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| Phone | Samsung SGH-A657 | BlackBerry Key2 | Samsung Heat |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
4.5" diag. 5 : 3 |
? |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
1080 x 1620 pixels (~433 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? |
| Battery | 1,420 mAh | 3,500 mAh | 800 mAh |
| Processor | ? | 2.2 GHz Qualcomm Snapdragon 660 | ? |
| RAM | ? | 6 GB | ? |
| Storage | ? raw hardware | 64 GB * | ? raw hardware |
| Main Camera | - | 12 megapixel | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | 12 megapixel | - |
| Video Capture | - | 4K UHD | ? |
| Front Camera | - | 8 megapixel | - |
| Weight |
4.34 oz (123g) |
5.93 oz (168g) |
3.17 oz (90g) |
| Dimensions |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
5.96" x 2.82" x 0.33" (151 x 72 x 8.4 mm) |
3.6" x 1.8" x 0.6" (91 x 46 x 15.2 mm) |
| Form Factor | Slab | Slab | Slide |
| Platform / OS | (proprietary) | Android | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | HSDPA 3.6 | LTE (Cat 11) | EVDO r0 |
| Features | |||
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | Yes | Yes | - |
| GPS / Location | Yes | n/a | Yes |
| Ruggedized | Yes | - | - |
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
| Multiple Languages | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| NFC | - | 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 |
| Customization | |||
| Custom Graphics | Yes | n/a | Yes |
| Custom Ringtones | Yes | n/a | Yes |
| Real-Music Ringers | Yes | n/a | Yes |
| Data & Network | |||
| Data Tethering | Yes | n/a | - |
| WAP / Web Browser | Yes | n/a | Yes |
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | Yes | n/a | - |
| Instant Messaging | Yes | n/a | - |
| MMS | Yes | n/a | Yes |
| Text Messaging Templates | Yes | n/a | Yes |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | Yes | n/a | Yes |
| Photo & Video | |||
| TV Output | - | Yes | - |
| Power | |||
| Fast Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | Yes |
| Calculator | Yes | n/a | Yes |
| Calendar | Yes | n/a | Yes |
| To-Do List | Yes | n/a | Yes |
| Voice Memo | Yes | n/a | Yes |
| Software | |||
| Games | Yes | n/a | Yes |
| Java (J2ME) | Yes | n/a | - |
| Voice | |||
| HD Voice | - | Yes | - |
| Push-To-Talk | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes |
| Samsung SGH-A657 | BlackBerry Key2 | Samsung Heat | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-A657 | BlackBerry Key2 | Samsung Heat |
