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| Phone | Sony Xperia Z3 | ZTE Z221 | Samsung Galaxy A71 5G | Samsung Knack U310 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5.2" diag. 16 : 9 |
2" diag. 4 : 3 |
6.7" diag. 20 : 9 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
1080 x 1920 pixels (~424 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~393 ppi) AMOLED |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 3,100 mAh | 900 mAh | 4,500 mAh | 1,000 mAh |
| Processor | 2.5 GHz Qualcomm Snapdragon 801 (MSM8974AC) | ? | 2.4 GHz Qualcomm Snapdragon 765 | ? |
| RAM | 3 GB | ? | 6 GB | ? |
| Storage | 16 GB | 142 MB | 128 GB | ? raw hardware |
| Main Camera | 20 megapixel | Yes | 64 megapixel | - |
| Wide Camera | - | - | 12 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | 4K UHD | QCIF (176 x 144) | 4K UHD | - |
| Front Camera | 2 megapixel | - | 32 megapixel | - |
| Weight |
5.36 oz (152g) |
3.24 oz (92g) |
6.52 oz (185g) |
3.63 oz (103g) |
| Dimensions |
5.75" x 2.83" x 0.29" (146 x 72 x 7.3 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
6.39" x 2.97" x 0.31" (162 x 75 x 7.9 mm) |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 12 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 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 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 4) | HSDPA 3.6 | NR (5G) | - |
| Features | ||||
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | n/a | Yes | n/a | Yes |
| Ruggedized | Yes | - | - | - |
| Water-Resistant |
Yes IPX8 (SCUBA) |
- | - | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | Yes |
| Hearing Aid Compatible | Yes | Yes | Yes | Yes |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | Yes |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes |
Yes Classic Audio |
Yes Classic Audio |
- |
| Mobile Hotspot | n/a | - | n/a | - |
| NFC | Yes | - | Yes | - |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
- |
| Wi-Fi | Yes | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | - | n/a | - |
| Ringer ID | n/a | - | n/a | - |
| Voice Dialing | n/a | - | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | - |
| Custom Ringtones | n/a | Yes | n/a | - |
| Real-Music Ringers | n/a | Yes | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | - |
| WAP / Web Browser | n/a | Yes | n/a | - |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | - | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | Yes | n/a | - |
| EMS / Picture Messaging | n/a | - | n/a | Yes |
| Instant Messaging | n/a | Yes | n/a | - |
| MMS | n/a | Yes | n/a | - |
| Text Messaging Templates | n/a | Yes | n/a | - |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | - |
| Music Player | n/a | - | n/a | - |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| DLNA | Yes | - | - | - |
| Miracast | Yes | - | - | - |
| TV Output | Yes | - | - | - |
| Power | ||||
| Fast Charging | Yes | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | - |
| Software | ||||
| Games | n/a | Yes | n/a | - |
| Java (J2ME) | n/a | Yes | n/a | - |
| Voice | ||||
| HD Voice | Yes | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | - | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Sony Xperia Z3 | ZTE Z221 | Samsung Galaxy A71 5G | Samsung Knack U310 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Xperia Z3 | ZTE Z221 | Samsung Galaxy A71 5G | Samsung Knack U310 |
