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Phone	Palm Treo 650 (CDMA)	Samsung SPH-Z400	Motorola Charm	ZTE Blade Max 3 / Max Blue	Sanyo SCP-3100
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	1.9" diag. 4 : 3	2.8" diag. 4 : 3	6" diag. 16 : 9	?
Display Resolution & Type	320 x 320 pixels LCD (TFT/TFD)	176 x 220 pixels (~150 ppi) LCD (TFT/TFD)	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (STN)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	?	1,300 mAh	1,170 mAh	4,000 mAh	1,000 mAh
Processor	312 MHz Intel XScale PXA270	?	720 MHz TI OMAP3410	2 GHz Qualcomm Snapdragon 625 (MSM8953)	?
RAM	?	?	?	2 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	16 GB	? raw hardware
Main Camera	Yes	1 megapixel	3 megapixel	13 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	QVGA (320 x 240)	QCIF (176 x 144)	?	4K UHD	-
Front Camera	-	-	-	5 megapixel	-
Weight	6.3 oz (179g)	4.06 oz (115g)	3.88 oz (110g)	6.34 oz (180g)	3.5 oz (99g)
Dimensions	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	3.73" x 1.91" x 1" (95 x 49 x 25.4 mm)	3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm)	6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm)	3.31" x 1.83" x 1.01" (84 x 46 x 25.7 mm)
Form Factor	Slab	Clamshell	Slab	Slab	Clamshell
Platform / OS	Palm OS	(proprietary)	Android	Android	(proprietary)
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 4 GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850
Data Technology	1xRTT	EVDO rA	HSDPA 3.6	LTE (Cat 4)	1xRTT
Features
Fingerprint Reader	-	-	-	Yes stand-alone	-
Flashlight	-	-	-	Yes	-
GPS / Location	n/a	Yes	n/a	n/a	Yes
Ruggedized	-	Yes	-	-	-
Accessibility
Adjustable Text Size	n/a	Yes	n/a	n/a	-
Hearing Aid Compatible	-	Yes M4 (very compatible)	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	n/a	Yes
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	-	Yes
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	-
Infrared (IR)	Yes	-	-	-	-
USB	-	Yes	Yes Micro-USB	Yes USB Type C	Yes
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 ac,b,g,n)	-
Contacts
Picture ID	n/a	Yes	n/a	n/a	Yes
Ringer ID	n/a	Yes	n/a	n/a	Yes
Voice Dialing	n/a	Yes	n/a	n/a	Yes
Customization
Custom Graphics	n/a	Yes	n/a	n/a	Yes
Custom Ringtones	n/a	Yes	n/a	n/a	Yes
Real-Music Ringers	n/a	Yes	n/a	n/a	-
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	-
External Antenna Jack	n/a	-	n/a	n/a	Yes
WAP / Web Browser	n/a	Yes	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	Yes	-	-
Touch Screen	Yes	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	Yes	-	Yes	Yes	-
Messaging
Email Client	n/a	Yes	n/a	n/a	-
Instant Messaging	n/a	-	n/a	n/a	-
MMS	n/a	-	n/a	n/a	-
Text Messaging Templates	n/a	Yes	n/a	n/a	-
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	n/a	-	n/a	n/a	-
Stereo Speakers	-	Yes	-	-	-
Power
Fast Charging	-	-	-	Yes	-
Productivity
Alarm	n/a	Yes	n/a	n/a	Yes
Calculator	n/a	Yes	n/a	n/a	Yes
Calendar	n/a	Yes	n/a	n/a	Yes
To-Do List	n/a	-	n/a	n/a	-
Voice Memo	n/a	Yes	n/a	n/a	Yes
Software
Games	n/a	Yes	n/a	n/a	Yes
Java (J2ME)	n/a	Yes	n/a	n/a	Yes
Voice
Call Screening	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	Yes	n/a	n/a	Yes
Push-To-Talk	-	Yes	-	-	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Palm Treo 650 (CDMA)	Samsung SPH-Z400	Motorola Charm	ZTE Blade Max 3 / Max Blue	Sanyo SCP-3100
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 650 (CDMA)	Samsung SPH-Z400	Motorola Charm	ZTE Blade Max 3 / Max Blue	Sanyo SCP-3100