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| Phone | Nokia Lumia 521 / 520 | ZTE Blade Max 3 / Max Blue | BlackBerry Curve 8300 | Samsung Galaxy Z Flip5 | LG LX-350 | 
| Current U.S. Carriers | (none) | (none) | (none) | AT&T Verizon | (none) | 
| Global Availability | Released | Released | Released | Released | Released | 
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | 4" diag. 5 : 3 | 6" diag. 16 : 9 | ? | 6.7" diag. 22 : 9 | ? | 
| Display Resolution & Type | 480 x 800 pixels (~233 ppi) LCD (TFT/TFD) | 1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) | 320 x 240 pixels LCD (TFT/TFD) | 1080 x 2640 pixels (~426 ppi) AMOLED | 128 x 160 pixels LCD (TFT/TFD) | 
| Display Refresh | ? | 60 Hz | ? | 120 Hz | ? | 
| Battery | 1,430 mAh | 4,000 mAh | ? | 3,700 mAh | ? | 
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 2 GHz Qualcomm Snapdragon 625 (MSM8953) | ? | Snapdragon 8 Gen 2 for Galaxy | ? | 
| RAM | 512 MB | 2 GB | ? | 8 GB | ? | 
| Storage | 8 GB | 16 GB | ? raw hardware | 256 GB * | ? raw hardware | 
| Main Camera | 5 megapixel | 13 megapixel | 2 megapixel | 12 megapixel | 1 megapixel | 
| Wide Camera | - | - | - | 12 megapixel | - | 
| Tele Camera | - | - | - | - | - | 
| Video Capture | 720p HD | 4K UHD | - | 4K UHD | ? | 
| Front Camera | - | 5 megapixel | - | 10 megapixel | - | 
| Weight | 4.39 oz (124g) | 6.34 oz (180g) | 3.92 oz (111g) | 6.6 oz (187g) | 3.7 oz (105g) | 
| Dimensions | 4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) | 6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm) | 4.2" x 2.36" x 0.61" (107 x 60 x 15.5 mm) | 3.35" x 2.83" x 0.59" (85 x 72 x 15 mm) | 3.62" x 1.85" x 0.9" (92 x 47 x 22.9 mm) | 
| Form Factor | Slab | Slab | Slab | Foldable | Clamshell | 
| Platform / OS | Windows | Android | BlackBerry OS | Android | (proprietary) | 
| Network Bands | 4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 | GSM: 850, 900, 1800, 1900 | 5G: 2, 5, 7, 12, 25, 26, 30, 41, 48, 66, 71, 77-A, 77-C, 78, 257, 258, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 | CDMA: 850, 1900 AMPS: 850 | |
| Data Technology | HSPA+ 21 | LTE (Cat 4) | EDGE | NR (5G) | 1xRTT | 
| Features | |||||
| Barometer | - | - | - | Yes | - | 
| Fingerprint Reader | - | Yes stand-alone | - | Yes stand-alone | - | 
| Flashlight | - | Yes | - | Yes | - | 
| GPS / Location | n/a | n/a | n/a | n/a | Yes | 
| Water-Resistant | - | - | - | Yes IPX8 (SCUBA) | - | 
| Accessibility | |||||
| Adjustable Text Size | n/a | n/a | n/a | n/a | Yes | 
| Hearing Aid Compatible | Yes | Yes | - | Yes | Yes | 
| Multiple Languages | n/a | n/a | n/a | n/a | Yes | 
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes | 
| Alerts | |||||
| Extra Display | - | - | - | Yes | Yes | 
| Ringer Profiles | - | - | Yes | - | - | 
| Connectivity | |||||
| Bluetooth | Yes | Yes Classic Audio | Yes Classic Audio | Yes Auracast, LE Audio, Classic Audio | Yes Classic Audio | 
| Mobile Hotspot | n/a | n/a | n/a | n/a | - | 
| NFC | - | - | - | Yes | - | 
| USB | Yes | Yes USB Type C | Yes | Yes USB Type C | - | 
| Wi-Fi | Yes | Yes 5 (802.11 ac,b,g,n) | - | Yes 6E (802.11 a,ac,ax,b,g,n) | - | 
| Contacts | |||||
| Picture ID | n/a | n/a | n/a | n/a | Yes | 
| Ringer ID | n/a | n/a | n/a | n/a | Yes | 
| Voice Dialing | n/a | n/a | n/a | n/a | Yes | 
| Customization | |||||
| Custom Graphics | n/a | n/a | n/a | n/a | Yes | 
| Custom Ringtones | n/a | n/a | n/a | n/a | Yes | 
| Real-Music Ringers | n/a | n/a | n/a | n/a | - | 
| Data & Network | |||||
| Data Tethering | n/a | n/a | n/a | n/a | Yes | 
| Dual-SIM | - | - | - | Yes | - | 
| WAP / Web Browser | n/a | n/a | n/a | n/a | Yes | 
| Input | |||||
| Predictive Text Entry | n/a | n/a | n/a | n/a | Yes | 
| Side Keys | Yes | Yes | Yes | Yes | Yes | 
| Text Keyboard, Hardware | - | - | Yes | - | - | 
| Touch Screen | Yes | Yes | - | Yes | - | 
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | - | - | 
| Messaging | |||||
| Email Client | n/a | n/a | n/a | n/a | - | 
| Instant Messaging | n/a | n/a | n/a | n/a | - | 
| MMS | n/a | n/a | n/a | n/a | - | 
| Music | |||||
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - | - | 
| Music Player | n/a | n/a | n/a | n/a | - | 
| Power | |||||
| Fast Charging | - | Yes | - | Yes | - | 
| Wireless Charging | - | - | - | Yes | - | 
| Productivity | |||||
| Alarm | n/a | n/a | n/a | n/a | Yes | 
| Calculator | n/a | n/a | n/a | n/a | Yes | 
| Calendar | n/a | n/a | n/a | n/a | Yes | 
| To-Do List | n/a | n/a | n/a | n/a | - | 
| Voice Memo | n/a | n/a | n/a | n/a | Yes | 
| Software | |||||
| Games | n/a | n/a | n/a | n/a | Yes | 
| Java (J2ME) | n/a | n/a | n/a | n/a | Yes | 
| Voice | |||||
| HD Voice | - | - | - | Yes | - | 
| Headset Jack (2.5 mm) | n/a | n/a | n/a | n/a | Yes | 
| Push-To-Talk | - | - | Yes * | - | - | 
| Speaker Phone | Yes | Yes | Yes | Yes | Yes | 
| * Some versions only | |||||
| Nokia Lumia 521 / 520 | ZTE Blade Max 3 / Max Blue | BlackBerry Curve 8300 | Samsung Galaxy Z Flip5 | LG LX-350 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
|  |  |  |  |  | |
| Phone | Nokia Lumia 521 / 520 | ZTE Blade Max 3 / Max Blue | BlackBerry Curve 8300 | Samsung Galaxy Z Flip5 | LG LX-350 | 
 







