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Phone	Samsung SPH-Z400	Kyocera Echo	Palm Treo 600 (CDMA)	Coolpad Defiant	BLU G90 Pro
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	1.9" diag. 4 : 3	3.5" diag. 5 : 3	?	5" diag. 16 : 9	6.5" diag. 19.5 : 9
Display Resolution & Type	176 x 220 pixels (~150 ppi) LCD (TFT/TFD)	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	160 x 160 pixels LCD (Color)	480 x 854 pixels (~196 ppi) LCD (TFT/TFD)	1080 x 2340 pixels (~396 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	60 Hz	60 Hz
Battery	1,300 mAh	1,370 mAh	?	2,450 mAh	5,000 mAh
Processor	?	1 GHz Qualcomm Snapdragon S1 QSD8650	?	1.4 GHz Qualcomm Snapdragon 425 (MSM8917)	2 GHz MediaTek Helio G90T
RAM	?	?	?	1 GB	4 GB
Storage	? raw hardware	? raw hardware	? raw hardware	8 GB	128 GB
Main Camera	1 megapixel	5 megapixel	Yes	5 megapixel	48 megapixel
Wide Camera	-	-	-	-	8 megapixel
Tele Camera	-	-	-	-	-
Video Capture	QCIF (176 x 144)	720p HD	-	720p HD	4K UHD
Front Camera	-	-	-	2 megapixel	32 megapixel
Weight	4.06 oz (115g)	6.8 oz (193g)	6.2 oz (176g)	6.5 oz (184g)	7.58 oz (215g)
Dimensions	3.73" x 1.91" x 1" (95 x 49 x 25.4 mm)	4.53" x 2.22" x 0.68" (115 x 56 x 17.2 mm)	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	5.69" x 2.81" x 0.4" (145 x 71 x 10.2 mm)	6.38" x 3.03" x 0.4" (162 x 77 x 10.2 mm)
Form Factor	Clamshell	Slab	Slab	Slab	Slab
Platform / OS	(proprietary)	Android	Palm OS	Android	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900
Data Technology	EVDO rA	EVDO rA	1xRTT	LTE (Cat 4)	LTE (Cat 6)
Features
Fingerprint Reader	-	-	-	-	Yes stand-alone
Flashlight	-	-	-	Yes	Yes
GPS / Location	Yes	n/a	n/a	n/a	n/a
Ruggedized	Yes	-	-	-	-
Accessibility
Adjustable Text Size	Yes	n/a	n/a	n/a	n/a
Hearing Aid Compatible	Yes	Yes	-	Yes	-
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	-	-	-
Connectivity
Bluetooth	Yes	Yes	-	Yes	Yes
Infrared (IR)	-	-	Yes	-	-
Mobile Hotspot	-	n/a	n/a	n/a	n/a
USB	Yes	Yes	Yes	Yes Micro-USB	Yes USB Type C
Wi-Fi	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	Yes	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	n/a
Dual-SIM	-	-	-	-	Yes
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	Yes	-	-
Touch Screen	-	Yes	Yes	Yes	Yes
Memory
Memory Card Slot	-	Yes	Yes	Yes	Yes
Messaging
Email Client	Yes	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	-	n/a	n/a	n/a	n/a
Text Messaging Templates	Yes	n/a	n/a	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	Yes	-	Yes	Yes
Music Player	-	n/a	n/a	n/a	n/a
Stereo Speakers	Yes	-	-	-	-
Power
Fast Charging	-	-	-	-	Yes
Wireless Charging	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	-	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Push-To-Talk	Yes	-	-	-	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung SPH-Z400	Kyocera Echo	Palm Treo 600 (CDMA)	Coolpad Defiant	BLU G90 Pro
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SPH-Z400	Kyocera Echo	Palm Treo 600 (CDMA)	Coolpad Defiant	BLU G90 Pro