The Samsung Galaxy M40 has a 6.3-inch Full HD PLS TFT display. The device is powered by the Qualcomm Snapdragon 675 chipset. The device has 6GB RAM + 128GB storage. There is a 32MP + 8MP +5MP triple-camera at the back with 4K video recording and a 16MP camera at the front with Full HD video recording. The Galaxy M40 has a 3500mAh battery with 15W fast charging. There is also a USB Type-C port, dual-VoLTE, dual-band Wi-Fi ac, Bluetooth v5.0, GPS, and a rear-mounted fingerprint scanner
| Processor | Qualcomm Snapdragon 675 |
| Display | 6.3 inches |
| Storage | 128GB |
| Rear Camera | Triple (32MP + 8MP + 5MP) |
| Battery | 3500 mAh |
| RAM | 6GB |
| Resolution | 1080x2340 pixels |
| Aspect ratio | 19.5:9 |
| Display Type | Super AMOLED |
| Screen Size | 6.3 inches |
| Pixel Density | 403 pixel per inch (ppi) |
| Touchscreen type | Capacitive, Multi-touch |
| Screen to body percentage | 91.8% |
| RAM | 6GB |
| Internal | 128GB |
| Expandable | microSD, Upto 512GB (Dedicated Slot) |
| Operating System | Android v9.0 (Pie) |
| Rear | Triple (32MP + 8MP + 5MP) |
| Selfie | 16MP |
| Rear Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Type | Li-ion |
| Capacity | 3500 mAh |
| Fast Charging | Yes |
| GPS | Yes, with A-GPS, Glonass |
| Wi-Fi | Yes, with Mobile Hotspot |
| Bluetooth | v5.0 |
| USB | Type-C |
| SIM Configuration | Dual, Nano-SIM (Dedicated Slot) |
| NFC Chipset | Yes |
| Chipset | Qualcomm Snapdragon 675 |
| CPU | 2 GHz, Dual core, Kryo 460 + 1.7 GHz, Hexa Core, Kryo 460 |
| Graphics | Adreno 612 |
| Architecture | 64 bit |
| No of Cores | 8 (Octa core) |
| Accelerometer | Yes |
| Fingerprint sensor | Yes, Rear- mounted |
| Other Sensors | Light sensor, Proximity sensor |
| Speaker | Yes |
| Audio Jack | Yes, 3.5 mm |