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| Phone | Samsung SGH-X640 | LG PM-225 | LG VX-8550 Chocolate | LG K4 / Optimus Zone 3 / Rebel | LG VX-8500 Chocolate |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? |
4.5" diag. 16 : 9 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
240 x 320 pixels LCD (TFT/TFD) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz | ? |
| Battery | 800 mAh | 1,000 mAh | 800 mAh | 1,940 mAh | 800 mAh |
| Processor | ? | ? | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? |
| RAM | ? | ? | ? | 1.5 GB | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB * | ? raw hardware |
| Main Camera | Yes | Yes | 1 megapixel | 5 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | QCIF (176 x 144) | 720p HD | QCIF (176 x 144) |
| Front Camera | - | - | - | 2 megapixel | - |
| Weight |
3 oz (85g) |
3.35 oz (95g) |
3.24 oz (92g) |
3.99 oz (113g) |
3.53 oz (100g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.53" x 1.76" x 0.93" (90 x 45 x 23.6 mm) |
3.85" x 1.87" x 0.67" (98 x 47 x 17 mm) |
5.19" x 2.62" x 0.35" (132 x 67 x 8.9 mm) |
3.8" x 1.88" x 0.69" (97 x 48 x 17.5 mm) |
| Form Factor | Clamshell | Clamshell | Slide | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
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| Data Technology | GPRS | 1xRTT | EVDO r0 | LTE (Cat 3) | EVDO r0 |
| Features | |||||
| Flashlight | - | - | - | Yes | - |
| GPS / Location | - | Yes | Yes | n/a | Yes |
| Accessibility | |||||
| Adjustable Text Size | - | - | - | n/a | - |
| Hearing Aid Compatible | - | - |
Yes M4 (very compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | - | n/a | - |
| USB | - | Yes | Yes |
Yes Micro-USB |
- |
| Wi-Fi | - | - | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | Yes | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | Yes | n/a | Yes |
| Voice Dialing | - | Yes | Yes | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | - | Yes | n/a | Yes |
| Data & Network | |||||
| Data Tethering | - | - | Yes | n/a | Yes |
| External Antenna Jack | - | - | - | n/a | Yes |
| WAP / Web Browser | Yes | Yes | Yes | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - | - |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | - | - | n/a | - |
| EMS / Picture Messaging | Yes | - | - | n/a | - |
| Instant Messaging | - | - | - | 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 | Yes |
| Photo & Video | |||||
| Miracast | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | Yes | n/a | Yes |
| To-Do List | Yes | - | - | n/a | - |
| Voice Memo | Yes | Yes | Yes | n/a | Yes |
| Software | |||||
| BREW | - | - | Yes | n/a | Yes |
| Games | Yes | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | - | n/a | - |
| Voice | |||||
| HD Voice | - | - | - | Yes * | - |
| Headset Jack (2.5 mm) | Yes | Yes | Yes | n/a | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes * |
| * Some versions only | |||||
| Samsung SGH-X640 | LG PM-225 | LG VX-8550 Chocolate | LG K4 / Optimus Zone 3 / Rebel | LG VX-8500 Chocolate | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | LG PM-225 | LG VX-8550 Chocolate | LG K4 / Optimus Zone 3 / Rebel | LG VX-8500 Chocolate |
