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Phone Samsung Jack i637 Motorola Moto X4 Sony Xperia XZ1 Ericsson T66 Ericsson T39
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
5.2" diag.
16 : 9
5.2" diag.
16 : 9
? ?
Display Resolution & Type 320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
? ?
LCD (Grayscale)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 1,480 mAh 3,000 mAh 2,700 mAh ? ?
Processor ? 2.2 GHz Qualcomm Snapdragon 630 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) ? ?
RAM ? 3 GB 4 GB ? ?
Storage ? raw hardware 32 GB 64 GB ? raw hardware ? raw hardware
Main Camera 3 megapixel 12 megapixel 19 megapixel - -
Wide Camera - 8 megapixel - - -
Tele Camera - - - - -
Video Capture ? 4K UHD 4K UHD - -
Front Camera - 16 megapixel 13 megapixel - -
Weight 3.6 oz
(102g)
5.75 oz
(163g)
5.5 oz
(156g)
2.08 oz
(59g)
3.03 oz
(86g)
Dimensions 4.4" x 2.4" x 0.5"
(112 x 61 x 12.7 mm)
5.84" x 2.89" x 0.31"
(148 x 73 x 8 mm)
5.82" x 2.89" x 0.29"
(148 x 73 x 7.4 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.78" x 1.97" x 0.71"
(96 x 50 x 18 mm)
Form Factor Slab Slab Slab Slab Flip
Platform / OS Windows Mobile Standard Android Android (proprietary) (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology HSDPA 3.6 LTE (Cat 11) LTE (Cat 16) - GPRS
Features 
Barometer - - Yes - -
Fingerprint Reader - Yes
stand-alone
Yes *
stand-alone
- -
Flashlight - Yes Yes - -
GPS / Location n/a n/a n/a - -
Water-Resistant - Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible Yes Yes Yes - -
Multiple Languages n/a n/a n/a Yes Yes
TTY/TDD (Digital) - Yes Yes - -
Alerts
Ringer Profiles Yes - - Yes Yes
Connectivity
Bluetooth Yes Yes Yes - Yes
Infrared (IR) - - - - Yes
NFC - Yes Yes - -
USB Yes Yes
USB Type C
Yes
USB Type C
- -
Wi-Fi Yes
802.11 b,g
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 n/a - -
Ringer ID n/a n/a n/a - -
Voice Dialing n/a n/a n/a - Yes
Customization
Custom Graphics n/a n/a n/a Yes Yes
Custom Ringtones n/a n/a n/a Yes Yes
Real-Music Ringers n/a n/a n/a - -
Data & Network
Data Tethering n/a n/a n/a - Yes
Dual-SIM - - Yes * - -
WAP / Web Browser n/a n/a n/a Yes Yes
Input
Predictive Text Entry n/a n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen - Yes Yes - -
Memory
Memory Card Slot Yes Yes Yes - -
Messaging
Email Client n/a n/a n/a - -
EMS / Picture Messaging n/a n/a n/a Yes -
Instant Messaging n/a n/a n/a - -
MMS n/a n/a n/a - -
Text Messaging Templates n/a n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes - -
Music Player n/a n/a n/a - -
Stereo Speakers - - Yes - -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
Power
Fast Charging - Yes Yes - -
Productivity
Alarm n/a n/a n/a Yes Yes
Calculator n/a n/a n/a Yes Yes
Calendar n/a n/a n/a Yes Yes
To-Do List n/a n/a n/a Yes -
Voice Memo n/a n/a n/a - Yes
Software
Games n/a n/a n/a Yes Yes
Java (J2ME) n/a n/a n/a - -
Voice
HD Voice - Yes Yes - -
Speaker Phone Yes Yes Yes - -
  * Some versions only
  Samsung Jack i637 Motorola Moto X4 Sony Xperia XZ1 Ericsson T66 Ericsson T39
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Jack i637 Motorola Moto X4 Sony Xperia XZ1 Ericsson T66 Ericsson T39

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