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Phone	Samsung SCH-A870 / Siren	HTC G1	Nokia 6275i	BlackBerry Pearl 3G 9100 / 9105	Nokia 6255i / 6256i
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.2" diag. 5 : 3	?	2.3" diag. 1 : 1	?
Display Resolution & Type	128 x 160 pixels LCD (TFT/TFD)	320 x 480 pixels (~182 ppi) LCD (TFT/TFD)	240 x 320 pixels LCD (TFT/TFD)	360 x 400 pixels (~238 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	?	?	?
Battery	1,000 mAh	1,150 mAh	1,150 mAh	1,150 mAh	1,070 mAh
Processor	?	528 MHz Qualcomm MSM7201A	?	?	?
RAM	?	?	?	?	?
Storage	? raw hardware	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	Yes	3 megapixel	2 megapixel	3 megapixel	Yes
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	?	?	?
Front Camera	-	-	-	-	-
Weight	3.4 oz (96g)	5.6 oz (159g)	3.7 oz (105g)	3.3 oz (94g)	4.23 oz (120g)
Dimensions	3.6" x 1.8" x 0.85" (91 x 46 x 21.6 mm)	4.62" x 2.19" x 0.67" (117 x 56 x 17 mm)	4.29" x 1.69" x 0.67" (109 x 43 x 17 mm)	4.25" x 1.96" x 0.52" (108 x 50 x 13.2 mm)	3.36" x 1.87" x 0.97" (85 x 47 x 24.6 mm)
Form Factor	Clamshell	Slide	Slab	Slab	Clamshell
Platform / OS	(proprietary)	Android	(proprietary)	BlackBerry OS	(proprietary)
Network Bands	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	CDMA: 850, 1900 AMPS: 850	WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 *	CDMA: 850, 1900 AMPS: 850
Data Technology	1xRTT	HSPA 7.2	1xRTT	HSDPA 3.6	1xRTT
Features
GPS / Location	Yes	n/a	Yes	n/a	Yes
Accessibility
Adjustable Text Size	-	n/a	-	n/a	-
Hearing Aid Compatible	Yes	-	-	Yes	Yes
Multiple Languages	Yes	n/a	Yes	n/a	Yes
TTY/TDD (Digital)	Yes	-	Yes	-	Yes
Alerts
Extra Display	Yes	-	-	-	Yes
Ringer Profiles	-	-	Yes	Yes	Yes
Connectivity
Bluetooth	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Infrared (IR)	-	-	Yes	-	Yes
USB	-	Yes Mini-USB	Yes	Yes Micro-USB	Yes
Wi-Fi	-	Yes 802.11 b,g	-	Yes 4 (802.11 b,g,n)	-
Contacts
Picture ID	Yes	n/a	Yes	n/a	Yes
Ringer ID	-	n/a	Yes	n/a	Yes
Voice Dialing	Yes	n/a	Yes	n/a	Yes
Customization
Custom Graphics	Yes	n/a	Yes	n/a	Yes
Custom Ringtones	Yes	n/a	Yes	n/a	Yes
Real-Music Ringers	-	n/a	Yes	n/a	Yes
Data & Network
Data Tethering	-	n/a	Yes	n/a	Yes
WAP / Web Browser	Yes	n/a	Yes	n/a	Yes
Input
Predictive Text Entry	Yes	n/a	Yes	n/a	Yes
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	Yes *	-
Touch Screen	-	Yes	-	-	-
Memory
Memory Card Slot	-	Yes	Yes	Yes	Yes
Messaging
Email Client	-	n/a	-	n/a	Yes
EMS / Picture Messaging	Yes	n/a	-	n/a	Yes *
Instant Messaging	-	n/a	-	n/a	-
MMS	Yes	n/a	Yes	n/a	Yes
Text Messaging Templates	-	n/a	Yes	n/a	Yes
Music
FM Radio	-	-	Yes	-	Yes
Headphone Jack (3.5mm)	-	-	-	Yes	-
Music Player	-	n/a	Yes	n/a	Yes *
Productivity
Alarm	Yes	n/a	Yes	n/a	Yes
Calculator	Yes	n/a	Yes	n/a	Yes
Calendar	Yes	n/a	Yes	n/a	Yes
To-Do List	-	n/a	Yes	n/a	Yes
Voice Memo	-	n/a	Yes	n/a	Yes
Software
BREW	Yes	n/a	Yes *	n/a	Yes *
Games	Yes	n/a	Yes	n/a	Yes
Java (J2ME)	-	n/a	Yes *	n/a	Yes *
Voice
Headset Jack (2.5 mm)	-	n/a	Yes	n/a	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SCH-A870 / Siren	HTC G1	Nokia 6275i	BlackBerry Pearl 3G 9100 / 9105	Nokia 6255i / 6256i
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SCH-A870 / Siren	HTC G1	Nokia 6275i	BlackBerry Pearl 3G 9100 / 9105	Nokia 6255i / 6256i