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Phone	Kyocera 2135	Apple iPhone 4 (CDMA)	HTC EVO Design 4G / Hero S (CDMA)	AT&T Maestro 3	Sony Ericsson Z520 / Z525
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Released
Display Size	?	3.5" diag. 5 : 3	4" diag. 16 : 9	6.5" diag. 20 : 9	?
Display Resolution & Type	?	640 x 960 pixels (~330 ppi) LCD (TFT/TFD)	540 x 960 pixels (~275 ppi) LCD (TFT/TFD)	720 x 1600 pixels (~270 ppi) LCD (TFT/TFD)	128 x 160 pixels LCD (TFT/TFD)
Display Refresh	?	60 Hz	60 Hz	60 Hz	?
Battery	925 mAh	?	1,520 mAh	3,900 mAh	?
Processor	?	?	1.2 GHz Qualcomm Snapdragon S2 MSM8655	2 GHz MediaTek Helio A22 (MT6761)	?
RAM	?	?	768 MB	3 GB	?
Storage	? raw hardware	8 GB *	4 GB	32 GB	? raw hardware
Main Camera	-	5 megapixel	5 megapixel	13 megapixel	Yes
Wide Camera	-	-	-	5 megapixel	-
Tele Camera	-	-	-	-	-
Video Capture	-	720p HD	720p HD	1080p HD	?
Front Camera	-	Yes	1 megapixel	5 megapixel	-
Weight	4.7 oz (133g)	4.8 oz (136g)	5.22 oz (148g)	6.24 oz (177g)	3.46 oz (98g)
Dimensions	5.07" x 1.89" x 1.02" (129 x 48 x 25.9 mm)	4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm)	4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm)	6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm)	3.27" x 1.81" x 0.94" (83 x 46 x 23.9 mm)
Form Factor	Slab	Slab	Slab	Slab	Clamshell
Platform / OS	(proprietary)	iOS	Android	Android	(proprietary)
Network Bands	CDMA: 850, 1900 AMPS: 850	CDMA: 850, 1900	4G WiMAX: 41 WCDMA: 1, 8 CDMA: 800, 850, 1900 GSM: 850, 1900 *	4G LTE: 2, 4, 5, 12, 14, 30	GSM: 850, 900, 1800, 1900
Data Technology	-	EVDO rA	WiMAX	LTE (Cat 4)	GPRS
Features
Barometer	-	-	-	Yes	-
Fingerprint Reader	-	-	-	Yes stand-alone	-
Flashlight	-	-	Yes	Yes	-
GPS / Location	-	n/a	n/a	n/a	-
Accessibility
Adjustable Text Size	-	n/a	n/a	n/a	-
Hearing Aid Compatible	-	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	Yes M4, T4 (very tele-coil compatible)	-
Multiple Languages	Yes	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	-	-	Yes	-	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	-	-	-	-	Yes
Connectivity
Bluetooth	-	Yes	Yes	Yes	Yes
Infrared (IR)	-	-	-	-	Yes
Mobile Hotspot	-	n/a	n/a	n/a	-
USB	-	Yes	Yes Micro-USB	Yes USB Type C	Yes
Wi-Fi	-	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 b,g,n)	Yes 5 (802.11 a,ac,b,g,n)	-
Contacts
Picture ID	-	n/a	n/a	n/a	Yes
Ringer ID	-	n/a	n/a	n/a	Yes
Voice Dialing	-	n/a	n/a	n/a	Yes
Customization
Changeable Body Plates	Yes	-	-	-	Yes
Custom Graphics	-	n/a	n/a	n/a	Yes
Custom Ringtones	Yes	n/a	n/a	n/a	Yes
Real-Music Ringers	-	n/a	n/a	n/a	Yes
Data & Network
Data Tethering	Yes	n/a	n/a	n/a	Yes
WAP / Web Browser	Yes	n/a	n/a	n/a	Yes
Input
Predictive Text Entry	Yes	n/a	n/a	n/a	Yes
Side Keys	-	Yes	Yes	Yes	Yes
Touch Screen	-	Yes Capacitive	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	-	Yes	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	Yes
EMS / Picture Messaging	-	n/a	n/a	n/a	Yes
Instant Messaging	-	n/a	n/a	n/a	-
MMS	-	n/a	n/a	n/a	Yes
Text Messaging Templates	Yes	n/a	n/a	n/a	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	Yes	Yes	Yes	-
Music Player	-	n/a	n/a	n/a	-
Photo & Video
DLNA	-	-	Yes	-	-
TV Output	-	Yes	-	-	-
Video Calling	-	n/a	n/a	n/a	-
Productivity
Alarm	Yes	n/a	n/a	n/a	Yes
Calculator	Yes	n/a	n/a	n/a	Yes
Calendar	-	n/a	n/a	n/a	Yes
To-Do List	-	n/a	n/a	n/a	Yes
Voice Memo	-	n/a	n/a	n/a	Yes
Software
Games	Yes	n/a	n/a	n/a	Yes
Java (J2ME)	-	n/a	n/a	n/a	Yes
Voice
HD Voice	-	-	-	Yes	-
Headset Jack (2.5 mm)	Yes	n/a	n/a	n/a	-
Push-To-Talk	-	-	-	-	Yes *
Speaker Phone	-	Yes	Yes	Yes	Yes
	* Some versions only
	Kyocera 2135	Apple iPhone 4 (CDMA)	HTC EVO Design 4G / Hero S (CDMA)	AT&T Maestro 3	Sony Ericsson Z520 / Z525
	X >	< X >	< X >	< X >	< X

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


Phone	Kyocera 2135	Apple iPhone 4 (CDMA)	HTC EVO Design 4G / Hero S (CDMA)	AT&T Maestro 3	Sony Ericsson Z520 / Z525