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Phone Samsung SPH-A520 Palm Treo 600 (CDMA) Samsung SGH-A657 Motorola Moto X (CDMA, 2nd gen.) Motorola Rival A455
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? ? 5.2" diag.
16 : 9
2.2" diag.
4 : 3
Display Resolution & Type ?
LCD (STN)
160 x 160 pixels
LCD (Color)
176 x 220 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
AMOLED
176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery ? ? 1,420 mAh 2,300 mAh 940 mAh
Processor ? ? ? 2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC) ?
RAM ? ? ? 2 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 16 GB * ? raw hardware
Main Camera - Yes - 13 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - - 4K UHD QVGA (320 x 240)
Front Camera - - - 2 megapixel -
Weight 3.6 oz
(102g)
6.2 oz
(176g)
4.34 oz
(123g)
5.08 oz
(144g)
4.48 oz
(127g)
Dimensions 3.46" x 1.83" x 0.91"
(88 x 46 x 23.1 mm)
4.41" x 2.36" x 0.87"
(112 x 60 x 22.1 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
5.54" x 2.85" x 0.39"
(141 x 72 x 9.9 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
Form Factor Clamshell Slab Slab Slab Slide
Platform / OS (proprietary) Palm OS (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 7, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

Data Technology 1xRTT 1xRTT HSDPA 3.6 LTE (Cat 4) EVDO r0
Features 
Flashlight - - Yes - -
GPS / Location Yes n/a Yes n/a Yes
Ruggedized - - Yes - -
Accessibility
Adjustable Text Size - n/a - n/a -
Hearing Aid Compatible - - - Yes Yes
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display Yes - - - -
Connectivity
Bluetooth - - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - - -
Mobile Hotspot - n/a - n/a -
NFC - - - Yes -
USB - Yes Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a Yes
Ringer ID Yes n/a Yes n/a Yes
Voice Dialing Yes n/a - 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 Yes
Data & Network
Data Tethering Yes n/a Yes n/a Yes
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a -
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - Yes
Touch Screen - Yes - Yes Yes
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a Yes n/a Yes
EMS / Picture Messaging - n/a - n/a Yes
Instant Messaging - n/a Yes n/a Yes
MMS - n/a Yes n/a Yes
Text Messaging Templates - n/a Yes n/a Yes
Music
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - n/a Yes n/a Yes
Photo & Video
Miracast - - - Yes -
Power
Fast Charging - - - 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 Yes n/a -
Voice Memo Yes n/a Yes n/a Yes
Software
BREW - n/a - n/a Yes
Games Yes n/a Yes n/a Yes
Java (J2ME) - n/a Yes n/a -
Voice
Headset Jack (2.5 mm) Yes n/a - n/a -
Push-To-Talk - - Yes - -
Speaker Phone - Yes Yes Yes Yes
  Samsung SPH-A520 Palm Treo 600 (CDMA) Samsung SGH-A657 Motorola Moto X (CDMA, 2nd gen.) Motorola Rival A455
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SPH-A520 Palm Treo 600 (CDMA) Samsung SGH-A657 Motorola Moto X (CDMA, 2nd gen.) Motorola Rival A455

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