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- A55 vs Galaxy M21 2021
OPPO A55 vs Samsung Galaxy M21 2021
What A55 does better (5) and where Galaxy M21 2021 wins (9) — every spec side by side.
vs
3.6Display5.0
5.5Camera6.7
4.6Battery6.6
5.0Features5.0
Dimensions
Size comparison
A55Galaxy M21 2021
| A55 | Galaxy M21 2021 | Difference | |
|---|---|---|---|
| Height | 163.6 mm | 159 mm | +4.6 mm |
| Width | 75.7 mm | 75.1 mm | +0.6 mm |
| Thickness | 8.4 mm | 9 mm | −0.6 mm |
| Weight | 193 g | 192 g | +1 g |
Drawn to the same scale from the official dimensions (front and side).
Why is A55 better than Galaxy M21 2021?
- Wired charging18 W vs 15 W+20%
- Main camera50 MP vs 48 MP+4%
- Peak brightness550 nits vs 420 nits+31%
- Main camera aperturef/1.8 vs f/2+11%
- Thickness8.4 mm vs 9 mm+7%
Why is Galaxy M21 2021 better than A55?
- OLED panelNo · A55: Yes
- Battery capacity5,000 mAh vs 6,000 mAh+20%
- Pixel density270 ppi vs 403 ppi+49%
- Rear cameras1 vs 22×
- Ultra-wide cameraNo · A55: Yes
- Max video1080p vs 4K
- Resolution (width)720 px vs 1,080 px+50%
- Selfie camera16 MP vs 20 MP+25%
- Process12 nm vs 10 nm+20%
Specifications
Side by side
| Design | ||
| Weight | 193 g | 192 g |
| Thickness | 8.4 mm | 9 mm |
| Height | 163.6 mm | 159 mm |
| Width | 75.7 mm | 75.1 mm |
| Frame | — | Plastic |
| Back | — | Plastic |
| Glass protection | NEG T2X-1 | — |
| Colours | Rainbow Blue, Starry Black, Green | Charcoal Black, Arctic Blue |
| Display | ||
| Screen size | 6.5″ | 6.4″ |
| Panel | IPS LCD | Super AMOLED |
| OLED panel | No | Yes |
| Resolution (width) | 720 px | 1,080 px |
| Resolution (height) | 1,600 px | 2,340 px |
| Pixel density | 270 ppi | 403 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | 550 nits | 420 nits |
| Screen-to-body ratio | 82.6% | 84.2% |
| Performance | ||
| Chipset | Mediatek MT6765G Helio G35 | Exynos 9611 |
| Chip maker | MediaTek | Exynos |
| Process | 12 nm | 10 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 2.3 GHz |
| GPU | PowerVR GE8320 | Mali-G72 MP3 |
| Memory | ||
| RAM | 6 GB | 6 GB |
| Storage (max) | 128 GB | 128 GB |
| Storage (base) | 64 GB | 64 GB |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 48 MP |
| Main camera aperture | f/1.8 | f/2 |
| Main sensor size | — | 1/2.0" |
| Rear cameras | 1 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | Yes |
| Telephoto camera | No | No |
| Max video | 1080p | 4K |
| 4K video frame rate | — | 30 fps |
| Selfie camera | 16 MP | 20 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 6,000 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 18 W | 15 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 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Side | Rear |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| SAR (head) | — | 0.47 W/kg |
| Software | ||
| OS at launch | Android 11 | Android 11 |
| Platform | Android | Android |
| Interface | ColorOS 11.1 | One UI 3.1 Core |
