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| Phone | Nokia XR21 | Sony Ericsson Xperia X10 mini (2010) | Kyocera DuraPlus | ZTE Z998 / Unico LTE |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
6.5" diag. 20 : 9 |
2.6" diag. 4 : 3 |
2" diag. 4 : 3 |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
1080 x 2400 pixels (~406 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~157 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 4,800 mAh | ? | 1,650 mAh | 2,070 mAh |
| Processor | Snapdragon 695 | 600 MHz Qualcomm S1 MSM7227 | ? | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 |
| RAM | 6 GB | ? | 128 MB | 1 GB |
| Storage | 128 GB | ? raw hardware | 256 MB | 4 GB |
| Main Camera | 64 megapixel | 5 megapixel | - | 5 megapixel |
| Wide Camera | 8 megapixel | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | VGA (640 x 480) | - | 720p HD |
| Front Camera | 16 megapixel | - | - | 1 megapixel |
| Weight |
8.16 oz (231g) |
3.11 oz (88g) |
6.67 oz (189g) |
4.8 oz (136g) |
| Dimensions |
6.61" x 3.09" x 0.41" (168 x 78 x 10.4 mm) |
3.26" x 1.97" x 0.64" (83 x 50 x 16.3 mm) |
5.28" x 2.17" x 0.93" (134 x 55 x 23.6 mm) |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | Android | Android | (proprietary) | Android |
| Network Bands |
5G: 1, 2, 3, 5, 7, 20, 25, 28, 40, 41, 66, 71, 77-C, 78, 79, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
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| Data Technology | NR (5G) | HSPA 7.2 | EVDO rA | LTE (Cat 3) |
| Features | ||||
| Barometer | Yes | - | - | - |
| Fingerprint Reader |
Yes stand-alone |
- | - | - |
| Flashlight | Yes | - | Yes | - |
| GPS / Location | n/a | n/a | Yes | n/a |
| Ruggedized | Yes | - | Yes | - |
| Water-Resistant |
Yes IPX8 (SCUBA) |
- | Yes | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | Yes | n/a |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | n/a | - | n/a |
| NFC | Yes | - | - | - |
| USB |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi |
Yes 6 (802.11 a,ac,ax,b,g,n) |
Yes 802.11 b,g |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | - | n/a |
| Ringer ID | n/a | n/a | Yes | n/a |
| Voice Dialing | n/a | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | - | n/a |
| Dual-SIM | Yes | - | - | - |
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | n/a | n/a | - | n/a |
| Instant Messaging | n/a | n/a | - | n/a |
| MMS | n/a | n/a | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a |
| Music | ||||
| FM Radio | Yes | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Music Player | n/a | n/a | - | n/a |
| Power | ||||
| Fast Charging | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | - | n/a |
| Voice Memo | n/a | n/a | Yes | n/a |
| Software | ||||
| BREW | n/a | n/a | Yes | n/a |
| Games | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a |
| Push-To-Talk | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Nokia XR21 | Sony Ericsson Xperia X10 mini (2010) | Kyocera DuraPlus | ZTE Z998 / Unico LTE | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia XR21 | Sony Ericsson Xperia X10 mini (2010) | Kyocera DuraPlus | ZTE Z998 / Unico LTE |
