| OPPO F21s Pro 4G |
Xiaomi Redmi Note 8 |
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| Hardware and OS | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Operating system | Android v12 | Android 9.0 (Pie); MIUI 10 |
| Processor | 2.4 GHz, Octa Core Processor | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| Chipset | Qualcomm Snapdragon 680 | Qualcomm SDM665 Snapdragon 665 (11 nm) |
| GPU | Adreno 610 | Adreno 610 |
| Cores | 4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver | |
| Internal memory | 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Ram | 8 GB | |
| Storage | 128 GB | |
| Card Slot | Yes, upto 512 GB | |
| Display | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Type | Color AMOLED Screen (16.7M) | IPS LCD |
| Size | 6.43 inches, 1080 x 2400 pixels, 90 Hz | 6.3" inc |
| Resolution | 1080 x 2340 px | |
| Protection | Corning Gorilla Glass 5 | |
| Touchscreen | capacitive touchscreen | |
| Aspect Ratio | 20:9 | |
| Screen-to-Body Ratio | 81.7% | |
| Glass Type | Corning Gorilla Glass | |
| Display area | 97.4 cm2 | |
| PPI | ~409 PPI | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Screen to Body Ratio | ~ 90.8% | |
| Pixel Density | 409 PPI | |
| Touch | Yes, with Multitouch | |
| Colors | 16M | |
| Features | 180Hz touch Sampling Rate, 600 nits, 97% NTSC/93% DCI-P3 Gentle mode | |
| Connectivity | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | Yes | HSDPA 850 / 900 / 2100 |
| 4G Network | Yes | 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, dual-band, Wi-Fi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | Yes, v5.1 | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Built-in GPS, A-GPS, BeiDou, GLONASS, Galileo, QZSS | Yes, with A-GPS, GLONASS, BDS |
| Speed | HSPA 42.2/11.5 Mbps, LTE-A | |
| 5G Network | No | |
| USB | Yes, USB-C | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| USB Features | USB on-the-go, USB Charging | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | |
| Main Camera | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Camera | Punch Hole 32 MP f/2.4 | |
| Flash | Yes, LED | |
| Features | Photo, Video, Night, PRO, PANO, Portrait, Extra HD, SLO-MO, TIME-LAPSE, Microlens, STICKER, and Text scanner | |
| Video | 1080p | |
| Selfie camera | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Camera | 64 MP f/1.7 (Wide Angle) 2 MP f/2.4 (Microscope) 2 MP f/2.4 (Mono) with autofocus | |
| Video | 1080p, 720p | |
| Camera | OPPO F21s Pro 4G | 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 | |
| Multimedia | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | |
| Design | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Colors | Neptune Blue, Moonlight White, Space Black | |
| Body build | Front/back glass (Gorilla Glass 5) | |
| Dimensions | 73.2 x 159.9 x 7.66 mm | 158.3 x 75.3 x 8.4 mm |
| Weight | 182 g | 190 g |
| Dual Sim | Yes | |
| Sim Type | Dual Sim, GSM GSM | |
| Sim Size | Nano Nano SIM | |
| Battery | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Type | Non-Removable Battery | |
| Fast Charging | Yes, 33W Fast Charging | |
| Battery capacity | 4500 mAh, Li-Po Battery | 4000 mAh, Non-removable Li-Po |
| Other | OPPO F21s Pro 4G | 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 | |
| Features | OPPO F21s Pro 4G | Xiaomi Redmi Note 8 |
| Sensors | Geomagnetic Sensor, Proximity Sensor, Optical Sensor, Accelerometer, Gravity Sensor, Gyroscope, Pedometer, Compass | |
| Fingerprint Sensor | Yes, In Display | |
| Face Unlock | Yes |
