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Phone	ZTE Blade Z Max	Samsung Rugby A837	Motorola KRZR K1	Casio Exilim C721	ZTE Agent
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	6" diag. 16 : 9	2" diag. 4 : 3	?	2.3" diag. 4 : 3	2.4" diag. 4 : 3
Display Resolution & Type	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	176 x 220 pixels (~141 ppi) LCD (TFT/TFD)	176 x 220 pixels LCD (TFT/TFD)	240 x 320 pixels (~174 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	?
Battery	4,080 mAh	1,000 mAh	780 mAh	920 mAh	900 mAh
Processor	1.4 GHz Qualcomm Snapdragon 435 (MSM8940)	?	?	?	?
RAM	2 GB	?	?	?	?
Storage	32 GB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	16 megapixel	1 megapixel	2 megapixel	5 megapixel	1 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	1080p HD	QCIF (176 x 144)	?	QVGA (320 x 240)	?
Front Camera	8 megapixel	-	-	-	-
Weight	6.58 oz (186g)	4.66 oz (132g)	3.6 oz (102g)	4.48 oz (127g)	3.53 oz (100g)
Dimensions	6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm)	3.95" x 2.05" x 0.9" (100 x 52 x 22.9 mm)	4.05" x 1.65" x 0.63" (103 x 42 x 16 mm)	4.06" x 1.97" x 0.78" (103 x 50 x 19.9 mm)	4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm)
Form Factor	Slab	Clamshell	Clamshell	Clamshell	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	(proprietary)
Network Bands	4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1700, 1900
Data Technology	LTE (Cat 6)	HSDPA 3.6	EDGE	EVDO rA	1xRTT
Features
Fingerprint Reader	Yes stand-alone	-	-	-	-
Flashlight	Yes	-	-	Yes	-
GPS / Location	n/a	Yes	-	Yes	Yes
Ruggedized	-	Yes	-	Yes	-
Water-Resistant	-	-	-	Yes	-
Accessibility
Adjustable Text Size	n/a	-	-	Yes	-
Hearing Aid Compatible	Yes M4, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	Yes	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	Yes	Yes	-
Ringer Profiles	-	-	Yes	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
USB	Yes USB Type C	Yes	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	-
Contacts
Picture ID	n/a	Yes	Yes	Yes	-
Ringer ID	n/a	Yes	Yes	Yes	Yes
Voice Dialing	n/a	-	Yes	Yes	-
Customization
Custom Graphics	n/a	Yes	Yes	Yes	Yes
Custom Ringtones	n/a	Yes	Yes	Yes	Yes
Real-Music Ringers	n/a	Yes	-	Yes	Yes
Data & Network
Data Tethering	n/a	Yes	Yes	Yes	-
WAP / Web Browser	n/a	Yes	Yes	Yes	Yes
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes Capacitive	-	-	-	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes	Yes
Messaging
Email Client	n/a	Yes	Yes	-	Yes
EMS / Picture Messaging	n/a	-	Yes	Yes	-
Instant Messaging	n/a	Yes	-	Yes	Yes
MMS	n/a	Yes	Yes	Yes	Yes
Text Messaging Templates	n/a	Yes	Yes	Yes	Yes
Music
FM Radio	Yes	-	-	-	-
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	Yes	Yes	Yes	Yes
Power
Fast Charging	Yes	-	-	-	-
Productivity
Alarm	n/a	Yes	Yes	Yes	Yes
Calculator	n/a	Yes	Yes	Yes	Yes
Calendar	n/a	Yes	Yes	Yes	Yes
To-Do List	n/a	-	-	Yes	-
Voice Memo	n/a	Yes	Yes	Yes	Yes
Software
BREW	n/a	-	-	Yes	Yes
Games	n/a	Yes	Yes	Yes	Yes
Java (J2ME)	n/a	Yes	Yes	-	-
Voice
HD Voice	Yes	-	-	-	-
Push-To-Talk	-	Yes	Yes *	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	ZTE Blade Z Max	Samsung Rugby A837	Motorola KRZR K1	Casio Exilim C721	ZTE Agent
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Blade Z Max	Samsung Rugby A837	Motorola KRZR K1	Casio Exilim C721	ZTE Agent