Redmi Note 9 vs Samsung Galaxy A51
20Performance20
29.6Display30.8
29.8Camera34.7
39Battery29.4
28Features33.3
6 spec wins — Redmi Note 97 spec wins — Samsung Galaxy A51
InnoReviews verdict
This one is close to a dead heat: Redmi Note 9 scores 28.5 against 28.3 for Samsung Galaxy A51. Pick by the categories that matter to you — Redmi Note 9 edges ahead in battery, or by price.
Which would you pick?
Key differences
Reasons to pick the Redmi Note 9
- Stronger battery score: 39 vs 29
- 26% higher AnTuTu 10: 270,000 vs 215,000
- 26% higher capacity: 5,020 mAh vs 4,000 mAh
- 20% higher Geekbench 6 (single): 420 vs 350
- 20% higher Wired charging: 18 W vs 15 W
- Lower launch price: $199 vs $399
Reasons to pick the Samsung Galaxy A51
- Stronger camera score: 35 vs 30
- Stronger features score: 33 vs 28
- 146% higher Front camera: 32 MP vs 13 MP
- 50% higher RAM (max): 6 GB vs 4 GB
- 50% higher Ultra-wide: 12 MP vs 8 MP
Display
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| Screen size | 6.53 ″ | 6.5 ″ |
| Panel type | IPS LCD | Super AMOLED |
| Resolution | 2340x1080 | 2400x1080 |
| Pixel density | 394 ppi | 405 ppi+3% |
| Refresh rate | 60 Hz | 60 Hz |
Performance
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| Chipset | MediaTek Helio G85 | Samsung Exynos 9611 |
| AnTuTu 10 | 270,000+26%Top 93% | 215,000Top 98% |
| Geekbench 6 (single) | 420+20%Top 94% | 350Top 99% |
| Geekbench 6 (multi) | 1,350+8%Top 96% | 1,250Top 100% |
| RAM (max) | 4 GB | 6 GB+50% |
| Storage options | 64GB / 128GB | 64GB / 128GB |
| Storage type | eMMC 5.1 | UFS 2.0 |
Camera
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| Main camera | 48 MP | 48 MP |
| Main aperture | f/1.8 | f/2.0 |
| Ultra-wide | 8 MP | 12 MP+50% |
| Max video | 1080p@30fps | 4K@30fps |
| Front camera | 13 MP | 32 MP+146% |
| OIS | No | No |
Battery
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| Capacity | 5,020 mAh+26% | 4,000 mAh |
| Wired charging | 18 W+20% | 15 W |
Design
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| Weight | 199 g | 172 g+14% |
| Thickness | 8.9 mm | 7.9 mm+11% |
| Frame material | Plastic | Plastic |
Connectivity
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| 5G | No | No |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.0 | 5.0 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| OS at launch | Android 10 (MIUI 11) | Android 10 (One UI 2) |
| OS update pledge | 2 years | 3 years+50% |
Audio
| Spec | Redmi Note 9 | Samsung Galaxy A51 |
|---|---|---|
| Stereo speakers | No | No |
| 3.5mm jack | Yes | Yes |