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- Galaxy A21s vs Redmi 9
Samsung Galaxy A21s vs Xiaomi Redmi 9
What Galaxy A21s does better (8) and where Redmi 9 wins (6) — every spec side by side.
vs
3.4Display3.1
2.2Performance2.2
5.7Camera5.0
4.0Battery5.8
5.0Features5.0
Dimensions
Size comparison
Galaxy A21sRedmi 9
| Galaxy A21s | Redmi 9 | Difference | |
|---|---|---|---|
| Height | 163.7 mm | 163.3 mm | +0.4 mm |
| Width | 75.3 mm | 77 mm | −1.7 mm |
| Thickness | 8.9 mm | 9.1 mm | −0.2 mm |
| Weight | 192 g | 198 g | −6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy A21s better than Redmi 9?
- Main camera48 MP vs 13 MP3.7×
- Measured brightness490 nits vs 328 nits+49%
- Peak brightness540 nits vs 400 nits+35%
- Weight192 g vs 198 g+3%
- Selfie camera13 MP vs 8 MP+62%
- Process8 nm vs 12 nm+50%
- Main camera aperturef/2 vs f/2.2+10%
- Thickness8.9 mm vs 9.1 mm+2%
Why is Redmi 9 better than Galaxy A21s?
- AnTuTu score107,157 vs 201,829+88%
- Geekbench 6 (multi-core)1,100 vs 1,325+20%
- Wired charging15 W vs 18 W+20%
- Pixel density270 ppi vs 395 ppi+46%
- Resolution (width)720 px vs 1,080 px+50%
- Loudspeaker loudness-30 LUFS vs -26.9 LUFS+-10%
Specifications
Side by side
| Design | ||
| Weight | 192 g | 198 g |
| Thickness | 8.9 mm | 9.1 mm |
| Height | 163.7 mm | 163.3 mm |
| Width | 75.3 mm | 77 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Glass protection | — | Corning Gorilla Glass 3 |
| Colours | Black, White, Blue, Red | Carbon Gray, Sunset Purple, Ocean Green, Pink/Blue |
| Display | ||
| Screen size | 6.5″ | 6.5″ |
| Panel | PLS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 1,080 px |
| Resolution (height) | 1,600 px | 2,340 px |
| Pixel density | 270 ppi | 395 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | 540 nits | 400 nits |
| Measured brightness | 490 nits | 328 nits |
| Screen-to-body ratio | 82.8% | 83.2% |
| Performance | ||
| Chipset | Exynos 850 | Mediatek MT6769V/CU Helio G80 |
| Chip maker | Exynos | MediaTek |
| Process | 8 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2 GHz | 2 GHz |
| GPU | Mali-G52 | Mali-G52 MC2 |
| AnTuTu score | 107,157 | 201,829 |
| Geekbench 6 (multi-core) | 1,100 | 1,325 |
| 3DMark Wild Life Extreme | — | 171 |
| Memory | ||
| RAM | 6 GB | 6 GB |
| Storage (max) | 128 GB | 128 GB |
| Storage (base) | 32 GB | 32 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 48 MP | 13 MP |
| Main camera aperture | f/2 | f/2.2 |
| Main sensor size | 1/2.0" | 1/3.1" |
| Rear cameras | 2 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 13 MP | 8 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,020 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 15 W | 18 W |
| Charged in 30 min | 25% | — |
| 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 |
| Infrared port | — | Yes |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Loudspeaker loudness | -30 LUFS | -26.9 LUFS |
| Fingerprint sensor | Rear | Rear |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | Fingerprint (rear-mounted), accelerometer, proximity, compass |
| SAR (head) | 0.42 W/kg | 0.71 W/kg |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | One UI 4.1 | MIUI 13 |
