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| Phone | Ericsson R278d | Motorola Rambler | Asus ROG Phone | HTC Amaze 4G |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.2" diag. 4 : 3 |
6" diag. 18 : 9 |
4.3" diag. 16 : 9 |
| Display Resolution & Type | 101 x 40 pixels |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) AMOLED |
540 x 960 pixels (~256 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz |
| Battery | ? | 950 mAh | 4,000 mAh | 1,730 mAh |
| Processor | ? | ? | 3 GHz Qualcomm Snapdragon 845 | 1.5 GHz Qualcomm Snapdragon S3 dual-core |
| RAM | ? | ? | 8 GB | 1 GB |
| Storage | ? raw hardware | ? raw hardware | 128 GB * | 16 GB |
| Main Camera | - | 1 megapixel | 12 megapixel | 8 megapixel |
| Wide Camera | - | - | 8 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | 4K UHD | 1080p HD |
| Front Camera | - | - | 8 megapixel | 2 megapixel |
| Weight |
9.28 oz (263g) |
3.81 oz (108g) |
7.05 oz (200g) |
6.1 oz (173g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
3.7" x 2.24" x 0.7" (94 x 57 x 17.8 mm) |
6.25" x 3" x 0.34" (159 x 76 x 8.6 mm) |
5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
CDMA: 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34, 38, 39, 40, 41, 46 WCDMA: 1, 2, 3, 4, 5, 8, 19 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | 1xRTT | LTE (Cat 16) | HSPA+ 42 |
| Features | ||||
| Fingerprint Reader | - | - | Yes | - |
| Flashlight | - | - | Yes | Yes |
| GPS / Location | - | Yes | n/a | n/a |
| Water-Resistant | - | - | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | n/a |
| NFC | - | - | Yes | Yes |
| USB | - |
Yes Mini-USB |
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 |
| 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 | Yes | n/a | n/a |
| Real-Music Ringers | - | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | n/a |
| Dual-SIM | - | - | Yes | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | - | Yes | n/a | n/a |
| Instant Messaging | - | Yes | 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 | - | - | n/a | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | - | - | Yes | Yes |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | - | Yes | n/a | n/a |
| Calendar | - | 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 | ||||
| Headset Jack (2.5 mm) | - | Yes | n/a | n/a |
| Speaker Phone | - | Yes | Yes | Yes |
| Ericsson R278d | Motorola Rambler | Asus ROG Phone | HTC Amaze 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | Motorola Rambler | Asus ROG Phone | HTC Amaze 4G |
