| Local Name | Redmi Note 12S |
| Technology | GSM / HSPA / LTE |
| 4G Bands | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 |
| 3G Bands | HSDPA 850 / 900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA, LTE-A |
| Announced | 2023, March 06 |
| Status | Available. Released 2023, April 26 |
| Dimensions | 159.9 x 73.9 x 8.1 mm (6.30 x 2.91 x 0.32 in) |
| Weight | 176 g (6.21 oz) |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Li-Po 5000 mAh, non-removable |
| Screen Size | 6.43 inches, 99.8 cm2 (~84.5% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~409 ppi density) |
| OS | Android 13, MIUI 14 |
| Chipset | Mediatek Helio G96 (12 nm) |
| CPU | Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| GPU | Mali-G57 MC2 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM |
| Camera Features | LED flash, HDR, panorama |
| Video | 1080p@30fps |
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Bluetooth | 5.2, A2DP, LE |
| NFC | Yes (market/region dependent) |
| Infrared Port | Yes |
| Radio | Unspecified |
| USB | USB Type-C 2.0 |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors | Onyx Black, Ice Blue, Pearl Green |
