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Phone	Samsung Nexus S	Siemens SL55	ZTE Prelude / Avail 2	BlackBerry Z10 (CDMA)	Sony Ericsson Xperia X10 mini (2010)
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Not yet released
Display Size	4" diag. 5 : 3	?	3.5" diag. 5 : 3	4.2" diag. 5 : 3	2.6" diag. 4 : 3
Display Resolution & Type	480 x 800 pixels (~233 ppi) AMOLED	101 x 80 pixels LCD (STN)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	768 x 1280 pixels (~355 ppi) LCD (TFT/TFD)	240 x 320 pixels (~157 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	?	60 Hz
Battery	1,500 mAh	500 mAh	1,500 mAh	1,800 mAh	?
Processor	1 GHz Samsung Hummingbird Cortex A8	?	1 GHz Qualcomm Snapdragon MSM7225A	1.5 GHz Qualcomm Snapdragon S4	600 MHz Qualcomm S1 MSM7227
RAM	?	?	512 MB	2 GB	?
Storage	16 GB	? raw hardware	4 GB	16 GB	? raw hardware
Main Camera	5 megapixel	-	2 megapixel	8 megapixel	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	WVGA / 480p	-	VGA (640 x 480)	1080p HD	VGA (640 x 480)
Front Camera	Yes	-	-	2 megapixel	-
Weight	4.55 oz (129g)	2.79 oz (79g)	4.4 oz (125g)	4.78 oz (135g)	3.11 oz (88g)
Dimensions	4.88" x 2.48" x 0.43" (124 x 63 x 10.9 mm)	3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm)	4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm)	5.12" x 2.58" x 0.35" (130 x 66 x 9 mm)	3.26" x 1.97" x 0.64" (83 x 50 x 16.3 mm)
Form Factor	Slab	Slide	Slab	Slab	Slab
Platform / OS	Android	(proprietary)	Android	BlackBerry 10	Android
Network Bands	WCDMA: 1, 4, 8 GSM: 850, 900, 1800, 1900 *	GSM: 900, 1800, 1900	WCDMA: 2, 5 GSM: 850, 1900	4G LTE: 13 WCDMA: 1, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *
Data Technology	HSPA 7.2	GPRS	HSPA 7.2	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	-	Yes	-	-
Multiple Languages	n/a	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	-	-	Yes	Yes	-
Alerts
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes Classic Audio	-	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	n/a	-	n/a	n/a	n/a
NFC	Yes	-	-	Yes	-
USB	Yes Micro-USB	-	Yes	Yes Micro-USB	Yes Micro-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)	Yes 802.11 b,g
Contacts
Picture ID	n/a	Yes	n/a	n/a	n/a
Ringer ID	n/a	Yes	n/a	n/a	n/a
Voice Dialing	n/a	Yes	n/a	n/a	n/a
Customization
Custom Graphics	n/a	Yes	n/a	n/a	n/a
Custom Ringtones	n/a	Yes	n/a	n/a	n/a
Real-Music Ringers	n/a	-	n/a	n/a	n/a
Data & Network
Data Tethering	n/a	Yes	n/a	n/a	n/a
WAP / Web Browser	n/a	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	Yes	-	Yes	Yes	Yes
Memory
Memory Card Slot	-	-	Yes	Yes	Yes
Messaging
Email Client	n/a	Yes	n/a	n/a	n/a
EMS / Picture Messaging	n/a	Yes	n/a	n/a	n/a
Instant Messaging	n/a	-	n/a	n/a	n/a
MMS	n/a	Yes	n/a	n/a	n/a
Text Messaging Templates	n/a	Yes	n/a	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	Yes
Music Player	n/a	-	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
TV Output	-	-	-	Yes	-
Productivity
Alarm	n/a	Yes	n/a	n/a	n/a
Calculator	n/a	Yes	n/a	n/a	n/a
Calendar	n/a	Yes	n/a	n/a	n/a
To-Do List	n/a	Yes	n/a	n/a	n/a
Voice Memo	n/a	Yes	n/a	n/a	n/a
Software
Games	n/a	Yes	n/a	n/a	n/a
Java (J2ME)	n/a	Yes	n/a	n/a	n/a
Voice
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung Nexus S	Siemens SL55	ZTE Prelude / Avail 2	BlackBerry Z10 (CDMA)	Sony Ericsson Xperia X10 mini (2010)
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung Nexus S	Siemens SL55	ZTE Prelude / Avail 2	BlackBerry Z10 (CDMA)	Sony Ericsson Xperia X10 mini (2010)