| Redmi K40S |
Xiaomi Redmi Note 8 |
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| Hardware and OS | Redmi K40S | Xiaomi Redmi Note 8 |
| Operating system | Android 12 | Android 9.0 (Pie); MIUI 10 |
| Processor | Qualcomm Snapdragon 870 5G - 7 nm , octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Qualcomm SDM665 Snapdragon 665 (11 nm) | |
| GPU | Adreno 650 | Adreno 610 |
| RAM | 6GB / 8GB / 12GB | |
| Internal memory | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | |
| Internal Storage | UFS 3.1 : 128GB / 256GB | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Memory Card Slot | No | |
| User Interface | MIUI 13 | |
| Display | Redmi K40S | Xiaomi Redmi Note 8 |
| Type | AMOLED, 120Hz | IPS LCD |
| Size | 6.67" , ~86.6% screen-to-body ratio | 6.3" inc |
| Resolution | 1080 x 2400p | 1080 x 2340 px |
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 81.7% | |
| Display area | 97.4 cm2 | |
| Features | Brightness: 1300 nits (peak) , 20:9 aspect ratio, HDR10 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | ~395 ppi | 409 PPI |
| Colors | 16M | |
| Connectivity | Redmi K40S | Xiaomi Redmi Note 8 |
| 5G Network | 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| NFC | Yes | |
| 4G Network | 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Network | GSM / HSPA / LTE | |
| SIM | Nano SIM | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Dual SIM | Yes with dual stand-by | |
| Wireless Charging | No | |
| Bluetooth | 4.2, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | A-GPS, GLONASS (1), BDS (3), GALILEO (2), QZSS (2), NavIC | Yes, with A-GPS, GLONASS, BDS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A, 5G | HSPA 42.2/11.5 Mbps, LTE-A |
| USB | Type-C 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Camera | Redmi K40S | Xiaomi Redmi Note 8 |
| Main camera | Triple: 48 MP, f/1.8, (wide), 1/2", 0.8 ?m, PDAF, OIS, 8 MP, 119 (ultrawide), 2 MP, f/2.4, (macro), HDR, panorama | 48 MP, Quad |
| Specs | 48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm -2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera) -2 MP, f/2.4, 1/5", 1.75µm, depth sensor | |
| Features | Dual - LED , Dual - tone | LED flash, HDR, panorama |
| Video | 2160p@30fps, 1080p@30/60/120fps, gyro-EIS | |
| Selfie camera | 20 MP, (wide) | 13 MP, Single |
| Multimedia | Redmi K40S | Xiaomi Redmi Note 8 |
| Loudspeaker | Stereo speakers , 24-bit/192kHz audio | |
| 3.5 mm Jack | No | Yes |
| Radio | No | FM radio |
| Design | Redmi K40S | Xiaomi Redmi Note 8 |
| Waterproof | Splash resistant | |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Front/back glass (Gorilla Glass 5) | |
| Dimensions | 163.2 x 76 x 7.7 mm | 158.3 x 75.3 x 8.4 mm |
| Weight | 195g | 190 g |
| Battery | Redmi K40S | Xiaomi Redmi Note 8 |
| Capacity | 4500mAh Li-Po, 67W fast charging, PD 3.0, QC 3 | |
| Placement | Non-removable | |
| Battery capacity | 4000 mAh, Non-removable Li-Po | |
| Other | Redmi K40S | Xiaomi Redmi Note 8 |
| SAR | SAR - 0.26 W/kg (head) 1.00 W/kg (body) SAR EU - 0.26 W/kg (head) 1.00 W/kg (body) | |
| Release date | 2019, August | |
| Sensors | Side-mounted fingerprint, accelerometer, gyro, proximity, compass, color spectrum | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port |
