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| Phone | Samsung SGH-E640 | Sanyo RL-4920 | ZTE Speed | ZTE F160 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
4.5" diag. 16 : 9 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
128 x 112 pixels LCD (Color) |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 800 mAh | 1,700 mAh | 2,000 mAh | 900 mAh |
| Processor | ? | ? | 1.2 GHz Qualcomm Snapdragon 410 MSM8916 | ? |
| RAM | ? | ? | 1 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 8 GB | ? raw hardware |
| Main Camera | 1 megapixel | - | 5 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | - | 720p HD | QCIF (176 x 144) |
| Front Camera | - | - | 2 megapixel | - |
| Weight |
3.17 oz (90g) |
4.03 oz (114g) |
4.8 oz (136g) |
2.96 oz (84g) |
| Dimensions |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
4.22" x 1.85" x 0.85" (107 x 47 x 21.6 mm) |
5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm) |
4.57" x 1.93" x 0.44" (116 x 49 x 11.2 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | 1xRTT | LTE (Cat 3) | HSDPA 3.6 |
| Features | ||||
| GPS / Location | - | Yes | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | - |
| Hearing Aid Compatible | - | - | Yes | Yes |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Mobile Hotspot | - | - | n/a | - |
| USB | Yes | Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | - |
| 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 | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | - | 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 | - |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | - | n/a | - |
| EMS / Picture Messaging | Yes | - | n/a | - |
| Instant Messaging | - | - | n/a | Yes |
| MMS | Yes | - | n/a | Yes |
| Text Messaging Templates | Yes | - | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | Yes | - | n/a | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | Yes | Yes | n/a | - |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | Yes |
| Voice | ||||
| Call Screening | - | Yes | - | - |
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | - | Yes | n/a | - |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-E640 | Sanyo RL-4920 | ZTE Speed | ZTE F160 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-E640 | Sanyo RL-4920 | ZTE Speed | ZTE F160 |
