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| Phone | Sony Ericsson K850 | Motorola Moto z4 | Sony Xperia XA1 | Casio G'zOne Boulder |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
6.4" diag. 19.5 : 9 |
5" diag. 16 : 9 |
2" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~403 ppi) AMOLED |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | ? | 3,600 mAh | 2,300 mAh | 810 mAh |
| Processor | ? | 2 GHz Qualcomm Snapdragon 675 | 2.3 GHz MediaTek Helio P20 (MT6757) | ? |
| RAM | ? | 4 GB | 3 GB | ? |
| Storage | ? raw hardware | 128 GB | 32 GB | ? raw hardware |
| Main Camera | 5 megapixel | 48 megapixel | 23 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 4K UHD | 1080p HD | ? |
| Front Camera | - | 25 megapixel | 8 megapixel | - |
| Weight |
4.2 oz (119g) |
6 oz (170g) |
5.04 oz (143g) |
4.9 oz (139g) |
| Dimensions |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
6.22" x 2.96" x 0.29" (158 x 75 x 7.4 mm) |
5.71" x 2.64" x 0.31" (145 x 67 x 8 mm) |
3.9" x 2" x 0.9" (99 x 51 x 22.9 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 30, 38, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12, 13, 17, 28, 29, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | HSDPA 3.6 | LTE (Cat 12) | LTE (Cat 6) | EVDO rA |
| Features | ||||
| Fingerprint Reader | - | Yes | - | - |
| Flashlight | - | Yes | Yes | Yes |
| GPS / Location | - | n/a | n/a | Yes |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | Yes | - | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | Yes | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| NFC | - | Yes | Yes | - |
| USB | Yes |
Yes USB Type C |
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 | Yes |
| Ringer ID | Yes | n/a | n/a | Yes |
| Voice Dialing | Yes | n/a | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | - | - | - | Yes |
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Real-Music Ringers | Yes | n/a | n/a | - |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | Yes | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | - |
| EMS / Picture Messaging | - | n/a | n/a | Yes |
| MMS | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes |
| Music | ||||
| FM Radio | Yes | Yes | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | - |
| Music Player | Yes | n/a | n/a | Yes |
| Photo & Video | ||||
| Miracast | - | - | Yes | - |
| Video Calling | Yes * | n/a | n/a | - |
| Power | ||||
| Fast Charging | - | Yes | Yes | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | Yes |
| To-Do List | Yes | n/a | n/a | - |
| Voice Memo | Yes | n/a | n/a | Yes |
| Software | ||||
| BREW | - | n/a | n/a | Yes |
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | - |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson K850 | Motorola Moto z4 | Sony Xperia XA1 | Casio G'zOne Boulder | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson K850 | Motorola Moto z4 | Sony Xperia XA1 | Casio G'zOne Boulder |
