| Hammer Professional BS21 |
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| Hardware and OS | Hammer Professional BS21 | |
| Operating system | Android 8.1 Oreo | |
| Processor | MediaTek MT6739 Processor clock: 1.50 GHz Number of cores: 4 GPU: PowerVR GE8100 @570 MHz | |
| RAM memory | 2 GB | |
| Internal memory | 16 GB | |
| SIM cards standard | nanoSIM, nanoSIM | |
| Memory cards | yes microSD, microSDHC, microSDXC (up to 128 GB) | |
| Display | Hammer Professional BS21 | other phones |
| Display | Color / IPS TFT 16M colors, 60 Hz 720 x 1280 px (5.00") 294 ppi ~57.0% screen-to-body ratio | |
| Display protection | Corning Gorilla Glass 3 | |
| Touchscreen | yes | |
| Connectivity | Hammer Professional BS21 | other phones |
| NFC | yes | |
| Bluetooth | yes v4.2 | |
| GPS | yes | |
| GPRS | yes | |
| EDGE | yes | |
| WiFi | yes v802.11 a/b/g/n | |
| Hotspot WiFi | yes | |
| DLNA | yes | |
| IrDA | yes | |
| USB | yes v2.0 Type-C | |
| WAP | yes v2.0 | |
| Camera | Hammer Professional BS21 | other phones |
| Main camera | 8 Mpx | |
| Flash | yes LED | |
| Digital zoom | yes | |
| Additional | AF, f/2.4 | |
| Video formats | H.264, H.265, MPEG4 | |
| Video resolution | 1920x1080 | |
| Multimedia | Hammer Professional BS21 | other phones |
| Stereo speakers | yes | |
| Design | Hammer Professional BS21 | other phones |
| Dimensions | 156.50 x 77.20 x 17.80 mm | |
| Weight | 300.00 g | |
| Waterproof | IP68; MIL-STD810G; IK07 | |
| Battery | Hammer Professional BS21 | other phones |
| Capacity | Li-Po 5000 mAh | |
| Quick battery charging | yes | |
| Wireless battery charging | yes | |
| Other | Hammer Professional BS21 | other phones |
| Accelerometer | yes | |
| Altimeter | yes | |
| Barometer | yes | |
| Fingerprint scanner | yes | |
| Gravity | yes | |
| Gyroscope | yes | |
| Hall-effect | yes | |
| Hygrometer | yes | |
| Iris scanner | yes | |
| Magnetometer | yes | |
| Proximity | yes | |
| Thermometer | yes |
