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Specifications
	X >	< X >	< X >	< X >	< X

Phone	AT&T Vista	Coolpad Quattro 4G	Motorola V551 / V330 / V547 / V555 / V557	HTC Droid Eris	Palm Treo 600 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	5.5" diag. 18 : 9	4" diag. 5 : 3	?	3.2" diag. 5 : 3	?
Display Resolution & Type	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	160 x 160 pixels LCD (Color)
Display Refresh	60 Hz	60 Hz	?	60 Hz	?
Battery	2,450 mAh	1,600 mAh	820 mAh	1,300 mAh	?
Processor	2 GHz MediaTek Helio A22 (MT6761V)	?	?	528 MHz MSM7600	?
RAM	3 GB	?	?	?	?
Storage	32 GB	512 MB	? raw hardware	? raw hardware	? raw hardware
Main Camera	8 megapixel	3 megapixel	Yes	5 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	VGA (640 x 480)	?	CIF (352 x 288)	-
Front Camera	5 megapixel	Yes	-	-	-
Weight	5.51 oz (156g)	3.31 oz (94g)	4.23 oz (120g)	4.43 oz (126g)	6.2 oz (176g)
Dimensions	5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm)	4.96" x 2.6" x 0.51" (126 x 66 x 13 mm)	3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slab
Platform / OS	Android	Android	(proprietary)	Android	Palm OS
Network Bands	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8	4G LTE: 2, 4 CDMA: 850, 1700, 1900	GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 4)	LTE (Cat 3)	EDGE	EVDO rA	1xRTT
Features
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	n/a	-	n/a	n/a
Accessibility
Hearing Aid Compatible	Yes	Yes	-	Yes	-
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 Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	-
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	n/a	n/a	-	n/a	n/a
USB	Yes USB Type C	Yes	Yes	Yes Mini-USB	Yes
Wi-Fi	Yes	Yes	-	Yes 802.11 b,g	-
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	-	Yes	Yes
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	-
Music Player	n/a	n/a	-	n/a	n/a
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	-	-	-	-
Headset Jack (2.5 mm)	n/a	n/a	Yes	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	AT&T Vista	Coolpad Quattro 4G	Motorola V551 / V330 / V547 / V555 / V557	HTC Droid Eris	Palm Treo 600 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	AT&T Vista	Coolpad Quattro 4G	Motorola V551 / V330 / V547 / V555 / V557	HTC Droid Eris	Palm Treo 600 (CDMA)