Xiaomi Redmi K40S vs. Redmi K40S: A Surprisingly Close Match
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🏆 Quick Verdict
Surprisingly, these are identical devices. Both Redmi K40S models share the same Snapdragon 870 chipset, 67W charging, and overall feature set. The choice comes down to price and availability, not performance.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K40S | Xiaomi Redmi K40S |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 | 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 |
| 5G bands | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G |
| CDMA2000 1x | CDMA2000 1x | |
| Launch | ||
|---|---|---|
| Announced | 2022, March 17 | 2022, March 17 |
| Status | Available. Released 2022, March 17 | Available. Released 2022, March 17 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass 5), plastic back | Glass front (Gorilla Glass 5), plastic back |
| Dimensions | 163.2 x 76 x 7.7 mm (6.43 x 2.99 x 0.30 in) | 163.2 x 76 x 7.7 mm (6.43 x 2.99 x 0.30 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 195 g (6.88 oz) | 195 g (6.88 oz) |
| Splash resistant | Splash resistant | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~86.6% screen-to-body ratio) | 6.67 inches, 107.4 cm2 (~86.6% screen-to-body ratio) |
| Type | AMOLED, 120Hz, HDR10+, 1300 nits (peak) | AMOLED, 120Hz, HDR10+, 1300 nits (peak) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) |
| Chipset | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) |
| GPU | Adreno 650 | Adreno 650 |
| OS | Android 12, MIUI 13 | Android 12, MIUI 13 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
| UFS 3.1 | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama | Color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama |
| Single | 20 MP, (wide) | 20 MP, (wide) |
| Triple | 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF, OIS 8 MP, 119˚ (ultrawide) 2 MP (macro) | 48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF, OIS 8 MP, 119˚ (ultrawide) 2 MP (macro) |
| Video | 4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS | 4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Single | 20 MP, (wide) | 20 MP, (wide) |
| Video | 1080p@30/120fps | 1080p@30/120fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | No |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| 24-bit/192kHz audio | 24-bit/192kHz audio | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE | 5.2, A2DP, LE |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 67W wired, PD3.0, QC3, 100% in 38 min | 67W wired, PD3.0, QC3, 100% in 38 min |
| Type | Li-Po 4500 mAh | Li-Po 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Gray, Blue, Green | Black, Gray, Blue, Green |
| Price | About 260 EUR | About 260 EUR |
Xiaomi Redmi K40S
- Excellent performance with Snapdragon 870
- Fast 67W charging
- Vibrant AMOLED display
- Competitive price
- Plastic build
- No official IP rating
- Software updates can be inconsistent
Xiaomi Redmi K40S
- Excellent performance with Snapdragon 870
- Fast 67W charging
- Vibrant AMOLED display
- Competitive price
- Plastic build
- No official IP rating
- Software updates can be inconsistent
Display Comparison
Both Redmi K40S models feature a 6.67-inch Super AMOLED display with a 120Hz refresh rate and a Full HD+ resolution. Expect vibrant colors, smooth scrolling, and excellent viewing angles. There are no reported differences in display quality between the two.
Camera Comparison
The Redmi K40S boasts a triple-camera system typically consisting of a 48MP main sensor, an 8MP ultrawide lens, and a 5MP macro lens. Both models should deliver consistent image quality, with good detail and dynamic range. Software optimizations might vary slightly, but the hardware remains the same.
Performance
Powered by the Snapdragon 870, both devices offer exceptional performance for everyday tasks, gaming, and multitasking. The 7nm process ensures efficiency, and the octa-core CPU handles demanding applications with ease. No performance discrepancies are expected.
Battery Life
Both models are equipped with a 4500mAh battery and support 67W fast charging, capable of reaching 100% in approximately 38 minutes. Battery life should be comparable, offering a full day of moderate usage.
Buying Guide
Who should buy a Redmi K40S? This phone is ideal for users seeking a flagship-level processor and fast charging without breaking the bank. Anyone looking for a powerful mid-range device with a great display and camera should consider it. Since both models are identical, the deciding factor is price and availability.