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Phone	Samsung Galaxy Alpha	Motorola RAZR V3i / V3t / V3e / V3r	HTC Droid Eris	Samsung Knack U310	Motorola Droid 2
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.7" diag. 16 : 9	?	3.2" diag. 5 : 3	2.2" diag. 4 : 3	3.7" diag. 16 : 9
Display Resolution & Type	720 x 1280 pixels (~312 ppi) AMOLED	176 x 220 pixels LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)	176 x 220 pixels (~128 ppi) LCD (TFT/TFD)	480 x 854 pixels (~265 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	?	60 Hz
Battery	1,860 mAh	710 mAh	1,300 mAh	1,000 mAh	1,390 mAh
Processor	2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC)	?	528 MHz MSM7600	?	1 GHz TI OMAP3620
RAM	2 GB	?	?	?	?
Storage	32 GB	? raw hardware	? raw hardware	? raw hardware	8 GB
Main Camera	12 megapixel	1 megapixel	5 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	4K UHD	?	CIF (352 x 288)	-	WVGA / 480p
Front Camera	2 megapixel	-	-	-	-
Weight	4.06 oz (115g)	3.53 oz (100g)	4.43 oz (126g)	3.63 oz (103g)	5.96 oz (169g)
Dimensions	5.21" x 2.58" x 0.26" (132 x 66 x 6.7 mm)	3.86" x 2.09" x 0.55" (98 x 53 x 14 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)	4.58" x 2.38" x 0.54" (116 x 61 x 13.7 mm)
Form Factor	Slab	Clamshell	Slab	Clamshell	Slide
Platform / OS	Android	(proprietary)	Android	(proprietary)	Android
Network Bands	4G LTE: 1, 2, 3, 4, 5, 7, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	CDMA: 850, 1900	CDMA: 850, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 4)	GPRS	EVDO rA	-	EVDO rA
Features
Fingerprint Reader	Yes	-	-	-	-
Flashlight	Yes	-	-	-	-
GPS / Location	n/a	-	n/a	Yes	n/a
Accessibility
Adjustable Text Size	n/a	-	n/a	Yes	n/a
Hearing Aid Compatible	Yes M3 (mostly compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	n/a	Yes	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	Yes	-	Yes	-
Ringer Profiles	-	Yes	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	-	Yes
Mobile Hotspot	n/a	-	n/a	-	n/a
NFC	Yes	-	-	-	-
USB	Yes	Yes Mini-USB	Yes Mini-USB	-	Yes Micro-USB
Wi-Fi	Yes 5 (802.11 a,ac,b,g,n)	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	n/a	Yes	n/a	-	n/a
Ringer ID	n/a	Yes	n/a	-	n/a
Voice Dialing	n/a	Yes	n/a	Yes	n/a
Customization
Custom Graphics	n/a	Yes	n/a	-	n/a
Custom Ringtones	n/a	Yes	n/a	-	n/a
Real-Music Ringers	n/a	Yes	n/a	-	n/a
Data & Network
Data Tethering	n/a	-	n/a	-	n/a
WAP / Web Browser	n/a	Yes	n/a	-	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	Yes Capacitive	-	Yes Capacitive	-	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	n/a	Yes	n/a	-	n/a
EMS / Picture Messaging	n/a	Yes	n/a	Yes	n/a
Instant Messaging	n/a	-	n/a	-	n/a
MMS	n/a	Yes	n/a	-	n/a
Text Messaging Templates	n/a	Yes *	n/a	-	n/a
Music
Headphone Jack (3.5mm)	Yes	-	Yes	-	Yes
Music Player	n/a	Yes	n/a	-	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
DLNA	-	-	-	-	Yes
TV Output	Yes	-	-	-	-
Productivity
Alarm	n/a	Yes	n/a	Yes	n/a
Calculator	n/a	Yes	n/a	Yes	n/a
Calendar	n/a	Yes	n/a	Yes	n/a
Voice Memo	n/a	Yes	n/a	-	n/a
Software
Games	n/a	Yes	n/a	-	n/a
Java (J2ME)	n/a	Yes	n/a	-	n/a
Voice
HD Voice	Yes	-	-	-	-
Headset Jack (2.5 mm)	n/a	-	n/a	Yes	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung Galaxy Alpha	Motorola RAZR V3i / V3t / V3e / V3r	HTC Droid Eris	Samsung Knack U310	Motorola Droid 2
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Galaxy Alpha	Motorola RAZR V3i / V3t / V3e / V3r	HTC Droid Eris	Samsung Knack U310	Motorola Droid 2