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Phone	Samsung MM-A900 / SPH-A900 / Ace	Palm Treo 650 (CDMA)	Nokia Lumia 810	Samsung Sidekick 4G	ZTE Blade Z Max
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	4.3" diag. 5 : 3	3.5" diag. 5 : 3	6" diag. 16 : 9
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	320 x 320 pixels LCD (TFT/TFD)	480 x 800 pixels (~217 ppi) AMOLED	480 x 800 pixels (~267 ppi) LCD (TFT/TFD)	1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD)
Display Refresh	?	?	?	60 Hz	60 Hz
Battery	?	?	1,800 mAh	?	4,080 mAh
Processor	?	312 MHz Intel XScale PXA270	1.5 GHz Qualcomm Snapdragon	1 GHz Samsung Hummingbird Cortex A8	1.4 GHz Qualcomm Snapdragon 435 (MSM8940)
RAM	?	?	1 GB	?	2 GB
Storage	? raw hardware	? raw hardware	8 GB	? raw hardware	32 GB
Main Camera	1 megapixel	Yes	8 megapixel	3 megapixel	16 megapixel
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	?	QVGA (320 x 240)	1080p HD	WVGA / 480p	1080p HD
Front Camera	-	-	1 megapixel	Yes	8 megapixel
Weight	3.9 oz (111g)	6.3 oz (179g)	5.11 oz (145g)	5.7 oz (162g)	6.58 oz (186g)
Dimensions	3.86" x 2.01" x 0.57" (98 x 51 x 14.5 mm)	4.4" x 2.3" x 0.9" (112 x 58 x 22.9 mm)	5" x 2.69" x 0.44" (127 x 68 x 11.2 mm)	5" x 2.42" x 0.6" (127 x 61 x 15.2 mm)	6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm)
Form Factor	Clamshell	Slab	Slab	Slide	Slab
Platform / OS	(proprietary)	Palm OS	Windows	Android	Android
Network Bands	CDMA: 850, 1900	CDMA: 850, 1900	WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900	WCDMA: 1, 4 GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900
Data Technology	EVDO r0	1xRTT	HSPA+ 42	HSPA+ 21	LTE (Cat 6)
Features
Fingerprint Reader	-	-	-	-	Yes stand-alone
Flashlight	-	-	-	-	Yes
GPS / Location	Yes	n/a	n/a	n/a	n/a
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	n/a
Hearing Aid Compatible	-	-	Yes M3, T4 (very tele-coil compatible)	Yes M3, T3 (mostly tele-coil compatible)	Yes M4, T3 (mostly tele-coil compatible)
Multiple Languages	Yes	n/a	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	-	Yes	Yes	Yes
Alerts
Extra Display	Yes	-	-	-	-
Connectivity
Bluetooth	Yes	Yes	Yes	Yes	Yes
Infrared (IR)	-	Yes	-	-	-
Mobile Hotspot	-	n/a	n/a	n/a	n/a
NFC	-	-	Yes	-	-
USB	Yes	-	Yes Micro-USB	Yes Micro-USB	Yes USB Type C
Wi-Fi	-	-	Yes 4 (802.11 a,b,g,n)	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)
Contacts
Picture ID	Yes	n/a	n/a	n/a	n/a
Ringer ID	Yes	n/a	n/a	n/a	n/a
Voice Dialing	Yes	n/a	n/a	n/a	n/a
Customization
Custom Graphics	Yes	n/a	n/a	n/a	n/a
Custom Ringtones	Yes	n/a	n/a	n/a	n/a
Real-Music Ringers	-	n/a	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	n/a
WAP / Web Browser	Yes	n/a	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Text Keyboard, Hardware	-	Yes	-	Yes	-
Touch Screen	-	Yes	Yes Capacitive	Yes	Yes Capacitive
Memory
Memory Card Slot	-	Yes	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	Yes	n/a	n/a	n/a	n/a
Music
FM Radio	-	-	-	-	Yes
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	Yes	n/a	n/a	n/a	n/a
Photo & Video
DLNA	-	-	-	Yes	-
Power
Fast Charging	-	-	-	-	Yes
Wireless Charging	-	-	Yes	-	-
Productivity
Alarm	Yes	n/a	n/a	n/a	n/a
Calculator	Yes	n/a	n/a	n/a	n/a
Calendar	Yes	n/a	n/a	n/a	n/a
To-Do List	Yes	n/a	n/a	n/a	n/a
Voice Memo	Yes	n/a	n/a	n/a	n/a
Software
Games	Yes	n/a	n/a	n/a	n/a
Java (J2ME)	Yes	n/a	n/a	n/a	n/a
Voice
HD Voice	-	-	-	-	Yes
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	n/a
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	Samsung MM-A900 / SPH-A900 / Ace	Palm Treo 650 (CDMA)	Nokia Lumia 810	Samsung Sidekick 4G	ZTE Blade Z Max
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung MM-A900 / SPH-A900 / Ace	Palm Treo 650 (CDMA)	Nokia Lumia 810	Samsung Sidekick 4G	ZTE Blade Z Max