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| Phone | Samsung Galaxy A51 (4G) | Microsoft Lumia 950 XL | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
6.5" diag. 20 : 9 |
5.7" diag. 16 : 9 |
? |
| Display Resolution & Type |
1080 x 2400 pixels (~405 ppi) AMOLED |
1440 x 2560 pixels (~515 ppi) AMOLED |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? |
| Battery | 4,000 mAh | 3,340 mAh | 1,000 mAh |
| Processor | 2.3 GHz Samsung Exynos 9611 | 2 GHz Qualcomm Snapdragon 810 (MSM8994) | ? |
| RAM | 4 GB | 3 GB | ? |
| Storage | 128 GB | 32 GB | ? raw hardware |
| Main Camera | 48 megapixel | 20 megapixel | 3 megapixel |
| Wide Camera | 12 megapixel | - | - |
| Tele Camera | - | - | - |
| Video Capture | 4K UHD | 4K UHD | ? |
| Front Camera | 32 megapixel | 5 megapixel | - |
| Weight |
6.07 oz (172g) |
5.82 oz (165g) |
4.4 oz (125g) |
| Dimensions |
6.24" x 2.89" x 0.31" (158 x 73 x 7.9 mm) |
5.98" x 3.09" x 0.32" (152 x 78 x 8.1 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Slab | Slab | Clamshell |
| Platform / OS | Android | Windows | (proprietary) |
| Network Bands |
4G LTE: 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 28, 30, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 40 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 12) | LTE (Cat 6) | EVDO r0 |
| Features | |||
| Fingerprint Reader |
Yes in-display (optical) |
- | - |
| Flashlight | Yes | Yes | Yes |
| GPS / Location | n/a | n/a | Yes |
| Accessibility | |||
| Adjustable Text Size | n/a | n/a | - |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| MirrorLink | Yes | - | - |
| Mobile Hotspot | n/a | n/a | - |
| NFC | Yes | Yes | - |
| USB |
Yes USB Type C |
Yes USB Type C |
Yes |
| Wi-Fi |
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 | Yes |
| Custom Ringtones | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | Yes |
| 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 |
- |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | n/a | n/a | - |
| EMS / Picture Messaging | n/a | n/a | Yes |
| MMS | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | Yes |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | Yes | - |
| Music Player | n/a | n/a | Yes |
| Stereo Speakers | - | - | Yes |
| Photo & Video | |||
| DLNA | - | Yes | - |
| Miracast | - | Yes | - |
| TV Output | - | Yes | Yes |
| Power | |||
| Fast Charging | Yes | Yes | - |
| Wireless 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 | |||
| BREW | n/a | n/a | Yes |
| Games | n/a | n/a | Yes |
| Voice | |||
| HD Voice | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| Samsung Galaxy A51 (4G) | Microsoft Lumia 950 XL | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy A51 (4G) | Microsoft Lumia 950 XL | Samsung SCH-A990 |
