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| Phone | Nokia Lumia 521 / 520 | Samsung Galaxy A23 5G | Amazon Fire |
| Current U.S. Carriers | (none) | Verizon | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
6.6" diag. 20 : 9 |
4.7" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
1080 x 2408 pixels (~400 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 120 Hz | ? |
| Battery | 1,430 mAh | 5,000 mAh | 2,400 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | 2.2 GHz Snapdragon 695 | 2.2 GHz Qualcomm Snapdragon 800 |
| RAM | 512 MB | 4 GB | 2 GB |
| Storage | 8 GB | 64 GB | 32 GB * |
| Main Camera | 5 megapixel | 50 megapixel | 13 megapixel |
| Wide Camera | - | 5 megapixel | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | 1080p HD | 1080p HD |
| Front Camera | - | 8 megapixel | 2 megapixel |
| Weight |
4.39 oz (124g) |
6.87 oz (195g) |
5.64 oz (160g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
6.47" x 3.02" x 0.33" (164 x 77 x 8.4 mm) |
5.5" x 2.6" x 0.35" (140 x 66 x 8.9 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | Windows | Android | (proprietary) |
| Network Bands |
5G: 2, 5, 25, 30, 41, 48, 66, 70, 71, 77-C 4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 29, 30, 38, 39, 40, 41, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | NR (5G) | LTE (Cat 4) |
| Features | |||
| Barometer | - | Yes | - |
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes |
| GPS / Location | n/a | n/a | Yes |
| Water-Resistant | - |
Yes IPX7 (snorkeling) |
- |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | n/a | n/a | Yes |
| NFC | - | Yes | Yes |
| USB | Yes |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | Yes |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||
| Picture ID | n/a | n/a | Yes |
| Ringer ID | n/a | n/a | Yes |
| Voice Dialing | n/a | n/a | Yes |
| Customization | |||
| Custom Graphics | n/a | n/a | - |
| Custom Ringtones | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | - |
| Data & Network | |||
| Data Tethering | n/a | n/a | Yes |
| WAP / Web Browser | n/a | n/a | Yes |
| Input | |||
| Predictive Text Entry | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | n/a | n/a | Yes |
| Instant Messaging | n/a | n/a | - |
| MMS | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | Yes |
| Music | |||
| Headphone Jack (3.5mm) | Yes | Yes | Yes |
| Music Player | n/a | n/a | Yes |
| Stereo Speakers | - | Yes | Yes |
| Photo & Video | |||
| Miracast | - | - | Yes |
| TV Output | - | - | Yes |
| Power | |||
| Fast Charging | - | Yes | - |
| Productivity | |||
| Alarm | n/a | n/a | Yes |
| Calculator | n/a | n/a | Yes |
| Calendar | n/a | n/a | Yes |
| To-Do List | n/a | n/a | - |
| Voice Memo | n/a | n/a | Yes |
| Software | |||
| Games | n/a | n/a | Yes |
| Voice | |||
| HD Voice | - | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Nokia Lumia 521 / 520 | Samsung Galaxy A23 5G | Amazon Fire | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Samsung Galaxy A23 5G | Amazon Fire |
