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- Galaxy M21s vs Poco X3
Samsung Galaxy M21s vs Xiaomi Poco X3
What Galaxy M21s does better (5) and where Poco X3 wins (7) — every spec side by side.
vs
5.0Display5.5
7.5Camera7.4
6.6Battery7.8
3.5Features3.7
Dimensions
Size comparison
Galaxy M21sPoco X3
| Galaxy M21s | Poco X3 | Difference | |
|---|---|---|---|
| Height | 159.2 mm | 165.3 mm | −6.1 mm |
| Width | 75.1 mm | 76.8 mm | −1.7 mm |
| Thickness | 8.9 mm | 10.1 mm | −1.2 mm |
| Weight | 191 g | 225 g | −34 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy M21s better than Poco X3?
- OLED panelYes · Poco X3: No
- Weight191 g vs 225 g+18%
- Selfie camera32 MP vs 20 MP+60%
- Thickness8.9 mm vs 10.1 mm+13%
- Main camera aperturef/1.8 vs f/1.9+6%
Why is Poco X3 better than Galaxy M21s?
- Wired charging15 W vs 33 W2.2×
- Refresh rate60 Hz vs 120 Hz2×
- Stereo speakersNo · Galaxy M21s: Yes
- RAM6 GB vs 8 GB+33%
- Peak brightness420 nits vs 450 nits+7%
- Screen size6.4″ vs 6.7″+4%
- Process10 nm vs 8 nm+25%
Specifications
Side by side
| Design | ||
| Weight | 191 g | 225 g |
| Thickness | 8.9 mm | 10.1 mm |
| Height | 159.2 mm | 165.3 mm |
| Width | 75.1 mm | 76.8 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Ingress protection | — | IP53 |
| Water resistance (IPx) | — | IPx3 |
| Glass protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 5 |
| Colours | Blue, Black | Cobalt Blue, Shadow Gray |
| Display | ||
| Screen size | 6.4″ | 6.7″ |
| Panel | Super AMOLED | IPS LCD |
| OLED panel | Yes | No |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,340 px | 2,400 px |
| Pixel density | 403 ppi | 395 ppi |
| Refresh rate | 60 Hz | 120 Hz |
| Peak brightness | 420 nits | 450 nits |
| Screen-to-body ratio | 84.1% | 84.6% |
| HDR | — | Yes |
| Performance | ||
| Chipset | Exynos 9611 | Qualcomm SM7150-AC Snapdragon 732G |
| Chip maker | Exynos | Qualcomm |
| Process | 10 nm | 8 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 2.3 GHz |
| GPU | Mali-G72 MP3 | Adreno 618 |
| Memory | ||
| RAM | 6 GB | 8 GB |
| Storage (max) | 128 GB | 128 GB |
| Storage (base) | 64 GB | 64 GB |
| Storage type | eMMC 5.1 | UFS 2.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 64 MP | 64 MP |
| Main camera aperture | f/1.8 | f/1.9 |
| Main sensor size | 1/1.72" | 1/1.73" |
| Rear cameras | 2 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | No |
| Max video | 4K | 4K |
| 4K video frame rate | 30 fps | 30 fps |
| Selfie camera | 32 MP | 20 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 6,000 mAh | 6,000 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 15 W | 33 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5 | 5.1 |
| NFC | No | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, BDS |
| Features | ||
| Stereo speakers | No | Yes |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Rear | Side |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| SAR (head) | 0.48 W/kg | 0.75 W/kg |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | One UI 2.5 | MIUI 12 |
