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| Phone | Samsung SGH-A157 | Nokia N-Gage | AT&T Vista | Motorola i580 | Sharp Sidekick LX 2009 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
1.8" diag. 4 : 3 |
? |
5.5" diag. 18 : 9 |
? |
3.2" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
176 x 208 pixels LCD (Color) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? | ? |
| Battery | 800 mAh | 850 mAh | 2,450 mAh | ? | 1,250 mAh |
| Processor | ? | ? | 2 GHz MediaTek Helio A22 (MT6761V) | ? | ? |
| RAM | ? | ? | 3 GB | ? | ? |
| Storage | 256 MB | ? raw hardware | 32 GB | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 8 megapixel | 1 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | 1080p HD | ? | QVGA (320 x 240) |
| Front Camera | - | - | 5 megapixel | - | - |
| Weight |
2.99 oz (85g) |
4.83 oz (137g) |
5.51 oz (156g) |
4.9 oz (139g) |
5.78 oz (164g) |
| Dimensions |
3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm) |
5.26" x 2.74" x 0.8" (134 x 70 x 20.3 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
3.68" x 2.2" x 1.2" (93 x 56 x 30.5 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Swivel |
| Platform / OS | (proprietary) | S60 (Symbian) | Android | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
iDEN: 800 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | ? | GPRS | LTE (Cat 4) | WiDEN | HSPA 7.2 |
| Features | |||||
| Flashlight | - | - | Yes | - | - |
| GPS / Location | Yes | n/a | n/a | Yes | Yes |
| Ruggedized | - | - | - | Yes | - |
| Accessibility | |||||
| Adjustable Text Size | Yes | n/a | n/a | - | Yes |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | - | Yes | - |
| Alerts | |||||
| Extra Display | - | - | - | Yes | - |
| Ringer Profiles | Yes | Yes | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
- | Yes |
| Wi-Fi | - | - | Yes | - | - |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | Yes |
| Ringer ID | Yes | n/a | n/a | Yes | Yes |
| Voice Dialing | - | n/a | n/a | Yes | - |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes | Yes |
| Real-Music Ringers | Yes | n/a | n/a | - | Yes |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | Yes | - |
| WAP / Web Browser | Yes | n/a | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | - |
| Side Keys | - | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- | - |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | - | Yes |
| EMS / Picture Messaging | - | n/a | n/a | - | - |
| Instant Messaging | - | n/a | n/a | - | Yes |
| MMS | Yes | n/a | n/a | Yes | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes | Yes |
| Music | |||||
| FM Radio | - | Yes | - | - | - |
| Headphone Jack (3.5mm) | - | - | Yes | - | Yes |
| Music Player | - | n/a | n/a | Yes * | Yes |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | - | Yes |
| Calculator | Yes | n/a | n/a | Yes * | - |
| Calendar | Yes | n/a | n/a | Yes | Yes |
| To-Do List | Yes | n/a | n/a | - | Yes |
| Voice Memo | Yes | n/a | n/a | Yes | - |
| Software | |||||
| Games | - | n/a | n/a | Yes | Yes |
| Java (J2ME) | - | n/a | n/a | Yes | Yes |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | - | n/a | n/a | Yes | - |
| Push-To-Talk | - | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-A157 | Nokia N-Gage | AT&T Vista | Motorola i580 | Sharp Sidekick LX 2009 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-A157 | Nokia N-Gage | AT&T Vista | Motorola i580 | Sharp Sidekick LX 2009 |
