Redmi K90 Max vs Xiaomi Redmi S2 comparison
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| key specs |
| Display | 6.83-inch | 5.99-inch |
| Front Camera | 20-megapixel | 16-megapixel |
| Rear Camera | 50-megapixel + 8-megapixel | 12-megapixel |
| RAM | 12GB | 3GB |
| Storage | 256GB | 32GB |
| Battery Capacity | 8550mAh | 3080mAh |
| OS | Android | Android 8.1 Oreo |
| Processor | - | Qualcomm Snapdragon 625 |
| Resolution | - | 720x1440 pixels |
| general |
| Brand | Xiaomi | Xiaomi |
| Model | Redmi K90 Max | Redmi S2 |
| Release date | April 21, 2026 | May 1, 2018 |
| Launched in India | No | - |
| Dimensions (mm) | 162.91 x 77.00 x 8.18 | 160.73 x 77.26 x 8.10 |
| Weight (g) | 227.00 | 170.00 |
| Battery capacity (mAh) | 8550 | 3080 |
| Fast charging | 100W Fast Charging | - |
| Colours | Space Silver, Shadow Black and Sky Blue | Black, Rose Gold, Gold, White, Blue, Red, Pink, Gray, Silver |
| Form factor | - | Touchscreen |
| Removable battery | - | No |
| display |
| Refresh Rate | 165 Hz | - |
| Resolution Standard | 1.5K | - |
| Screen size (inches) | 6.83 | 5.99 |
| Touchscreen | - | Yes |
| Resolution | - | 720x1440 pixels |
| hardware |
| Processor make | MediaTek Dimensity 9500 | Qualcomm Snapdragon 625 |
| RAM | 12GB | 3GB |
| Internal storage | 256GB | 32GB |
| Processor | - | 2GHz octa-core |
| Expandable storage | - | Yes |
| Expandable storage type | - | microSD |
| Expandable storage up to (GB) | - | 256 |
| camera |
| Rear camera | 50-megapixel + 8-megapixel | 12-megapixel |
| No. of Rear Cameras | 2 | - |
| Front camera | 20-megapixel | 16-megapixel |
| No. of Front Cameras | 1 | - |
| Rear flash | - | LED |
| Front flash | - | Yes |
| software |
| Operating system | Android | Android 8.1 Oreo |
| Skin | HyperOS 3 | MIUI 9 |
| connectivity |
| Wi-Fi | - | Yes |
| Wi-Fi standards supported | - | 802.11 b/g/n |
| GPS | - | Yes |
| Bluetooth | - | Yes, v 4.20 |
| Infrared | - | Yes |
| Number of SIMs | - | 2 |
| sim 1 |
| SIM Type | - | Nano-SIM |
| GSM/CDMA | - | GSM |
| 3G | - | Yes |
| 4G/ LTE | - | Yes |
| sim 2 |
| SIM Type | - | Nano-SIM |
| GSM/CDMA | - | GSM |
| 3G | - | Yes |
| 4G/ LTE | - | Yes |
| sensors |
| Compass/ Magnetometer | - | Yes |
| Proximity sensor | - | Yes |
| Accelerometer | - | Yes |
| Ambient light sensor | - | Yes |
| Gyroscope | - | Yes |