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| Phone | Samsung Heat | Sharp Sidekick LX 2009 | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | Sony Ericsson Z500 | LG K8 (2017) | 
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) | 
| Global Availability | Released | Released | Released | Released | Released | 
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | 
			3.2" diag. 16 : 9  | 
		
		
			5" diag. 16 : 9  | 
		
		? | 
			5" diag. 16 : 9  | 
	
| Display Resolution & Type | 
			240 x 320 pixels LCD (TFT/TFD)  | 
		
		
			854 x 480 pixels (~306 ppi) LCD (TFT/TFD)  | 
		
		
			720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)  | 
		
		
			128 x 160 pixels LCD (STN)  | 
		
		
			720 x 1280 pixels (~294 ppi) LCD (TFT/TFD)  | 
	
| Display Refresh | ? | ? | 60 Hz | ? | 60 Hz | 
| Battery | 800 mAh | 1,250 mAh | 2,500 mAh | ? | 2,500 mAh | 
| Processor | ? | ? | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | ? | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) | 
| RAM | ? | ? | 2 GB | ? | 1.5 GB | 
| Storage | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware | 16 GB | 
| Main Camera | 1 megapixel | 3 megapixel | 8 megapixel | Yes | 8 megapixel | 
| Wide Camera | - | - | - | - | - | 
| Tele Camera | - | - | - | - | - | 
| Video Capture | ? | QVGA (320 x 240) | 1080p HD | ? | 1080p HD | 
| Front Camera | - | - | 5 megapixel | - | 5 megapixel | 
| Weight | 
			3.17 oz (90g)  | 
		
		
			5.78 oz (164g)  | 
		
		
			4.94 oz (140g)  | 
		
		
			3.88 oz (110g)  | 
		
		
			5 oz (142g)  | 
	
| Dimensions | 
			3.6" x 1.8" x 0.6" (91 x 46 x 15.2 mm)  | 
		
		
			5.12" x 2.36" x 0.63" (130 x 60 x 16 mm)  | 
		
		
			5.7" x 2.84" x 0.32" (145 x 72 x 8.1 mm)  | 
		
		
			3.66" x 1.93" x 0.94" (93 x 49 x 23.9 mm)  | 
		
		
			5.7" x 2.83" x 0.31" (145 x 72 x 7.9 mm)  | 
	
| Form Factor | Slide | Swivel | Slab | Clamshell | Slab | 
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) | Android | 
| Network Bands | 
			 CDMA: 850, 1900  | 
		
		
			 WCDMA: 1, 4 GSM: 850, 900, 1800, 1900  | 
		
		
			 GSM: 850, 1800, 1900  | 
		
		
			 4G LTE: 2, 4, 5, 12, 25 CDMA: 850, 1900  | 
	|
| Data Technology | EVDO r0 | HSPA 7.2 | LTE (Cat 4) | EDGE | LTE (Cat 4) | 
| Features | |||||
| Flashlight | - | - | Yes | - | Yes | 
| GPS / Location | Yes | Yes | n/a | - | n/a | 
| Accessibility | |||||
| Adjustable Text Size | Yes | Yes | n/a | - | n/a | 
| Hearing Aid Compatible | Yes | Yes | Yes | - | Yes | 
| Multiple Languages | Yes | Yes | n/a | Yes | n/a | 
| TTY/TDD (Digital) | Yes | - | Yes | Yes | Yes | 
| Alerts | |||||
| Extra Display | - | - | - | Yes | - | 
| Ringer Profiles | - | Yes | - | Yes | - | 
| Connectivity | |||||
| Bluetooth | 
			Yes Classic Audio  | 
		
		
			Yes Classic Audio  | 
		
		
			Yes Classic Audio  | 
		
		- | 
			Yes Classic Audio  | 
	
| USB | Yes | Yes | 
			Yes Micro-USB  | 
		
		Yes | 
			Yes Micro-USB  | 
	
| Wi-Fi | - | - | 
			Yes 4 (802.11 b,g,n)  | 
		
		- | 
			Yes 4 (802.11 b,g,n)  | 
	
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | Yes | n/a | 
| Ringer ID | Yes | Yes | n/a | Yes | n/a | 
| Voice Dialing | - | - | n/a | Yes | n/a | 
| Customization | |||||
| Changeable Body Plates | - | - | - | Yes | - | 
| Custom Graphics | Yes | Yes | n/a | Yes | n/a | 
| Custom Ringtones | Yes | Yes | n/a | Yes | n/a | 
| Real-Music Ringers | Yes | Yes | n/a | - | n/a | 
| Data & Network | |||||
| Data Tethering | - | - | n/a | Yes | n/a | 
| WAP / Web Browser | Yes | Yes | n/a | Yes | n/a | 
| Input | |||||
| Predictive Text Entry | Yes | - | n/a | Yes | n/a | 
| Side Keys | Yes | Yes | Yes | Yes | Yes | 
| Text Keyboard, Hardware | - | Yes | - | - | - | 
| Touch Screen | - | - | Yes | - | Yes | 
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | - | Yes | 
| Messaging | |||||
| Email Client | - | Yes | n/a | Yes | n/a | 
| EMS / Picture Messaging | - | - | n/a | Yes | n/a | 
| Instant Messaging | - | Yes | n/a | Yes | n/a | 
| MMS | Yes | Yes | n/a | Yes | n/a | 
| Text Messaging Templates | Yes | Yes | n/a | Yes | n/a | 
| Music | |||||
| FM Radio | - | - | - | - | Yes | 
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes | 
| Music Player | Yes | Yes | n/a | - | n/a | 
| Productivity | |||||
| Alarm | Yes | Yes | n/a | Yes | n/a | 
| Calculator | Yes | - | n/a | Yes | n/a | 
| Calendar | Yes | Yes | n/a | Yes | n/a | 
| To-Do List | Yes | Yes | n/a | Yes | n/a | 
| Voice Memo | Yes | - | n/a | Yes | n/a | 
| Software | |||||
| Games | Yes | Yes | n/a | Yes | n/a | 
| Java (J2ME) | - | Yes | n/a | Yes | n/a | 
| Voice | |||||
| HD Voice | - | - | Yes | - | - | 
| Push-To-Talk | - | - | - | Yes * | - | 
| Speaker Phone | Yes | Yes | Yes | Yes | Yes | 
| * Some versions only | |||||
| Samsung Heat | Sharp Sidekick LX 2009 | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | Sony Ericsson Z500 | LG K8 (2017) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Heat | Sharp Sidekick LX 2009 | LG K8 (2018) / Zone 4 / Tribute Dynasty / Tribute Empire / K8s | Sony Ericsson Z500 | LG K8 (2017) | 











