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| Phone | ZTE Z331 | Samsung SGH-A127 | Nubia Red Magic 3 / 3S | Samsung Galaxy Ring / Prevail 2 | Motorola i80s |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
? |
6.7" diag. 19.5 : 9 |
4" diag. 5 : 3 |
? |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
1080 x 2340 pixels (~388 ppi) AMOLED |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
? |
| Display Refresh | ? | ? | 90 Hz | 60 Hz | ? |
| Battery | 950 mAh | 800 mAh | 5,000 mAh | 1,750 mAh | ? |
| Processor | ? | ? | Qualcomm Snapdragon 855+ | 1.4 GHz Qualcomm Snapdragon S2 MSM8655 | ? |
| RAM | ? | ? | 8 GB * | 1 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 128 GB * | 4 GB | ? raw hardware |
| Main Camera | 3 megapixel | Yes | 48 megapixel | 5 megapixel | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | QCIF (176 x 144) | - | 4K UHD | 720p HD | - |
| Front Camera | - | - | 16 megapixel | 1 megapixel | - |
| Weight |
4 oz (113g) |
2.86 oz (81g) |
7.58 oz (215g) |
3.4 oz (96g) |
4 oz (113g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
3.39" x 1.67" x 0.76" (86 x 42 x 19.3 mm) |
6.76" x 3.09" x 0.38" (172 x 79 x 9.7 mm) |
4.83" x 2.48" x 0.47" (123 x 63 x 11.9 mm) |
5.4" x 2" x 1" (137 x 51 x 25.4 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8, 19 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
iDEN: 800 |
| Data Technology | HSDPA 3.6 | GPRS | LTE (Cat 9) | EVDO rA | - |
| Features | |||||
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | - | - | Yes | - | - |
| GPS / Location | Yes | - | n/a | n/a | - |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- | - |
Yes M4 (very compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | Yes | - | - | - |
| Ringer Profiles | Yes | - | - | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | Yes | - |
| USB |
Yes Micro-USB |
- |
Yes USB Type C |
Yes | - |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 a,b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | - | n/a | n/a | - |
| Ringer ID | Yes | Yes | n/a | n/a | - |
| Voice Dialing | - | - | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | - |
| Custom Ringtones | Yes | Yes | n/a | n/a | - |
| Real-Music Ringers | Yes | - | n/a | n/a | - |
| Data & Network | |||||
| Data Tethering | Yes | - | n/a | n/a | Yes |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | Yes |
| Side Keys | Yes | 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 | - |
| Instant Messaging | Yes | - | n/a | n/a | - |
| MMS | Yes | Yes | n/a | n/a | - |
| Text Messaging Templates | Yes | Yes | n/a | n/a | - |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes | - |
| Music Player | Yes | - | n/a | n/a | - |
| Stereo Speakers | - | - | Yes | - | - |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | - |
| TV Output | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | Yes |
| Calculator | Yes | Yes | n/a | n/a | Yes |
| Calendar | Yes | Yes | n/a | n/a | Yes |
| To-Do List | - | Yes | n/a | n/a | - |
| Voice Memo | Yes | Yes | n/a | n/a | Yes |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | n/a | Yes |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | - | - | n/a | n/a | Yes |
| Push-To-Talk | - | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| ZTE Z331 | Samsung SGH-A127 | Nubia Red Magic 3 / 3S | Samsung Galaxy Ring / Prevail 2 | Motorola i80s | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | Samsung SGH-A127 | Nubia Red Magic 3 / 3S | Samsung Galaxy Ring / Prevail 2 | Motorola i80s |
