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- B40 vs Redmi 9 Activ
Cat B40 vs Xiaomi Redmi 9 Activ
What B40 does better (1) and where Redmi 9 Activ wins (9) — every spec side by side.
vs
2.1Display2.4
3.1Camera2.7
2.1Battery3.5
5.4Features2.4
Dimensions
Size comparison
B40Redmi 9 Activ
| B40 | Redmi 9 Activ | Difference | |
|---|---|---|---|
| Height | 145 mm | 164.9 mm | −19.9 mm |
| Width | 62 mm | 77.1 mm | −15.1 mm |
| Thickness | 18 mm | 9 mm | +9 mm |
| Weight | 157 g | 194 g | −37 g |
Drawn to the same scale from the official dimensions (front and side).
Why is B40 better than Redmi 9 Activ?
- Weight157 g vs 194 g+24%
Why is Redmi 9 Activ better than B40?
- Battery capacity1,800 mAh vs 5,000 mAh2.8×
- Main camera2 MP vs 13 MP6.5×
- Screen size2.4″ vs 6.5″2.7×
- Pixel density167 ppi vs 269 ppi+61%
- Resolution (width)240 px vs 720 px3×
- Screen-to-body ratio19.8% vs 81%4.1×
- CPU cores1 vs 88×
- Thickness18 mm vs 9 mm2×
- Dual SIMNo · B40: Yes
Specifications
Side by side
| Design | ||
| Weight | 157 g | 194 g |
| Thickness | 18 mm | 9 mm |
| Height | 145 mm | 164.9 mm |
| Width | 62 mm | 77.1 mm |
| Ingress protection | IP69 | — |
| Water resistance (IPx) | IPx9 | — |
| Colours | Black | Carbon Black, Coral Green, Metallic Purple |
| Display | ||
| Screen size | 2.4″ | 6.5″ |
| Panel | TFT LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 240 px | 720 px |
| Resolution (height) | 320 px | 1,600 px |
| Pixel density | 167 ppi | 269 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | — | 400 nits |
| Screen-to-body ratio | 19.8% | 81% |
| Performance | ||
| Chipset | Unisoc T117 | Mediatek MT6765G Helio G35 |
| Chip maker | Unisoc | MediaTek |
| Process | — | 12 nm |
| CPU cores | 1 | 8 |
| CPU frequency | — | 2.3 GHz |
| GPU | — | PowerVR GE8320 |
| Memory | ||
| RAM | — | 6 GB |
| Storage (max) | — | 128 GB |
| Storage (base) | — | 64 GB |
| Storage type | — | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 2 MP | 13 MP |
| Main camera aperture | — | f/2.2 |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | — | 1080p |
| Selfie camera | — | 5 MP |
| 4K selfie video | — | No |
| Battery | ||
| Battery capacity | 1,800 mAh | 5,000 mAh |
| Battery type | Li-Ion | Li-Po |
| Wired charging | — | 10 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | No | Yes |
| Wi-Fi standard | — | Wi-Fi 4 |
| Bluetooth | 5 | 5 |
| NFC | No | No |
| USB | USB Type-C 2.0 | microUSB 2.0 |
| USB version | 2 | — |
| Satellite navigation | — | GLONASS, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | — | Rear |
| Sensors | Accelerometer | Fingerprint (rear-mounted), accelerometer, proximity |
| SAR (head) | — | 0.51 W/kg |
| Software | ||
| OS at launch | KaiOS 2.5 | Android 10 |
| Platform | iOS | Android |
| Interface | — | MIUI 12 |
