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| Phone | Sony Ericsson K850 | Sharp Sidekick LX 2009 | Alcatel 665 | Motorola Moto z4 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
3.2" diag. 16 : 9 |
1.8" diag. 4 : 3 |
6.4" diag. 19.5 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~403 ppi) AMOLED |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | 1,250 mAh | 650 mAh | 3,600 mAh |
| Processor | ? | ? | ? | 2 GHz Qualcomm Snapdragon 675 |
| RAM | ? | ? | 16 MB | 4 GB |
| Storage | ? raw hardware | ? raw hardware | 32 MB | 128 GB |
| Main Camera | 5 megapixel | 3 megapixel | 2 megapixel | 48 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | QVGA (320 x 240) | QCIF (176 x 144) | 4K UHD |
| Front Camera | - | - | - | 25 megapixel |
| Weight |
4.2 oz (119g) |
5.78 oz (164g) |
2.72 oz (77g) |
6 oz (170g) |
| Dimensions |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
3.78" x 1.89" x 0.66" (96 x 48 x 16.8 mm) |
6.22" x 2.96" x 0.29" (158 x 75 x 7.4 mm) |
| Form Factor | Slab | Swivel | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
GSM: 850, 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 |
| Data Technology | HSDPA 3.6 | HSPA 7.2 | - | LTE (Cat 12) |
| Features | ||||
| Fingerprint Reader | - | - | - | Yes |
| Flashlight | - | - | - | Yes |
| GPS / Location | - | Yes | - | n/a |
| Water-Resistant | - | - | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | Yes | - | n/a |
| Hearing Aid Compatible | - | Yes | Yes | Yes |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | - | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | Yes | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| NFC | - | - | - | Yes |
| USB | Yes | Yes |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Voice Dialing | Yes | - | - | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | Yes | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | Yes | - | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | - | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | - | - | Yes |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | Yes | - | n/a |
| Instant Messaging | - | Yes | Yes | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| FM Radio | Yes | - | Yes | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | Yes | Yes | Yes | n/a |
| Photo & Video | ||||
| Video Calling | Yes * | - | - | n/a |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | - | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | Yes | Yes | - | n/a |
| Voice Memo | Yes | - | Yes | n/a |
| Software | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | Yes | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson K850 | Sharp Sidekick LX 2009 | Alcatel 665 | Motorola Moto z4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson K850 | Sharp Sidekick LX 2009 | Alcatel 665 | Motorola Moto z4 |
