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| Phone | Microsoft Lumia 550 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Galaxy A03s |
| Current U.S. Carriers | (none) | (none) |
AT&T Consumer Cellular TracFone Verizon |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4.7" diag. 16 : 9 |
? |
6.5" diag. 20 : 9 |
| Display Resolution & Type |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (Color) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | 2,100 mAh | 600 mAh | 5,000 mAh |
| Processor | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | 2.3 GHz Mediatek Helio P35 (MT6765V) |
| RAM | 1 GB | ? | 3 GB |
| Storage | 8 GB | ? raw hardware | 32 GB |
| Main Camera | 5 megapixel | Yes | 13 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | - | 1080p HD |
| Front Camera | 2 megapixel | - | 5 megapixel |
| Weight |
5.01 oz (142g) |
3 oz (85g) |
6.98 oz (198g) |
| Dimensions |
5.36" x 2.67" x 0.39" (136 x 68 x 9.9 mm) |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
6.53" x 2.98" x 0.36" (166 x 76 x 9.1 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | Windows | (proprietary) | Android |
| Network Bands |
4G LTE: 2, 4, 5, 7, 12, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12, 13, 14, 25, 26, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | GPRS | LTE (Cat 6) |
| Features | |||
| Barometer | - | - | Yes |
| Fingerprint Reader | - | - |
Yes stand-alone |
| Flashlight | Yes | - | Yes |
| GPS / Location | n/a | - | n/a |
| Accessibility | |||
| Adjustable Text Size | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | - | Yes |
| Infrared (IR) | - | Yes | - |
| Mobile Hotspot | n/a | - | n/a |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||
| Picture ID | n/a | Yes | n/a |
| Ringer ID | n/a | Yes | n/a |
| Voice Dialing | n/a | - | n/a |
| Customization | |||
| Changeable Body Plates | - | Yes | - |
| Custom Graphics | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a |
| Real-Music Ringers | n/a | - | n/a |
| Data & Network | |||
| WAP / Web Browser | n/a | Yes | n/a |
| Input | |||
| Predictive Text Entry | n/a | Yes | n/a |
| Side Keys | Yes | - | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | - | Yes |
| Messaging | |||
| Email Client | n/a | - | n/a |
| EMS / Picture 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 |
| Productivity | |||
| Alarm | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a |
| Voice Memo | n/a | Yes | n/a |
| Software | |||
| Games | n/a | Yes | n/a |
| Java (J2ME) | n/a | Yes | n/a |
| Voice | |||
| Call Screening | - | Yes | - |
| HD Voice | Yes | - | Yes |
| Push-To-Talk | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Microsoft Lumia 550 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Galaxy A03s | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Microsoft Lumia 550 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Galaxy A03s |
