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Phone	Motorola Charm	UTStarcom Mini 8935	ZTE Z221	Motorola i415	Microsoft Lumia 550
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	2.8" diag. 4 : 3	1.5" diag. 1 : 1	2" diag. 4 : 3	?	4.7" diag. 16 : 9
Display Resolution & Type	320 x 240 pixels (~143 ppi) LCD (TFT/TFD)	128 x 128 pixels (~121 ppi) LCD (TFT/TFD)	240 x 320 pixels (~200 ppi) LCD (TFT/TFD)	130 x 130 pixels LCD (STN)	720 x 1280 pixels (~312 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	?
Battery	1,170 mAh	770 mAh	900 mAh	?	2,100 mAh
Processor	720 MHz TI OMAP3410	Qualcomm MSM6050	?	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM	?	?	?	?	1 GB
Storage	? raw hardware	? raw hardware	142 MB	? raw hardware	8 GB
Main Camera	3 megapixel	Yes	Yes	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	-	QCIF (176 x 144)	-	720p HD
Front Camera	-	-	-	-	2 megapixel
Weight	3.88 oz (110g)	2.8 oz (79g)	3.24 oz (92g)	4.7 oz (133g)	5.01 oz (142g)
Dimensions	3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm)	3.3" x 1.7" x 0.7" (84 x 43 x 17.8 mm)	3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm)	5.5" x 1.9" x 0.85" (140 x 48 x 21.6 mm)	5.36" x 2.67" x 0.39" (136 x 68 x 9.9 mm)
Form Factor	Slab	Clamshell	Clamshell	Slab	Slab
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Windows
Network Bands	WCDMA: 4 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	iDEN: 800	4G LTE: 2, 4, 5, 7, 12, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	HSDPA 3.6	1xRTT	HSDPA 3.6	-	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	Yes	Yes	n/a
Accessibility
Adjustable Text Size	n/a	-	-	-	n/a
Hearing Aid Compatible	-	Yes M4 (very compatible)	Yes M3, T3 (mostly tele-coil compatible)	-	Yes M3, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	Yes	-	-
Ringer Profiles	-	-	Yes	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes Micro-USB	-	Yes	Yes	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	-	Yes	n/a
Ringer ID	n/a	Yes	-	Yes	n/a
Voice Dialing	n/a	Yes	-	Yes	n/a
Customization
Custom Graphics	n/a	Yes	Yes	Yes	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	Yes	Yes	Yes	n/a
Data & Network
Data Tethering	n/a	-	-	Yes	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
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	-	Yes	-	n/a
EMS / Picture Messaging	n/a	Yes	-	-	n/a
Instant Messaging	n/a	-	Yes	-	n/a
MMS	n/a	Yes	Yes	Yes	n/a
Text Messaging Templates	n/a	Yes	Yes	Yes	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	Yes	-	-	-	Yes
Music Player	n/a	-	-	-	n/a
Productivity
Alarm	n/a	Yes	Yes	-	n/a
Calculator	n/a	Yes	Yes	-	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	-	-	-	n/a
Voice Memo	n/a	Yes	Yes	Yes	n/a
Software
BREW	n/a	Yes	-	-	n/a
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	-	Yes	Yes	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	-	-	Yes	n/a
Push-To-Talk	-	-	-	Yes	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Motorola Charm	UTStarcom Mini 8935	ZTE Z221	Motorola i415	Microsoft Lumia 550
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NOTE: Differences are highlighted with bold / black text for visual clarity only.


Phone	Motorola Charm	UTStarcom Mini 8935	ZTE Z221	Motorola i415	Microsoft Lumia 550