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Phone Samsung Galaxy Reverb CAT S61 Ericsson R520 Motorola Rival A455 Ericsson T66
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
5.2" diag.
16 : 9
? 2.2" diag.
4 : 3
?
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
? 176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
?
Display Refresh 60 Hz 60 Hz ? ? ?
Battery 1,700 mAh 4,500 mAh ? 940 mAh ?
Processor 1.4 GHz Qualcomm S2 MSM8655 2.2 GHz Qualcomm Snapdragon 630 ? ? ?
RAM 768 MB 4 GB ? ? ?
Storage 4 GB 64 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera 5 megapixel 16 megapixel - 2 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture WVGA / 480p 4K UHD - QVGA (320 x 240) -
Front Camera 1 megapixel 8 megapixel - - -
Weight 4.54 oz
(129g)
9.03 oz
(256g)
4.23 oz
(120g)
4.48 oz
(127g)
2.08 oz
(59g)
Dimensions 4.82" x 2.53" x 0.44"
(122 x 64 x 11.3 mm)
5.91" x 2.99" x 0.51"
(150 x 76 x 13 mm)
5.12" x 1.97" x 0.63"
(130 x 50 x 16 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Slab Slab Slab Slide Slab
Platform / OS Android Android (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 25, 26, 28, 29, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

GSM: 900, 1800, 1900

Data Technology EVDO rA LTE (Cat 13) GPRS EVDO r0 -
Features 
Barometer - Yes - - -
Flashlight - Yes - - -
GPS / Location n/a n/a - Yes -
Ruggedized - Yes - - -
Water-Resistant - Yes
IPX8 (SCUBA)
- - -
Accessibility
Adjustable Text Size n/a n/a - - -
Hearing Aid Compatible Yes Yes - Yes -
Multiple Languages n/a n/a Yes Yes Yes
TTY/TDD (Digital) Yes - - Yes -
Alerts
Ringer Profiles - - Yes - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
HSP, Sync, OPP, DUN
Yes
Classic Audio
-
Infrared (IR) - - Yes - -
NFC - Yes - - -
USB Yes Yes
USB Type C
- Yes
Micro-USB
-
Wi-Fi Yes
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- - -
Contacts
Picture ID n/a n/a - Yes -
Ringer ID n/a n/a - Yes -
Voice Dialing n/a n/a Yes Yes -
Customization
Custom Graphics n/a n/a - Yes Yes
Custom Ringtones n/a n/a Yes Yes Yes
Real-Music Ringers n/a n/a - Yes -
Data & Network
Data Tethering n/a n/a Yes Yes -
Dual-SIM - Yes * - - -
WAP / Web Browser n/a n/a Yes Yes Yes
Input
Predictive Text Entry n/a n/a Yes - Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes Yes - Yes -
Memory
Memory Card Slot Yes Yes - Yes -
Messaging
Email Client n/a n/a - Yes -
EMS / Picture Messaging n/a n/a - Yes Yes
Instant Messaging n/a n/a - Yes -
MMS n/a n/a - Yes -
Text Messaging Templates n/a n/a Yes Yes Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) Yes Yes - Yes -
Music Player n/a n/a - Yes -
Power
Fast Charging - Yes - - -
Productivity
Alarm n/a n/a Yes Yes Yes
Calculator n/a n/a Yes Yes Yes
Calendar n/a n/a Yes Yes Yes
To-Do List n/a n/a - - Yes
Voice Memo n/a n/a Yes Yes -
Software
BREW n/a n/a - Yes -
Games n/a n/a Yes Yes Yes
Voice
Speaker Phone Yes Yes Yes Yes -
  * Some versions only
  Samsung Galaxy Reverb CAT S61 Ericsson R520 Motorola Rival A455 Ericsson T66
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Galaxy Reverb CAT S61 Ericsson R520 Motorola Rival A455 Ericsson T66

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