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| Phone | Samsung SGH-X640 | Samsung Galaxy S II, Epic 4G Touch | Samsung Glyde U940 | HTC G2 | Cal-Comp EZ |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
4.5" diag. 5 : 3 |
2.8" diag. 16.5 : 9 |
3.7" diag. 5 : 3 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
480 x 800 pixels (~206 ppi) AMOLED |
240 x 440 pixels (~182 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~252 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz | ? |
| Battery | 800 mAh | 1,800 mAh | 1,000 mAh | 1,300 mAh | 800 mAh |
| Processor | ? | 1.2 GHz Samsung Exynos C210 dual-core | ? | 800 MHz Qualcomm S2 MSM7230 | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | 16 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 8 megapixel | 2 megapixel | 5 megapixel | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | QVGA (320 x 240) | 720p HD | - |
| Front Camera | - | 2 megapixel | - | - | - |
| Weight |
3 oz (85g) |
4.55 oz (129g) |
4.2 oz (119g) |
6.5 oz (184g) |
2.47 oz (70g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.1" x 2.7" x 0.38" (130 x 69 x 9.6 mm) |
4.09" x 1.98" x 0.71" (104 x 50 x 18 mm) |
4.68" x 2.37" x 0.55" (119 x 60 x 14 mm) |
4.04" x 1.71" x 0.63" (103 x 43 x 16 mm) |
| Form Factor | Clamshell | Slab | Slide | Slab | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
|
| Data Technology | GPRS | WiMAX | EVDO r0 | HSPA 14.4 | 1xRTT |
| Features | |||||
| GPS / Location | - | n/a | Yes | n/a | Yes |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | Yes | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | - |
| Mobile Hotspot | - | n/a | - | n/a | - |
| USB | - |
Yes Micro-USB |
Yes | Yes |
Yes Mini-USB |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | n/a | Yes | n/a | - |
| Ringer ID | Yes | n/a | Yes | n/a | - |
| Voice Dialing | - | n/a | Yes | n/a | - |
| Customization | |||||
| Custom Graphics | Yes | n/a | Yes | n/a | - |
| Custom Ringtones | Yes | n/a | Yes | n/a | - |
| Real-Music Ringers | - | n/a | Yes | n/a | - |
| Data & Network | |||||
| Data Tethering | - | n/a | Yes | n/a | - |
| WAP / Web Browser | Yes | n/a | Yes | n/a | - |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | n/a | - |
| Side Keys | Yes | Yes | Yes | Yes | - |
| Text Keyboard, Hardware | - | - | Yes | Yes | - |
| Touch Screen | - |
Yes Capacitive |
Yes |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | - |
| Messaging | |||||
| Email Client | - | n/a | - | n/a | - |
| EMS / Picture Messaging | Yes | n/a | - | n/a | - |
| Instant Messaging | - | n/a | - | n/a | - |
| MMS | Yes | n/a | Yes | n/a | - |
| Text Messaging Templates | Yes | n/a | Yes | n/a | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes | - |
| Music Player | - | n/a | Yes | n/a | - |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| TV Output | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | n/a | Yes |
| Calculator | Yes | n/a | Yes | n/a | Yes |
| Calendar | Yes | n/a | Yes | n/a | Yes |
| To-Do List | Yes | n/a | - | n/a | Yes |
| Voice Memo | Yes | n/a | - | n/a | Yes * |
| Software | |||||
| BREW | - | n/a | Yes | n/a | - |
| Games | Yes | n/a | Yes | n/a | - |
| Java (J2ME) | Yes | n/a | - | n/a | - |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | Yes | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | - |
| * Some versions only | |||||
| Samsung SGH-X640 | Samsung Galaxy S II, Epic 4G Touch | Samsung Glyde U940 | HTC G2 | Cal-Comp EZ | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy S II, Epic 4G Touch | Samsung Glyde U940 | HTC G2 | Cal-Comp EZ |
