Xiaomi Redmi K40 vs Xiaomi Redmi 9
Comparing 2 products
| General Overview | ||
| Device Type | Bar | Bar |
| Model | M2012K11AC, M2011K2C | M2004J19G |
| Announced | 2021, February | 2020, June |
| Released | 2021, February | 2020, June |
| Status | Available | Available |
| Design | ||
| Type | Bar | Bar |
| Dimensions | 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) | 163.3 x 77 x 9.1 mm (6.43 x 3.03 x 0.36 in) |
| Weight | 196 g (6.91 oz) | 198 g (6.98 oz) |
| Colors | Black, White, Aurora | Carbon Gray, Sunset Purple, Ocean Green |
| Protection | - | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Network | ||
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 | 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 |
| 5G Network | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | - |
| SIM | Nano SIM | Nano SIM |
| Dual SIM | Yes, Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Display | ||
| Display Type | Super AMOLED | IPS LCD |
| Size | 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) | 6.53 inches, 104.7 cm2 (~83.2% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels | 1080 x 2340 pixels |
| Display Colors | 16M colors | 16M colors |
| Pixel Density | 395 ppi density | 395 ppi density |
| Touch Screen | Capacitive Touchscreen | Capacitive Touchscreen |
| Display Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 3 |
| Features | 120Hz HDR10+ 1300 nits (peak) | 400 nits typ. brightness (advertised) |
| Media | ||
| FM Radio | No | Yes |
| Earphone Jack | No | Yes |
| Camera | ||
| Camera Set | Triple Cameras | Quad Cameras |
| Main Camera | 48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF | 13 MP, f/2.2, 28mm (wide), 1/3.1", 1.12µm, PDAF |
| 2nd Camera | 8 MP, f/2.2, 119˚ (ultrawide) | 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm |
| 3rd Camera | 5 MP, 50mm (macro), 1/5.0", 1.12µm | 5 MP, f/2.4, (macro) |
| Camera Video | 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS | 1080p@30fps |
| Features | HDR, panorama | HDR, panorama |
| Flash | LED Flash | LED Flash |
| Selfie Set | Single Camera | Single Camera |
| Selfie Camera | 20 MP, (wide), 1/3.4", 0.8µm | 8 MP, f/2.0, 27mm (wide) |
| Selfie Video | 1080p@30fps, 720p@120fps | 1080p@30fps |
| Features | HDR | HDR |
| 4th Camera | - | 2 MP, f/2.4, (depth) |
| Software | ||
| OS | Android 11 | Android 10.0 |
| User Interface | MIUI 12 | MIUI 12 |
| Hardware | ||
| Chipset | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) | Mediatek Helio G80 (12 nm) |
| CPU | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) |
| GPU | Adreno 650 | Mali-G52 MC2 |
| RAM | 8/12 GB | 3/4 GB |
| Internal Storage | 128/256 GB | 32/64 GB |
| Card Slot | No | Yes, microSD, up to 256 GB |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum | Fingerprint (rear-mounted), accelerometer, gyro, proximity |
| Connectivity | ||
| Bluetooth | 5.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-fi | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Wi-fi Hotspot | Yes | Yes |
| USB | USB Type-C 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC | Yes, with A-GPS, GLONASS, BDS |
| NFC | Yes | Yes |
| Data | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A, 5G | HSPA 42.2/5.76 Mbps, LTE-A |
| Battery | ||
| Battery Type | Li-Poly (Lithium Polymer) | Li-Poly (Lithium Polymer) |
| Capacity | 4520 mAh, Battery | 5020 mAh battery |
| Placement | Non-removable | Non-removable |
| Fast Charging | Yes, 33W, 100% in 52 min (advertised), Power Delivery 3.0, Quick Charge 3+ | Yes, 18W |
