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Specifications
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Phone	AT&T Maestro 3	Ericsson R520	ZTE Blade Z Max	Samsung SCH-A610	ZTE Blade X Max
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	6.5" diag. 20 : 9	?	6" diag. 16 : 9	?	6" diag. 16 : 9
Display Resolution & Type	720 x 1600 pixels (~270 ppi) LCD (TFT/TFD)	?	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	?	60 Hz
Battery	3,900 mAh	?	4,080 mAh	1,300 mAh	3,400 mAh
Processor	2 GHz MediaTek Helio A22 (MT6761)	?	1.4 GHz Qualcomm Snapdragon 435 (MSM8940)	?	1.4 GHz Qualcomm Snapdragon 435 (MSM8940)
RAM	3 GB	?	2 GB	?	2 GB
Storage	32 GB	? raw hardware	32 GB	? raw hardware	32 GB
Main Camera	13 megapixel	-	16 megapixel	Yes	13 megapixel
Wide Camera	5 megapixel	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	-	1080p HD	-	1080p HD
Front Camera	5 megapixel	-	8 megapixel	-	5 megapixel
Weight	6.24 oz (177g)	4.23 oz (120g)	6.58 oz (186g)	4.23 oz (120g)	6.93 oz (196g)
Dimensions	6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm)	5.12" x 1.97" x 0.63" (130 x 50 x 16 mm)	6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm)	3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm)	6.5" x 3.27" x 0.37" (165 x 83 x 9.4 mm)
Form Factor	Slab	Slab	Slab	Clamshell	Slab
Platform / OS	Android	(proprietary)	Android	(proprietary)	Android
Network Bands	4G LTE: 2, 4, 5, 12, 14, 30	GSM: 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	LTE (Cat 4)	GPRS	LTE (Cat 6)	1xRTT	LTE (Cat 4)
Features
Barometer	Yes	-	-	-	-
Fingerprint Reader	Yes stand-alone	-	Yes stand-alone	-	Yes stand-alone
Flashlight	Yes	-	Yes	-	Yes
GPS / Location	n/a	-	n/a	Yes	n/a
Accessibility
Hearing Aid Compatible	Yes M4, T4 (very tele-coil compatible)	-	Yes M4, T3 (mostly tele-coil compatible)	-	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	-	-	Yes	-	Yes
Alerts
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Infrared (IR)	-	Yes	-	-	-
USB	Yes USB Type C	-	Yes USB Type C	-	Yes USB Type C
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
Ringer ID	n/a	-	n/a	Yes	n/a
Voice Dialing	n/a	Yes	n/a	Yes	n/a
Customization
Custom Graphics	n/a	-	n/a	Yes	n/a
Custom Ringtones	n/a	Yes	n/a	Yes	n/a
Data & Network
Data Tethering	n/a	Yes	n/a	Yes	n/a
WAP / Web Browser	n/a	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
EMS / Picture Messaging	n/a	-	n/a	Yes	n/a
MMS	n/a	-	n/a	Yes	n/a
Text Messaging Templates	n/a	Yes	n/a	Yes	n/a
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Power
Fast Charging	-	-	Yes	-	Yes
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	Yes	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
To-Do List	n/a	-	n/a	Yes	n/a
Voice Memo	n/a	Yes	n/a	Yes	n/a
Software
BREW	n/a	-	n/a	Yes	n/a
Games	n/a	Yes	n/a	Yes	n/a
Voice
HD Voice	Yes	-	Yes	-	-
Headset Jack (2.5 mm)	n/a	-	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	AT&T Maestro 3	Ericsson R520	ZTE Blade Z Max	Samsung SCH-A610	ZTE Blade X Max
	X >	< X >	< X >	< X >	< X

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


Phone	AT&T Maestro 3	Ericsson R520	ZTE Blade Z Max	Samsung SCH-A610	ZTE Blade X Max