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Phone	Samsung SGH-X640	Motorola C290	Motorola Moto Z2 Force	Samsung SPH-Z400	Palm Treo 650 (CDMA)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	5.5" diag. 16 : 9	1.9" diag. 4 : 3	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	1440 x 2560 pixels (~534 ppi) AMOLED	176 x 220 pixels (~150 ppi) LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	?	?
Battery	800 mAh	1,020 mAh	2,730 mAh	1,300 mAh	?
Processor	?	?	2.4 GHz Qualcomm Snapdragon 835 (MSM8998)	?	312 MHz Intel XScale PXA270
RAM	?	?	4 GB	?	?
Storage	? raw hardware	? raw hardware	64 GB	? raw hardware	? raw hardware
Main Camera	Yes	-	12 megapixel	1 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	4K UHD	QCIF (176 x 144)	QVGA (320 x 240)
Front Camera	-	-	5 megapixel	-	-
Weight	3 oz (85g)	3.53 oz (100g)	5.04 oz (143g)	4.06 oz (115g)	6.3 oz (179g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.43" x 1.91" x 0.93" (87 x 49 x 23.6 mm)	6.13" x 2.99" x 0.24" (156 x 76 x 6.1 mm)	3.73" x 1.91" x 1" (95 x 49 x 25.4 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)
Form Factor	Clamshell	Clamshell	Slab	Clamshell	Slab
Platform / OS	(proprietary)	(proprietary)	Android	(proprietary)	Palm OS
Network Bands	GSM: 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	GPRS	1xRTT	LTE (Cat 16)	EVDO rA	1xRTT
Features
Barometer	-	-	Yes	-	-
Fingerprint Reader	-	-	Yes stand-alone	-	-
Flashlight	-	-	Yes	-	-
GPS / Location	-	Yes	n/a	Yes	n/a
Ruggedized	-	-	-	Yes	-
VR-ready	-	-	Yes	-	-
Water-Resistant	-	-	Yes	-	-
Accessibility
Adjustable Text Size	-	-	n/a	Yes	n/a
Hearing Aid Compatible	-	Yes M3 (mostly compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M4 (very compatible)	-
Multiple Languages	Yes	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	-
Alerts
Extra Display	-	-	-	Yes	-
Connectivity
Bluetooth	-	-	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
NFC	-	-	Yes	-	-
USB	-	Yes Mini-USB	Yes USB Type C	Yes	-
Wi-Fi	-	-	Yes 5 (802.11 a,ac,b,g,n)	-	-
Contacts
Picture ID	Yes	Yes	n/a	Yes	n/a
Ringer ID	Yes	Yes	n/a	Yes	n/a
Voice Dialing	-	-	n/a	Yes	n/a
Customization
Custom Graphics	Yes	-	n/a	Yes	n/a
Custom Ringtones	Yes	-	n/a	Yes	n/a
Real-Music Ringers	-	Yes	n/a	Yes	n/a
Data & Network
Data Tethering	-	-	n/a	Yes	n/a
Dual-SIM	-	-	Yes *	-	-
External Antenna Jack	-	Yes	n/a	-	n/a
WAP / Web Browser	Yes	Yes	n/a	Yes	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	-	-	Yes Capacitive	-	Yes
Memory
Memory Card Slot	-	-	Yes	-	Yes
Messaging
Email Client	-	-	n/a	Yes	n/a
EMS / Picture Messaging	Yes	-	n/a	-	n/a
MMS	Yes	-	n/a	-	n/a
Text Messaging Templates	Yes	Yes	n/a	Yes	n/a
Music
Music Player	-	-	n/a	-	n/a
Stereo Speakers	-	-	-	Yes	-
Power
Fast Charging	-	-	Yes	-	-
Productivity
Alarm	Yes	Yes	n/a	Yes	n/a
Calculator	Yes	Yes	n/a	Yes	n/a
Calendar	Yes	Yes	n/a	Yes	n/a
To-Do List	Yes	-	n/a	-	n/a
Voice Memo	Yes	Yes	n/a	Yes	n/a
Software
Games	Yes	Yes	n/a	Yes	n/a
Java (J2ME)	Yes	Yes	n/a	Yes	n/a
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	Yes	n/a	Yes	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-X640	Motorola C290	Motorola Moto Z2 Force	Samsung SPH-Z400	Palm Treo 650 (CDMA)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-X640	Motorola C290	Motorola Moto Z2 Force	Samsung SPH-Z400	Palm Treo 650 (CDMA)