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| Phone | Samsung SCH-A990 | Samsung SGH-E400 | Samsung Galaxy A21 | Samsung Galaxy Attain 4G | Samsung SGH-T239 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
6.5" diag. 20 : 9 |
3.5" diag. 5 : 3 |
? |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
128 x 144 pixels LCD (TFT/TFD) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | ? |
| Battery | 1,000 mAh | 700 mAh | 4,000 mAh | 1,650 mAh | ? |
| Processor | ? | ? | 2 GHz MediaTek Helio P35 (MT6765) | ? | ? |
| RAM | ? | ? | 3 GB | 512 MB | ? |
| Storage | ? raw hardware | ? raw hardware | 32 GB | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | - | 16 megapixel | 3 megapixel | Yes |
| Wide Camera | - | - | 8 megapixel | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | ? | - | 1080p HD | WVGA / 480p | - |
| Front Camera | - | - | 13 megapixel | 1 megapixel | - |
| Weight |
4.4 oz (125g) |
3.1 oz (88g) |
6.81 oz (193g) |
4.2 oz (119g) |
3.34 oz (95g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.46" x 1.65" x 0.89" (88 x 42 x 22.6 mm) |
6.61" x 3.02" x 0.32" (168 x 77 x 8.1 mm) |
4.57" x 2.38" x 0.46" (116 x 60 x 11.7 mm) |
3.78" x 1.87" x 0.68" (96 x 47 x 17.3 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
GSM: 850, 1900 |
| Data Technology | EVDO r0 | GPRS | LTE (Cat 6) | LTE (Cat 3) | GPRS |
| Features | |||||
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | Yes | - | Yes | - | - |
| GPS / Location | Yes | - | n/a | n/a | - |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes | - |
| Alerts | |||||
| Extra Display | Yes | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | - | - |
| NFC | - | - | Yes | - | - |
| USB | Yes | - |
Yes USB Type C |
Yes Micro-USB |
- |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes | - |
| Contacts | |||||
| Picture ID | Yes | - | n/a | n/a | Yes |
| Ringer ID | Yes | - | n/a | n/a | Yes |
| Voice Dialing | Yes | - | n/a | n/a | - |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | n/a | Yes |
| Real-Music Ringers | Yes | - | n/a | n/a | Yes |
| Data & Network | |||||
| Data Tethering | Yes | Yes | n/a | n/a | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes | - |
| Messaging | |||||
| Email Client | - | - | n/a | n/a | - |
| EMS / Picture Messaging | Yes | Yes | n/a | n/a | Yes |
| Instant Messaging | - | - | n/a | n/a | Yes |
| MMS | Yes | - | n/a | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | n/a | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes | - |
| Music Player | Yes | - | n/a | n/a | - |
| Stereo Speakers | Yes | - | - | - | - |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | - |
| TV Output | Yes | - | - | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | Yes |
| Calculator | Yes | Yes | n/a | n/a | Yes |
| Calendar | Yes | Yes | n/a | n/a | Yes |
| To-Do List | - | Yes | n/a | n/a | Yes |
| Voice Memo | Yes | - | n/a | n/a | Yes |
| Software | |||||
| BREW | Yes | - | n/a | n/a | - |
| Games | Yes | Yes | n/a | n/a | Yes |
| Java (J2ME) | - | Yes | n/a | n/a | Yes |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | - | Yes | n/a | n/a | - |
| Speaker Phone | Yes | - | Yes | Yes | Yes |
| Samsung SCH-A990 | Samsung SGH-E400 | Samsung Galaxy A21 | Samsung Galaxy Attain 4G | Samsung SGH-T239 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | Samsung SGH-E400 | Samsung Galaxy A21 | Samsung Galaxy Attain 4G | Samsung SGH-T239 |
