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- B40 vs 12
Caterpillar B40 vs Xiaomi 12
What B40 does better (2) and where 12 wins (13) — every spec side by side.
Dimensions
Size comparison
B4012
| B40 | 12 | Difference | |
|---|---|---|---|
| Height | 145 mm | 152.7 mm | −7.7 mm |
| Width | 62 mm | 69.9 mm | −7.9 mm |
| Thickness | 18 mm | 8.2 mm | +9.8 mm |
| Weight | 157 g | 179 g | −22 g |
Drawn to the same scale from the official dimensions (front and side).
Why is B40 better than 12?
- Memory card slotYes · 12: No
- Weight157 g vs 179 g+14%
Why is 12 better than B40?
- Battery capacity1,800 mAh vs 4,500 mAh2.5×
- Main camera2 MP vs 50 MP25×
- Screen size2.4″ vs 6.3″2.6×
- OLED panelNo · B40: Yes
- Optical stabilisationNo · B40: Yes
- Telephoto cameraNo · B40: Yes
- 5GNo · B40: Yes
- NFCNo · B40: Yes
- Resolution (width)240 px vs 1,080 px4.5×
- Thickness18 mm vs 8.2 mm2.2×
- Rear cameras1 vs 22×
- Ultra-wide cameraNo · B40: Yes
Specifications
Side by side
| Design | ||
| Weight | 157 g | 179 g |
| Thickness | 18 mm | 8.2 mm |
| Height | 145 mm | 152.7 mm |
| Width | 62 mm | 69.9 mm |
| Frame | — | Aluminium |
| Back | — | Glass |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Glass protection | — | Corning Gorilla Glass Victus |
| Colours | Black | Gray, Blue, Purple, Green |
| Display | ||
| Screen size | 2.4″ | 6.3″ |
| Panel | Farb-Display | AMOLED |
| OLED panel | No | Yes |
| Resolution (width) | 240 px | 1,080 px |
| Resolution (height) | 320 px | 2,400 px |
| Pixel density | — | 419 ppi |
| Refresh rate | — | 120 Hz |
| Peak brightness | — | 1,100 nits |
| Measured brightness | — | 896 nits |
| Screen-to-body ratio | — | 89.2% |
| HDR | — | Yes |
| Performance | ||
| Chipset | Unisoc T117 | Qualcomm SM8450 Snapdragon 8 Gen 1 |
| Chip maker | Unisoc | Qualcomm |
| Process | — | 4 nm |
| CPU cores | — | 8 |
| CPU frequency | — | 3 GHz |
| GPU | — | Adreno 730 |
| AnTuTu score | — | 985,115 |
| Geekbench 6 (multi-core) | — | 3,652 |
| 3DMark Wild Life Extreme | — | 2,255 |
| Memory | ||
| RAM | — | 12 GB |
| Storage (max) | — | 256 GB |
| Storage (base) | — | 128 GB |
| Storage type | — | UFS 3.1 |
| Memory card slot | Yes | No |
| Camera | ||
| Main camera | 2 MP | 50 MP |
| Main camera aperture | — | f/1.9 |
| Main sensor size | — | 1/1.56" |
| Rear cameras | 1 | 2 |
| Optical stabilisation | No | Yes |
| Ultra-wide camera | No | Yes |
| Telephoto camera | No | Yes |
| Optical zoom | — | 2.1× |
| Max video | — | 8K |
| 4K video frame rate | — | 60 fps |
| Selfie camera | — | 32 MP |
| 4K selfie video | — | No |
| Battery | ||
| Battery capacity | 1,800 mAh | 4,500 mAh |
| Battery type | — | Li-Po |
| Wired charging | — | 67 W |
| Charged in 30 min | — | 77% |
| Wireless charging | — | Yes |
| Wireless charging power | — | 50 W |
| Reverse wireless charging | — | Yes |
| Connectivity | ||
| 5G | No | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | — | Wi-Fi 6E |
| Bluetooth | 5 | 5.2 |
| NFC | No | Yes |
| USB | — | USB Type-C 2.0 |
| USB version | — | 2 |
| Infrared port | — | Yes |
| Dual-band GPS | — | Yes |
| Satellite navigation | — | GLONASS, GALILEO, BDS, QZSS, NavIC |
| Features | ||
| Stereo speakers | — | Yes |
| 3.5 mm headphone jack | — | No |
| Loudspeaker loudness | — | -25.3 LUFS |
| Fingerprint sensor | — | Under display |
| Sensors | — | Fingerprint (under display, optical), accelerometer, gyro, compass |
| SAR (head) | — | 0.6 W/kg |
| Software | ||
| OS at launch | — | Android 12 |
| Platform | — | Android |
| Interface | — | MIUI 13 |
