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| Phone | Samsung SCH-R211 | Microsoft Surface Duo 2 | Cal-Comp EZ | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.5" diag. 1 : 1 |
8.3" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
128 x 128 pixels (~121 ppi) LCD (STN) |
2688 x 1892 pixels (~396 ppi) AMOLED |
128 x 128 pixels LCD (STN) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 90 Hz | ? | ? |
| Battery | 800 mAh | 4,449 mAh | 800 mAh | 1,000 mAh |
| Processor | ? | Qualcomm Snapdragon 888 | ? | ? |
| RAM | ? | 8 GB | ? | ? |
| Storage | ? raw hardware | 128 GB * | ? raw hardware | ? raw hardware |
| Main Camera | - | 12 megapixel | - | 3 megapixel |
| Wide Camera | - | 16 megapixel | - | - |
| Tele Camera | - | 12 megapixel | - | - |
| Video Capture | - | 4K UHD | - | ? |
| Front Camera | - | 12 megapixel | - | - |
| Weight |
2.73 oz (77g) |
10.02 oz (284g) |
2.47 oz (70g) |
4.4 oz (125g) |
| Dimensions |
4.07" x 1.77" x 0.59" (103 x 45 x 15 mm) |
5.72" x 3.63" x 0.43" (145 x 92 x 11 mm) |
4.04" x 1.71" x 0.63" (103 x 43 x 16 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Slab | Unique | Slab | Clamshell |
| Platform / OS | (proprietary) | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1700, 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 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | 1xRTT | NR (5G) | 1xRTT | EVDO r0 |
| Features | ||||
| Fingerprint Reader | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | - | Yes |
| GPS / Location | Yes | n/a | Yes | Yes |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | - | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| NFC | - | Yes | - | - |
| USB | - |
Yes USB Type C |
Yes Mini-USB |
Yes |
| Wi-Fi | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | Yes | n/a | - | Yes |
| Ringer ID | Yes | n/a | - | Yes |
| Voice Dialing | - | n/a | - | Yes |
| Customization | ||||
| Custom Graphics | Yes | n/a | - | Yes |
| Custom Ringtones | Yes | n/a | - | Yes |
| Real-Music Ringers | - | n/a | - | Yes |
| Data & Network | ||||
| Data Tethering | - | n/a | - | Yes |
| Dual-SIM | - | Yes | - | - |
| WAP / Web Browser | Yes | n/a | - | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | - | Yes |
| Side Keys | Yes | Yes | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| EMS / Picture Messaging | - | n/a | - | Yes |
| MMS | - | n/a | - | Yes |
| Text Messaging Templates | Yes | n/a | Yes | Yes |
| Music | ||||
| Music Player | - | n/a | - | Yes |
| Stereo Speakers | - | Yes | - | Yes |
| Photo & Video | ||||
| Miracast | - | Yes | - | - |
| TV Output | - | Yes | - | Yes |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | - | n/a | Yes | - |
| Voice Memo | - | n/a | Yes * | Yes |
| Software | ||||
| BREW | Yes | n/a | - | Yes |
| Games | Yes | n/a | - | Yes |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | n/a | Yes | - |
| Speaker Phone | Yes | Yes | - | Yes |
| * Some versions only | ||||
| Samsung SCH-R211 | Microsoft Surface Duo 2 | Cal-Comp EZ | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-R211 | Microsoft Surface Duo 2 | Cal-Comp EZ | Samsung SCH-A990 |
