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Specifications
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Phone	HTC ThunderBolt	Samsung Ace SPH-i325	BLU Life One X2 Mini	Nokia N81	Samsung SCH-A990
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.3" diag. 5 : 3	2.3" diag. 4 : 3	5" diag. 16 : 9	2.4" diag. 4 : 3	?
Display Resolution & Type	480 x 800 pixels (~217 ppi) LCD (TFT/TFD)	320 x 240 pixels (~174 ppi) LCD (TFT/TFD)	1080 x 1920 pixels (~441 ppi) LCD (TFT/TFD)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)
Display Refresh	60 Hz	?	60 Hz	?	?
Battery	1,400 mAh	1,300 mAh	3,000 mAh	1,050 mAh	1,000 mAh
Processor	1 GHz Qualcomm Snapdragon S2 MSM8655	416 MHz PXA270	1.4 GHz Qualcomm Snapdragon 430 (MSM8937)	369 MHz ARM 11	?
RAM	768 MB	?	4 GB	?	?
Storage	8 GB	? raw hardware	64 GB	8 GB *	? raw hardware
Main Camera	8 megapixel	1 megapixel	13 megapixel	2 megapixel	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	QVGA (320 x 240)	1080p HD	VGA (640 x 480)	?
Front Camera	1 megapixel	-	8 megapixel	-	-
Weight	5.78 oz (164g)	3.9 oz (111g)	5.25 oz (149g)	4.94 oz (140g)	4.4 oz (125g)
Dimensions	4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm)	4.65" x 2.32" x 0.46" (118 x 59 x 11.7 mm)	5.5" x 2.7" x 0.3" (140 x 69 x 7.6 mm)	4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm)	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)
Form Factor	Slab	Slab	Slab	Slide	Clamshell
Platform / OS	Android	Windows Mobile Standard	Android	S60 (Symbian)	(proprietary)
Network Bands	4G LTE: 13 CDMA: 850, 1900	CDMA: 850, 1900 GSM: 900, 1800	4G LTE: 2, 4, 7, 12, 17 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900
Data Technology	LTE (Cat 3)	EVDO r0	LTE (Cat 4)	EDGE	EVDO r0
Features
Fingerprint Reader	-	-	Yes stand-alone	-	-
Flashlight	Yes	-	Yes	-	Yes
GPS / Location	n/a	n/a	n/a	n/a	Yes
Accessibility
Hearing Aid Compatible	Yes	Yes M3, T3 (mostly tele-coil compatible)	-	-	Yes M3 (mostly compatible)
Multiple Languages	n/a	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	-	-	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	Yes	-	Yes	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Mobile Hotspot	n/a	n/a	n/a	n/a	-
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes Micro-USB	Yes
Wi-Fi	Yes 4 (802.11 b,g,n)	-	Yes 4 (802.11 b,g,n)	Yes 802.11 b,g	-
Contacts
Picture ID	n/a	n/a	n/a	n/a	Yes
Ringer ID	n/a	n/a	n/a	n/a	Yes
Voice Dialing	n/a	n/a	n/a	n/a	Yes
Customization
Custom Graphics	n/a	n/a	n/a	n/a	Yes
Custom Ringtones	n/a	n/a	n/a	n/a	Yes
Real-Music Ringers	n/a	n/a	n/a	n/a	Yes
Data & Network
Data Tethering	n/a	n/a	n/a	n/a	Yes
Dual-SIM	-	-	Yes	-	-
WAP / Web Browser	n/a	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	n/a	n/a	n/a	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	-	-
Touch Screen	Yes Capacitive	-	Yes Capacitive	-	-
Memory
Memory Card Slot	Yes	Yes	Yes	Yes *	Yes
Messaging
Email Client	n/a	n/a	n/a	n/a	-
EMS / Picture Messaging	n/a	n/a	n/a	n/a	Yes
Instant Messaging	n/a	n/a	n/a	n/a	-
MMS	n/a	n/a	n/a	n/a	Yes
Text Messaging Templates	n/a	n/a	n/a	n/a	Yes
Music
FM Radio	Yes	-	Yes	Yes	-
Headphone Jack (3.5mm)	Yes	-	Yes	Yes	-
Music Player	n/a	n/a	n/a	n/a	Yes
Stereo Speakers	-	-	-	Yes	Yes
Photo & Video
DLNA	Yes	-	-	-	-
TV Output	-	-	-	-	Yes
Video Calling	n/a	n/a	n/a	n/a	-
Power
Fast Charging	-	-	Yes	-	-
Productivity
Alarm	n/a	n/a	n/a	n/a	Yes
Calculator	n/a	n/a	n/a	n/a	Yes
Calendar	n/a	n/a	n/a	n/a	Yes
To-Do List	n/a	n/a	n/a	n/a	-
Voice Memo	n/a	n/a	n/a	n/a	Yes
Software
BREW	n/a	n/a	n/a	n/a	Yes
Games	n/a	n/a	n/a	n/a	Yes
Java (J2ME)	n/a	n/a	n/a	n/a	-
Voice
Push-To-Talk	-	-	-	Yes *	-
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	HTC ThunderBolt	Samsung Ace SPH-i325	BLU Life One X2 Mini	Nokia N81	Samsung SCH-A990
	X >	< X >	< X >	< X >	< X

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


Phone	HTC ThunderBolt	Samsung Ace SPH-i325	BLU Life One X2 Mini	Nokia N81	Samsung SCH-A990