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| Phone | Samsung SGH-X640 | Samsung SCH-A610 | Coolpad Conjr | Nubia Red Magic 3 / 3S |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
5" diag. 16 : 9 |
6.7" diag. 19.5 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~388 ppi) AMOLED |
| Display Refresh | ? | ? | 60 Hz | 90 Hz |
| Battery | 800 mAh | 1,300 mAh | 2,500 mAh | 5,000 mAh |
| Processor | ? | ? | 1 GHz MediaTek MT6735 | Qualcomm Snapdragon 855+ |
| RAM | ? | ? | 3 GB | 8 GB * |
| Storage | ? raw hardware | ? raw hardware | 16 GB | 128 GB * |
| Main Camera | Yes | Yes | 13 megapixel | 48 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | 1080p HD | 4K UHD |
| Front Camera | - | - | 8 megapixel | 16 megapixel |
| Weight |
3 oz (85g) |
4.23 oz (120g) |
5.14 oz (146g) |
7.58 oz (215g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm) |
5.72" x 2.86" x 0.35" (145 x 73 x 8.8 mm) |
6.76" x 3.09" x 0.38" (172 x 79 x 9.7 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 7, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8, 19 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | 1xRTT | LTE (Cat 4) | LTE (Cat 9) |
| Features | ||||
| Fingerprint Reader | - | - |
Yes stand-alone |
Yes stand-alone |
| Flashlight | - | - | Yes | Yes |
| GPS / Location | - | Yes | n/a | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | - | Yes | Yes |
| USB | - | - |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | - | Yes | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | Yes | n/a | n/a |
| Dual-SIM | - | - | Yes | Yes |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | Yes | - |
| Messaging | ||||
| EMS / Picture Messaging | Yes | Yes | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| To-Do List | Yes | Yes | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a |
| Software | ||||
| BREW | - | Yes | n/a | n/a |
| Games | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | - | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | Yes | n/a | n/a |
| Speaker Phone | Yes | - | Yes | Yes |
| Samsung SGH-X640 | Samsung SCH-A610 | Coolpad Conjr | Nubia Red Magic 3 / 3S | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SCH-A610 | Coolpad Conjr | Nubia Red Magic 3 / 3S |
