 940 mAh
Processor 800 MHz Qualcomm S2 MSM7630 ? 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) 2 GHz MediaTek Helio A22 (MT6761WB) ?
RAM ? ? 512 MB 3 GB ?
Storage ? raw hardware ? raw hardware 8 GB 64 GB ? raw hardware
Main Camera 5 megapixel - 5 megapixel 8 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD - 720p HD ? QVGA (320 x 240)
Front Camera - - - 5 megapixel -
Weight 5.87 oz
(166g)
4.34 oz
(123g)
4.73 oz
(134g)
5.64 oz
(160g)
4.48 oz
(127g)
Dimensions 4.6" x 2.32" x 0.61"
(117 x 59 x 15.5 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
5.1" x 2.63" x 0.36"
(130 x 67 x 9.1 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
Form Factor Slide Slab Slab Slab Slide
Platform / OS Android (proprietary) Windows Android (proprietary)
Network Bands

4G WiMAX: 41

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 25, 26, 41

WCDMA: 1, 2, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 850, 1900

Data Technology WiMAX HSDPA 3.6 LTE (Cat 3) LTE (Cat 4) EVDO r0
Features 
Flashlight Yes Yes - Yes -
GPS / Location n/a Yes n/a n/a Yes
Ruggedized - Yes - - -
Accessibility
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages n/a Yes n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot n/a - n/a n/a -
USB Yes
Micro-USB
Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a Yes n/a n/a Yes
Ringer ID n/a Yes n/a n/a Yes
Voice Dialing n/a - n/a n/a Yes
Customization
Custom Graphics n/a Yes n/a n/a Yes
Custom Ringtones n/a Yes n/a n/a Yes
Real-Music Ringers n/a Yes n/a n/a Yes
Data & Network
Data Tethering n/a Yes n/a n/a Yes
WAP / Web Browser n/a Yes n/a n/a Yes
Input
Predictive Text Entry n/a Yes n/a n/a -
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - Yes
Touch Screen Yes - Yes Yes Yes
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client n/a Yes n/a n/a Yes
EMS / Picture Messaging n/a - n/a n/a Yes
Instant Messaging n/a Yes n/a n/a Yes
MMS n/a Yes n/a n/a Yes
Text Messaging Templates n/a Yes n/a n/a Yes
Music
FM Radio Yes - Yes - -
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Music Player n/a Yes n/a n/a Yes
Photo & Video
DLNA - - Yes - -
Power
Fast Charging - - - Yes -
Productivity
Alarm n/a Yes n/a n/a Yes
Calculator n/a Yes n/a n/a Yes
Calendar n/a Yes n/a n/a Yes
To-Do List n/a Yes n/a n/a -
Voice Memo n/a Yes n/a n/a Yes
Software
BREW n/a - n/a n/a Yes
Games n/a Yes n/a n/a Yes
Java (J2ME) n/a Yes n/a n/a -
Voice
HD Voice - - - Yes -
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  HTC EVO Shift 4G Samsung SGH-A657 Nokia Lumia 635 (CDMA) Cricket Debut S2 / AT&T Calypso 4 Motorola Rival A455
  X > < X > < X > < X > < X

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

 
Phone HTC EVO Shift 4G Samsung SGH-A657 Nokia Lumia 635 (CDMA) Cricket Debut S2 / AT&T Calypso 4 Motorola Rival A455

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