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| Phone | ZTE Z331 | Motorola Droid Ultra | BlackBerry 7750 | Samsung Galaxy A71 5G |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
5" diag. 16 : 9 |
? |
6.7" diag. 20 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) AMOLED |
240 x 240 pixels LCD (Color) |
1080 x 2400 pixels (~393 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 950 mAh | 2,130 mAh | ? | 4,500 mAh |
| Processor | ? | 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T | ? | 2.4 GHz Qualcomm Snapdragon 765 |
| RAM | ? | 2 GB | ? | 6 GB |
| Storage | ? raw hardware | 16 GB | ? raw hardware | 128 GB |
| Main Camera | 3 megapixel | 10 megapixel | - | 64 megapixel |
| Wide Camera | - | - | - | 12 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | 1080p HD | - | 4K UHD |
| Front Camera | - | 2 megapixel | - | 32 megapixel |
| Weight |
4 oz (113g) |
4.83 oz (137g) |
5.01 oz (142g) |
6.52 oz (185g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
5.41" x 2.8" x 0.28" (137 x 71 x 7.2 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
6.39" x 2.97" x 0.31" (162 x 75 x 7.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | BlackBerry OS | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
5G: 2, 5, 41, 66, 71, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | LTE (Cat 3) | 1xRTT | NR (5G) |
| Features | ||||
| Fingerprint Reader | - | - | - |
Yes in-display (optical) |
| Flashlight | - | - | - | Yes |
| GPS / Location | Yes | n/a | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | 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 |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | Yes | - | Yes |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | n/a |
| Instant Messaging | Yes | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes |
| Music Player | Yes | n/a | n/a | n/a |
| Photo & Video | ||||
| Miracast | - | Yes | - | - |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | - | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | - | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | - | Yes |
| ZTE Z331 | Motorola Droid Ultra | BlackBerry 7750 | Samsung Galaxy A71 5G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | Motorola Droid Ultra | BlackBerry 7750 | Samsung Galaxy A71 5G |
