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| Phone | Samsung Galaxy A51 (4G) | Samsung SCH-A990 | Nokia N81 | Dell Venue Pro | Motorola Q |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
6.5" diag. 20 : 9 |
? |
2.4" diag. 4 : 3 |
4.1" diag. 5 : 3 |
? |
| Display Resolution & Type |
1080 x 2400 pixels (~405 ppi) AMOLED |
240 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~228 ppi) AMOLED |
320 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? | ? |
| Battery | 4,000 mAh | 1,000 mAh | 1,050 mAh | 1,400 mAh | 1,130 mAh |
| Processor | 2.3 GHz Samsung Exynos 9611 | ? | 369 MHz ARM 11 | 1 GHz Qualcomm Snapdragon S1 QSD8250 | ? |
| RAM | 4 GB | ? | ? | ? | ? |
| Storage | 128 GB | ? raw hardware | 8 GB * | 8 GB | ? raw hardware |
| Main Camera | 48 megapixel | 3 megapixel | 2 megapixel | 5 megapixel | 1 megapixel |
| Wide Camera | 12 megapixel | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 4K UHD | ? | VGA (640 x 480) | 720p HD | ? |
| Front Camera | 32 megapixel | - | - | - | - |
| Weight |
6.07 oz (172g) |
4.4 oz (125g) |
4.94 oz (140g) |
6.8 oz (193g) |
4.06 oz (115g) |
| Dimensions |
6.24" x 2.89" x 0.31" (158 x 73 x 7.9 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.02" x 1.97" x 0.7" (102 x 50 x 17.8 mm) |
4.8" x 2.5" x 0.6" (122 x 64 x 15.2 mm) |
4.57" x 2.52" x 0.47" (116 x 64 x 11.9 mm) |
| Form Factor | Slab | Clamshell | Slide | Slide | Slab |
| Platform / OS | Android | (proprietary) | S60 (Symbian) | Windows | Windows Mobile Standard |
| 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 |
CDMA: 850, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
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| Data Technology | LTE (Cat 12) | EVDO r0 | EDGE | HSPA 7.2 | EVDO r0 |
| Features | |||||
| Fingerprint Reader |
Yes in-display (optical) |
- | - | - | - |
| Flashlight | Yes | Yes | - | - | - |
| GPS / Location | n/a | Yes | n/a | n/a | n/a |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | - | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Ringer Profiles | - | - | Yes | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | - | - | Yes |
| MirrorLink | Yes | - | - | - | - |
| NFC | Yes | - | - | - | - |
| USB |
Yes USB Type C |
Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes Mini-USB |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | n/a | n/a |
| Ringer ID | n/a | Yes | n/a | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a | n/a |
| Real-Music Ringers | n/a | Yes | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | n/a | Yes | n/a | n/a | n/a |
| External Antenna Jack | n/a | - | n/a | n/a | n/a |
| WAP / Web Browser | n/a | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes * | - | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | n/a | n/a |
| EMS / Picture Messaging | n/a | Yes | n/a | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a | n/a |
| MMS | n/a | Yes | n/a | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | Yes | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes | - |
| Music Player | n/a | Yes | n/a | n/a | n/a |
| Stereo Speakers | - | Yes | Yes | - | - |
| Photo & Video | |||||
| TV Output | - | Yes | - | - | - |
| Video Calling | n/a | - | n/a | n/a | n/a |
| Power | |||||
| Fast Charging | Yes | - | - | - | - |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a | n/a |
| Voice Memo | n/a | Yes | n/a | n/a | n/a |
| Software | |||||
| BREW | n/a | Yes | n/a | n/a | n/a |
| Games | n/a | Yes | n/a | n/a | n/a |
| Java (J2ME) | n/a | - | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | Yes | - | - | - | - |
| Headset Jack (2.5 mm) | n/a | - | n/a | n/a | n/a |
| Push-To-Talk | - | - | Yes * | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung Galaxy A51 (4G) | Samsung SCH-A990 | Nokia N81 | Dell Venue Pro | Motorola Q | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy A51 (4G) | Samsung SCH-A990 | Nokia N81 | Dell Venue Pro | Motorola Q |
