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| Phone | Sony Ericsson K850 | Samsung Jitterbug Touch3 / Galaxy Stardust | Microsoft Lumia 550 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
4" diag. 5 : 3 |
4.7" diag. 16 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? |
| Battery | ? | 1,500 mAh | 2,100 mAh |
| Processor | ? | 1.2 GHz Qualcomm Snapdragon 200 MSM8610 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | 1 GB | 1 GB |
| Storage | ? raw hardware | 8 GB | 8 GB |
| Main Camera | 5 megapixel | 5 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | WVGA / 480p | 720p HD |
| Front Camera | - | Yes | 2 megapixel |
| Weight |
4.2 oz (119g) |
4.2 oz (119g) |
5.01 oz (142g) |
| Dimensions |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
4.8" x 2.5" x 0.4" (122 x 64 x 10.2 mm) |
5.36" x 2.67" x 0.39" (136 x 68 x 9.9 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Windows |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 7, 12, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | EVDO rA | LTE (Cat 4) |
| Features | |||
| Flashlight | - | - | Yes |
| GPS / Location | - | n/a | n/a |
| Accessibility | |||
| Adjustable Text Size | - | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a |
| Data & Network | |||
| Data Tethering | Yes | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | Yes | n/a | n/a |
| Instant Messaging | - | n/a | n/a |
| MMS | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a |
| Music | |||
| FM Radio | Yes | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | Yes | n/a | n/a |
| Photo & Video | |||
| Video Calling | Yes * | n/a | n/a |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | Yes | n/a | n/a |
| Voice Memo | Yes | n/a | n/a |
| Software | |||
| Games | Yes | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a |
| Voice | |||
| HD Voice | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Sony Ericsson K850 | Samsung Jitterbug Touch3 / Galaxy Stardust | Microsoft Lumia 550 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson K850 | Samsung Jitterbug Touch3 / Galaxy Stardust | Microsoft Lumia 550 |
