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Phone	ZTE Engage LT / Engage MT	Motorola i670	Samsung SCH-A610	Samsung SCH-U620	Samsung Galaxy S6 (GSM)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4" diag. 5 : 3	?	?	?	5.1" diag. 16 : 9
Display Resolution & Type	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	130 x 130 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	1440 x 2560 pixels (~576 ppi) AMOLED
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	1,900 mAh	?	1,300 mAh	1,000 mAh	2,550 mAh
Processor	?	?	?	?	2.1 GHz Samsung Exynos 7420
RAM	1 GB	?	?	?	3 GB
Storage	4 GB	? raw hardware	? raw hardware	? raw hardware	32 GB *
Main Camera	3 megapixel	-	Yes	1 megapixel	16 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	-	-	QVGA (320 x 240)	4K UHD
Front Camera	Yes	-	-	-	5 megapixel
Weight	5.09 oz (144g)	4.06 oz (115g)	4.23 oz (120g)	3.74 oz (106g)	4.87 oz (138g)
Dimensions	4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm)	3.46" x 2" x 1.02" (88 x 51 x 25.9 mm)	3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm)	3.78" x 1.85" x 0.87" (96 x 47 x 22.1 mm)	5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm)
Form Factor	Slab	Clamshell	Clamshell	Slide	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1700, 1900	iDEN: 800	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	EVDO rA	WiDEN	1xRTT	EVDO r0	LTE (Cat 6)
Features
Fingerprint Reader	-	-	-	-	Yes
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	Yes	Yes	n/a
VR-ready	-	-	-	-	Yes
Accessibility
Adjustable Text Size	n/a	Yes	-	-	n/a
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4 (very compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	-	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes	Yes
Alerts
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	-	-	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
MirrorLink	-	-	-	-	Yes
NFC	-	-	-	-	Yes
USB	Yes Micro-USB	-	-	Yes	Yes Micro-USB
Wi-Fi	Yes	-	-	-	Yes 5 (802.11 a,ac,b,g,n)
Contacts
Picture ID	n/a	-	Yes	Yes	n/a
Ringer ID	n/a	Yes	Yes	Yes	n/a
Voice Dialing	n/a	Yes	Yes	Yes	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	-	-	-	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	-	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	-	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	-	Yes	-
Messaging
Email Client	n/a	-	-	-	n/a
EMS / Picture Messaging	n/a	-	Yes	-	n/a
Instant Messaging	n/a	-	-	Yes	n/a
MMS	n/a	Yes	Yes	Yes	n/a
Text Messaging Templates	n/a	Yes	Yes	Yes	n/a
Music
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	-	Yes	n/a
Stereo Speakers	-	-	-	Yes	-
Photo & Video
DLNA	-	-	-	-	Yes
Miracast	-	-	-	-	Yes
TV Output	-	-	-	-	Yes
Power
Fast Charging	-	-	-	-	Yes
Wireless Charging	-	-	-	-	Yes
Productivity
Alarm	n/a	-	Yes	Yes	n/a
Calculator	n/a	-	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	-	Yes	-	n/a
Voice Memo	n/a	Yes	Yes	Yes	n/a
Software
BREW	n/a	-	Yes	Yes	n/a
Games	n/a	-	Yes	Yes	n/a
Java (J2ME)	n/a	Yes	-	-	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	Yes	Yes	Yes	n/a
Push-To-Talk	-	Yes	-	-	-
Speaker Phone	Yes	Yes	-	Yes	Yes
	ZTE Engage LT / Engage MT	Motorola i670	Samsung SCH-A610	Samsung SCH-U620	Samsung Galaxy S6 (GSM)
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Engage LT / Engage MT	Motorola i670	Samsung SCH-A610	Samsung SCH-U620	Samsung Galaxy S6 (GSM)