| Nokia C21 |
Xiaomi Redmi Note 8 |
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| Hardware and OS | Nokia C21 | Xiaomi Redmi Note 8 |
| Operating system | Android 11 (Go edition) | Android 9.0 (Pie); MIUI 10 |
| Processor | Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55) | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Unisoc SC9863A (28nm) | Qualcomm SDM665 Snapdragon 665 (11 nm) |
| GPU | IMG8322 | Adreno 610 |
| Internal memory | 32GB 2GB RAM, 32GB 3GB RAM, 64GB 3GB RAM | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM |
| External memory | microSDXC (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Nokia C21 | Xiaomi Redmi Note 8 |
| Type | IPS LCD | IPS LCD |
| Size | 6.52 inches, 102.6 cm2(~77.5% screen-to-body ratio) | 6.3" inc |
| Resolution | 720 x 1600 pixels, 20:9 ratio | 1080 x 2340 px |
| Protection | Corning Gorilla Glass 5 | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 81.7% | |
| Display area | 97.4 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | 409 PPI | |
| Colors | Dark Blue, Warm Gray | 16M |
| Connectivity | Nokia C21 | Xiaomi Redmi Note 8 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 - International | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| NFC | No | |
| Bluetooth | 4.2, A2DP | 4.2, A2DP, LE |
| Edge | Yes | |
| CDMA | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - LATAM, Brazil | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, BDS |
| Technology | GSM / HSPA / LTE | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/11.5 Mbps, LTE-A |
| USB | microUSB 2.0 | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Main Camera | Nokia C21 | Xiaomi Redmi Note 8 |
| Camera | 8 MP | |
| Features | LED flash, HDR | |
| Video | 720p@30fps | |
| Camera | Nokia C21 | Xiaomi Redmi Note 8 |
| Main camera | 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 | LED flash, HDR, panorama | |
| Video | 2160p@30fps, 1080p@30/60/120fps, gyro-EIS | |
| Selfie camera | 13 MP, Single | |
| Selfie camera | Nokia C21 | Xiaomi Redmi Note 8 |
| Camera | 5 MP | |
| Features | LED flash | |
| Video | 720p | |
| Multimedia | Nokia C21 | Xiaomi Redmi Note 8 |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Features | Nokia C21 | Xiaomi Redmi Note 8 |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
| Design | Nokia C21 | Xiaomi Redmi Note 8 |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) | |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Glass front, aluminum frame, plastic back | Front/back glass (Gorilla Glass 5) |
| Dimensions | 169.9 x 77.9 x 8.8 mm (6.69 x 3.07 x 0.35 in) | 158.3 x 75.3 x 8.4 mm |
| Weight | 195 g (6.88 oz) | 190 g |
| Battery | Nokia C21 | Xiaomi Redmi Note 8 |
| Type | Li-Ion 3000 mAh, removable | |
| Battery capacity | 4000 mAh, Non-removable Li-Po | |
| Other | Nokia C21 | 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 | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port |
