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| Phone | ZTE Z331 | Google Pixel 3a XL | HTC Droid Eris | HTC Desire 555 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
6" diag. 18 : 9 |
3.2" diag. 5 : 3 |
5" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) AMOLED |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 950 mAh | 3,700 mAh | 1,300 mAh | 2,200 mAh |
| Processor | ? | 2 GHz Qualcomm Snapdragon 670 | 528 MHz MSM7600 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | 4 GB | ? | 2 GB |
| Storage | ? raw hardware | 64 GB | ? raw hardware | 16 GB |
| Main Camera | 3 megapixel | 12 megapixel | 5 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | 4K UHD | CIF (352 x 288) | 720p HD |
| Front Camera | - | 8 megapixel | - | 5 megapixel |
| Weight |
4 oz (113g) |
5.89 oz (167g) |
4.43 oz (126g) |
4.93 oz (140g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
6.3" x 3" x 0.3" (160 x 76 x 7.6 mm) |
4.45" x 2.19" x 0.52" (113 x 55 x 13.2 mm) |
5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | LTE (Cat 11) | EVDO rA | LTE (Cat 4) |
| Features | ||||
| Barometer | - | Yes | - | - |
| Fingerprint Reader | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | - | Yes |
| GPS / Location | Yes | n/a | n/a | n/a |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes * M4, T4 (very 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 | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| NFC | - | Yes | - | - |
| USB |
Yes Micro-USB |
Yes USB Type C |
Yes Mini-USB |
Yes Micro-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 | 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 |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | 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 | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | Yes | n/a | n/a | n/a |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| 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 |
| 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 | ||||
| Call Screening | - | Yes | - | - |
| HD Voice | - | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| ZTE Z331 | Google Pixel 3a XL | HTC Droid Eris | HTC Desire 555 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | Google Pixel 3a XL | HTC Droid Eris | HTC Desire 555 |
