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| Phone | Samsung M400 | LG Stylo 4 | Samsung Galaxy Ring / Prevail 2 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
6.2" diag. 18 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~390 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz |
| Battery | 1,000 mAh | 3,300 mAh | 1,750 mAh |
| Processor | 400 MHz Qualcomm QSC6155 | 1.8 GHz Qualcomm Snapdragon 450 | 1.4 GHz Qualcomm Snapdragon S2 MSM8655 |
| RAM | 128 MB | 2 GB * | 1 GB |
| Storage | 256 MB | 32 GB * | 4 GB |
| Main Camera | 1 megapixel | 13 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | 1080p HD | 720p HD |
| Front Camera | - | 5 megapixel | 1 megapixel |
| Weight |
3.7 oz (105g) |
6.07 oz (172g) |
3.4 oz (96g) |
| Dimensions |
3.8" x 1.9" x 0.7" (97 x 48 x 17.8 mm) |
6.31" x 3.06" x 0.33" (160 x 78 x 8.4 mm) |
4.83" x 2.48" x 0.47" (123 x 63 x 11.9 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android |
| Network Bands |
CDMA: 800, 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
| Data Technology | 1xRTT | LTE (Cat 6) | EVDO rA |
| Features | |||
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | - |
| GPS / Location | Yes | n/a | n/a |
| Accessibility | |||
| Adjustable Text Size | Yes | n/a | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | Yes | - | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| NFC | - | Yes * | - |
| USB |
Yes Micro-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 | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a |
| Data & Network | |||
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Stylus | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | 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 | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes |
| Music Player | - | n/a | n/a |
| Photo & Video | |||
| DLNA | - | Yes | Yes |
| Productivity | |||
| Alarm | 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 |
| Voice | |||
| HD Voice | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung M400 | LG Stylo 4 | Samsung Galaxy Ring / Prevail 2 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung M400 | LG Stylo 4 | Samsung Galaxy Ring / Prevail 2 |
