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| Phone | Samsung SGH-X640 | Microsoft Lumia 950 XL | Samsung Ace SPH-i325 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
5.7" diag. 16 : 9 |
2.3" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1440 x 2560 pixels (~515 ppi) AMOLED |
320 x 240 pixels (~174 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 800 mAh | 3,340 mAh | 1,300 mAh |
| Processor | ? | 2 GHz Qualcomm Snapdragon 810 (MSM8994) | 416 MHz PXA270 |
| RAM | ? | 3 GB | ? |
| Storage | ? raw hardware | 32 GB | ? raw hardware |
| Main Camera | Yes | 20 megapixel | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | 4K UHD | QVGA (320 x 240) |
| Front Camera | - | 5 megapixel | - |
| Weight |
3 oz (85g) |
5.82 oz (165g) |
3.9 oz (111g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.98" x 3.09" x 0.32" (152 x 78 x 8.1 mm) |
4.65" x 2.32" x 0.46" (118 x 59 x 11.7 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | Windows | Windows Mobile Standard |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 40 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 GSM: 900, 1800 |
| Data Technology | GPRS | LTE (Cat 6) | EVDO r0 |
| Features | |||
| Flashlight | - | Yes | - |
| GPS / Location | - | n/a | n/a |
| Accessibility | |||
| Adjustable Text Size | - | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a |
| NFC | - | Yes | - |
| USB | - |
Yes USB Type C |
Yes |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | - | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a |
| Data & Network | |||
| Data Tethering | - | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | n/a | n/a |
| EMS / Picture Messaging | Yes | 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 | - |
| Music Player | - | n/a | n/a |
| Photo & Video | |||
| DLNA | - | Yes | - |
| Miracast | - | Yes | - |
| TV Output | - | Yes | - |
| Power | |||
| Fast Charging | - | Yes | - |
| Wireless Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | 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 | |||
| HD Voice | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes |
| Samsung SGH-X640 | Microsoft Lumia 950 XL | Samsung Ace SPH-i325 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Microsoft Lumia 950 XL | Samsung Ace SPH-i325 |
