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| Phone | Samsung SGH-X400 | Samsung SGH-X820 | ZTE Speed |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
220 x 176 pixels LCD (TFT/TFD) |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | 620 mAh | 650 mAh | 2,000 mAh |
| Processor | ? | ? | 1.2 GHz Qualcomm Snapdragon 410 MSM8916 |
| RAM | ? | ? | 1 GB |
| Storage | ? raw hardware | ? raw hardware | 8 GB |
| Main Camera | - | 2 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | ? | 720p HD |
| Front Camera | - | - | 2 megapixel |
| Weight |
3.17 oz (90g) |
2.33 oz (66g) |
4.8 oz (136g) |
| Dimensions |
3.39" x 1.81" x 0.8" (86 x 46 x 20.3 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
5.3" x 2.6" x 0.4" (135 x 66 x 10.2 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 |
| Data Technology | GPRS | EDGE | LTE (Cat 3) |
| Features | |||
| GPS / Location | - | - | n/a |
| Accessibility | |||
| Adjustable Text Size | - | - | n/a |
| Hearing Aid Compatible | - | - |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Extra Display | Yes | - | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Infrared (IR) | Yes | - | - |
| Mobile Hotspot | - | - | n/a |
| USB | - | Yes |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | n/a |
| Voice Dialing | - | - | n/a |
| Customization | |||
| Custom Graphics | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a |
| Real-Music Ringers | - | Yes | n/a |
| Data & Network | |||
| Data Tethering | - | - | n/a |
| External Antenna Jack | - | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | - | Yes | n/a |
| EMS / Picture Messaging | Yes | Yes | n/a |
| Instant Messaging | - | - | n/a |
| MMS | - | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | - | - | n/a |
| Photo & Video | |||
| TV Output | - | Yes | - |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| To-Do List | Yes | Yes | n/a |
| Voice Memo | - | Yes | n/a |
| Software | |||
| Games | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | n/a |
| Voice | |||
| HD Voice | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | - | n/a |
| Speaker Phone | - | Yes | Yes |
| Samsung SGH-X400 | Samsung SGH-X820 | ZTE Speed | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X400 | Samsung SGH-X820 | ZTE Speed |
