Xiaomi Redmi K40S vs Redmi K40
72
out of 100
VS
68
out of 100
Here we compared two flagship smartphones: the 6.67-inch Xiaomi Redmi K40S (with Qualcomm Snapdragon 870) that was released on March 17, 2022, against the Xiaomi Redmi K40, which is powered by Qualcomm Snapdragon 870 5G and came out 13 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Key differences
Reasons to consider the Xiaomi Redmi K40S
- Newer Bluetooth version (v5.2)
- Optical image stabilization
- Supports higher wattage charging (67W versus 33W)
- More recent OS version: Android 12 versus 11
- The phone is 1-year and 1-month newer
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.
Value for money
You can enter your local prices of these phones (in USD or other currency) and click on the "Calculate" button to see which one has a better value for money.
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | AMOLED |
| Size | 6.67 inches | 6.67 inches |
| Resolution | 1080 x 2400 pixels | 1080 x 2400 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 395 ppi | 395 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 500 nits | 500 nits |
| Max rated brightness in HDR | 1300 nits | 1300 nits |
| HDR support | Yes, HDR10+ | Yes, HDR10+ |
| Screen protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 |
| Screen-to-body ratio | 86.6% | 85.9% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display - DC Dimming |
Design and build
| Height | 163.2 mm (6.43 inches) | 163.7 mm (6.44 inches) |
| Width | 75.95 mm (2.99 inches) | 76.4 mm (3.01 inches) |
| Thickness | 7.7 mm (0.3 inches) | 7.8 mm (0.31 inches) |
| Weight | 195 g (6.88 oz) | 196 g (6.91 oz) |
| Waterproof | IP53 | IP53 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | Glass | Glass |
| Frame material | Plastic | Plastic |
| Colors | Black, Gray, Blue, Green | White, Black |
| Fingerprint scanner | Yes, in home button | Yes, in home button |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 870 | Qualcomm Snapdragon 870 5G |
| Max clock | 3200 MHz | 3200 MHz |
| CPU cores | 8 (1 + 3 + 4) | 8 (1 + 3 + 4) |
| Architecture | - 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55) - 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77) - 1 core at 3.2 GHz: Kryo 585 Prime (Cortex-A77) |
- 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55) - 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77) - 1 core at 3.2 GHz: Kryo 585 Prime (Cortex-A77) |
| L3 cache | 4 MB | 4 MB |
| Lithography process | 7 nanometers | 7 nanometers |
| Graphics | Adreno 650 | Adreno 650 |
| GPU clock | 670 MHz | 670 MHz |
| FLOPS | ~1372 GFLOPS | ~1372 GFLOPS |
Benchmarks
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
| CPU | 186956 | 197488 |
| GPU | 246714 | 242243 |
| Memory | 126648 | 106088 |
| UX | 151585 | 150139 |
| Total score | 706546 | 693717 |
3DMark Wild Life Performance
| Stability | 99% | 92% |
| Graphics test | 25 FPS | 25 FPS |
| Graphics score | 4313 | 4282 |
| Web score | 9430 | 9748 |
| Video editing | 7238 | 7085 |
| Photo editing | 27520 | 30295 |
| Data manipulation | 9091 | 9337 |
| Writing score | 13354 | 14976 |
AnTuTu Benchmark Results (183rd and 197th place)
Memory
| RAM size | 6, 8, 12 GB | 6, 8, 12 GB |
| Memory type | LPDDR5 | LPDDR5 |
| Memory clock | 2750 MHz | 2750 MHz |
| Channels | 4 | 4 |
| Storage size | 128, 256 GB | 128, 256 GB |
| Storage type | UFS 3.1 | UFS 3.1 |
| Memory card | No | No |
Software
| Operating system | Android 12 | Android 11 |
| ROM | MIUI 13 | MIUI 12.5 Enhanced |
Battery
| Capacity | 4500 mAh | 4520 mAh |
| Max charge power | 67 W | 33 W |
| Battery type | Li-Po | Li-Po |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes (50% in 14 min) | Yes (70% in 30 min) |
| Full charging time | 0:39 hr | 0:52 hr |
Camera
| Matrix | 48 megapixels | 48 megapixels |
| Image resolution | 8000 x 6000 | 8000 x 6000 |
| Zoom | Digital | Digital |
| Flash | Dual LED | LED |
| Stabilization | Optical | Digital |
| 8K video recording | No | No |
| 4K video recording | Up to 30FPS | Up to 30FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 960 FPS (720p) | 960 FPS (720p) |
| Angle of widest lens | 119° | 119° |
| Lenses | 3 (48 MP + 8 MP + 2 MP) | 3 (48 MP + 8 MP + 5 MP) |
| Wide (main) lens | - 48 MP - Aperture: f/1.8 - Pixel size: 0.8 micron - Sensor: 1/2.0", Sony IMX582 (Exmor-RS CMOS) - Phase autofocus - Optical stabilization |
- 48 MP - Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/2.0" (CMOS) - Phase autofocus |
| Ultra-wide lens | - 8 MP - Aperture: f/2.2 - Pixel size: 1.12 micron - Sensor: 1/4.0" (CMOS) |
- 8 MP - Aperture: f/2.2 - Pixel size: 1.12 micron - Sensor: 1/4.0" (CMOS) |
| Macro lens | - 2 MP - Aperture: f/2.4 - Focal length: 50 mm - Pixel size: 1.12 micron - Sensor: 1/5.0" (CMOS) |
- 5 MP - Aperture: f/2.4 - Focal length: 50 mm - Pixel size: 1.12 micron - Sensor: 1/5.0" (CMOS) |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode - Pro mode |
| Megapixels | 20 megapixels | 20 megapixels |
| Image resolution | 4608 x 3456 | 4608 x 3456 |
| Aperture | f/2.5 | f/2.5 |
| Focal length | - | 26 mm |
| Pixel size | 0.8 microns | 0.8 microns |
| Sensor type | Exmor-RS CMOS | CMOS |
| Sensor size | 1/2" | 1/3.4" |
| Video resolution | 1080p (Full HD) at 30 FPS | 1080p (Full HD) at 30 FPS |
Connectivity
| Wi-Fi standard | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) | Wi-Fi 6E (802.11 a/b/g/n/ac/ax) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5.2 | 5.1 |
| Bluetooth features | LE, HID, A2DP | LE, HID, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo, NAVIC |
| NFC* | Yes | Yes |
| Infrared port | Yes | Yes |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | No | No |
| Hybrid slot | No | No |
| LTE Cat* | 20 | 20 |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | Yes |
Other
| Category | Flagship | Flagship |
| Announced | March 2022 | February 2021 |
| Release date | March 2022 | March 2021 |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 67 W | - |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
These smartphones have a lot in common, but we would recommend the Xiaomi Redmi K40S. It has a better display, camera, software, and design.
Cast your vote
Total votes: 79