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| Phone | Samsung SCH-A990 | ZTE Aspect | Microsoft Surface Duo 2 | Sony Ericsson T310 | Samsung SGH-X640 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
8.3" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
2688 x 1892 pixels (~396 ppi) AMOLED |
101 x 80 pixels LCD (STN) |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 90 Hz | ? | ? |
| Battery | 1,000 mAh | 1,000 mAh | 4,449 mAh | ? | 800 mAh |
| Processor | ? | 230 MHz Qualcomm QSC6270 | Qualcomm Snapdragon 888 | ? | ? |
| RAM | ? | 128 MB | 8 GB | ? | ? |
| Storage | ? raw hardware | 256 MB | 128 GB * | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | 2 megapixel | 12 megapixel | - | Yes |
| Wide Camera | - | - | 16 megapixel | - | - |
| Tele Camera | - | - | 12 megapixel | - | - |
| Video Capture | ? | QVGA (320 x 240) | 4K UHD | - | - |
| Front Camera | - | - | 12 megapixel | - | - |
| Weight |
4.4 oz (125g) |
3.7 oz (105g) |
10.02 oz (284g) |
3.42 oz (97g) |
3 oz (85g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.55" x 2.4" x 0.45" (116 x 61 x 11.4 mm) |
5.72" x 3.63" x 0.43" (145 x 92 x 11 mm) |
4.09" x 1.93" x 0.75" (104 x 49 x 19.1 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
| Form Factor | Clamshell | Slab | Unique | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
WCDMA: 2, 4 GSM: 850, 900, 1800, 1900 |
5G: 1, 2, 3, 5, 7, 20, 25, 28, 38, 41, 66, 71, 77-C, 78, 257, 260, 261 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | EVDO r0 | WCDMA (UMTS) | NR (5G) | GPRS | GPRS |
| Features | |||||
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | Yes | - | Yes | - | - |
| GPS / Location | Yes | Yes | n/a | Yes | - |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- | - |
| Multiple Languages | Yes | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | - | - |
| Alerts | |||||
| Extra Display | Yes | - | - | - | - |
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | - | - |
| Infrared (IR) | - | - | - | Yes | - |
| NFC | - | - | Yes | - | - |
| USB | Yes |
Yes Micro-USB |
Yes USB Type C |
Yes | - |
| Wi-Fi | - | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- | - |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | Yes | Yes |
| Ringer ID | Yes | Yes | n/a | Yes | Yes |
| Voice Dialing | Yes | - | n/a | - | - |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | Yes | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes | Yes |
| Real-Music Ringers | Yes | Yes | n/a | - | - |
| Data & Network | |||||
| Data Tethering | Yes | - | n/a | Yes | - |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Touch Screen | - | - |
Yes Capacitive |
- | - |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | - | - |
| Messaging | |||||
| Email Client | - | Yes | n/a | Yes | - |
| EMS / Picture Messaging | Yes | - | n/a | Yes | Yes |
| MMS | Yes | Yes | n/a | Yes | Yes |
| Text Messaging Templates | Yes | Yes | n/a | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | - | - |
| Music Player | Yes | Yes | n/a | - | - |
| Stereo Speakers | Yes | - | Yes | - | - |
| Photo & Video | |||||
| Miracast | - | - | Yes | - | - |
| TV Output | Yes | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | Yes | Yes |
| Calculator | Yes | Yes | n/a | Yes | Yes |
| Calendar | Yes | Yes | n/a | Yes | Yes |
| To-Do List | - | - | n/a | - | Yes |
| Voice Memo | Yes | Yes | n/a | Yes | Yes |
| Software | |||||
| BREW | Yes | - | n/a | - | - |
| Games | Yes | Yes | n/a | Yes | Yes |
| Java (J2ME) | - | Yes | n/a | - | Yes |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | - | - | n/a | - | Yes |
| Speaker Phone | Yes | Yes | Yes | - | Yes |
| Samsung SCH-A990 | ZTE Aspect | Microsoft Surface Duo 2 | Sony Ericsson T310 | Samsung SGH-X640 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | ZTE Aspect | Microsoft Surface Duo 2 | Sony Ericsson T310 | Samsung SGH-X640 |
