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| Phone | Samsung SGH-X640 | LG Spectrum | Motorola Electrify 2 | LG Optimus F7 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4.5" diag. 16 : 9 |
4.3" diag. 16 : 9 |
4.7" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~256 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | 1,830 mAh | 1,780 mAh | 2,540 mAh |
| Processor | ? | 1.5 GHz Qualcomm Snapdragon S3 | ? | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 |
| RAM | ? | 1 GB | 1 GB | 1 GB |
| Storage | ? raw hardware | 4 GB | 8 GB | 8 GB |
| Main Camera | Yes | 8 megapixel | 8 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | 1080p HD | 1080p HD | 1080p HD |
| Front Camera | - | 1 megapixel | Yes | 1 megapixel |
| Weight |
3 oz (85g) |
4.99 oz (141g) |
4.59 oz (130g) |
4.7 oz (133g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.33" x 2.71" x 0.42" (135 x 69 x 10.7 mm) |
5.06" x 2.59" x 0.33" (128 x 66 x 8.4 mm) |
5.16" x 2.71" x 0.38" (131 x 69 x 9.7 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | LTE (Cat 3) | EVDO rA | LTE (Cat 3) |
| Features | ||||
| GPS / Location | - | n/a | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | - | - | Yes |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | - | n/a | n/a | n/a |
| Photo & Video | ||||
| DLNA | - | Yes | Yes | Yes |
| Miracast | - | - | - | Yes |
| TV Output | - | Yes | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | LG Spectrum | Motorola Electrify 2 | LG Optimus F7 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | LG Spectrum | Motorola Electrify 2 | LG Optimus F7 |
