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Phone	Cal-Comp EZ	HTC Droid Eris	Samsung Knack U310	Pantech C610	ZTE Blade X1 5G
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	2.2" diag. 4 : 3	2" diag. 4 : 3	6.5" diag. 19.5 : 9
Display Resolution & Type	128 x 128 pixels LCD (STN)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	176 x 220 pixels (~141 ppi) LCD (TFT/TFD)	1080 x 2340 pixels (~396 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	60 Hz
Battery	800 mAh	1,300 mAh	1,000 mAh	920 mAh	4,000 mAh
Processor	?	528 MHz MSM7600	?	?	2.4 GHz Qualcomm Snapdragon 765G
RAM	?	?	?	?	6 GB
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	128 GB
Main Camera	-	5 megapixel	-	1 megapixel	48 megapixel
Wide Camera	-	-	-	-	8 megapixel
Tele Camera	-	-	-	-	-
Video Capture	-	CIF (352 x 288)	-	QCIF (176 x 144)	4K UHD
Front Camera	-	-	-	-	16 megapixel
Weight	2.47 oz (70g)	4.43 oz (126g)	3.63 oz (103g)	3.35 oz (95g)	6.7 oz (190g)
Dimensions	4.04" x 1.71" x 0.63" (103 x 43 x 16 mm)	4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm)	3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm)	3.66" x 1.81" x 0.72" (93 x 46 x 18.3 mm)	6.46" x 2.99" x 0.36" (164 x 76 x 9.2 mm)
Form Factor	Slab	Slab	Clamshell	Clamshell	Slab
Platform / OS	(proprietary)	Android	(proprietary)	(proprietary)	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	5G: 2, 5, 66 4G LTE: 2, 4, 5, 12, 13, 66
Data Technology	1xRTT	EVDO rA	-	HSDPA 3.6	NR (5G)
Features
Barometer	-	-	-	-	Yes
Fingerprint Reader	-	-	-	-	Yes stand-alone
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	Yes	Yes	n/a
Accessibility
Adjustable Text Size	-	n/a	Yes	-	n/a
Hearing Aid Compatible	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	Yes	Yes	n/a
TTY/TDD (Digital)	-	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	Yes	Yes	-
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	-	Yes	Yes
NFC	-	-	-	-	Yes
USB	Yes Mini-USB	Yes Mini-USB	-	Yes	Yes USB Type C
Wi-Fi	-	Yes 802.11 b,g	-	-	Yes 5 (802.11 a,ac,b,g,n)
Contacts
Picture ID	-	n/a	-	Yes	n/a
Ringer ID	-	n/a	-	Yes	n/a
Voice Dialing	-	n/a	Yes	-	n/a
Customization
Custom Graphics	-	n/a	-	Yes	n/a
Custom Ringtones	-	n/a	-	Yes	n/a
Real-Music Ringers	-	n/a	-	Yes	n/a
Data & Network
WAP / Web Browser	-	n/a	-	Yes	n/a
Input
Predictive Text Entry	-	n/a	Yes	Yes	n/a
Side Keys	-	Yes	Yes	Yes	Yes
Touch Screen	-	Yes Capacitive	-	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	-	Yes	Yes
Messaging
Email Client	-	n/a	-	Yes	n/a
EMS / Picture Messaging	-	n/a	Yes	-	n/a
Instant Messaging	-	n/a	-	Yes	n/a
MMS	-	n/a	-	Yes	n/a
Text Messaging Templates	Yes	n/a	-	Yes	n/a
Music
Headphone Jack (3.5mm)	-	Yes	-	-	Yes
Music Player	-	n/a	-	Yes	n/a
Power
Fast Charging	-	-	-	-	Yes
Productivity
Alarm	Yes	n/a	Yes	Yes	n/a
Calculator	Yes	n/a	Yes	Yes	n/a
Calendar	Yes	n/a	Yes	Yes	n/a
To-Do List	Yes	n/a	-	-	n/a
Voice Memo	Yes *	n/a	-	Yes	n/a
Software
Games	-	n/a	-	Yes	n/a
Java (J2ME)	-	n/a	-	Yes	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	Yes	n/a	Yes	-	n/a
Speaker Phone	-	Yes	Yes	-	Yes
	* Some versions only
	Cal-Comp EZ	HTC Droid Eris	Samsung Knack U310	Pantech C610	ZTE Blade X1 5G
	X >	< X >	< X >	< X >	< X

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


Phone	Cal-Comp EZ	HTC Droid Eris	Samsung Knack U310	Pantech C610	ZTE Blade X1 5G