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Phone	ZTE Speed	Sony Ericsson T61c	Sony Ericsson Z550a	Ericsson R520	HTC G1
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	4.5" diag. 16 : 9	?	1.9" diag. 4 : 3	?	3.2" diag. 5 : 3
Display Resolution & Type	540 x 960 pixels (~245 ppi) LCD (TFT/TFD)	?	176 x 220 pixels (~148 ppi) LCD (TFT/TFD)	?	320 x 480 pixels (~182 ppi) LCD (TFT/TFD)
Display Refresh	60 Hz	?	?	?	60 Hz
Battery	2,000 mAh	?	?	?	1,150 mAh
Processor	1.2 GHz Qualcomm Snapdragon 410 MSM8916	?	?	?	528 MHz Qualcomm MSM7201A
RAM	1 GB	?	?	?	?
Storage	8 GB	? raw hardware	? raw hardware	? raw hardware	? raw hardware
Main Camera	5 megapixel	-	1 megapixel	-	3 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	720p HD	-	?	-	?
Front Camera	2 megapixel	-	-	-	-
Weight	4.8 oz (136g)	4.4 oz (125g)	3.26 oz (92g)	4.23 oz (120g)	5.6 oz (159g)
Dimensions	5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm)	4.8" x 2.13" x 0.92" (122 x 54 x 23.4 mm)	3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm)	5.12" x 1.97" x 0.63" (130 x 50 x 16 mm)	4.62" x 2.19" x 0.67" (117 x 56 x 17 mm)
Form Factor	Slab	Slab	Clamshell	Slab	Slide
Platform / OS	Android	(proprietary)	(proprietary)	(proprietary)	Android
Network Bands	4G LTE: 25, 26, 41 CDMA: 800, 850, 1900	CDMA: 850, 1900 AMPS: 850	GSM: 850, 900, 1800, 1900 *	GSM: 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900
Data Technology	LTE (Cat 3)	1xRTT	GPRS	GPRS	HSPA 7.2
Features
GPS / Location	n/a	Yes	-	-	n/a
Accessibility
Adjustable Text Size	n/a	-	-	-	n/a
Hearing Aid Compatible	Yes	-	-	-	-
Multiple Languages	n/a	Yes	Yes	Yes	n/a
TTY/TDD (Digital)	Yes	-	Yes	-	-
Alerts
Extra Display	-	-	Yes	-	-
Ringer Profiles	-	Yes	Yes	Yes	-
Connectivity
Bluetooth	Yes Classic Audio	Yes	Yes	Yes HSP, Sync, OPP, DUN	Yes Classic Audio
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	n/a	-	-	-	n/a
USB	Yes Micro-USB	-	Yes	-	Yes Mini-USB
Wi-Fi	Yes 4 (802.11 b,g,n)	-	-	-	Yes 802.11 b,g
Contacts
Picture ID	n/a	-	Yes	-	n/a
Ringer ID	n/a	-	Yes	-	n/a
Voice Dialing	n/a	Yes	Yes	Yes	n/a
Customization
Changeable Body Plates	-	Yes	-	-	-
Custom Graphics	n/a	Yes	Yes	-	n/a
Custom Ringtones	n/a	Yes	Yes	Yes	n/a
Real-Music Ringers	n/a	-	Yes	-	n/a
Data & Network
Data Tethering	n/a	Yes	Yes	Yes	n/a
WAP / Web Browser	n/a	Yes	Yes	Yes	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	-	-	-	Yes
Touch Screen	Yes	-	-	-	Yes
Memory
Memory Card Slot	Yes	-	Yes	-	Yes
Messaging
Email Client	n/a	-	Yes	-	n/a
EMS / Picture Messaging	n/a	Yes	-	-	n/a
Instant Messaging	n/a	-	-	-	n/a
MMS	n/a	-	Yes	-	n/a
Text Messaging Templates	n/a	Yes	Yes	Yes	n/a
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	Yes	-	-	-	-
Music Player	n/a	-	Yes	-	n/a
Productivity
Alarm	n/a	Yes	Yes	Yes	n/a
Calculator	n/a	Yes	Yes	Yes	n/a
Calendar	n/a	Yes	Yes	Yes	n/a
To-Do List	n/a	-	Yes	-	n/a
Voice Memo	n/a	Yes	Yes	Yes	n/a
Software
Games	n/a	Yes	Yes	Yes	n/a
Java (J2ME)	n/a	-	Yes	-	n/a
Voice
HD Voice	Yes	-	-	-	-
Headset Jack (2.5 mm)	n/a	Yes	-	-	n/a
Push-To-Talk	-	-	Yes *	-	-
Speaker Phone	Yes	-	Yes	Yes	Yes
	* Some versions only
	ZTE Speed	Sony Ericsson T61c	Sony Ericsson Z550a	Ericsson R520	HTC G1
	X >	< X >	< X >	< X >	< X

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


Phone	ZTE Speed	Sony Ericsson T61c	Sony Ericsson Z550a	Ericsson R520	HTC G1