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Phone	Samsung SGH-A157	HTC Dash / S620 / S621 (Excalibur)	HTC Desire 520	Samsung Stratosphere / Galaxy Metrix 4G	Samsung SCH-A690
Current U.S. Carriers	(none)	(none)	(none)	(none)	(none)
Global Availability	Released	Released	Released	Released	Not yet released
Display Size	1.8" diag. 4 : 3	?	4.5" diag. 16 : 9	4" diag. 5 : 3	?
Display Resolution & Type	128 x 160 pixels (~116 ppi) LCD (TFT/TFD)	320 x 240 pixels LCD (TFT/TFD)	480 x 854 pixels (~218 ppi) LCD (TFT/TFD)	480 x 800 pixels (~233 ppi) AMOLED	128 x 160 pixels LCD (STN)
Display Refresh	?	?	60 Hz	60 Hz	?
Battery	800 mAh	960 mAh	2,000 mAh	?	1,300 mAh
Processor	?	200 MHz OMAP 850	1.1 GHz Qualcomm Snapdragon 210 (MSM8909)	1 GHz Samsung Cortex A8 Hummingbird	?
RAM	?	?	1 GB	?	?
Storage	256 MB	? raw hardware	8 GB	? raw hardware	? raw hardware
Main Camera	-	1 megapixel	8 megapixel	5 megapixel	-
Wide Camera	-	-	-	-	-
Tele Camera	-	-	-	-	-
Video Capture	-	?	720p HD	WVGA / 480p	-
Front Camera	-	-	2 megapixel	1 megapixel	-
Weight	2.99 oz (85g)	4.23 oz (120g)	4.9 oz (139g)	5.8 oz (164g)	4.3 oz (122g)
Dimensions	3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm)	4.39" x 2.46" x 0.51" (112 x 62 x 13 mm)	5.5" x 2.71" x 0.36" (140 x 69 x 9 mm)	4.96" x 2.54" x 0.55" (126 x 65 x 14 mm)	3.64" x 1.93" x 1.02" (92 x 49 x 25.9 mm)
Form Factor	Clamshell	Slab	Slab	Slide	Clamshell
Platform / OS	(proprietary)	Windows Mobile Standard	Android	Android	(proprietary)
Network Bands	WCDMA: 2, 5 GSM: 850, 900, 1800, 1900	GSM: 850, 900, 1800, 1900	4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900	4G LTE: 13 CDMA: 850, 1900 *	CDMA: 850, 1900
Data Technology	?	EDGE	LTE (Cat 3)	LTE (Cat 3)	1xRTT
Features
GPS / Location	Yes	n/a	n/a	n/a	Yes
Accessibility
Adjustable Text Size	Yes	n/a	n/a	n/a	-
Hearing Aid Compatible	Yes M4 (very compatible)	-	Yes M4, T3 (mostly tele-coil compatible)	Yes M4 (very compatible)	-
Multiple Languages	Yes	n/a	n/a	n/a	Yes
TTY/TDD (Digital)	Yes	Yes	Yes	Yes	Yes
Alerts
Extra Display	-	-	-	-	Yes
Ringer Profiles	Yes	Yes	-	-	-
Connectivity
Bluetooth	-	Yes	Yes	Yes	-
Mobile Hotspot	-	n/a	n/a	n/a	-
USB	Yes Micro-USB	Yes	Yes Micro-USB	Yes	-
Wi-Fi	-	Yes 802.11 b,g	Yes 4 (802.11 b,g,n)	Yes 4 (802.11 a,b,g,n)	-
Contacts
Picture ID	Yes	n/a	n/a	n/a	-
Ringer ID	Yes	n/a	n/a	n/a	-
Voice Dialing	-	n/a	n/a	n/a	Yes
Customization
Custom Graphics	Yes	n/a	n/a	n/a	-
Custom Ringtones	Yes	n/a	n/a	n/a	Yes
Real-Music Ringers	Yes	n/a	n/a	n/a	-
Data & Network
Data Tethering	-	n/a	n/a	n/a	Yes
External Antenna Jack	-	n/a	n/a	n/a	-
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
Text Keyboard, Hardware	-	Yes	-	Yes	-
Touch Screen	-	-	Yes Capacitive	Yes Capacitive	-
Memory
Memory Card Slot	-	Yes	Yes	Yes	-
Messaging
Email Client	-	n/a	n/a	n/a	-
Instant Messaging	-	n/a	n/a	n/a	-
MMS	Yes	n/a	n/a	n/a	-
Text Messaging Templates	Yes	n/a	n/a	n/a	Yes
Music
FM Radio	-	-	Yes	-	-
Headphone Jack (3.5mm)	-	-	Yes	Yes	-
Music Player	-	n/a	n/a	n/a	-
Photo & Video
DLNA	-	-	Yes	Yes	-
Productivity
Alarm	Yes	n/a	n/a	n/a	Yes
Calculator	Yes	n/a	n/a	n/a	Yes
Calendar	Yes	n/a	n/a	n/a	Yes
To-Do List	Yes	n/a	n/a	n/a	Yes
Voice Memo	Yes	n/a	n/a	n/a	Yes
Software
BREW	-	n/a	n/a	n/a	Yes
Games	-	n/a	n/a	n/a	Yes
Java (J2ME)	-	n/a	n/a	n/a	-
Voice
Call Screening	-	-	-	-	Yes
Headset Jack (2.5 mm)	-	n/a	n/a	n/a	Yes
Push-To-Talk	-	-	-	-	Yes
Speaker Phone	Yes	Yes	Yes	Yes	Yes
	* Some versions only
	Samsung SGH-A157	HTC Dash / S620 / S621 (Excalibur)	HTC Desire 520	Samsung Stratosphere / Galaxy Metrix 4G	Samsung SCH-A690
	X >	< X >	< X >	< X >	< X

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


Phone	Samsung SGH-A157	HTC Dash / S620 / S621 (Excalibur)	HTC Desire 520	Samsung Stratosphere / Galaxy Metrix 4G	Samsung SCH-A690