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Phone Kyocera 2135 BLU S1 Kyocera 2235 Ericsson T28 World Ericsson R278d
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? 5.2" diag.
16 : 9
? ? ?
Display Resolution & Type ? 720 x 1280 pixels
(~282 ppi)
LCD (TFT/TFD)
? ? 101 x 40 pixels
Display Refresh ? 60 Hz ? ? ?
Battery 925 mAh 2,800 mAh ? 500 mAh ?
Processor ? 1.5 GHz MediaTek 6750 ? ? ?
RAM ? 2 GB ? ? ?
Storage ? raw hardware 16 GB ? raw hardware ? raw hardware ? raw hardware
Main Camera - 13 megapixel - - -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 1080p HD - - -
Front Camera - 5 megapixel - - -
Weight 4.7 oz
(133g)
4.83 oz
(137g)
4.34 oz
(123g)
3.14 oz
(89g)
9.28 oz
(263g)
Dimensions 5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
5.8" x 2.87" x 0.33"
(147 x 73 x 8.4 mm)
4.72" x 1.89" x 0.95"
(120 x 48 x 24.1 mm)
3.9" x 2" x 0.6"
(99 x 51 x 15.2 mm)
5.1" x 2" x 1"
(130 x 51 x 25.4 mm)
Form Factor Slab Slab Slab Flip Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

4G LTE: 2, 3, 4, 5, 7, 12, 17, 25, 26, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1900

TDMA: 850, 1900

AMPS: 850

Data Technology - LTE (Cat 6) 1xRTT - -
Features 
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight - Yes - - -
Accessibility
Multiple Languages Yes n/a Yes - Yes
TTY/TDD (Digital) - Yes - - -
Alerts
Ringer Profiles - - - Yes Yes
Connectivity
Bluetooth - Yes
Classic Audio
- - -
USB - Yes
Micro-USB
- - -
Wi-Fi - Yes
4 (802.11 b,g,n)
- - -
Contacts
Voice Dialing - n/a Yes Yes -
Customization
Changeable Body Plates Yes - - - -
Custom Ringtones Yes n/a Yes Yes Yes
Data & Network
Data Tethering Yes n/a Yes Yes Yes
WAP / Web Browser Yes n/a Yes - Yes
Input
Predictive Text Entry Yes n/a Yes - Yes
Side Keys - Yes - Yes Yes
Touch Screen - Yes - - -
Memory
Memory Card Slot - Yes - - -
Messaging
Text Messaging Templates Yes n/a Yes - -
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes - - -
Productivity
Alarm Yes n/a Yes Yes Yes
Calculator Yes n/a Yes Yes -
Voice Memo - n/a Yes - -
Software
Games Yes n/a Yes Yes -
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) Yes n/a Yes - -
Speaker Phone - Yes - - -
  Kyocera 2135 BLU S1 Kyocera 2235 Ericsson T28 World Ericsson R278d
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Kyocera 2135 BLU S1 Kyocera 2235 Ericsson T28 World Ericsson R278d

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