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| Phone | Motorola Charm | Ericsson R278d | Samsung Galaxy Z Fold2 | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.8" diag. 4 : 3 |
? |
7.6" diag. 4 : 3 |
? |
| Display Resolution & Type |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
101 x 40 pixels |
1768 x 2208 pixels (~372 ppi) AMOLED |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 1,170 mAh | ? | 4,500 mAh | 1,000 mAh |
| Processor | 720 MHz TI OMAP3410 | ? | 3.1 GHz Qualcomm Snapdragon 865+ | ? |
| RAM | ? | ? | 12 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 256 GB | ? raw hardware |
| Main Camera | 3 megapixel | - | 12 megapixel | 3 megapixel |
| Wide Camera | - | - | 12 megapixel | - |
| Tele Camera | - | - | 12 megapixel | - |
| Video Capture | ? | - | 4K UHD | ? |
| Front Camera | - | - | 10 megapixel | - |
| Weight |
3.88 oz (110g) |
9.28 oz (263g) |
9.95 oz (282g) |
4.4 oz (125g) |
| Dimensions |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
6.27" x 2.68" x 0.66" (159 x 68 x 16.8 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Slab | Slab | Foldable | Clamshell |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
5G: 2, 5, 25, 41, 66, 71, 260, 261 4G LTE: 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
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| Data Technology | HSDPA 3.6 | - | NR (5G) | EVDO r0 |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | Yes |
| GPS / Location | n/a | - | n/a | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| NFC | - | - | Yes | - |
| USB |
Yes Micro-USB |
- |
Yes USB Type C |
Yes |
| UWB | - | - | Yes | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | - | n/a | Yes |
| Ringer ID | n/a | - | n/a | Yes |
| Voice Dialing | n/a | - | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | - | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | Yes |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | n/a | - |
| EMS / Picture Messaging | n/a | - | n/a | Yes |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | - | n/a | Yes |
| Text Messaging Templates | n/a | - | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | - | n/a | Yes |
| Stereo Speakers | - | - | Yes | Yes |
| Photo & Video | ||||
| TV Output | - | - | Yes | Yes |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | - | n/a | Yes |
| Calendar | n/a | - | n/a | Yes |
| Voice Memo | n/a | - | n/a | Yes |
| Software | ||||
| BREW | n/a | - | n/a | Yes |
| Games | n/a | - | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | Yes | - | Yes | Yes |
| Motorola Charm | Ericsson R278d | Samsung Galaxy Z Fold2 | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola Charm | Ericsson R278d | Samsung Galaxy Z Fold2 | Samsung SCH-A990 |
