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Phone	Samsung SGH-X640	Sony Ericsson Xperia X10 mini pro (2010)	Cricket Ovation / AT&T Radiant Max	Motorola v66	Sanyo SCP-3810 / Mirro
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	2.6" diag. 4 : 3	6.5" diag. 19.5 : 9	?	2.4" diag. 4 : 3
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	240 x 320 pixels (~154 ppi) LCD (TFT/TFD)	720 x 1560 pixels (~264 ppi) LCD (TFT/TFD)	?	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	?
Battery	800 mAh	930 mAh	4,000 mAh	?	1,000 mAh
Processor	?	600 MHz Qualcomm S1 MSM7227	2 GHz MediaTek Helio P22 (MT6762)	?	?
RAM	?	?	3 GB	?	?
Storage	? raw hardware	? raw hardware	32 GB	? raw hardware	? raw hardware
Main Camera	Yes	5 megapixel	13 megapixel	-	1 megapixel
Wide Camera	-	-	5 megapixel	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	VGA (640 x 480)	1080p HD	-	-
Front Camera	-	-	8 megapixel	-	-
Weight	3 oz (85g)	4.2 oz (119g)	6.18 oz (175g)	2.79 oz (79g)	3.97 oz (112g)
Dimensions	3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm)	3.5" x 2" x 0.7" (89 x 51 x 17.8 mm)	6.71" x 3" x 0.35" (170 x 76 x 8.9 mm)	3.31" x 1.73" x 0.83" (84 x 44 x 21.1 mm)	3.82" x 2.01" x 0.71" (97 x 51 x 18.1 mm)
Form Factor	Clamshell	Slide	Slab	Clamshell	Clamshell
Platform / OS	(proprietary)	Android	Android	(proprietary)	(proprietary)
Network Bands	GSM: 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 14, 29, 30, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	CDMA: 850, 1900
Data Technology	GPRS	HSPA 7.2	LTE (Cat 4)	GPRS	1xRTT
Features
Fingerprint Reader	-	-	Yes stand-alone	-	-
Flashlight	-	-	Yes	-	-
GPS / Location	-	n/a	n/a	-	Yes
Accessibility
Adjustable Text Size	-	n/a	n/a	-	Yes
Hearing Aid Compatible	-	-	Yes M4, T4 (very tele-coil compatible)	-	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	-	Yes
TTY/TDD (Digital)	-	-	Yes	-	Yes
Alerts
Extra Display	-	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	-	Yes
NFC	-	-	Yes	-	-
USB	-	Yes Micro-USB	Yes USB Type C	Yes	Yes Micro-USB
Wi-Fi	-	Yes	Yes 5 (802.11 a,ac,b,g,n)	-	-
Contacts
Picture ID	Yes	n/a	n/a	-	Yes
Ringer ID	Yes	n/a	n/a	-	Yes
Voice Dialing	-	n/a	n/a	Yes	Yes
Customization
Custom Graphics	Yes	n/a	n/a	-	Yes
Custom Ringtones	Yes	n/a	n/a	-	Yes
Real-Music Ringers	-	n/a	n/a	-	Yes
Data & Network
Data Tethering	-	n/a	n/a	Yes	Yes
WAP / Web Browser	Yes	n/a	n/a	Yes	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	Yes	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	-	Yes Capacitive	Yes Capacitive	-	-
Memory
Memory Card Slot	-	Yes	Yes	-	-
Messaging
Email Client	-	n/a	n/a	-	Yes
EMS / Picture Messaging	Yes	n/a	n/a	-	-
Instant Messaging	-	n/a	n/a	-	Yes
MMS	Yes	n/a	n/a	-	-
Text Messaging Templates	Yes	n/a	n/a	-	Yes
Music
FM Radio	-	Yes	-	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	-	-
Music Player	-	n/a	n/a	-	-
Productivity
Alarm	Yes	n/a	n/a	Yes	Yes
Calculator	Yes	n/a	n/a	Yes	Yes
Calendar	Yes	n/a	n/a	Yes	Yes
To-Do List	Yes	n/a	n/a	-	Yes
Voice Memo	Yes	n/a	n/a	Yes	Yes
Software
Games	Yes	n/a	n/a	Yes	Yes
Java (J2ME)	Yes	n/a	n/a	-	Yes
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	Yes	Yes
Speaker Phone	Yes	Yes	Yes	-	Yes
	Samsung SGH-X640	Sony Ericsson Xperia X10 mini pro (2010)	Cricket Ovation / AT&T Radiant Max	Motorola v66	Sanyo SCP-3810 / Mirro
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Samsung SGH-X640	Sony Ericsson Xperia X10 mini pro (2010)	Cricket Ovation / AT&T Radiant Max	Motorola v66	Sanyo SCP-3810 / Mirro