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Specifications
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Phone	Palm Treo 600 (CDMA)	Samsung SCH-R211	ZTE Agent	Nokia Lumia 521 / 520	AT&T Vista
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	1.5" diag. 1 : 1	2.4" diag. 4 : 3	4" diag. 5 : 3	5.5" diag. 18 : 9
Display Resolution & Type	160 x 160 pixels LCD (Color)	128 x 128 pixels (~121 ppi) LCD (STN)	240 x 320 pixels (~167 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) LCD (TFT/TFD)	720 x 1440 pixels (~293 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	?	60 Hz
Battery	?	800 mAh	900 mAh	1,430 mAh	2,450 mAh
Processor	?	?	?	1 GHz Qualcomm Snapdragon S4 MSM8270	2 GHz MediaTek Helio A22 (MT6761V)
RAM	?	?	?	512 MB	3 GB
Storage	? raw hardware	? raw hardware	? raw hardware	8 GB	32 GB
Main Camera	Yes	-	1 megapixel	5 megapixel	8 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	-	?	720p HD	1080p HD
Front Camera	-	-	-	-	5 megapixel
Weight	6.2 oz (176g)	2.73 oz (77g)	3.53 oz (100g)	4.39 oz (124g)	5.51 oz (156g)
Dimensions	4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm)	4.07" x 1.77" x 0.59" (103 x 45 x 15 mm)	4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm)	4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)	5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm)
Form Factor	Slab	Slab	Slab	Slab	Slab
Platform / OS	Palm OS	(proprietary)	(proprietary)	Windows	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1700, 1900	CDMA: 850, 1700, 1900	WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8
Data Technology	1xRTT	1xRTT	1xRTT	HSPA+ 21	LTE (Cat 4)
Features
Flashlight	-	-	-	-	Yes
GPS / Location	n/a	Yes	Yes	n/a	n/a
Accessibility
Hearing Aid Compatible	-	Yes M3 (mostly compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M3, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)
Multiple Languages	n/a	Yes	Yes	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Connectivity
Bluetooth	-	-	Yes	Yes	Yes
Infrared (IR)	Yes	-	-	-	-
Mobile Hotspot	n/a	-	-	n/a	n/a
USB	Yes	-	Yes Micro-USB	Yes	Yes USB Type C
Wi-Fi	-	-	-	Yes	Yes
Contacts
Picture ID	n/a	Yes	-	n/a	n/a
Ringer ID	n/a	Yes	Yes	n/a	n/a
Voice Dialing	n/a	-	-	n/a	n/a
Customization
Custom Graphics	n/a	Yes	Yes	n/a	n/a
Custom Ringtones	n/a	Yes	Yes	n/a	n/a
Real-Music Ringers	n/a	-	Yes	n/a	n/a
Data & Network
Data Tethering	n/a	-	-	n/a	n/a
WAP / Web Browser	n/a	Yes	Yes	n/a	n/a
Input
Predictive Text Entry	n/a	Yes	Yes	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	Yes	-	-	-	-
Touch Screen	Yes	-	-	Yes Capacitive	Yes Capacitive
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	n/a	-	Yes	n/a	n/a
Instant Messaging	n/a	-	Yes	n/a	n/a
MMS	n/a	-	Yes	n/a	n/a
Text Messaging Templates	n/a	Yes	Yes	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	n/a	-	Yes	n/a	n/a
Productivity
Alarm	n/a	Yes	Yes	n/a	n/a
Calculator	n/a	Yes	Yes	n/a	n/a
Calendar	n/a	Yes	Yes	n/a	n/a
To-Do List	n/a	-	-	n/a	n/a
Voice Memo	n/a	-	Yes	n/a	n/a
Software
BREW	n/a	Yes	Yes	n/a	n/a
Games	n/a	Yes	Yes	n/a	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	n/a	Yes	-	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Palm Treo 600 (CDMA)	Samsung SCH-R211	ZTE Agent	Nokia Lumia 521 / 520	AT&T Vista
	X >	< X >	< X >	< X >	< X

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


Phone	Palm Treo 600 (CDMA)	Samsung SCH-R211	ZTE Agent	Nokia Lumia 521 / 520	AT&T Vista