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Phone LG Tritan AX-840 / UX-840 Samsung SGH-E715 Samsung Transform Cricket Debut S2 / AT&T Calypso 4 ZTE Axon 9 Pro
Current U.S. Carriers (none) (none) (none) AT&T (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 3" diag.
5 : 3
? 3.5" diag.
5 : 3
6.1" diag.
19.5 : 9
6.2" diag.
18.5 : 9
Display Resolution & Type 240 x 400 pixels
(~155 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
1080 x 2248 pixels
(~402 ppi)
AMOLED
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 950 mAh 900 mAh 1,500 mAh 3,000 mAh 4,000 mAh
Processor ? ? 800 MHz Samsung S3C6410, Qualcomm QSC6085 2 GHz MediaTek Helio A22 (MT6761WB) 2.7 GHz Qualcomm Snapdragon 845
RAM ? ? ? 3 GB 6 GB
Storage ? raw hardware ? raw hardware ? raw hardware 64 GB 128 GB
Main Camera 3 megapixel Yes 3 megapixel 8 megapixel 12 megapixel
Wide Camera - - - - 20 megapixel
Tele Camera - - - - -
Video Capture QVGA (320 x 240) - QVGA (320 x 240) ? 4K UHD
Front Camera - - Yes 5 megapixel 20 megapixel
Weight 5.03 oz
(143g)
3.35 oz
(95g)
5.37 oz
(152g)
5.64 oz
(160g)
2.79 oz
(79g)
Dimensions 4.45" x 2.24" x 0.65"
(113 x 57 x 16.5 mm)
3.54" x 1.77" x 0.94"
(90 x 45 x 23.9 mm)
4.61" x 2.42" x 0.61"
(117 x 61 x 15.5 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
6.16" x 2.93" x 0.31"
(156 x 75 x 7.9 mm)
Form Factor Slide Clamshell Slide Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

CDMA: 850, 1900

GSM: 900, 1900

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 GPRS EVDO rA LTE (Cat 4) LTE (Cat 15)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - - Yes Yes
GPS / Location Yes - n/a n/a n/a
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size Yes - n/a n/a n/a
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
- Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
-
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes - Yes - Yes
Alerts
Extra Display - Yes - - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Infrared (IR) - Yes - - -
NFC - - - - Yes
USB Yes
Micro-USB
- Yes
Micro-USB
Yes
USB Type C
Yes
USB Type C
Wi-Fi - - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing Yes - n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers Yes - n/a n/a n/a
Data & Network
Data Tethering - Yes n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry - Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - Yes - -
Touch Screen Yes - Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client Yes - n/a n/a n/a
EMS / Picture Messaging - Yes n/a n/a n/a
Instant Messaging Yes - n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
Headphone Jack (3.5mm) Yes - Yes Yes -
Music Player Yes - n/a n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
Miracast - - - - Yes
Power
Fast Charging - - - Yes Yes
Wireless Charging - - - - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List - Yes n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
BREW Yes - n/a n/a n/a
Games Yes Yes n/a n/a n/a
Java (J2ME) - Yes n/a n/a n/a
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) - Yes n/a n/a n/a
Speaker Phone Yes - Yes Yes Yes
  LG Tritan AX-840 / UX-840 Samsung SGH-E715 Samsung Transform Cricket Debut S2 / AT&T Calypso 4 ZTE Axon 9 Pro
  X > < X > < X > < X > < X

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

 
Phone LG Tritan AX-840 / UX-840 Samsung SGH-E715 Samsung Transform Cricket Debut S2 / AT&T Calypso 4 ZTE Axon 9 Pro

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