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- K12 (China) vs Redmi Note 9
Lenovo K12 (China) vs Xiaomi Redmi Note 9
What K12 (China) does better (2) and where Redmi Note 9 wins (13) — every spec side by side.
vs
3.4Display3.6
3.9Camera5.7
3.5Battery5.8
2.9Features5.0
Dimensions
Size comparison
K12 (China)Redmi Note 9
| K12 (China) | Redmi Note 9 | Difference | |
|---|---|---|---|
| Height | 165.2 mm | 162.3 mm | +2.9 mm |
| Width | 75.7 mm | 77.2 mm | −1.5 mm |
| Thickness | 9.2 mm | 8.9 mm | +0.3 mm |
| Weight | 200 g | 199 g | +1 g |
Drawn to the same scale from the official dimensions (front and side).
Why is K12 (China) better than Redmi Note 9?
- Process11 nm vs 12 nm+9%
- Main camera aperturef/1.7 vs f/1.8+6%
Why is Redmi Note 9 better than K12 (China)?
- Wired charging10 W vs 18 W+80%
- RAM4 GB vs 6 GB+50%
- Storage (max)64 GB vs 128 GB2×
- NFCNo · K12 (China): Yes
- Pixel density270 ppi vs 395 ppi+46%
- Rear cameras1 vs 22×
- Ultra-wide cameraNo · K12 (China): Yes
- CPU frequency1.8 GHz vs 2 GHz+11%
- Selfie camera8 MP vs 13 MP+62%
- Resolution (width)720 px vs 1,080 px+50%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
- Thickness9.2 mm vs 8.9 mm+3%
Specifications
Side by side
| Design | ||
| Weight | 200 g | 199 g |
| Thickness | 9.2 mm | 8.9 mm |
| Height | 165.2 mm | 162.3 mm |
| Width | 75.7 mm | 77.2 mm |
| Frame | — | Plastic |
| Back | — | Plastic |
| Glass protection | — | Corning Gorilla Glass 5 |
| Colours | Navy Blue, Gray | Forest Green, Midnight Grey, Polar White |
| Display | ||
| Screen size | 6.5″ | 6.5″ |
| Panel | IPS 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 | — | 450 nits |
| Measured brightness | — | 370 nits |
| Screen-to-body ratio | 81.6% | 83.5% |
| Performance | ||
| Chipset | Qualcomm SM4250 Snapdragon 460 | Mediatek MT6769Z Helio G85 |
| Chip maker | Qualcomm | MediaTek |
| Process | 11 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 1.8 GHz | 2 GHz |
| GPU | Adreno 610 | Mali-G52 MC2 |
| AnTuTu score | — | 200,414 |
| Geekbench 6 (multi-core) | — | 1,292 |
| Memory | ||
| RAM | 4 GB | 6 GB |
| Storage (max) | 64 GB | 128 GB |
| Storage (base) | 64 GB | 64 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 48 MP | 48 MP |
| Main camera aperture | f/1.7 | f/1.8 |
| Main sensor size | 1/2.0" | 1/2.0" |
| Rear cameras | 1 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | Yes |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 8 MP | 13 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,020 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 10 W | 18 W |
| Charged in 30 min | — | 38% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | — | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 5 | 5 |
| NFC | No | Yes |
| USB | microUSB 2.0 | USB Type-C 2.0 |
| USB version | — | 2 |
| Infrared port | — | Yes |
| Satellite navigation | GLONASS, GALILEO | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Loudspeaker loudness | — | -30.1 LUFS |
| Fingerprint sensor | Rear | Rear |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| SAR (head) | — | 0.8 W/kg |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | — | MIUI 13 |
