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| Phone | Samsung SGH-X640 | BLU G90 Pro | LG Stylo 4 | BLU Vivo XI |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Not yet released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
6.5" diag. 19.5 : 9 |
6.2" diag. 18 : 9 |
5.9" diag. 19 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2340 pixels (~396 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~390 ppi) LCD (TFT/TFD) |
720 x 1520 pixels (~285 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | 5,000 mAh | 3,300 mAh | 3,000 mAh |
| Processor | ? | 2 GHz MediaTek Helio G90T | 1.8 GHz Qualcomm Snapdragon 450 | 2 GHz MediaTek Helio P22 |
| RAM | ? | 4 GB | 2 GB * | 3 GB |
| Storage | ? raw hardware | 128 GB | 32 GB * | 32 GB |
| Main Camera | Yes | 48 megapixel | 13 megapixel | 16 megapixel |
| Wide Camera | - | 8 megapixel | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | 4K UHD | 1080p HD | 1080p HD |
| Front Camera | - | 32 megapixel | 5 megapixel | 16 megapixel |
| Weight |
3 oz (85g) |
7.58 oz (215g) |
6.07 oz (172g) |
6.6 oz (187g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.38" x 3.03" x 0.4" (162 x 77 x 10.2 mm) |
6.31" x 3.06" x 0.33" (160 x 78 x 8.4 mm) |
5.89" x 2.87" x 0.31" (150 x 73 x 7.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 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 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | LTE (Cat 6) | LTE (Cat 6) | LTE (Cat 6) |
| Features | ||||
| Fingerprint Reader | - |
Yes stand-alone |
Yes stand-alone |
Yes stand-alone |
| Flashlight | - | Yes | Yes | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| NFC | - | - | Yes * | - |
| USB | - |
Yes USB Type C |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Data & Network | ||||
| Dual-SIM | - | Yes | - | Yes |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Stylus | - | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| FM Radio | - | Yes | Yes | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | Yes | - | Yes |
| Wireless Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-X640 | BLU G90 Pro | LG Stylo 4 | BLU Vivo XI | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | BLU G90 Pro | LG Stylo 4 | BLU Vivo XI |
