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| Phone | Samsung Galaxy Ring / Prevail 2 | Samsung SGH-X640 | LG Stylo 4 | Samsung SGH-T819 | CAT S61 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
? |
6.2" diag. 18 : 9 |
? |
5.2" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2160 pixels (~390 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
1080 x 1920 pixels (~424 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,750 mAh | 800 mAh | 3,300 mAh | ? | 4,500 mAh |
| Processor | 1.4 GHz Qualcomm Snapdragon S2 MSM8655 | ? | 1.8 GHz Qualcomm Snapdragon 450 | ? | 2.2 GHz Qualcomm Snapdragon 630 |
| RAM | 1 GB | ? | 2 GB * | ? | 4 GB |
| Storage | 4 GB | ? raw hardware | 32 GB * | ? raw hardware | 64 GB |
| Main Camera | 5 megapixel | Yes | 13 megapixel | 1 megapixel | 16 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 720p HD | - | 1080p HD | QCIF (176 x 144) | 4K UHD |
| Front Camera | 1 megapixel | - | 5 megapixel | - | 8 megapixel |
| Weight |
3.4 oz (96g) |
3 oz (85g) |
6.07 oz (172g) |
3.46 oz (98g) |
9.03 oz (256g) |
| Dimensions |
4.83" x 2.48" x 0.47" (123 x 63 x 11.9 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.31" x 3.06" x 0.33" (160 x 78 x 8.4 mm) |
3.96" x 2.03" x 0.55" (101 x 52 x 14 mm) |
5.91" x 2.99" x 0.51" (150 x 76 x 13 mm) |
| Form Factor | Slab | Clamshell | Slab | Slide | Slab |
| Platform / OS | Android | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
CDMA: 800, 850, 1900 |
GSM: 900, 1800, 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 |
WCDMA: 4 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 25, 26, 28, 29, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO rA | GPRS | LTE (Cat 6) | WCDMA (UMTS) | LTE (Cat 13) |
| Features | |||||
| Barometer | - | - | - | - | Yes |
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | - | - | Yes | - | Yes |
| GPS / Location | n/a | - | n/a | - | n/a |
| Ruggedized | - | - | - | - | Yes |
| Water-Resistant | - | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | |||||
| Adjustable Text Size | n/a | - | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | - | - |
| Alerts | |||||
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | Yes | Yes |
| NFC | - | - | Yes * | - | Yes |
| USB | Yes | - |
Yes USB Type C |
Yes |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 a,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | Yes | n/a |
| Ringer ID | n/a | Yes | n/a | Yes | n/a |
| Voice Dialing | n/a | - | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a | Yes | n/a |
| Real-Music Ringers | n/a | - | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | n/a | - | n/a | Yes | n/a |
| Dual-SIM | - | - | - | - | Yes * |
| WAP / Web Browser | n/a | Yes | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Stylus | - | - | Yes | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- | Yes |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | - | n/a |
| EMS / Picture Messaging | n/a | Yes | n/a | Yes | n/a |
| Instant Messaging | n/a | - | n/a | Yes | n/a |
| MMS | n/a | Yes | n/a | Yes | n/a |
| Text Messaging Templates | n/a | Yes | n/a | Yes | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | Yes |
| Headphone Jack (3.5mm) | Yes | - | Yes | - | Yes |
| Music Player | n/a | - | n/a | Yes | n/a |
| Photo & Video | |||||
| DLNA | Yes | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a | Yes | n/a |
| Voice Memo | n/a | Yes | n/a | - | n/a |
| Software | |||||
| Games | n/a | Yes | n/a | Yes | n/a |
| Java (J2ME) | n/a | Yes | n/a | Yes | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung Galaxy Ring / Prevail 2 | Samsung SGH-X640 | LG Stylo 4 | Samsung SGH-T819 | CAT S61 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Ring / Prevail 2 | Samsung SGH-X640 | LG Stylo 4 | Samsung SGH-T819 | CAT S61 |
