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| Phone | Samsung M520 | LG Spectrum | Samsung Heat | 
| Current U.S. Carriers | (none) | (none) | (none) | 
| Global Availability | Released | Released | Released | 
| Specifications | |||
|---|---|---|---|
| Display Size | 
			2.1" diag. 4 : 3  | 
		
		
			4.5" diag. 16 : 9  | 
		
		? | 
| Display Resolution & Type | 
			176 x 220 pixels (~134 ppi) LCD (TFT/TFD)  | 
		
		
			720 x 1280 pixels (~326 ppi) LCD (TFT/TFD)  | 
		
		
			240 x 320 pixels LCD (TFT/TFD)  | 
	
| Display Refresh | ? | 60 Hz | ? | 
| Battery | ? | 1,830 mAh | 800 mAh | 
| Processor | ? | 1.5 GHz Qualcomm Snapdragon S3 | ? | 
| RAM | ? | 1 GB | ? | 
| Storage | ? raw hardware | 4 GB | ? raw hardware | 
| Main Camera | 1 megapixel | 8 megapixel | 1 megapixel | 
| Wide Camera | - | - | - | 
| Tele Camera | - | - | - | 
| Video Capture | ? | 1080p HD | ? | 
| Front Camera | - | 1 megapixel | - | 
| Weight | 
			2.75 oz (78g)  | 
		
		
			4.99 oz (141g)  | 
		
		
			3.17 oz (90g)  | 
	
| Dimensions | 
			4.01" x 2.04" x 0.5" (102 x 52 x 12.7 mm)  | 
		
		
			5.33" x 2.71" x 0.42" (135 x 69 x 10.7 mm)  | 
		
		
			3.6" x 1.8" x 0.6" (91 x 46 x 15.2 mm)  | 
	
| Form Factor | Slide | Slab | Slide | 
| Platform / OS | (proprietary) | Android | (proprietary) | 
| Network Bands | 
			 CDMA: 850, 1900  | 
		
		
			 CDMA: 850, 1900  | 
	|
| Data Technology | EVDO r0 | LTE (Cat 3) | EVDO r0 | 
| Features | |||
| GPS / Location | Yes | n/a | Yes | 
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes | 
| Hearing Aid Compatible | Yes | Yes | Yes | 
| Multiple Languages | Yes | n/a | Yes | 
| TTY/TDD (Digital) | Yes | Yes | Yes | 
| Connectivity | |||
| Bluetooth | 
			Yes Classic Audio  | 
		
		
			Yes Classic Audio  | 
		
		
			Yes Classic Audio  | 
	
| Mobile Hotspot | - | n/a | - | 
| USB | Yes | 
			Yes Micro-USB  | 
		
		Yes | 
| Wi-Fi | - | 
			Yes 4 (802.11 b,g,n)  | 
		
		- | 
| Contacts | |||
| Picture ID | Yes | n/a | Yes | 
| Ringer ID | Yes | n/a | Yes | 
| Voice Dialing | Yes | n/a | - | 
| Customization | |||
| Custom Graphics | Yes | n/a | Yes | 
| Custom Ringtones | Yes | n/a | Yes | 
| Real-Music Ringers | - | n/a | Yes | 
| Data & Network | |||
| Data Tethering | Yes | n/a | - | 
| WAP / Web Browser | Yes | n/a | Yes | 
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes | 
| Side Keys | Yes | Yes | Yes | 
| Touch Screen | - | Yes | - | 
| Memory | |||
| Memory Card Slot | Yes | Yes | - | 
| Messaging | |||
| Email Client | - | n/a | - | 
| Instant Messaging | - | n/a | - | 
| MMS | - | n/a | Yes | 
| Text Messaging Templates | Yes | n/a | Yes | 
| Music | |||
| Headphone Jack (3.5mm) | - | Yes | - | 
| Music Player | Yes | n/a | Yes | 
| Photo & Video | |||
| DLNA | - | Yes | - | 
| TV Output | - | Yes | - | 
| Productivity | |||
| Alarm | Yes | n/a | Yes | 
| Calculator | Yes | n/a | Yes | 
| Calendar | Yes | n/a | Yes | 
| To-Do List | Yes | n/a | Yes | 
| Voice Memo | Yes | n/a | Yes | 
| Software | |||
| Games | Yes | n/a | Yes | 
| Java (J2ME) | Yes | n/a | - | 
| Voice | |||
| Speaker Phone | Yes | Yes | Yes | 
| Samsung M520 | LG Spectrum | Samsung Heat | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung M520 | LG Spectrum | Samsung Heat | 










