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| Phone | Motorola W755 | Samsung SGH-A197 | Asus ZenFone 4 | Samsung SGH-X640 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
2" diag. 4 : 3 |
5.5" diag. 16 : 9 |
? |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
128 x 160 pixels (~102 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~401 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 950 mAh | 800 mAh | 3,300 mAh | 800 mAh |
| Processor | ? | ? | 2.2 GHz Qualcomm Snapdragon 630 | ? |
| RAM | ? | ? | 4 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 64 GB | ? raw hardware |
| Main Camera | 1 megapixel | Yes | 12 megapixel | Yes |
| Wide Camera | - | - | Yes | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | 4K UHD | - |
| Front Camera | - | - | 8 megapixel | - |
| Weight |
3.6 oz (102g) |
2.7 oz (77g) |
5.47 oz (155g) |
3 oz (85g) |
| Dimensions |
3.9" x 1.9" x 0.68" (99 x 48 x 17.3 mm) |
3.78" x 1.85" x 0.75" (96 x 47 x 19.1 mm) |
6.12" x 2.96" x 0.3" (155 x 75 x 7.7 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | EVDO r0 | GPRS | LTE (Cat 12) | GPRS |
| Features | ||||
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | Yes | - | n/a | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | - |
| Alerts | ||||
| Extra Display | Yes | Yes | - | - |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | - |
| NFC | - | - | Yes | - |
| USB | Yes |
Yes Micro-USB |
Yes USB Type C |
- |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | Yes |
| Voice Dialing | Yes | - | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | Yes | Yes | n/a | - |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | - |
| Dual-SIM | - | - | Yes | - |
| External Antenna Jack | Yes | - | n/a | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | - | Yes | n/a | - |
| EMS / Picture Messaging | Yes | - | n/a | Yes |
| Instant Messaging | Yes | Yes | n/a | - |
| MMS | Yes | Yes | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | Yes | - | n/a | - |
| Photo & Video | ||||
| Miracast | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | - | - | n/a | Yes |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| BREW | Yes | - | n/a | - |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | - | Yes | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Motorola W755 | Samsung SGH-A197 | Asus ZenFone 4 | Samsung SGH-X640 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola W755 | Samsung SGH-A197 | Asus ZenFone 4 | Samsung SGH-X640 |
