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Phone Samsung SCH-U620 Sonim XP3plus Kyocera Coast / Kona ZTE Flash
Current U.S. Carriers (none) AT&T
T-Mobile
Verizon
(none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 2.8" diag.
4 : 3
2.4" diag.
4 : 3
4.5" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~326 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz
Battery 1,000 mAh 2,300 mAh 870 mAh 1,780 mAh
Processor ? 2 GHz Qualcomm Snapdragon 662 (SM6115) 480 MHz Qualcomm QSC6155 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960
RAM ? 2 GB 128 MB 1 GB
Storage ? raw hardware 16 GB 256 MB 8 GB
Main Camera 1 megapixel 8 megapixel 2 megapixel 12 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture QVGA (320 x 240) 1080p HD - 1080p HD
Front Camera - - - 1 megapixel
Weight 3.74 oz
(106g)
7.76 oz
(220g)
3.7 oz
(105g)
5.2 oz
(147g)
Dimensions 3.78" x 1.85" x 0.87"
(96 x 47 x 22.1 mm)
4.57" x 2.36" x 1.1"
(116 x 60 x 28 mm)
3.94" x 2.05" x 0.68"
(100 x 52 x 17.3 mm)
5.27" x 2.56" x 0.38"
(134 x 65 x 9.7 mm)
Form Factor Slide Clamshell Clamshell Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 25, 26, 30, 39, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 800, 850, 1700, 1900

*

4G LTE: 25

CDMA: 800, 850, 1900

Data Technology EVDO r0 LTE (Cat 13) 1xRTT LTE (Cat 3)
Features 
Barometer - Yes - -
Flashlight - Yes - -
GPS / Location Yes Yes Yes n/a
Ruggedized - Yes - -
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size - Yes Yes n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes Yes Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display - Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Yes
Classic Audio
Mobile Hotspot - Yes - n/a
NFC - - - Yes
USB Yes Yes
USB Type C
Yes
Micro-USB
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 Yes Yes n/a
Ringer ID Yes Yes Yes n/a
Voice Dialing Yes Yes Yes n/a
Customization
Custom Graphics Yes Yes Yes n/a
Custom Ringtones Yes - Yes n/a
Real-Music Ringers - - Yes n/a
Data & Network
Data Tethering - Yes - n/a
WAP / Web Browser Yes Yes Yes n/a
Input
Predictive Text Entry Yes Yes Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen - - - Yes
Memory
Memory Card Slot Yes Yes - Yes
Messaging
Email Client - - - n/a
Instant Messaging Yes - - n/a
MMS Yes Yes Yes n/a
Text Messaging Templates Yes Yes Yes n/a
Music
FM Radio - Yes - -
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player Yes Yes - n/a
Stereo Speakers Yes - - -
Productivity
Alarm Yes Yes Yes n/a
Calculator Yes Yes Yes n/a
Calendar Yes Yes Yes n/a
Voice Memo Yes Yes Yes n/a
Software
BREW Yes - - n/a
Games Yes - Yes n/a
Java (J2ME) - - Yes n/a
Voice
HD Voice - Yes - Yes
Headset Jack (2.5 mm) Yes - - n/a
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes Yes
  Samsung SCH-U620 Sonim XP3plus Kyocera Coast / Kona ZTE Flash
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Phone Samsung SCH-U620 Sonim XP3plus Kyocera Coast / Kona ZTE Flash

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