| Local Name | Galaxy A40 |
| Additional Information | Versions: SM-A405FN/DS (Global); SM-A405F/DS; SM-A405FM/DS (Russia) |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| 3G Bands | HSDPA 850 / 900 / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps |
| Announced | 2019, March |
| Status | Available. Released 2019, April |
| Dimensions | 144.4 x 69.2 x 7.9 mm (5.69 x 2.72 x 0.31 in) |
| Weight | 140 g (4.94 oz) |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Super AMOLED capacitive touchscreen, 16M colors |
| Screen Size | 5.9 inches, 85.5 cm2 (~85.5% screen-to-body ratio) |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~437 ppi density) |
| Protection | Corning Gorilla Glass 3 |
| OS | Android 9.0 (Pie) |
| Chipset | Exynos 7904 (14 nm) |
| CPU | Octa-core (2x1.77 GHz Cortex-A73 & 6x1.59 GHz Cortex-A53) |
| GPU | Mali-G71 MP2 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 64GB 4GB RAM | eMMC 5.1 |
| Camera Features | LED flash, panorama, HDR |
| Video | 1080p@30fps |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 5.0, A2DP, LE |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| NFC | Yes |
| Radio | FM radio |
| USB | 2.0, Type-C 1.0 reversible connector |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Features Summary | ANT+ |
| Battery | Non-removable Li-Po 3100 mAh battery |
| Colors | Black, White, Blue, Coral |
| SAR EU | 0.49 W/kg (head) 1.34 W/kg (body) |
