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Phone	ZTE Z998 / Unico LTE	Motorola EM330 / EM28	AT&T Maestro 3	Huawei Express
Current U.S. Carriers	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released
Display Size	4.5" diag. 16 : 9	1.8" diag. 4 : 3	6.5" diag. 20 : 9	2.6" diag. 4 : 3
Display Resolution & Type	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	128 x 160 pixels (~114 ppi) LCD (TFT/TFD)	720 x 1600 pixels (~270 ppi) LCD (TFT/TFD)	320 x 240 pixels (~154 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	60 Hz
Battery	2,070 mAh	940 mAh	3,900 mAh	1,500 mAh
Processor	1.2 GHz Qualcomm Snapdragon 400 MSM8930	?	2 GHz MediaTek Helio A22 (MT6761)	600 MHz Qualcomm S1 MSM7627
RAM	1 GB	?	3 GB	512 MB
Storage	4 GB	? raw hardware	32 GB	512 MB
Main Camera	5 megapixel	1 megapixel	13 megapixel	3 megapixel
Wide Camera	-	-	5 megapixel	-
Tele Camera	-	-	-	-
Video Capture	720p HD	?	1080p HD	QVGA (320 x 240)
Front Camera	1 megapixel	-	5 megapixel	-
Weight	4.8 oz (136g)	3.17 oz (90g)	6.24 oz (177g)	4.76 oz (135g)
Dimensions	5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm)	3.71" x 1.95" x 0.68" (94 x 50 x 17.4 mm)	6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm)	4.47" x 2.47" x 0.46" (114 x 63 x 11.7 mm)
Form Factor	Slab	Clamshell	Slab	Slab
Platform / OS	Android	(proprietary)	Android	Android
Network Bands	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	GSM: 850, 1800, 1900 *	4G LTE: 2, 4, 5, 12, 14, 30	CDMA: 800, 850, 1900
Data Technology	LTE (Cat 3)	EDGE	LTE (Cat 4)	EVDO rA
Features
Barometer	-	-	Yes	-
Fingerprint Reader	-	-	Yes stand-alone	-
Flashlight	-	-	Yes	-
GPS / Location	n/a	-	n/a	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	n/a
Hearing Aid Compatible	Yes	Yes	Yes	-
Multiple Languages	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	-	Yes
Alerts
Extra Display	-	Yes	-	-
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Mobile Hotspot	n/a	-	n/a	n/a
USB	Yes Micro-USB	Yes Mini-USB	Yes USB Type C	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes 5 (802.11 a,ac,b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	-	n/a	n/a
Ringer ID	n/a	-	n/a	n/a
Voice Dialing	n/a	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a
Real-Music Ringers	n/a	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	-	n/a	n/a
WAP / Web Browser	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	Yes
Touch Screen	Yes	-	Yes	Yes
Memory
Memory Card Slot	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	-	n/a	n/a
EMS / Picture Messaging	n/a	Yes	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a
MMS	n/a	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	n/a	n/a
Music
FM Radio	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	Yes	Yes	Yes
Music Player	n/a	Yes	n/a	n/a
Productivity
Alarm	n/a	Yes	n/a	n/a
Calculator	n/a	Yes	n/a	n/a
Calendar	n/a	Yes	n/a	n/a
Voice Memo	n/a	-	n/a	n/a
Software
Games	n/a	Yes	n/a	n/a
Java (J2ME)	n/a	Yes	n/a	n/a
Voice
HD Voice	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Z998 / Unico LTE	Motorola EM330 / EM28	AT&T Maestro 3	Huawei Express
	X >	< X >	< X >	< X

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


Phone	ZTE Z998 / Unico LTE	Motorola EM330 / EM28	AT&T Maestro 3	Huawei Express