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| Phone | Motorola Charm | Samsung SCH-A990 | Microsoft Surface Duo 2 | Motorola i830 / i833 / i835 / i836 | Sonim XP3plus |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
AT&T T-Mobile Verizon |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.8" diag. 4 : 3 |
? |
8.3" diag. 4 : 3 |
? |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
2688 x 1892 pixels (~396 ppi) AMOLED |
130 x 130 pixels LCD (TFT/TFD) |
240 x 320 pixels (~143 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 90 Hz | ? | 60 Hz |
| Battery | 1,170 mAh | 1,000 mAh | 4,449 mAh | ? | 2,300 mAh |
| Processor | 720 MHz TI OMAP3410 | ? | Qualcomm Snapdragon 888 | ? | 2 GHz Qualcomm Snapdragon 662 (SM6115) |
| RAM | ? | ? | 8 GB | ? | 2 GB |
| Storage | ? raw hardware | ? raw hardware | 128 GB * | ? raw hardware | 16 GB |
| Main Camera | 3 megapixel | 3 megapixel | 12 megapixel | - | 8 megapixel |
| Wide Camera | - | - | 16 megapixel | - | - |
| Tele Camera | - | - | 12 megapixel | - | - |
| Video Capture | ? | ? | 4K UHD | - | 1080p HD |
| Front Camera | - | - | 12 megapixel | - | - |
| Weight |
3.88 oz (110g) |
4.4 oz (125g) |
10.02 oz (284g) |
3.94 oz (112g) |
7.76 oz (220g) |
| Dimensions |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.72" x 3.63" x 0.43" (145 x 92 x 11 mm) |
3.35" x 1.77" x 0.79" (85 x 45 x 20.1 mm) |
4.57" x 2.36" x 1.1" (116 x 60 x 28 mm) |
| Form Factor | Slab | Clamshell | Unique | Clamshell | Clamshell |
| Platform / OS | Android | (proprietary) | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 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 |
iDEN: 800 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 25, 26, 30, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSDPA 3.6 | EVDO r0 | NR (5G) | - | LTE (Cat 13) |
| Features | |||||
| Barometer | - | - | - | - | Yes |
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | Yes | - | Yes |
| GPS / Location | n/a | Yes | n/a | Yes | Yes |
| Ruggedized | - | - | - | - | Yes |
| Water-Resistant | - | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | |||||
| Adjustable Text Size | n/a | - | n/a | - | Yes |
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | Yes | Yes |
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | - | Yes |
| Mobile Hotspot | n/a | - | n/a | - | Yes |
| NFC | - | - | Yes | - | - |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
Yes |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | Yes | Yes |
| Ringer ID | n/a | Yes | n/a | Yes | Yes |
| Voice Dialing | n/a | Yes | n/a | Yes | Yes |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | Yes | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes | - |
| Real-Music Ringers | n/a | Yes | n/a | - | - |
| Data & Network | |||||
| Data Tethering | n/a | Yes | n/a | Yes | Yes |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | n/a | Yes | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- | - |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | - | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | - | - |
| EMS / Picture Messaging | n/a | Yes | n/a | - | - |
| Instant Messaging | n/a | - | n/a | - | - |
| MMS | n/a | Yes | n/a | Yes | Yes |
| Text Messaging Templates | n/a | Yes | n/a | - | Yes |
| Music | |||||
| FM Radio | - | - | - | - | Yes |
| Headphone Jack (3.5mm) | Yes | - | - | - | Yes |
| Music Player | n/a | Yes | n/a | - | Yes |
| Stereo Speakers | - | Yes | Yes | - | - |
| Photo & Video | |||||
| Miracast | - | - | Yes | - | - |
| TV Output | - | Yes | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | - | Yes |
| Calculator | n/a | Yes | n/a | - | Yes |
| Calendar | n/a | Yes | n/a | Yes | Yes |
| Voice Memo | n/a | Yes | n/a | Yes | Yes |
| Software | |||||
| BREW | n/a | Yes | n/a | - | - |
| Games | n/a | Yes | n/a | Yes | - |
| Java (J2ME) | n/a | - | n/a | Yes | - |
| Voice | |||||
| HD Voice | - | - | Yes | - | Yes |
| Headset Jack (2.5 mm) | n/a | - | n/a | Yes | - |
| Push-To-Talk | - | - | - | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Motorola Charm | Samsung SCH-A990 | Microsoft Surface Duo 2 | Motorola i830 / i833 / i835 / i836 | Sonim XP3plus | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola Charm | Samsung SCH-A990 | Microsoft Surface Duo 2 | Motorola i830 / i833 / i835 / i836 | Sonim XP3plus |
