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| Phone | Ericsson R278d | Microsoft Lumia 550 | Amazon Fire | Nokia X100 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4.7" diag. 16 : 9 |
4.7" diag. 16 : 9 |
6.7" diag. 20 : 9 |
| Display Resolution & Type | 101 x 40 pixels |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~395 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | 2,100 mAh | 2,400 mAh | 4,470 mAh |
| Processor | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 2.2 GHz Qualcomm Snapdragon 800 | 2 GHz Qualcomm Snapdragon 480 |
| RAM | ? | 1 GB | 2 GB | 6 GB |
| Storage | ? raw hardware | 8 GB | 32 GB * | 128 GB |
| Main Camera | - | 5 megapixel | 13 megapixel | 48 megapixel |
| Wide Camera | - | - | - | 5 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | - | 720p HD | 1080p HD | 1080p HD |
| Front Camera | - | 2 megapixel | 2 megapixel | 16 megapixel |
| Weight |
9.28 oz (263g) |
5.01 oz (142g) |
5.64 oz (160g) |
7.65 oz (217g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
5.36" x 2.67" x 0.39" (136 x 68 x 9.9 mm) |
5.5" x 2.6" x 0.35" (140 x 66 x 8.9 mm) |
6.75" x 3.14" x 0.36" (171 x 80 x 9.1 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Windows | (proprietary) | Android |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 4, 5, 7, 12, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
5G: 25, 41, 66, 71 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 38, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | LTE (Cat 4) | LTE (Cat 4) | NR (5G) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | Yes | Yes | Yes |
| GPS / Location | - | n/a | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | n/a |
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | Yes | n/a |
| NFC | - | - | Yes | Yes |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 ac,b,g,n) |
| Contacts | ||||
| Picture ID | - | n/a | Yes | n/a |
| Ringer ID | - | n/a | Yes | n/a |
| Voice Dialing | - | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | - | n/a | - | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | Yes | n/a |
| WAP / Web Browser | Yes | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | 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 | Yes | n/a |
| MMS | - | n/a | Yes | n/a |
| Text Messaging Templates | - | n/a | Yes | n/a |
| Music | ||||
| FM Radio | - | Yes | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | - | n/a | Yes | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| Miracast | - | - | Yes | - |
| TV Output | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | n/a |
| Calculator | - | n/a | Yes | n/a |
| Calendar | - | n/a | Yes | n/a |
| To-Do List | - | n/a | - | n/a |
| Voice Memo | - | n/a | Yes | n/a |
| Software | ||||
| Games | - | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | Yes | Yes | Yes |
| Speaker Phone | - | Yes | Yes | Yes |
| Ericsson R278d | Microsoft Lumia 550 | Amazon Fire | Nokia X100 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | Microsoft Lumia 550 | Amazon Fire | Nokia X100 |
