Xiaomi Redmi Note 9 vs Samsung Galaxy A21S
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Last Updated: Tue, 25 Aug'20
General
- Bluetooth5.0, A2DP, LE5.0, A2DP, LE
Design
- Height6.39 inches6.44 inches
- Width3.04 inches2.96 inches
- Thickness0.35 inches0.35 inches
- Weight200 g192 g
- ColorArctic White, Aqua Green, Pebble Grey, Scarlet RedBlack, White, Blue
- BuildGlass front (Gorilla Glass 5), plastic frameBack Panel: Plastic
Display
- Screen Size6.53 inches6.5 inches
- Display TypeIPS LCD capacitive touchscreenPLS TFT capacitive touchscreen
- Display Resolution1080 x 2340 pixels720 x 1600 pixels
- Pixel Density395 ppi270 ppi
- Aspect Ratio19.5:920:09
- ProtectionCorning Gorilla Glass 5
- Screen to Body Ratio83.50%82.80%
Performance
- GPUMali-G52 MC2Mali-G52
- OSAndroid 10 MIUI 11Android 10, One UI 2.0
- Chipset GPMediaTek Helio G85 (12nm)Exynos 850 (8nm)
- CPUOcta-core (2x2.0 GHz Cortex-A75, 6x1.8 GHz Cortex-A55)Octa-core (4x2.0 GHz Cortex-A55, 4x2.0 GHz Cortex-A55)
Memory & Storage
- RAM/Internal Storage64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM64GB 4GB RAM, 64GB 6GB RAM
- Expandable MemorymicroSDXC (dedicated slot)microSDXC (dedicated slot), Up to 512GB
Back Camera
- Quad Camera48 MP, f/1.8, 26mm (wide), 1/2.0, 0.8 micron|8 MP, f/2.2, 118degree (ultrawide), 1/4.0, 1.12 micron|2 MP, f/2.4, (macro)|2 MP, f/2.4, (depth)48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron|8 MP, f/2.2, 123degree (ultrawide), 1/4.0, 1.12 micron|2 MP, f/2.4, (macro)|2 MP, f/2.4, (depth)
- AutofocusPDAF, AFPDAF
- Back Camera Video1080p30fps1080p30fps
- Back Camera FeaturesLED flash, HDR, panoramaLED flash, panorama, HDR
Front Camera
- Single Camera13 MP, f/2.3, 29mm (normal), 1/3.1, 1.12 micron13 MP, f/2.2, (wide), 1/3.1, 1.12 micron
- Front Camera Video1080p30fps1080p30fps
- Front Camera FeaturesHDR, panorama
Sound
- HeadPhone JackYesYes
- LoudspeakerYesYes
Battery
- Battery Capacity5020 mAh battery5000 mAh battery
- User ReplaceableNon-removableNon-removable
- ChargingFast charging 18W|Reverse charging 9WFast charging 15W
- Battery TypeLi-PoLi-Po
Communications
- WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
- GPSYes, with A-GPS, GLONASS, GALILEO, BDSYes, with A-GPS, GLONASS, GALILEO, BDS
- RadioUnspecifiedUnspecified
- USB2.0, Type-C 1.0 reversible connector2.0, Type-C 1.0 reversible connector
- NFCYesNo
- SIMDual SIM (Nano-SIM, dual stand-by)Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
- Network SupportGSM / HSPA / LTEGSM / HSPA / LTE
Miscellaneous Features
- SensorsFingerprint (rear-mounted), G-sensor/Gyroscope/L-Sensor/P-Sensor/E-CampassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
- Water ResistantSplash-proof nano coating
Launch
- Announced On2020, April 302020, May 15
- StatusAvailable. Released 2020, July 24Available. Released 2020, June 17
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