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| Phone | Samsung SGH-X640 | Samsung Galaxy S6 (GSM) | Nubia RedMagic 5S | Kyocera 3225 | Nokia Lumia 635 (CDMA) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
5.1" diag. 16 : 9 |
6.7" diag. 19.5 : 9 |
? |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
1080 x 2340 pixels (~388 ppi) AMOLED |
? LCD (Grayscale) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 144 Hz | ? | ? |
| Battery | 800 mAh | 2,550 mAh | 4,500 mAh | ? | 1,830 mAh |
| Processor | ? | 2.1 GHz Samsung Exynos 7420 | Qualcomm Snapdragon 865 | ? | 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) |
| RAM | ? | 3 GB | 8 GB * | ? | 512 MB |
| Storage | ? raw hardware | 32 GB * | 128 GB * | ? raw hardware | 8 GB |
| Main Camera | Yes | 16 megapixel | 64 megapixel | - | 5 megapixel |
| Wide Camera | - | - | 8 megapixel | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 4K UHD | 4K UHD | - | 720p HD |
| Front Camera | - | 5 megapixel | 8 megapixel | - | - |
| Weight |
3 oz (85g) |
4.87 oz (138g) |
7.76 oz (220g) |
4.23 oz (120g) |
4.73 oz (134g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
6.64" x 3.07" x 0.38" (169 x 78 x 9.8 mm) |
3.4" x 1.97" x 1.02" (86 x 50 x 25.9 mm) |
5.1" x 2.63" x 0.36" (130 x 67 x 9.1 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | (proprietary) | Windows |
| Network Bands |
GSM: 900, 1800, 1900 |
5G: 41, 78 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 26, 34, 38, 40, 41 WCDMA: 1, 2, 4, 5, 8, 19 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 25, 26, 41 WCDMA: 1, 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | LTE (Cat 6) | NR (5G) | 1xRTT | LTE (Cat 3) |
| Features | |||||
| Fingerprint Reader | - | Yes | Yes | - | - |
| Flashlight | - | Yes | Yes | - | - |
| GPS / Location | - | n/a | n/a | Yes | n/a |
| VR-ready | - | Yes | - | - | - |
| Accessibility | |||||
| Hearing Aid Compatible | - | Yes | - | - | Yes |
| Multiple Languages | Yes | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - |
Yes Classic Audio |
Yes Classic Audio |
- |
Yes Classic Audio |
| Infrared (IR) | - | Yes | - | - | - |
| MirrorLink | - | Yes | - | - | - |
| Mobile Hotspot | - | n/a | n/a | - | n/a |
| NFC | - | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
- |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 6 (802.11 a,ac,ax,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 |
| Voice Dialing | - | n/a | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | n/a | - | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | Yes | n/a |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | Yes | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | - | Yes |
| Touch Screen | - | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | - | - | - | - | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | - | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | Yes | n/a |
| Instant Messaging | - | 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 |
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes |
| Music Player | - | n/a | n/a | - | n/a |
| Stereo Speakers | - | - | Yes | - | - |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | Yes |
| Miracast | - | Yes | - | - | - |
| TV Output | - | Yes | Yes | - | - |
| Power | |||||
| Fast Charging | - | Yes | Yes | - | - |
| Wireless Charging | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | n/a |
| Calculator | Yes | n/a | n/a | Yes | n/a |
| Calendar | Yes | n/a | n/a | Yes | n/a |
| To-Do List | Yes | n/a | n/a | - | n/a |
| Voice Memo | Yes | n/a | n/a | - | n/a |
| Software | |||||
| BREW | - | n/a | n/a | Yes | n/a |
| Games | Yes | n/a | n/a | Yes | 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 | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Samsung Galaxy S6 (GSM) | Nubia RedMagic 5S | Kyocera 3225 | Nokia Lumia 635 (CDMA) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy S6 (GSM) | Nubia RedMagic 5S | Kyocera 3225 | Nokia Lumia 635 (CDMA) |
