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Specifications
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Phone	Palm Pre (CDMA)	Samsung SCH-A990	TCL A30 / A3	ZTE Blade Vantage	Samsung SCH-A870 / Siren
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	3.1" diag. 5 : 3	?	5.5" diag. 18 : 9	5" diag. 16 : 9	?
Display Resolution & Type	320 x 480 pixels (~186 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	?
Battery	1,150 mAh	1,000 mAh	3,000 mAh	2,500 mAh	1,000 mAh
Processor	TI OMAP 3430	?	2 GHz MediaTek Helio P22 (MT6762V)	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	?
RAM	?	?	3 GB	2 GB	?
Storage	? raw hardware	? raw hardware	32 GB	16 GB	? raw hardware
Main Camera	3 megapixel	3 megapixel	8 megapixel	8 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	?	1080p HD	720p HD	-
Front Camera	-	-	5 megapixel	2 megapixel	-
Weight	4.76 oz (135g)	4.4 oz (125g)	6.03 oz (171g)	5.29 oz (150g)	3.4 oz (96g)
Dimensions	3.9" x 2.3" x 0.67" (99 x 58 x 17 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	5.74" x 2.8" x 0.39" (146 x 71 x 9.9 mm)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)	3.6" x 1.8" x 0.85" (91 x 46 x 21.6 mm)
Form Factor	Slide	Clamshell	Slab	Slab	Clamshell
Platform / OS	webOS	(proprietary)	Android	Android	(proprietary)
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 13	CDMA: 850, 1900 AMPS: 850
Data Technology	EVDO rA	EVDO r0	LTE (Cat 4)	LTE (Cat 4)	1xRTT
Features
Flashlight	-	Yes	Yes	Yes	-
GPS / Location	n/a	Yes	n/a	n/a	Yes
Water-Resistant	-	-	Yes IPX2 (drip)	-	-
Accessibility
Hearing Aid Compatible	Yes	Yes	Yes	Yes	Yes
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB	-
Wi-Fi	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	n/a	Yes	n/a	n/a	Yes
Ringer ID	n/a	Yes	n/a	n/a	-
Voice Dialing	n/a	Yes	n/a	n/a	Yes
Customization
Custom Graphics	n/a	Yes	n/a	n/a	Yes
Custom Ringtones	n/a	Yes	n/a	n/a	Yes
Real-Music Ringers	n/a	Yes	n/a	n/a	-
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	-
WAP / Web Browser	n/a	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes	-	Yes	Yes	-
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
Email Client	n/a	-	n/a	n/a	-
EMS / Picture Messaging	n/a	Yes	n/a	n/a	Yes
Instant Messaging	n/a	-	n/a	n/a	-
MMS	n/a	Yes	n/a	n/a	Yes
Text Messaging Templates	n/a	Yes	n/a	n/a	-
Music
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	-
Music Player	n/a	Yes	n/a	n/a	-
Stereo Speakers	-	Yes	-	-	-
Photo & Video
TV Output	-	Yes	-	-	-
Productivity
Alarm	n/a	Yes	n/a	n/a	Yes
Calculator	n/a	Yes	n/a	n/a	Yes
Calendar	n/a	Yes	n/a	n/a	Yes
To-Do List	n/a	-	n/a	n/a	-
Voice Memo	n/a	Yes	n/a	n/a	-
Software
BREW	n/a	Yes	n/a	n/a	Yes
Games	n/a	Yes	n/a	n/a	Yes
Voice
HD Voice	-	-	Yes	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Palm Pre (CDMA)	Samsung SCH-A990	TCL A30 / A3	ZTE Blade Vantage	Samsung SCH-A870 / Siren
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Pre (CDMA)	Samsung SCH-A990	TCL A30 / A3	ZTE Blade Vantage	Samsung SCH-A870 / Siren