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- Galaxy M31s vs Redmi K30 Ultra
Samsung Galaxy M31s vs Xiaomi Redmi K30 Ultra
What Galaxy M31s does better (8) and where Redmi K30 Ultra wins (11) — every spec side by side.
vs
6.2Display7.2
7.5Camera7.8
7.5Battery4.2
5.0Features8.7
Dimensions
Size comparison
Galaxy M31sRedmi K30 Ultra
| Galaxy M31s | Redmi K30 Ultra | Difference | |
|---|---|---|---|
| Height | 159.3 mm | 163.3 mm | −4 mm |
| Width | 74.4 mm | 75.4 mm | −1 mm |
| Thickness | 9.3 mm | 9.1 mm | +0.2 mm |
| Weight | 203 g | 213 g | −10 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy M31s better than Redmi K30 Ultra?
- Battery capacity6,000 mAh vs 4,500 mAh+33%
- Memory card slotYes · Redmi K30 Ultra: No
- 4K selfie videoYes · Redmi K30 Ultra: No
- 3.5 mm headphone jackYes · Redmi K30 Ultra: No
- Weight203 g vs 213 g+5%
- Pixel density405 ppi vs 395 ppi+3%
- Selfie camera32 MP vs 20 MP+60%
- Main camera aperturef/1.8 vs f/1.9+6%
Why is Redmi K30 Ultra better than Galaxy M31s?
- Refresh rate60 Hz vs 120 Hz2×
- Storage (max)128 GB vs 512 GB4×
- Telephoto cameraNo · Galaxy M31s: Yes
- 5GNo · Galaxy M31s: Yes
- Stereo speakersNo · Galaxy M31s: Yes
- Wired charging25 W vs 33 W+32%
- CPU frequency2.3 GHz vs 2.6 GHz+13%
- Screen size6.5″ vs 6.7″+3%
- Process10 nm vs 7 nm+43%
- Wi-Fi standardWi-Fi 5 vs Wi-Fi 6+20%
- Thickness9.3 mm vs 9.1 mm+2%
Specifications
Side by side
| Design | ||
| Weight | 203 g | 213 g |
| Thickness | 9.3 mm | 9.1 mm |
| Height | 159.3 mm | 163.3 mm |
| Width | 74.4 mm | 75.4 mm |
| Frame | — | Aluminium |
| Back | — | Glass |
| Glass protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 5 |
| Colours | Mirage Black, Mirage Blue | Moonlight White, Midnight Black, Mint Green |
| Display | ||
| Screen size | 6.5″ | 6.7″ |
| Panel | Super AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,400 px | 2,400 px |
| Pixel density | 405 ppi | 395 ppi |
| Refresh rate | 60 Hz | 120 Hz |
| Peak brightness | — | 500 nits |
| Screen-to-body ratio | 86.1% | 87.2% |
| HDR | — | Yes |
| Performance | ||
| Chipset | Exynos 9611 | Mediatek Dimensity 1000+ |
| Chip maker | Exynos | MediaTek |
| Process | 10 nm | 7 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 2.6 GHz |
| GPU | Mali-G72 MP3 | Mali-G77 MC9 |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage (max) | 128 GB | 512 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | UFS 2.1 | — |
| Memory card slot | Yes | No |
| Camera | ||
| Main camera | 64 MP | 64 MP |
| Main camera aperture | f/1.8 | f/1.9 |
| Main sensor size | 1/1.73" | 1/1.73" |
| Rear cameras | 2 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | Yes |
| Optical zoom | — | 2.1× |
| Max video | 4K | 4K |
| 4K video frame rate | 30 fps | 30 fps |
| Selfie camera | 32 MP | 20 MP |
| 4K selfie video | Yes | No |
| Battery | ||
| Battery capacity | 6,000 mAh | 4,500 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 25 W | 33 W |
| Charged in 30 min | — | 52% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 6 |
| Bluetooth | 5 | 5.1 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Dual-band GPS | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | No | Yes |
| 3.5 mm headphone jack | Yes | No |
| Fingerprint sensor | Side | Under display |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| SAR (head) | 1.38 W/kg | — |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | One UI 4.1 | MIUI 12 |
