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| Phone | Samsung SGH-X640 | Nokia 6650 fold | Motorola V878 | BLU G90 Pro |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.2" diag. 4 : 3 |
? |
6.5" diag. 19.5 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2340 pixels (~396 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | 800 mAh | 1,500 mAh | ? | 5,000 mAh |
| Processor | ? | 369 MHz ARM 11 | ? | 2 GHz MediaTek Helio G90T |
| RAM | ? | ? | ? | 4 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 128 GB |
| Main Camera | Yes | 2 megapixel | Yes | 48 megapixel |
| Wide Camera | - | - | - | 8 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | ? | 4K UHD |
| Front Camera | - | - | - | 32 megapixel |
| Weight |
3 oz (85g) |
3.95 oz (112g) |
2.82 oz (80g) |
7.58 oz (215g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.93" x 1.86" x 0.64" (100 x 47 x 16.2 mm) |
3.23" x 1.65" x 0.85" (82 x 42 x 21.6 mm) |
6.38" x 3.03" x 0.4" (162 x 77 x 10.2 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Slab |
| Platform / OS | (proprietary) | S60 (Symbian) | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
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 |
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| Data Technology | GPRS | HSDPA 3.6 | GPRS | LTE (Cat 6) |
| Features | ||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | Yes |
| GPS / Location | - | n/a | - | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
- | - |
| Multiple Languages | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | - | - | Yes |
| Alerts | ||||
| Extra Display | - | Yes | Yes | - |
| Ringer Profiles | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| USB | - |
Yes Micro-USB |
Yes |
Yes USB Type C |
| Wi-Fi | - | - | - |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | Yes | n/a |
| Voice Dialing | - | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | - | n/a | Yes | n/a |
| Dual-SIM | - | - | - | Yes |
| 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 |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | n/a | - | n/a |
| EMS / Picture Messaging | Yes | n/a | Yes | n/a |
| Instant Messaging | - | n/a | - | n/a |
| MMS | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | - | n/a |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | n/a | - | n/a |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Wireless Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | n/a |
| Calculator | Yes | n/a | Yes | n/a |
| Calendar | Yes | n/a | Yes | n/a |
| To-Do List | Yes | n/a | - | n/a |
| Voice Memo | Yes | n/a | Yes | n/a |
| Software | ||||
| Games | Yes | n/a | Yes | n/a |
| Java (J2ME) | Yes | n/a | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | n/a | - | n/a |
| Speaker Phone | Yes | Yes | - | Yes |
| Samsung SGH-X640 | Nokia 6650 fold | Motorola V878 | BLU G90 Pro | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Nokia 6650 fold | Motorola V878 | BLU G90 Pro |
