Hammer Professional BS21 vs Hammer Construction
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP68 | IP69 |
| Dimensions | 156.50 x 77.20 x 17.80 mm | 168.60 x 82.80 x 15.20 mm |
| Weight | 300.00 g | 321.00 g |
| Display size | 5.00" | 6.00" |
| Display | Color / IPS TFT 16M colors 60 Hz 720 x 1280 px (5.00") 294 ppi | Color / IPS TFT 16M colors 1080 x 2160 px (6.00") 402 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 | Corning Gorilla Glass Buy screen protector
|
| Additional display |  | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 2460 min. (41.0 h) |  |
| Stand-by (max.) | 3G: 595 h. (24.8 days) 4G: 406 h. (16.9 days) | |
| Playback time (max.) | Audio: 30 h (1.3 days) | nd |
| Standard battery | Li-Po 5000 mAhBuy powerbank
| Li-Ion 6000 mAhBuy powerbank
|
| Quick battery charging | |  |
| Wireless battery charging | | |
| Internal memory | 16 GB | 128 GB |
| RAM memory | 2 GB | 6 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 128 GBBuy memory card | microSD, microSDHC, microSDXC up to 1000 GBBuy memory card |
| Operating system | Android 8.1 Oreo | Android 12 |
| Processor | MediaTek MT6739 | MediaTek Helio G85 MT6769V |
| Processor clock | 1500 MHz | 2000 MHz |
| GPU | PowerVR GE8100 @570 MHz | ARM Mali-G52 MC2 @1 GHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(eSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | nanoSIM, microSD | |
| Announced | | 4Q 2022 |
| Other names | - | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 900 2100 |
| LTE standard | FDD LTE: 2600, 2500, 2300, 2100, 1900, 1800, 900, 800 | FDD LTE: 2600, 2300, 2100, 1800, 900, 850, 800 |
| Standard 5G | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | | Standard |
| Photo sensor model | GalaxyCore GC8024 | |
| Photo matrix | 8 Mpx | 16 Mpx |
| Optical zoom | | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | 1920x1080 px |
| Video formats | H.264, H.265, MPEG4 | H.264, H.265, MPEG4 - 30 fps |
| Additional | AF, f/2.4 | AF |
| Second camera | | |
| Camera type | nd | Wide-angle |
| Photo matrix | nd | 8 Mpx |
| Resolution | nd | 3264x2448 px |
| Optical zoom | nd | |
| Field of view | nd | 120 ° |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Additional | nd | FF |
| Third camera | | |
| Camera type | nd | Depth of field |
| Photo matrix | nd | 0.1 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Additional | nd | FF |
CAMERAS - FRONT
| First camera | | |
| Camera type | | Portrait |
| Photo matrix | | 8 Mpx |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | H.264, H.265, MPEG4 | |
| Additional | FF | FF |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | - | - |
| LTE UP | 51.00 Mbit/s | - |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.2 | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 Type-C | v2.0 |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, MID, WAV, eAAC+ | AAC, AAC+, AMR, MID, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |