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Phone	Ericsson R278d	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	HTC Dash / S620 / S621 (Excalibur)	Nokia Lumia 920	Samsung DoubleTime
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	?	4.5" diag. 5 : 3	3.2" diag. 5 : 3
Display Resolution & Type	101 x 40 pixels	240 x 320 pixels LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	768 x 1280 pixels (~332 ppi) LCD (TFT/TFD)	320 x 480 pixels (~180 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	1,490 mAh	960 mAh	2,000 mAh	1,200 mAh
Processor	?	400 MHz Intel XScale	200 MHz OMAP 850	1.5 GHz Qualcomm Snapdragon S4	600 MHz Qualcomm
RAM	?	?	?	1 GB	?
Storage	? raw hardware	? raw hardware	? raw hardware	32 GB	? raw hardware
Main Camera	-	Yes	1 megapixel	8 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	QCIF (176 x 144)	?	1080p HD	QVGA (320 x 240)
Front Camera	-	-	-	1 megapixel	-
Weight	9.28 oz (263g)	7.41 oz (210g)	4.23 oz (120g)	6.53 oz (185g)	5.22 oz (148g)
Dimensions	5.1" x 2" x 1" (130 x 51 x 25.4 mm)	4.92" x 2.83" x 0.75" (125 x 72 x 19.1 mm)	4.39" x 2.46" x 0.51" (112 x 62 x 13 mm)	5.12" x 2.79" x 0.42" (130 x 71 x 10.7 mm)	4.45" x 2.44" x 0.59" (113 x 62 x 15 mm)
Form Factor	Slab	Slide	Slab	Slab	Clamshell
Platform / OS	(proprietary)	Windows Mobile Professional	Windows Mobile Standard	Windows	Android
Network Bands	TDMA: 850, 1900 AMPS: 850	GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900
Data Technology	-	GPRS	EDGE	LTE (Cat 3)	HSPA 7.2
Features
GPS / Location	-	n/a	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	-	-	-	Yes M3, T3 (mostly tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	-	-	Yes	Yes	Yes
Alerts
Ringer Profiles	Yes	-	Yes	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	-	Yes	-
USB	-	Yes	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	-	Yes	Yes 802.11 b,g	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	-	n/a	n/a	n/a	n/a
Ringer ID	-	n/a	n/a	n/a	n/a
Voice Dialing	-	n/a	n/a	n/a	n/a
Customization
Custom Graphics	-	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	n/a
External Antenna Jack	-	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	Yes	-	Yes
Touch Screen	-	Yes	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	-	Yes	Yes	-	Yes
Messaging
Email Client	-	n/a	n/a	n/a	n/a
Instant Messaging	-	n/a	n/a	n/a	n/a
MMS	-	n/a	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	-	Yes	Yes
Music Player	-	n/a	n/a	n/a	n/a
Power
Wireless Charging	-	-	-	Yes	-
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	-	n/a	n/a	n/a	n/a
Calendar	-	n/a	n/a	n/a	n/a
To-Do List	-	n/a	n/a	n/a	n/a
Voice Memo	-	n/a	n/a	n/a	n/a
Software
Games	-	n/a	n/a	n/a	n/a
Java (J2ME)	-	n/a	n/a	n/a	n/a
Voice
Headset Jack (2.5 mm)	-	n/a	n/a	n/a	n/a
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Ericsson R278d	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	HTC Dash / S620 / S621 (Excalibur)	Nokia Lumia 920	Samsung DoubleTime
	X >	< X >	< X >	< X >	< X

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


Phone	Ericsson R278d	Siemens SX66 / MDA III / PDA2K (HTC Blue Angel)	HTC Dash / S620 / S621 (Excalibur)	Nokia Lumia 920	Samsung DoubleTime