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| Phone | Samsung M520 | Samsung SCH-A610 | LG K4 / Optimus Zone 3 / Rebel | Siemens SL55 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.1" diag. 4 : 3 |
? |
4.5" diag. 16 : 9 |
? |
| Display Resolution & Type |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
101 x 80 pixels LCD (STN) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | ? | 1,300 mAh | 1,940 mAh | 500 mAh |
| Processor | ? | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? |
| RAM | ? | ? | 1.5 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB * | ? raw hardware |
| Main Camera | 1 megapixel | Yes | 5 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | 720p HD | - |
| Front Camera | - | - | 2 megapixel | - |
| Weight |
2.75 oz (78g) |
4.23 oz (120g) |
3.99 oz (113g) |
2.79 oz (79g) |
| Dimensions |
4.01" x 2.04" x 0.5" (102 x 52 x 12.7 mm) |
3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm) |
5.19" x 2.62" x 0.35" (132 x 67 x 8.9 mm) |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
| Form Factor | Slide | Clamshell | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
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| Data Technology | EVDO r0 | 1xRTT | LTE (Cat 3) | GPRS |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | Yes | Yes | n/a | - |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | - |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | - |
| Alerts | ||||
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| Infrared (IR) | - | - | - | Yes |
| Mobile Hotspot | - | - | n/a | - |
| USB | Yes | - |
Yes Micro-USB |
- |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | Yes |
| Voice Dialing | Yes | Yes | n/a | Yes |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | - | n/a | - |
| Data & Network | ||||
| Data Tethering | Yes | Yes | n/a | Yes |
| 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 | - | - | n/a | Yes |
| EMS / Picture Messaging | - | Yes | n/a | Yes |
| Instant Messaging | - | - | n/a | - |
| MMS | - | 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 | - |
| 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 | 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 | ||||
| HD Voice | - | - | Yes * | - |
| Headset Jack (2.5 mm) | - | Yes | n/a | - |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Samsung M520 | Samsung SCH-A610 | LG K4 / Optimus Zone 3 / Rebel | Siemens SL55 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung M520 | Samsung SCH-A610 | LG K4 / Optimus Zone 3 / Rebel | Siemens SL55 |
