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Specifications
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Phone	Samsung M400	Samsung Transform Ultra	Samsung PM-A840	Samsung SPH-i550	ZTE Blade Max 3 / Max Blue
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Not yet released	Released
Display Size	2.4" diag. 4 : 3	3.5" diag. 5 : 3	?	?	6" diag. 16 : 9
Display Resolution & Type	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	320 x 320 pixels LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	1,000 mAh	1,500 mAh	?	?	4,000 mAh
Processor	400 MHz Qualcomm QSC6155	1 GHz Qualcomm Snapdragon S2 MSM8655	?	200 MHz Motorola MX-1	2 GHz Qualcomm Snapdragon 625 (MSM8953)
RAM	128 MB	?	?	?	2 GB
Storage	256 MB	? raw hardware	? raw hardware	? raw hardware	16 GB
Main Camera	1 megapixel	3 megapixel	Yes	1 megapixel	13 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	VGA (640 x 480)	-	?	4K UHD
Front Camera	-	Yes	-	-	5 megapixel
Weight	3.7 oz (105g)	4.9 oz (139g)	3.28 oz (93g)	?	6.34 oz (180g)
Dimensions	3.8" x 1.9" x 0.7" (97 x 48 x 17.8 mm)	4.5" x 2.4" x 0.55" (114 x 61 x 14 mm)	3.54" x 1.85" x 0.94" (90 x 47 x 23.9 mm)	3.46" x 2.34" x 1.1" (88 x 59 x 27.9 mm)	6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm)
Form Factor	Clamshell	Slide	Clamshell	Clamshell	Slab
Platform / OS	(proprietary)	Android	(proprietary)	Palm OS	Android
Network Bands	CDMA: 800, 850, 1900	CDMA: 800, 850, 1900	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900 AMPS: 850	4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	EVDO rA	1xRTT	1xRTT	LTE (Cat 4)
Features
Fingerprint Reader	-	-	-	-	Yes stand-alone
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	Yes	n/a	n/a
Accessibility
Adjustable Text Size	Yes	n/a	-	n/a	n/a
Hearing Aid Compatible	Yes	Yes	Yes	-	Yes
Multiple Languages	Yes	n/a	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	Yes	Yes	-
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	-	-	Yes Classic Audio
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	-	n/a	-	n/a	n/a
USB	Yes Micro-USB	Yes	-	-	Yes USB Type C
Wi-Fi	-	Yes 4 (802.11 a,b,g,n)	-	-	Yes 5 (802.11 ac,b,g,n)
Contacts
Picture ID	Yes	n/a	Yes	n/a	n/a
Ringer ID	Yes	n/a	Yes	n/a	n/a
Voice Dialing	Yes	n/a	Yes	n/a	n/a
Customization
Custom Graphics	Yes	n/a	Yes	n/a	n/a
Custom Ringtones	Yes	n/a	Yes	n/a	n/a
Real-Music Ringers	Yes	n/a	-	n/a	n/a
Data & Network
Data Tethering	-	n/a	-	n/a	n/a
WAP / Web Browser	Yes	n/a	Yes	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	n/a
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
Instant Messaging	-	n/a	-	n/a	n/a
MMS	Yes	n/a	-	n/a	n/a
Text Messaging Templates	Yes	n/a	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	Yes	Yes	-	-	Yes
Music Player	-	n/a	-	n/a	n/a
Power
Fast Charging	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	Yes	n/a	n/a
Calculator	Yes	n/a	Yes	n/a	n/a
Calendar	Yes	n/a	Yes	n/a	n/a
To-Do List	-	n/a	Yes	n/a	n/a
Voice Memo	Yes	n/a	Yes	n/a	n/a
Software
Games	Yes	n/a	Yes	n/a	n/a
Java (J2ME)	-	n/a	Yes	n/a	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	Yes	n/a	n/a
Speaker Phone	Yes	Yes	Yes	-	Yes
	Samsung M400	Samsung Transform Ultra	Samsung PM-A840	Samsung SPH-i550	ZTE Blade Max 3 / Max Blue
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung M400	Samsung Transform Ultra	Samsung PM-A840	Samsung SPH-i550	ZTE Blade Max 3 / Max Blue