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Phone Samsung SGH-A657 Samsung Galaxy S6 (GSM) Samsung Galaxy J2 / J2 Pure / J2 Dash Palm Treo 680 Sanyo SCP-3810 / Mirro
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.1" diag.
16 : 9
5" diag.
16 : 9
? 2.4" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 1,420 mAh 2,550 mAh 2,600 mAh ? 1,000 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 1.4 GHz Samsung Exynos 7570 ? ?
RAM ? 3 GB 2 GB ? ?
Storage ? raw hardware 32 GB * 16 GB ? raw hardware ? raw hardware
Main Camera - 16 megapixel 8 megapixel Yes 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 4K UHD 1080p HD CIF (352 x 288) -
Front Camera - 5 megapixel 5 megapixel - -
Weight 4.34 oz
(123g)
4.87 oz
(138g)
5.43 oz
(154g)
5.5 oz
(156g)
3.97 oz
(112g)
Dimensions 4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
4.4" x 2.3" x 0.8"
(112 x 58 x 20.3 mm)
3.82" x 2.01" x 0.71"
(97 x 51 x 18.1 mm)
Form Factor Slab Slab Slab Slab Clamshell
Platform / OS (proprietary) Android Android Palm OS (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology HSDPA 3.6 LTE (Cat 6) LTE (Cat 4) EDGE 1xRTT
Features 
Fingerprint Reader - Yes - - -
Flashlight Yes Yes Yes - -
GPS / Location Yes n/a n/a n/a Yes
Ruggedized Yes - - - -
VR-ready - Yes - - -
Accessibility
Adjustable Text Size - n/a n/a n/a Yes
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - Yes - Yes -
MirrorLink - Yes - - -
NFC - Yes - - -
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID Yes n/a n/a n/a Yes
Ringer ID Yes n/a n/a n/a Yes
Voice Dialing - n/a n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a n/a Yes
Custom Ringtones Yes n/a n/a n/a Yes
Real-Music Ringers Yes n/a n/a n/a Yes
Data & Network
Data Tethering Yes n/a n/a n/a Yes
External Antenna Jack - n/a n/a n/a -
WAP / Web Browser Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a 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 Yes n/a n/a n/a Yes
Instant Messaging Yes n/a n/a n/a Yes
MMS Yes n/a n/a n/a -
Text Messaging Templates Yes n/a n/a n/a Yes
Music
Headphone Jack (3.5mm) - Yes Yes - -
Music Player Yes n/a n/a n/a -
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
TV Output - Yes - - -
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List Yes n/a n/a n/a Yes
Voice Memo Yes n/a n/a n/a Yes
Software
Games Yes n/a n/a n/a Yes
Java (J2ME) Yes n/a n/a n/a Yes
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) - n/a n/a n/a Yes
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-A657 Samsung Galaxy S6 (GSM) Samsung Galaxy J2 / J2 Pure / J2 Dash Palm Treo 680 Sanyo SCP-3810 / Mirro
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-A657 Samsung Galaxy S6 (GSM) Samsung Galaxy J2 / J2 Pure / J2 Dash Palm Treo 680 Sanyo SCP-3810 / Mirro

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