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| Phone | Samsung SGH-X507 / X506 | Samsung SGH-X820 | ZTE Z221 | ZTE Groove |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
2" diag. 4 : 3 |
3.2" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
220 x 176 pixels LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | 800 mAh | 650 mAh | 900 mAh | 1,500 mAh |
| Processor | ? | ? | ? | 800 MHz Qualcomm MSM7627A |
| RAM | ? | ? | ? | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 142 MB | 1 GB |
| Main Camera | - | 2 megapixel | Yes | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | QCIF (176 x 144) | 720p HD |
| Front Camera | - | - | - | Yes |
| Weight |
2.9 oz (82g) |
2.33 oz (66g) |
3.24 oz (92g) |
4.5 oz (128g) |
| Dimensions |
3.3" x 1.75" x 0.75" (84 x 44 x 19.1 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
4.67" x 2.46" x 0.55" (119 x 62 x 14 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | EDGE | EDGE | HSDPA 3.6 | EVDO rA |
| Features | ||||
| GPS / Location | - | - | Yes | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | - |
| Alerts | ||||
| Extra Display | Yes | - | Yes | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | - | n/a |
| USB | Yes | Yes | Yes |
Yes Micro-USB |
| Wi-Fi | - | - | - | Yes |
| Contacts | ||||
| Picture ID | Yes | Yes | - | n/a |
| Ringer ID | Yes | Yes | - | n/a |
| Voice Dialing | - | - | - | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | Yes | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | Yes | - | - | n/a |
| External Antenna Jack | - | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | Yes * | Yes | Yes | n/a |
| EMS / Picture Messaging | Yes | Yes | - | n/a |
| Instant Messaging | Yes | - | Yes | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | - | - | n/a |
| Photo & Video | ||||
| TV Output | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | - | Yes | - | n/a |
| Voice Memo | Yes | Yes | Yes | n/a |
| Software | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-X507 / X506 | Samsung SGH-X820 | ZTE Z221 | ZTE Groove | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X507 / X506 | Samsung SGH-X820 | ZTE Z221 | ZTE Groove |
