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| Phone | Siemens C56 | Samsung UpStage M620 | Samsung Galaxy S21 | Samsung MM-A940 |
| Current U.S. Carriers | (none) | (none) | Verizon | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.1" diag. 4 : 3 |
6.2" diag. 20 : 9 |
? |
| Display Resolution & Type | 101 x 64 pixels |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
1080 x 2400 pixels (~424 ppi) AMOLED |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 120 Hz | ? |
| Battery | 700 mAh | 620 mAh | 4,000 mAh | ? |
| Processor | ? | ? | 2.8 GHz Qualcomm Snapdragon 888 | ? |
| RAM | ? | ? | 8 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 128 GB * | ? raw hardware |
| Main Camera | - | 1 megapixel | 12 megapixel | 2 megapixel |
| Wide Camera | - | - | 12 megapixel | - |
| Tele Camera | - | - | 64 megapixel | - |
| Video Capture | - | ? | 8K | ? |
| Front Camera | - | - | 10 megapixel | - |
| Weight |
3 oz (85g) |
2.57 oz (73g) |
6.03 oz (171g) |
4.9 oz (139g) |
| Dimensions |
3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm) |
4.07" x 1.73" x 0.37" (103 x 44 x 9.4 mm) |
5.97" x 2.8" x 0.31" (152 x 71 x 7.9 mm) |
3.68" x 1.83" x 1.01" (93 x 46 x 25.7 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 850, 1900 |
CDMA: 850, 1900 |
5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261 4G LTE: 1, 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 |
| Data Technology | GPRS | EVDO r0 | NR (5G) | EVDO r0 |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes in-display (ultrasonic) |
- |
| Flashlight | - | - | Yes | - |
| GPS / Location | Yes | - | n/a | Yes |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | ||||
| Adjustable Text Size | - | Yes | n/a | - |
| Hearing Aid Compatible | - |
Yes M4 (very compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | - | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | Yes |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| NFC | - | - | Yes | - |
| USB | Yes | Yes |
Yes USB Type C |
- |
| Wi-Fi | - | - |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- |
| Contacts | ||||
| Picture ID | - | Yes | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | Yes |
| Voice Dialing | Yes | Yes | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | Yes | n/a | - |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | Yes |
| External Antenna Jack | - | Yes | n/a | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | - | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| EMS / Picture Messaging | Yes | - | n/a | - |
| Instant Messaging | - | Yes | n/a | - |
| MMS | - | Yes | n/a | - |
| Text Messaging Templates | Yes | Yes | n/a | Yes |
| Music | ||||
| Music Player | - | Yes | n/a | Yes |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | - | Yes | n/a | Yes |
| Voice Memo | - | Yes | n/a | Yes |
| Software | ||||
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | - | - | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Siemens C56 | Samsung UpStage M620 | Samsung Galaxy S21 | Samsung MM-A940 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens C56 | Samsung UpStage M620 | Samsung Galaxy S21 | Samsung MM-A940 |
