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Specifications
	X >	< X >	< X >	< X >	< X

Phone	Palm Treo 600 (CDMA)	Apple iPhone	HTC Desire 555	Ericsson R520	HTC Merge
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.5" diag. 5 : 3	5" diag. 16 : 9	?	3.8" diag. 5 : 3
Display Resolution & Type	160 x 160 pixels LCD (Color)	320 x 480 pixels (~165 ppi) LCD (TFT/TFD)	720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)	?	480 x 800 pixels (~246 ppi) LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	?	60 Hz
Battery	?	?	2,200 mAh	?	1,400 mAh
Processor	?	?	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	?	800 MHz Qualcomm S2 MSM7630
RAM	?	?	2 GB	?	?
Storage	? raw hardware	8 GB *	16 GB	? raw hardware	? raw hardware
Main Camera	Yes	2 megapixel	8 megapixel	-	5 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	720p HD	-	720p HD
Front Camera	-	-	5 megapixel	-	-
Weight	6.2 oz (176g)	4.8 oz (136g)	4.93 oz (140g)	4.23 oz (120g)	6.98 oz (198g)
Dimensions	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	4.5" x 2.4" x 0.46" (114 x 61 x 11.7 mm)	5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm)	5.12" x 1.97" x 0.63" (130 x 50 x 16 mm)	4.74" x 2.43" x 0.59" (120 x 62 x 15 mm)
Form Factor	Slab	Slab	Slab	Slab	Slide
Platform / OS	Palm OS	iOS	Android	(proprietary)	Android
Network Bands	CDMA: 850, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900	GSM: 900, 1800, 1900	WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900
Data Technology	1xRTT	EDGE	LTE (Cat 4)	GPRS	EVDO rA
Features
Flashlight	-	-	Yes	-	Yes
GPS / Location	n/a	n/a	n/a	-	n/a
Accessibility
Hearing Aid Compatible	-	-	Yes *	-	Yes
Multiple Languages	n/a	n/a	n/a	Yes	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	-	-
Alerts
Ringer Profiles	-	-	-	Yes	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	Yes	-
Mobile Hotspot	n/a	n/a	n/a	-	n/a
USB	Yes	-	Yes Micro-USB	-	Yes
Wi-Fi	-	Yes 802.11 b,g	Yes 4 (802.11 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	Yes	n/a
Customization
Custom Graphics	n/a	n/a	n/a	-	n/a
Custom Ringtones	n/a	n/a	n/a	Yes	n/a
Real-Music Ringers	n/a	n/a	n/a	-	n/a
Data & Network
Data Tethering	n/a	n/a	n/a	Yes	n/a
WAP / Web Browser	n/a	n/a	n/a	Yes	n/a
Input
Predictive Text Entry	n/a	n/a	n/a	Yes	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	Yes
Touch Screen	Yes	Yes	Yes	-	Yes
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
Text Messaging Templates	n/a	n/a	n/a	Yes	n/a
Music
FM Radio	-	-	Yes	-	Yes
Headphone Jack (3.5mm)	-	Yes	Yes	-	Yes
Music Player	n/a	n/a	n/a	-	n/a
Photo & Video
DLNA	-	-	Yes	-	-
Miracast	-	-	Yes	-	-
TV Output	-	Yes *	-	-	-
Productivity
Alarm	n/a	n/a	n/a	Yes	n/a
Calculator	n/a	n/a	n/a	Yes	n/a
Calendar	n/a	n/a	n/a	Yes	n/a
To-Do List	n/a	n/a	n/a	-	n/a
Voice Memo	n/a	n/a	n/a	Yes	n/a
Software
Games	n/a	n/a	n/a	Yes	n/a
Voice
HD Voice	-	-	Yes	-	-
Headset Jack (2.5 mm)	n/a	n/a	n/a	-	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Palm Treo 600 (CDMA)	Apple iPhone	HTC Desire 555	Ericsson R520	HTC Merge
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 600 (CDMA)	Apple iPhone	HTC Desire 555	Ericsson R520	HTC Merge