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Phone Asus PadFone X mini Nokia 6255i / 6256i Samsung SGH-A657 Visible Midnight
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
? ? 6.5" diag.
20 : 9
Display Resolution & Type 480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
720 x 1600 pixels
(~269 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? 60 Hz
Battery 2,060 mAh 1,070 mAh 1,420 mAh 4,000 mAh
Processor 1.6 GHz Intel Atom Z2560 ? ? MediaTek Helio P22 (MT6762)
RAM 1 GB ? ? 3 GB
Storage 8 GB ? raw hardware ? raw hardware 32 GB
Main Camera 5 megapixel Yes - 13 megapixel
Wide Camera - - - 5 megapixel
Tele Camera - - - -
Video Capture 1080p HD ? - 1080p HD
Front Camera 2 megapixel - - 8 megapixel
Weight 5.26 oz
(149g)
4.23 oz
(120g)
4.34 oz
(123g)
6.35 oz
(180g)
Dimensions 5.2" x 2.61" x 0.5"
(132 x 66 x 12.6 mm)
3.36" x 1.87" x 0.97"
(85 x 47 x 24.6 mm)
4.53" x 2.05" x 0.77"
(115 x 52 x 19.6 mm)
6.53" x 3" x 0.34"
(166 x 76 x 8.6 mm)
Form Factor Slab Clamshell Slab Slab
Platform / OS Android (proprietary) (proprietary) Android
Network Bands

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 7, 12, 13, 66

Data Technology LTE (Cat 3) 1xRTT HSDPA 3.6 LTE (Cat 4)
Features 
Fingerprint Reader - - - Yes
stand-alone
Flashlight Yes - Yes Yes
GPS / Location n/a Yes Yes n/a
Ruggedized - - Yes -
Accessibility
Adjustable Text Size n/a - - n/a
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M4 (very compatible)
- Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages n/a Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display - Yes - -
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) - Yes - -
Mobile Hotspot n/a - - n/a
USB Yes
Micro-USB
Yes Yes Yes
USB Type C
Wi-Fi Yes
4 (802.11 b,g,n)
- - Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID n/a Yes Yes n/a
Ringer ID n/a Yes Yes n/a
Voice Dialing n/a Yes - n/a
Customization
Custom Graphics n/a Yes Yes n/a
Custom Ringtones n/a Yes Yes n/a
Real-Music Ringers n/a Yes Yes n/a
Data & Network
Data Tethering n/a Yes Yes n/a
WAP / Web Browser n/a Yes Yes n/a
Input
Predictive Text Entry n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen Yes
Capacitive
- - Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client n/a Yes Yes n/a
EMS / Picture Messaging n/a Yes * - n/a
Instant Messaging n/a - Yes n/a
MMS n/a Yes Yes n/a
Text Messaging Templates n/a Yes Yes n/a
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) Yes - - Yes
Music Player n/a Yes * Yes n/a
Power
Wireless Charging - - - Yes
Productivity
Alarm n/a Yes Yes n/a
Calculator n/a Yes Yes n/a
Calendar n/a Yes Yes n/a
To-Do List n/a Yes Yes n/a
Voice Memo n/a Yes Yes n/a
Software
BREW n/a Yes * - n/a
Games n/a Yes Yes n/a
Java (J2ME) n/a Yes * Yes n/a
Voice
HD Voice - - - Yes
Headset Jack (2.5 mm) n/a Yes - n/a
Push-To-Talk - - Yes -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Asus PadFone X mini Nokia 6255i / 6256i Samsung SGH-A657 Visible Midnight
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Asus PadFone X mini Nokia 6255i / 6256i Samsung SGH-A657 Visible Midnight

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