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ZTE Prelude / Avail 2 Samsung SGH-X640 Huawei W1

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Specifications
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Phone	Sony Ericsson Z550a	ZTE Blade A7 Prime	ZTE Speed	ZTE Blade Vantage
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	1.9" diag. 4 : 3	6.1" diag. 19.5 : 9	4.5" diag. 16 : 9	5" diag. 16 : 9
Display Resolution & Type	176 x 220 pixels (~148 ppi) LCD (TFT/TFD)	720 x 1560 pixels (~282 ppi) LCD (TFT/TFD)	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	60 Hz
Battery	?	3,200 mAh	2,000 mAh	2,500 mAh
Processor	?	2 GHz MediaTek Helio A22 (MT6761)	1.2 GHz Qualcomm Snapdragon 410 MSM8916	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM	?	3 GB	1 GB	2 GB
Storage	? raw hardware	32 GB	8 GB	16 GB
Main Camera	1 megapixel	16 megapixel	5 megapixel	8 megapixel
Wide Camera	-	-	-	-
Tele Camera	-	-	-	-
Video Capture	?	1080p HD	720p HD	720p HD
Front Camera	-	5 megapixel	2 megapixel	2 megapixel
Weight	3.26 oz (92g)	5.82 oz (165g)	4.8 oz (136g)	5.29 oz (150g)
Dimensions	3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm)	6.17" x 2.87" x 0.32" (157 x 73 x 8.1 mm)	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm)
Form Factor	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	Android	Android	Android
Network Bands	GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4, 5, 13	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	4G LTE: 2, 4, 5, 13
Data Technology	GPRS	LTE (Cat 4)	LTE (Cat 3)	LTE (Cat 4)
Features
Fingerprint Reader	-	Yes	-	-
Flashlight	-	Yes	-	Yes
GPS / Location	-	n/a	n/a	n/a
Water-Resistant	-	Yes IPX2 (drip)	-	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a
Hearing Aid Compatible	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes
Alerts
Extra Display	Yes	-	-	-
Ringer Profiles	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes
Mobile Hotspot	-	n/a	n/a	n/a
USB	Yes	Yes USB Type C	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	Yes	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a
Custom Ringtones	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	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes
Touch Screen	-	Yes Capacitive	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	Yes	Yes	Yes
Messaging
Email Client	Yes	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a
MMS	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a
Music
FM Radio	Yes	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes
Music Player	Yes	n/a	n/a	n/a
Productivity
Alarm	Yes	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a
To-Do List	Yes	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a
Voice
HD Voice	-	Yes	Yes	Yes
Push-To-Talk	Yes *	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes
	* Some versions only
	Sony Ericsson Z550a	ZTE Blade A7 Prime	ZTE Speed	ZTE Blade Vantage
	X >	< X >	< X >	< X

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


Phone	Sony Ericsson Z550a	ZTE Blade A7 Prime	ZTE Speed	ZTE Blade Vantage