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| Phone | Samsung SGH-X640 | Motorola V551 / V330 / V547 / V555 / V557 | ZTE Z331 | Huawei Mate 10 Pro | HTC EVO Shift 4G |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Not yet released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
2.4" diag. 4 : 3 |
6" diag. 18 : 9 |
3.6" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) AMOLED |
480 x 800 pixels (~259 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz | 60 Hz |
| Battery | 800 mAh | 820 mAh | 950 mAh | 4,000 mAh | 1,500 mAh |
| Processor | ? | ? | ? | 2.4 GHz Huawei Kirin 970 | 800 MHz Qualcomm S2 MSM7630 |
| RAM | ? | ? | ? | 6 GB * | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 128 GB * | ? raw hardware |
| Main Camera | Yes | Yes | 3 megapixel | 12 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | ? | QCIF (176 x 144) | 4K UHD | 720p HD |
| Front Camera | - | - | - | 8 megapixel | - |
| Weight |
3 oz (85g) |
4.23 oz (120g) |
4 oz (113g) |
6.28 oz (178g) |
5.87 oz (166g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
6.07" x 2.93" x 0.31" (154 x 75 x 7.9 mm) |
4.6" x 2.32" x 0.61" (117 x 59 x 15.5 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G WiMAX: 41 CDMA: 850, 1900 |
| Data Technology | GPRS | EDGE | HSDPA 3.6 | LTE (Cat 18) | WiMAX |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | - | Yes | Yes |
| GPS / Location | - | - | Yes | n/a | n/a |
| Water-Resistant | - | - | - |
Yes IPX7 (snorkeling) |
- |
| Accessibility | |||||
| Hearing Aid Compatible | - | - | Yes | - | Yes |
| Multiple Languages | Yes | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | Yes | Yes | - | - |
| Ringer Profiles | - | Yes | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | - | - | - | Yes | - |
| Mobile Hotspot | - | - | - | n/a | n/a |
| NFC | - | - | - | Yes | - |
| USB | - | Yes |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | Yes | n/a | n/a |
| Voice Dialing | - | Yes | - | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a | n/a |
| Real-Music Ringers | - | Yes | Yes | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | Yes | n/a | n/a |
| Dual-SIM | - | - | - | Yes * | - |
| WAP / Web Browser | Yes | Yes | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | - | - | - | Yes | Yes |
| Memory | |||||
| Memory Card Slot | - | - | Yes | - | Yes |
| Messaging | |||||
| Email Client | - | Yes | Yes | n/a | n/a |
| EMS / Picture Messaging | Yes | Yes | - | n/a | n/a |
| Instant Messaging | - | Yes | Yes | n/a | n/a |
| MMS | Yes | Yes | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a | n/a |
| Music | |||||
| FM Radio | - | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | - | Yes |
| Music Player | - | - | Yes | n/a | n/a |
| Photo & Video | |||||
| TV Output | - | - | - | Yes | - |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | Yes | n/a | n/a |
| To-Do List | Yes | - | - | n/a | n/a |
| Voice Memo | Yes | Yes | Yes | n/a | n/a |
| Software | |||||
| Games | Yes | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | Yes | 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 | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Motorola V551 / V330 / V547 / V555 / V557 | ZTE Z331 | Huawei Mate 10 Pro | HTC EVO Shift 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Motorola V551 / V330 / V547 / V555 / V557 | ZTE Z331 | Huawei Mate 10 Pro | HTC EVO Shift 4G |
