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Phone Sony Xperia XZ2 Cricket Debut S2 / AT&T Calypso 4 Samsung SCH-A310 Sonim XP3plus Samsung SPH-A660 / VI660
Current U.S. Carriers (none) AT&T (none) AT&T
T-Mobile
Verizon
(none)
Global Availability Not yet released Released Released Released Released
Specifications 
Display Size 5.7" diag.
18 : 9
6.1" diag.
19.5 : 9
? 2.8" diag.
4 : 3
?
Display Resolution & Type 1080 x 2160 pixels
(~424 ppi)
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (Grayscale)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (Color)
Display Refresh 60 Hz 60 Hz ? 60 Hz ?
Battery 3,180 mAh 3,000 mAh ? 2,300 mAh ?
Processor Qualcomm Snapdragon 845 2 GHz MediaTek Helio A22 (MT6761WB) ? 2 GHz Qualcomm Snapdragon 662 (SM6115) ?
RAM 4 GB 3 GB ? 2 GB ?
Storage 64 GB 64 GB ? raw hardware 16 GB ? raw hardware
Main Camera 19 megapixel 8 megapixel - 8 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 4K UHD ? - 1080p HD -
Front Camera 5 megapixel 5 megapixel - - -
Weight 6.98 oz
(198g)
5.64 oz
(160g)
3.2 oz
(91g)
7.76 oz
(220g)
3.54 oz
(100g)
Dimensions 6.02" x 2.83" x 0.44"
(153 x 72 x 11.1 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
3.43" x 1.89" x 0.87"
(87 x 48 x 22.1 mm)
4.57" x 2.36" x 1.1"
(116 x 60 x 28 mm)
3.3" x 1.8" x 0.87"
(84 x 46 x 22.1 mm)
Form Factor Slab Slab Clamshell Clamshell Clamshell
Platform / OS Android Android (proprietary) (proprietary) (proprietary)
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 29, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 850, 1900

AMPS: 850

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: 850, 1900

AMPS: 850

Data Technology LTE (Cat 18) LTE (Cat 4) 1xRTT LTE (Cat 13) 1xRTT
Features 
Barometer - - - Yes -
Fingerprint Reader Yes
stand-alone
- - - -
Flashlight Yes Yes - Yes -
GPS / Location n/a n/a Yes Yes Yes
Ruggedized - - - Yes -
Water-Resistant Yes
IPX5 (direct spray)
- - Yes
IPX8 (SCUBA)
-
Accessibility
Adjustable Text Size n/a n/a - Yes -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
- Yes
M4, T4 (very tele-coil compatible)
-
Multiple Languages n/a n/a Yes Yes Yes
TTY/TDD (Digital) - - - Yes Yes
Alerts
Extra Display - - Yes Yes -
Connectivity
Bluetooth Yes Yes - Yes -
Mobile Hotspot n/a n/a - Yes -
NFC Yes - - - -
USB Yes
USB Type C
Yes
USB Type C
Yes Yes
USB Type C
-
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a n/a - Yes Yes
Ringer ID n/a n/a - Yes Yes
Voice Dialing n/a n/a Yes Yes Yes
Customization
Changeable Body Plates - - Yes - -
Custom Graphics n/a n/a - Yes Yes
Custom Ringtones n/a n/a - - Yes
Data & Network
Data Tethering n/a n/a Yes Yes Yes
Dual-SIM Yes - - - -
WAP / Web Browser n/a n/a Yes Yes Yes
Input
Predictive Text Entry n/a n/a Yes Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes
Capacitive
Yes
Capacitive
- - -
Memory
Memory Card Slot Yes Yes - Yes -
Messaging
MMS n/a n/a - Yes -
Text Messaging Templates n/a n/a - Yes -
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - Yes - Yes -
Music Player n/a n/a - Yes -
Stereo Speakers Yes - - - -
Photo & Video
DLNA Yes - - - -
Miracast Yes - - - -
Power
Fast Charging Yes Yes - - -
Wireless Charging Yes - - - -
Productivity
Alarm n/a n/a - Yes Yes
Calculator n/a n/a - Yes Yes
Calendar n/a n/a Yes Yes Yes
To-Do List n/a n/a - - Yes
Voice Memo n/a n/a Yes Yes Yes
Software
Games n/a n/a Yes - Yes
Java (J2ME) n/a n/a - - Yes
Voice
HD Voice Yes Yes - Yes -
Headset Jack (2.5 mm) n/a n/a Yes - Yes
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes - Yes -
  Sony Xperia XZ2 Cricket Debut S2 / AT&T Calypso 4 Samsung SCH-A310 Sonim XP3plus Samsung SPH-A660 / VI660
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Xperia XZ2 Cricket Debut S2 / AT&T Calypso 4 Samsung SCH-A310 Sonim XP3plus Samsung SPH-A660 / VI660

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