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Phone Samsung SPH-A250 Samsung SPH-I300 Kyocera DuraForce XD Kyocera 2135 Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size ? ? 5.7" diag.
16 : 9
? 4" diag.
5 : 3
Display Resolution & Type ? 160 x 240 pixels
LCD (Color)
720 x 1280 pixels
(~258 ppi)
LCD (TFT/TFD)
? 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery ? ? 3,700 mAh 925 mAh 1,430 mAh
Processor ? ? 1.6 GHz Qualcomm Snapdragon 400 (MSM8928) ? 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM ? ? 2 GB ? 512 MB
Storage ? raw hardware ? raw hardware 16 GB ? raw hardware 8 GB
Main Camera - - 8 megapixel - 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - - 1080p HD - 720p HD
Front Camera - - 2 megapixel - -
Weight 2.82 oz
(80g)
6 oz
(170g)
10.83 oz
(307g)
4.7 oz
(133g)
4.39 oz
(124g)
Dimensions 2.76" x 1.91" x 0.83"
(70 x 49 x 21.1 mm)
4.9" x 2.28" x 0.82"
(124 x 58 x 20.8 mm)
6.57" x 3.4" x 0.55"
(167 x 86 x 14 mm)
5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Palm OS Android (proprietary) Windows
Network Bands

CDMA: 1900

CDMA: 1900

AMPS: 850

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

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology - - LTE (Cat 3) - HSPA+ 21
Features 
Flashlight - - Yes - -
GPS / Location - n/a n/a - n/a
Ruggedized - - Yes - -
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size - n/a n/a - n/a
Hearing Aid Compatible - - Yes - Yes
Multiple Languages - n/a n/a Yes n/a
TTY/TDD (Digital) - - Yes - Yes
Alerts
Extra Display - Yes - - -
Connectivity
Bluetooth - - Yes
Classic Audio
- Yes
Infrared (IR) - Yes - - -
Mobile Hotspot - n/a n/a - n/a
NFC - - Yes - -
USB - - Yes
Micro-USB
- Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
- Yes
Contacts
Picture ID - n/a n/a - n/a
Ringer ID - n/a n/a - n/a
Voice Dialing Yes n/a n/a - n/a
Customization
Changeable Body Plates - - - Yes -
Custom Graphics - n/a n/a - n/a
Custom Ringtones - n/a n/a Yes n/a
Real-Music Ringers - n/a n/a - n/a
Data & Network
Data Tethering Yes n/a n/a Yes n/a
WAP / Web Browser Yes n/a n/a Yes n/a
Input
Predictive Text Entry Yes n/a n/a Yes n/a
Side Keys Yes Yes Yes - Yes
Touch Screen - Yes Yes - Yes
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - n/a n/a - n/a
Instant Messaging - n/a n/a - n/a
MMS - n/a n/a - n/a
Text Messaging Templates - n/a n/a Yes n/a
Music
Headphone Jack (3.5mm) - - Yes - Yes
Music Player - n/a n/a - n/a
Photo & Video
Miracast - - Yes - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes n/a n/a Yes n/a
Calculator Yes n/a n/a Yes n/a
Calendar Yes n/a n/a - n/a
To-Do List Yes n/a n/a - n/a
Voice Memo - n/a n/a - n/a
Software
Games - n/a n/a Yes n/a
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a Yes n/a
Push-To-Talk - - Yes - -
Speaker Phone - Yes Yes - Yes
  Samsung SPH-A250 Samsung SPH-I300 Kyocera DuraForce XD Kyocera 2135 Nokia Lumia 521 / 520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SPH-A250 Samsung SPH-I300 Kyocera DuraForce XD Kyocera 2135 Nokia Lumia 521 / 520

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