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| Phone | Nokia Lumia 521 / 520 | Alcatel Go Flip / MyFlip | Sony Ericsson Z550a | Nokia E7-00 | Sony Ericsson Z500 | 
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) | 
| Global Availability | Released | Released | Released | Released | Released | 
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | 
			4" diag. 5 : 3  | 
		
		
			2.8" diag. 4 : 3  | 
		
		
			1.9" diag. 4 : 3  | 
		
		
			4" diag. 16 : 9  | 
		
		? | 
| Display Resolution & Type | 
			480 x 800 pixels (~233 ppi) LCD (TFT/TFD)  | 
		
		
			240 x 320 pixels (~143 ppi) LCD (TFT/TFD)  | 
		
		
			176 x 220 pixels (~148 ppi) LCD (TFT/TFD)  | 
		
		
			360 x 640 pixels (~184 ppi) AMOLED  | 
		
		
			128 x 160 pixels LCD (STN)  | 
	
| Display Refresh | ? | ? | ? | ? | ? | 
| Battery | 1,430 mAh | 1,350 mAh | ? | 1,200 mAh | ? | 
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | 680 MHz ARM 11 | ? | 
| RAM | 512 MB | 512 MB | ? | ? | ? | 
| Storage | 8 GB | 4 GB | ? raw hardware | 16 GB | ? raw hardware | 
| Main Camera | 5 megapixel | 2 megapixel | 1 megapixel | 8 megapixel | Yes | 
| Wide Camera | - | - | - | - | - | 
| Tele Camera | - | - | - | - | - | 
| Video Capture | 720p HD | 720p HD | ? | 720p HD | ? | 
| Front Camera | - | - | - | Yes | - | 
| Weight | 
			4.39 oz (124g)  | 
		
		
			4.1 oz (116g)  | 
		
		
			3.26 oz (92g)  | 
		
		
			6.21 oz (176g)  | 
		
		
			3.88 oz (110g)  | 
	
| Dimensions | 
			4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm)  | 
		
		
			4.13" x 2.08" x 0.74" (105 x 53 x 18.7 mm)  | 
		
		
			3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm)  | 
		
		
			4.87" x 2.46" x 0.54" (124 x 62 x 13.6 mm)  | 
		
		
			3.66" x 1.93" x 0.94" (93 x 49 x 23.9 mm)  | 
	
| Form Factor | Slab | Clamshell | Clamshell | Slide | Clamshell | 
| Platform / OS | Windows | (proprietary) | (proprietary) | Symbian^3 | (proprietary) | 
| Network Bands | 
			 GSM: 850, 900, 1800, 1900  | 
		
		
			 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900  | 
		
		
			 GSM: 850, 1800, 1900  | 
	||
| Data Technology | HSPA+ 21 | LTE (Cat 4) | GPRS | HSPA 10.1 | EDGE | 
| Features | |||||
| GPS / Location | n/a | Yes | - | n/a | - | 
| Accessibility | |||||
| Adjustable Text Size | n/a | Yes | - | n/a | - | 
| Hearing Aid Compatible | Yes | Yes | - | - | - | 
| Multiple Languages | n/a | Yes | Yes | n/a | Yes | 
| TTY/TDD (Digital) | Yes | Yes | Yes | - | Yes | 
| Alerts | |||||
| Extra Display | - | Yes | Yes | - | Yes | 
| Ringer Profiles | - | - | Yes | Yes | Yes | 
| Connectivity | |||||
| Bluetooth | Yes | 
			Yes Classic Audio  | 
		
		Yes | 
			Yes Classic Audio  | 
		
		- | 
| Mobile Hotspot | n/a | Yes | - | n/a | - | 
| USB | Yes | 
			Yes Micro-USB  | 
		
		Yes | 
			Yes Micro-USB  | 
		
		Yes | 
| Wi-Fi | Yes | 
			Yes 4 (802.11 b,g,n)  | 
		
		- | 
			Yes 4 (802.11 b,g,n)  | 
		
		- | 
| Contacts | |||||
| Picture ID | n/a | Yes | Yes | n/a | Yes | 
| Ringer ID | n/a | Yes | Yes | n/a | Yes | 
| Voice Dialing | n/a | - | Yes | n/a | Yes | 
| Customization | |||||
| Changeable Body Plates | - | - | - | - | Yes | 
| Custom Graphics | n/a | Yes | Yes | n/a | Yes | 
| Custom Ringtones | n/a | Yes | Yes | n/a | Yes | 
| Real-Music Ringers | n/a | Yes | Yes | n/a | - | 
| Data & Network | |||||
| Data Tethering | n/a | - | Yes | n/a | Yes | 
| WAP / Web Browser | n/a | Yes | Yes | n/a | Yes | 
| Input | |||||
| Predictive Text Entry | n/a | Yes | Yes | n/a | Yes | 
| 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 | n/a | Yes | Yes | n/a | Yes | 
| EMS / Picture Messaging | n/a | - | - | n/a | Yes | 
| Instant Messaging | n/a | - | - | n/a | Yes | 
| MMS | n/a | Yes | Yes | n/a | Yes | 
| Text Messaging Templates | n/a | - | Yes | n/a | Yes | 
| Music | |||||
| FM Radio | - | Yes | Yes | Yes | - | 
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes | - | 
| Music Player | n/a | Yes | Yes | n/a | - | 
| Photo & Video | |||||
| TV Output | - | - | - | Yes | - | 
| Video Calling | n/a | - | - | n/a | - | 
| Productivity | |||||
| Alarm | n/a | Yes | Yes | n/a | Yes | 
| Calculator | n/a | Yes | Yes | n/a | Yes | 
| Calendar | n/a | Yes | Yes | n/a | Yes | 
| To-Do List | n/a | - | Yes | n/a | Yes | 
| Voice Memo | n/a | - | Yes | n/a | Yes | 
| Software | |||||
| Games | n/a | - | Yes | n/a | Yes | 
| Java (J2ME) | n/a | - | Yes | n/a | Yes | 
| Voice | |||||
| HD Voice | - | Yes | - | - | - | 
| Push-To-Talk | - | - | Yes * | - | Yes * | 
| Speaker Phone | Yes | Yes | Yes | Yes | Yes | 
| * Some versions only | |||||
| Nokia Lumia 521 / 520 | Alcatel Go Flip / MyFlip | Sony Ericsson Z550a | Nokia E7-00 | Sony Ericsson Z500 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Alcatel Go Flip / MyFlip | Sony Ericsson Z550a | Nokia E7-00 | Sony Ericsson Z500 | 











