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| Phone | Motorola i450 / i455 | Motorola Sidekick Slide | ZTE Z222 / Z223 | ZTE Engage LT / Engage MT |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
2" diag. 4 : 3 |
4" diag. 5 : 3 |
| Display Resolution & Type |
130 x 130 pixels LCD (STN) |
320 x 240 pixels LCD (TFT/TFD) |
176 x 220 pixels (~141 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | ? | 900 mAh | 1,900 mAh |
| Processor | ? | 225 MHz TI OMAP 850 | QSC6270 | ? |
| RAM | ? | ? | 64 MB | 1 GB |
| Storage | ? raw hardware | ? raw hardware | 128 MB | 4 GB |
| Main Camera | - | 1 megapixel | Yes | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | ? | WVGA / 480p |
| Front Camera | - | - | - | Yes |
| Weight |
4.5 oz (128g) |
5.3 oz (150g) |
3.24 oz (92g) |
5.09 oz (144g) |
| Dimensions |
3.5" x 2" x 1.1" (89 x 51 x 27.9 mm) |
4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm) |
| Form Factor | Clamshell | Slide | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android |
| Network Bands |
iDEN: 800 |
GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | - | EDGE | HSDPA 3.6 | EVDO rA |
| Features | ||||
| GPS / Location | Yes | - | - | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | Yes | - | n/a |
| Hearing Aid Compatible | Yes | - | Yes | - |
| Multiple Languages | Yes | - | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | Yes | - |
| Ringer Profiles | Yes | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| USB | Yes | Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - | - | Yes |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Voice Dialing | Yes | - | - | 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 |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | - | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | Yes | Yes | n/a |
| Instant Messaging | - | Yes | - | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | - | Yes | n/a |
| Music | ||||
| FM Radio | - | - | Yes * | - |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | Yes | - | n/a |
| Productivity | ||||
| Alarm | - | Yes | Yes | n/a |
| Calculator | - | - | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | - | Yes | - | n/a |
| Voice Memo | 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 | Yes | - | n/a |
| Push-To-Talk | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Motorola i450 / i455 | Motorola Sidekick Slide | ZTE Z222 / Z223 | ZTE Engage LT / Engage MT | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola i450 / i455 | Motorola Sidekick Slide | ZTE Z222 / Z223 | ZTE Engage LT / Engage MT |
