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Phone	Palm Treo 600 (CDMA)	AT&T Maestro 3	Motorola V551 / V330 / V547 / V555 / V557	ZTE Blade Vantage	Samsung Galaxy J2 / J2 Pure / J2 Dash
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	6.5" diag. 20 : 9	?	5" diag. 16 : 9	5" diag. 16 : 9
Display Resolution & Type	160 x 160 pixels LCD (Color)	720 x 1600 pixels (~270 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	540 x 960 pixels (~220 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz	60 Hz
Battery	?	3,900 mAh	820 mAh	2,500 mAh	2,600 mAh
Processor	?	2 GHz MediaTek Helio A22 (MT6761)	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	1.4 GHz Samsung Exynos 7570
RAM	?	3 GB	?	2 GB	2 GB
Storage	? raw hardware	32 GB	? raw hardware	16 GB	16 GB
Main Camera	Yes	13 megapixel	Yes	8 megapixel	8 megapixel
Wide Camera	-	5 megapixel	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	1080p HD	?	720p HD	1080p HD
Front Camera	-	5 megapixel	-	2 megapixel	5 megapixel
Weight	6.2 oz (176g)	6.24 oz (177g)	4.23 oz (120g)	5.29 oz (150g)	5.43 oz (154g)
Dimensions	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)	5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slab
Platform / OS	Palm OS	Android	(proprietary)	Android	Android
Network Bands	CDMA: 850, 1900	4G LTE: 2, 4, 5, 12, 14, 30	GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4, 5, 13	4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	1xRTT	LTE (Cat 4)	EDGE	LTE (Cat 4)	LTE (Cat 4)
Features
Barometer	-	Yes	-	-	-
Fingerprint Reader	-	Yes stand-alone	-	-	-
Flashlight	-	Yes	-	Yes	Yes
GPS / Location	n/a	n/a	-	n/a	n/a
Accessibility
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
USB	Yes	Yes USB Type C	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	Yes 5 (802.11 a,ac,b,g,n)	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	n/a	Yes	n/a	n/a
Ringer ID	n/a	n/a	Yes	n/a	n/a
Voice Dialing	n/a	n/a	Yes	n/a	n/a
Customization
Custom Graphics	n/a	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	n/a	Yes	n/a	n/a
WAP / Web Browser	n/a	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes	Yes Capacitive	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	-	Yes	Yes
Messaging
Email Client	n/a	n/a	Yes	n/a	n/a
EMS / Picture Messaging	n/a	n/a	Yes	n/a	n/a
Instant Messaging	n/a	n/a	Yes	n/a	n/a
MMS	n/a	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	n/a	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	-	Yes	-	Yes	Yes
Productivity
Alarm	n/a	n/a	Yes	n/a	n/a
Calculator	n/a	n/a	Yes	n/a	n/a
Calendar	n/a	n/a	Yes	n/a	n/a
To-Do List	n/a	n/a	-	n/a	n/a
Voice Memo	n/a	n/a	Yes	n/a	n/a
Software
Games	n/a	n/a	Yes	n/a	n/a
Java (J2ME)	n/a	n/a	Yes	n/a	n/a
Voice
HD Voice	-	Yes	-	Yes	-
Headset Jack (2.5 mm)	n/a	n/a	Yes	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Palm Treo 600 (CDMA)	AT&T Maestro 3	Motorola V551 / V330 / V547 / V555 / V557	ZTE Blade Vantage	Samsung Galaxy J2 / J2 Pure / J2 Dash
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 600 (CDMA)	AT&T Maestro 3	Motorola V551 / V330 / V547 / V555 / V557	ZTE Blade Vantage	Samsung Galaxy J2 / J2 Pure / J2 Dash