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| Phone | Samsung Chrono | Samsung SCH-A990 | Samsung Galaxy A51 (4G) | Samsung Galaxy S7 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
? |
6.5" diag. 20 : 9 |
5.1" diag. 16 : 9 |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
1080 x 2400 pixels (~405 ppi) AMOLED |
1440 x 2560 pixels (~576 ppi) AMOLED |
| Display Refresh | ? | ? | 60 Hz | 60 Hz |
| Battery | ? | 1,000 mAh | 4,000 mAh | 3,000 mAh |
| Processor | ? | ? | 2.3 GHz Samsung Exynos 9611 | 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) |
| RAM | ? | ? | 4 GB | 4 GB |
| Storage | ? raw hardware | ? raw hardware | 128 GB | 32 GB |
| Main Camera | Yes | 3 megapixel | 48 megapixel | 12 megapixel |
| Wide Camera | - | - | 12 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | 4K UHD | 4K UHD |
| Front Camera | - | - | 32 megapixel | 5 megapixel |
| Weight |
3.14 oz (89g) |
4.4 oz (125g) |
6.07 oz (172g) |
5.36 oz (152g) |
| Dimensions |
3.7" x 1.83" x 0.67" (94 x 46 x 17 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
6.24" x 2.89" x 0.31" (158 x 73 x 7.9 mm) |
5.61" x 2.74" x 0.31" (142 x 70 x 7.9 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
CDMA: 850, 1700, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 28, 30, 41, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 29, 30, 40, 41 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | 1xRTT | EVDO r0 | LTE (Cat 12) | LTE (Cat 9) |
| Features | ||||
| Fingerprint Reader | - | - |
Yes in-display (optical) |
Yes |
| Flashlight | - | Yes | Yes | Yes |
| GPS / Location | Yes | Yes | n/a | n/a |
| VR-ready | - | - | - | Yes |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| MirrorLink | - | - | Yes | Yes |
| NFC | - | - | Yes | Yes |
| USB |
Yes Micro-USB |
Yes |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | Yes | Yes | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Real-Music Ringers | - | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | Yes | n/a | n/a |
| Dual-SIM | - | - | - | Yes |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | - | n/a | n/a |
| EMS / Picture Messaging | - | Yes | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | - | Yes | n/a | n/a |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| Miracast | - | - | - | Yes |
| TV Output | - | Yes | - | - |
| Power | ||||
| Fast Charging | - | - | Yes | Yes |
| Wireless Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a |
| Software | ||||
| BREW | Yes | Yes | n/a | n/a |
| Games | Yes | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung Chrono | Samsung SCH-A990 | Samsung Galaxy A51 (4G) | Samsung Galaxy S7 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Chrono | Samsung SCH-A990 | Samsung Galaxy A51 (4G) | Samsung Galaxy S7 |
