Compare Phones
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| Phone | Samsung SGH-X640 | Kyocera Echo | Sony Ericsson T68i | Motorola i450 / i455 | Motorola i80s |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
3.5" diag. 5 : 3 |
? | ? | ? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
480 x 800 pixels (~267 ppi) LCD (TFT/TFD) |
101 x 80 pixels LCD (STN) |
130 x 130 pixels LCD (STN) |
? |
| Display Refresh | ? | 60 Hz | ? | ? | ? |
| Battery | 800 mAh | 1,370 mAh | 700 mAh | ? | ? |
| Processor | ? | 1 GHz Qualcomm Snapdragon S1 QSD8650 | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 5 megapixel | - | - | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 720p HD | - | - | - |
| Front Camera | - | - | - | - | - |
| Weight |
3 oz (85g) |
6.8 oz (193g) |
2.96 oz (84g) |
4.5 oz (128g) |
4 oz (113g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.53" x 2.22" x 0.68" (115 x 56 x 17.2 mm) |
3.94" x 1.89" x 0.79" (100 x 48 x 20.1 mm) |
3.5" x 2" x 1.1" (89 x 51 x 27.9 mm) |
5.4" x 2" x 1" (137 x 51 x 25.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
iDEN: 800 |
iDEN: 800 |
| Data Technology | GPRS | EVDO rA | GPRS | - | - |
| Features | |||||
| GPS / Location | - | n/a | - | Yes | - |
| Accessibility | |||||
| Hearing Aid Compatible | - | Yes | - | Yes | - |
| Multiple Languages | Yes | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | - | Yes | Yes |
| Alerts | |||||
| Extra Display | - | - | - | Yes | - |
| Ringer Profiles | - | - | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - |
Yes Classic Audio |
Yes Classic Audio |
- | - |
| Infrared (IR) | - | - | Yes | - | - |
| Mobile Hotspot | - | n/a | - | - | - |
| USB | - | Yes | - | Yes | - |
| Wi-Fi | - |
Yes 802.11 b,g |
- | - | - |
| Contacts | |||||
| Picture ID | Yes | n/a | Yes | Yes | - |
| Ringer ID | Yes | n/a | Yes | Yes | - |
| Voice Dialing | - | n/a | Yes | Yes | Yes |
| Customization | |||||
| Custom Graphics | Yes | n/a | Yes | Yes | - |
| Custom Ringtones | Yes | n/a | Yes | Yes | - |
| Real-Music Ringers | - | n/a | - | Yes * | - |
| Data & Network | |||||
| Data Tethering | - | n/a | Yes | Yes | Yes |
| WAP / Web Browser | Yes | n/a | Yes | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | Yes | - | - | - |
| Memory | |||||
| Memory Card Slot | - | Yes | - | - | - |
| Messaging | |||||
| Email Client | - | n/a | Yes | - | - |
| EMS / Picture Messaging | Yes | n/a | Yes | - | - |
| Instant Messaging | - | n/a | - | - | - |
| MMS | Yes | n/a | Yes | Yes | - |
| Text Messaging Templates | Yes | n/a | Yes | Yes | - |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | - | - |
| Music Player | - | n/a | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | - | Yes |
| Calculator | Yes | n/a | Yes | - | Yes |
| Calendar | Yes | n/a | Yes | Yes | Yes |
| To-Do List | Yes | n/a | Yes | - | - |
| Voice Memo | Yes | n/a | Yes | Yes | Yes |
| Software | |||||
| Games | Yes | n/a | Yes | Yes | Yes |
| Java (J2ME) | Yes | n/a | - | Yes | Yes |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | - | Yes | Yes |
| Push-To-Talk | - | - | - | Yes | Yes |
| Speaker Phone | Yes | Yes | - | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Kyocera Echo | Sony Ericsson T68i | Motorola i450 / i455 | Motorola i80s | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Kyocera Echo | Sony Ericsson T68i | Motorola i450 / i455 | Motorola i80s |











