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- Redmi K40 vs Redmi K50
Xiaomi Redmi K40 vs Xiaomi Redmi K50
What Redmi K40 does better (4) and where Redmi K50 wins (9) — every spec side by side.
Dimensions
Size comparison
Redmi K40Redmi K50
| Redmi K40 | Redmi K50 | Difference | |
|---|---|---|---|
| Height | 163.7 mm | 163.1 mm | +0.6 mm |
| Width | 76.4 mm | 76.2 mm | +0.2 mm |
| Thickness | 7.8 mm | 8.5 mm | −0.7 mm |
| Weight | 196 g | 201 g | −5 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Redmi K40 better than Redmi K50?
- CPU frequency3.2 GHz vs 2.85 GHz+12%
- Peak brightness1,300 nits vs 1,200 nits+8%
- Weight196 g vs 201 g+3%
- Thickness7.8 mm vs 8.5 mm+9%
Why is Redmi K50 better than Redmi K40?
- Wired charging33 W vs 67 W2×
- Battery capacity4,520 mAh vs 5,500 mAh+22%
- Storage (max)256 GB vs 512 GB2×
- Optical stabilisationNo · Redmi K40: Yes
- Pixel density395 ppi vs 526 ppi+33%
- Process7 nm vs 5 nm+40%
- Charged in 30 min58% vs 80%+38%
- Resolution (width)1,080 px vs 1,440 px+33%
- Bluetooth5.1 vs 5.3+4%
Specifications
Side by side
| Design | ||
| Weight | 196 g | 201 g |
| Thickness | 7.8 mm | 8.5 mm |
| Height | 163.7 mm | 163.1 mm |
| Width | 76.4 mm | 76.2 mm |
| Back | — | Glass |
| Ingress protection | — | IP53 |
| Water resistance (IPx) | — | IPx3 |
| Glass protection | Corning Gorilla Glass 5 | Corning Gorilla Glass Victus |
| Colours | Black, White, Aurora | Black, Gray, Blue, Green |
| Display | ||
| Screen size | 6.7″ | 6.7″ |
| Panel | Super AMOLED | OLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 1,080 px | 1,440 px |
| Resolution (height) | 2,400 px | 3,200 px |
| Pixel density | 395 ppi | 526 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,300 nits | 1,200 nits |
| Screen-to-body ratio | 85.9% | 86.4% |
| HDR | Yes | Yes |
| Performance | ||
| Chipset | Qualcomm SM8250-AC Snapdragon 870 5G | Mediatek Dimensity 8100 |
| Chip maker | Qualcomm | MediaTek |
| Process | 7 nm | 5 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 3.2 GHz | 2.85 GHz |
| GPU | Adreno 650 | Mali-G610 |
| Memory | ||
| RAM | 12 GB | 12 GB |
| Storage (max) | 256 GB | 512 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | UFS 3.1 | UFS 3.1 |
| Memory card slot | No | No |
| Camera | ||
| Main camera | 48 MP | 48 MP |
| Main camera aperture | f/1.8 | — |
| Main sensor size | 1/2.0" | 1/2.0" |
| Rear cameras | 2 | 2 |
| Optical stabilisation | No | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | No |
| Max video | 4K | 4K |
| 4K video frame rate | 30 fps | 30 fps |
| Selfie camera | 20 MP | 20 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 4,520 mAh | 5,500 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 33 W | 67 W |
| Charged in 30 min | 58% | 80% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6 | Wi-Fi 6 |
| Bluetooth | 5.1 | 5.3 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Dual-band GPS | Yes | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS, NavIC | GLONASS, GALILEO, BDS, QZSS, NavIC |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Software | ||
| OS at launch | Android 11 | Android 12 |
| Platform | Android | Android |
| Interface | MIUI 12 | MIUI 13 |
