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Phone Kyocera 2135 LG VX-4400 Samsung Galaxy S II / SGH-i777 Microsoft Surface Duo 2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 4.3" diag.
5 : 3
8.3" diag.
4 : 3
Display Resolution & Type ? 120 x 133 pixels
LCD (STN)
480 x 800 pixels
(~217 ppi)
AMOLED
2688 x 1892 pixels
(~396 ppi)
AMOLED
Display Refresh ? ? 60 Hz 90 Hz
Battery 925 mAh 950 mAh 1,650 mAh 4,449 mAh
Processor ? ? 1.2 GHz Samsung Exynos dual-core Qualcomm Snapdragon 888
RAM ? ? ? 8 GB
Storage ? raw hardware ? raw hardware 16 GB 128 GB *
Main Camera - - 8 megapixel 12 megapixel
Wide Camera - - - 16 megapixel
Tele Camera - - - 12 megapixel
Video Capture - - 1080p HD 4K UHD
Front Camera - - 2 megapixel 12 megapixel
Weight 4.7 oz
(133g)
4 oz
(113g)
4.3 oz
(122g)
10.02 oz
(284g)
Dimensions 5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
3.46" x 1.89" x 1.07"
(88 x 48 x 27.2 mm)
4.96" x 2.6" x 0.35"
(126 x 66 x 8.9 mm)
5.72" x 3.63" x 0.43"
(145 x 92 x 11 mm)
Form Factor Slab Clamshell Slab Unique
Platform / OS (proprietary) (proprietary) Android Android
Network Bands

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

AMPS: 850

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

5G: 1, 2, 3, 5, 7, 20, 25, 28, 38, 41, 66, 71, 77-C, 78, 257, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology - 1xRTT HSPA+ 21 NR (5G)
Features 
Fingerprint Reader - - - Yes
stand-alone
Flashlight - - - Yes
GPS / Location - Yes n/a n/a
Accessibility
Hearing Aid Compatible - - Yes Yes
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - Yes Yes -
Alerts
Extra Display - Yes - -
Connectivity
Bluetooth - - Yes
Classic Audio
Yes
Mobile Hotspot - - n/a n/a
NFC - - Yes Yes
USB - Yes Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes
4 (802.11 a,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID - - n/a n/a
Ringer ID - Yes n/a n/a
Voice Dialing - Yes n/a n/a
Customization
Changeable Body Plates Yes - - -
Custom Graphics - Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers - - n/a n/a
Data & Network
Data Tethering Yes Yes n/a n/a
Dual-SIM - - - Yes
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys - Yes Yes Yes
Touch Screen - - Yes Yes
Memory
Memory Card Slot - - Yes -
Messaging
Email Client - Yes n/a n/a
Instant Messaging - - n/a n/a
MMS - - n/a n/a
Text Messaging Templates Yes - n/a n/a
Music
Headphone Jack (3.5mm) - - Yes -
Music Player - - n/a n/a
Stereo Speakers - - - Yes
Photo & Video
DLNA - - Yes -
Miracast - - - Yes
TV Output - - Yes Yes
Power
Fast Charging - - - Yes
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar - Yes n/a n/a
Voice Memo - Yes n/a n/a
Software
BREW - Yes n/a n/a
Games Yes Yes n/a n/a
Voice
HD Voice - - - Yes
Headset Jack (2.5 mm) Yes Yes n/a n/a
Speaker Phone - - Yes Yes
  Kyocera 2135 LG VX-4400 Samsung Galaxy S II / SGH-i777 Microsoft Surface Duo 2
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Phone Kyocera 2135 LG VX-4400 Samsung Galaxy S II / SGH-i777 Microsoft Surface Duo 2

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