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Phone	Samsung SCH-A990	Samsung SGH-A127	Kyocera Hydro Wave / Hydro Air	Samsung Galaxy S 4 (GSM)	AT&T Maestro 3
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	?	5" diag. 16 : 9	5" diag. 16 : 9	6.5" diag. 20 : 9
Display Resolution & Type	240 x 320 pixels LCD (TFT/TFD)	128 x 160 pixels LCD (STN)	540 x 960 pixels (~220 ppi) LCD (TFT/TFD)	1080 x 1920 pixels (~441 ppi) AMOLED	720 x 1600 pixels (~270 ppi) LCD (TFT/TFD)
Display Refresh	?	?	60 Hz	60 Hz	60 Hz
Battery	1,000 mAh	800 mAh	2,300 mAh	2,600 mAh	3,900 mAh
Processor	?	?	1.2 GHz Qualcomm Snapdragon 410 (MSM8916)	1.9 GHz Qualcomm Snapdragon 600 8064T	2 GHz MediaTek Helio A22 (MT6761)
RAM	?	?	1 GB	2 GB	3 GB
Storage	? raw hardware	? raw hardware	8 GB	16 GB *	32 GB
Main Camera	3 megapixel	Yes	5 megapixel	13 megapixel	13 megapixel
Wide Camera	-	-	-	-	5 megapixel
Tele Camera	-	-	-	-	-
Video Capture	?	-	1080p HD	1080p HD	1080p HD
Front Camera	-	-	2 megapixel	2 megapixel	5 megapixel
Weight	4.4 oz (125g)	2.86 oz (81g)	5.11 oz (145g)	4.59 oz (130g)	6.24 oz (177g)
Dimensions	3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm)	3.39" x 1.67" x 0.76" (86 x 42 x 19.3 mm)	5.66" x 2.85" x 0.42" (144 x 72 x 10.7 mm)	5.38" x 2.75" x 0.31" (137 x 70 x 7.9 mm)	6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm)
Form Factor	Clamshell	Clamshell	Slab	Slab	Slab
Platform / OS	(proprietary)	(proprietary)	Android	Android	Android
Network Bands	CDMA: 850, 1900	GSM: 850, 1900	4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 *	4G LTE: 2, 4, 5, 12, 14, 30
Data Technology	EVDO r0	GPRS	LTE (Cat 4)	LTE (Cat 3)	LTE (Cat 4)
Features
Barometer	-	-	-	-	Yes
Fingerprint Reader	-	-	-	-	Yes stand-alone
Flashlight	Yes	-	Yes	Yes	Yes
GPS / Location	Yes	-	n/a	n/a	n/a
Ruggedized	-	-	Yes	-	-
Water-Resistant	-	-	Yes IPX7 (snorkeling)	-	-
Accessibility
Adjustable Text Size	-	-	n/a	n/a	n/a
Hearing Aid Compatible	Yes	-	Yes	Yes	Yes
Multiple Languages	Yes	Yes	n/a	n/a	n/a
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	-
Alerts
Extra Display	Yes	Yes	-	-	-
Connectivity
Bluetooth	Yes Classic Audio	-	Yes Classic Audio	Yes Classic Audio	Yes Classic Audio
Infrared (IR)	-	-	-	Yes	-
Mobile Hotspot	-	-	n/a	n/a	n/a
NFC	-	-	-	Yes	-
USB	Yes	-	Yes Micro-USB	Yes	Yes USB Type C
Wi-Fi	-	-	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)	Yes 5 (802.11 a,ac,b,g,n)
Contacts
Picture ID	Yes	-	n/a	n/a	n/a
Ringer ID	Yes	Yes	n/a	n/a	n/a
Voice Dialing	Yes	-	n/a	n/a	n/a
Customization
Custom Graphics	Yes	Yes	n/a	n/a	n/a
Custom Ringtones	Yes	Yes	n/a	n/a	n/a
Real-Music Ringers	Yes	-	n/a	n/a	n/a
Data & Network
Data Tethering	Yes	-	n/a	n/a	n/a
WAP / Web Browser	Yes	Yes	n/a	n/a	n/a
Input
Predictive Text Entry	Yes	Yes	n/a	n/a	n/a
Side Keys	Yes	Yes	Yes	Yes	Yes
Touch Screen	-	-	Yes	Yes	Yes
Memory
Memory Card Slot	Yes	-	Yes	Yes	Yes
Messaging
Email Client	-	-	n/a	n/a	n/a
EMS / Picture Messaging	Yes	-	n/a	n/a	n/a
Instant Messaging	-	-	n/a	n/a	n/a
MMS	Yes	Yes	n/a	n/a	n/a
Text Messaging Templates	Yes	Yes	n/a	n/a	n/a
Music
Headphone Jack (3.5mm)	-	-	Yes	Yes	Yes
Music Player	Yes	-	n/a	n/a	n/a
Stereo Speakers	Yes	-	-	-	-
Photo & Video
DLNA	-	-	-	Yes	-
Miracast	-	-	-	Yes	-
TV Output	Yes	-	-	Yes	-
Power
Fast Charging	-	-	Yes *	-	-
Productivity
Alarm	Yes	Yes	n/a	n/a	n/a
Calculator	Yes	Yes	n/a	n/a	n/a
Calendar	Yes	Yes	n/a	n/a	n/a
To-Do List	-	Yes	n/a	n/a	n/a
Voice Memo	Yes	Yes	n/a	n/a	n/a
Software
BREW	Yes	-	n/a	n/a	n/a
Games	Yes	Yes	n/a	n/a	n/a
Java (J2ME)	-	Yes	n/a	n/a	n/a
Voice
HD Voice	-	-	Yes *	-	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SCH-A990	Samsung SGH-A127	Kyocera Hydro Wave / Hydro Air	Samsung Galaxy S 4 (GSM)	AT&T Maestro 3
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SCH-A990	Samsung SGH-A127	Kyocera Hydro Wave / Hydro Air	Samsung Galaxy S 4 (GSM)	AT&T Maestro 3