| Hardware and OS | Samsung Galaxy S9 Mini | |
| Operating System | Android v8.0 (Oreo) | |
| Processor | Octa core (2.3 GHz, Quad core, M2 Mongoose 1.7 GHz, Quad core, Cortex A53) | |
| Chipset | Samsung Exynos 9 Octa 9810 | |
| Architecture | 64 bit | |
| Internal Memory | 64 GB | |
| External memory | Yes, Up to 256 GB | |
| RAM | 4 GB | |
| GPU | Mali-G71 MP20 | |
| Display | Samsung Galaxy S9 Mini | other phones |
| Type | Super AMOLED | |
| Size | 5.8 inches (14.73 cm) | |
| Screen format | 18:9 | |
| PPI /points per inch/ | 506 ppi | |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | |
| Screen Protection | Corning Gorilla Glass, | |
| Connectivity | Samsung Galaxy S9 Mini | other phones |
| 4G Bands | TD-LTE 2300(band 40), FD-LTE 1800(band 3) | |
| Network Support | 4G, 3G, 2G | |
| NFC | Yes | |
| SIM card | SIM1: Nano, SIM2: Nano (Hybrid) | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Bluetooth | Yes, v5.0 | |
| GPS | Yes with A-GPS, Glonass | |
| USB Connectivity | Mass storage device, USB charging | |
| VoLTE | Yes | |
| Wi-Fi | Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz | |
| Camera | Samsung Galaxy S9 Mini | other phones |
| Main camera | 12 MP, Primary Camera, 12 MP, | |
| Camera Setup | Dual | |
| Autofocus | Yes, Phase Detection autofocus | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, Dual-color LED Flash | |
| Image Resolution | 4000 x 3000 Pixels | |
| Selfie camera | 8 MP, Primary Camera, | |
| Multimedia | Samsung Galaxy S9 Mini | other phones |
| Headphone jack | 3.5 mm | |
| Loudspeaker | Yes | |
| Design | Samsung Galaxy S9 Mini | other phones |
| Body build | Case: Metal, Back: Metal | |
| Colours | Black | |
| Ruggedness | Dust proof | |
| Waterproof | Yes, Water resistant (up to 30 minutes in a depth of 1.5 meter), IP68 | |
| Width | 68.7 mm | |
| Height | 147.7 mm | |
| Thickness | 8.4 mm | |
| Weight | 163 grams | |
| Battery | Samsung Galaxy S9 Mini | other phones |
| Capacity | 3000 mAh | |
| Type | Li-ion | |
| Removable | No | |
| Quick Charging | Yes, Fast | |
| USB Type-C | Yes | |
| Other features | Samsung Galaxy S9 Mini | other phones |
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope | |
