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| Phone | Samsung SCH-A570 | Casio G'zOne Rock | AT&T Maestro 3 | Samsung SGH-P850 / P858 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.1" diag. 4 : 3 |
6.5" diag. 20 : 9 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (STN) |
240 x 320 pixels (~190 ppi) LCD (TFT/TFD) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | ? | 1,150 mAh | 3,900 mAh | 950 mAh |
| Processor | ? | ? | 2 GHz MediaTek Helio A22 (MT6761) | ? |
| RAM | ? | ? | 3 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 32 GB | ? raw hardware |
| Main Camera | - | 2 megapixel | 13 megapixel | 3 megapixel |
| Wide Camera | - | - | 5 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | 1080p HD | ? |
| Front Camera | - | - | 5 megapixel | - |
| Weight |
3.6 oz (102g) |
4.4 oz (125g) |
6.24 oz (177g) |
4.23 oz (120g) |
| Dimensions |
3.3" x 1.8" x 0.9" (84 x 46 x 22.9 mm) |
4.1" x 2" x 0.9" (104 x 51 x 22.9 mm) |
6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm) |
3.77" x 1.86" x 0.96" (96 x 47 x 24.4 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 |
GSM: 900, 1800, 1900 |
| Data Technology | 1xRTT | EVDO rA | LTE (Cat 4) | EDGE |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes | - |
| GPS / Location | Yes | Yes | n/a | - |
| Ruggedized | - | Yes | - | - |
| Water-Resistant | - | Yes | - | - |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | - |
| Alerts | ||||
| Extra Display | Yes | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| USB | - | Yes |
Yes USB Type C |
Yes |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | ||||
| Picture ID | - | Yes | n/a | Yes |
| Ringer ID | - | Yes | n/a | Yes |
| Voice Dialing | Yes | Yes | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | Yes | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | Yes | n/a | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | Yes | n/a | Yes |
| EMS / Picture Messaging | Yes | - | n/a | - |
| Instant Messaging | - | Yes | n/a | - |
| MMS | - | Yes | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | Yes | n/a | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| TV Output | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | Yes | - | n/a | - |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| BREW | Yes | Yes | n/a | - |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | - | - | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | Yes | n/a | - |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | - | Yes | Yes | Yes |
| Samsung SCH-A570 | Casio G'zOne Rock | AT&T Maestro 3 | Samsung SGH-P850 / P858 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A570 | Casio G'zOne Rock | AT&T Maestro 3 | Samsung SGH-P850 / P858 |
