
Samsung Galaxy M21 vs Xiaomi Redmi Note 9 Pro vs Redmi Note 8



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Last Updated: Sat, 4 Jul'20
Basic Information
General
- Bluetooth5.0, A2DP, LE5.0, A2DP, LE4.2, A2DP, LE
Design
- Height6.26 inches6.53 inches6.23 inches
- Width2.96 inches3.02 inches2.96 inches
- Thickness0.35 inches0.35 inches0.33 inches
- Weight188 g209 g190 g
- ColorMidnight Blue, BlackAurora Blue, Glacier White, Interstellar BlackNeptune Blue, Moonlight White, Space Black, Cosmic Purple
- BuildGlass front (Gorilla Glass 3), plastic back, plastic frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Display
- Screen Size6.4 inches6.67 inches6.3 inches
- Display TypeSuper AMOLED capacitive touchscreenIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
- Display Resolution1080 x 2340 pixels1080 x 2400 pixels1080 x 2340 pixels
- Pixel Density403 ppi395 ppi409 ppi
- Aspect Ratio19.5:920:0919.5:9
- ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 5Corning Gorilla Glass 5
- Screen to Body Ratio84.20%84.50%81.7%
Performance
- GPUMali-G72 MP3Adreno 618Adreno 610
- OSAndroid 10.0 One UI 2Android 10.0 MIUI 11Android 9.0 (Pie), MIUI 11
- Chipset GPExynos 9611 (10nm)Qualcomm SM7125 Snapdragon 720G (8 nm)Qualcomm SDM665 Snapdragon 665 (11 nm)
- CPUOcta-core (4x2.3 GHz Cortex-A73 and 4x1.7 GHz Cortex-A53)Octa-core (2x2.3 GHz Kryo 465 Gold and 6x1.8 GHz Kryo 465 Silver)Octa-core (4x2.0 GHz Kryo 260 Gold 4x1.8 GHz Kryo 260 Silver)
Memory & Storage
- RAM/Internal Storage64GB 4GB RAM, 128GB 6GB RAM64GB 4GB RAM, 128GB 6GB RAM, 128GB 4GB RAM64GB 4GB RAM, 128GB 6GB RAM, 32GB 3GB RAM
- Expandable MemorymicroSDXC (dedicated slot)microSDXC (dedicated slot)microSDXC (dedicated slot)
Back Camera
- Triple Camera48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron|8 MP, f/2.2, 12mm (ultrawide), 1/4.0, 1.12 micron|5 MP, f/2.2, (depth)
- AutofocusPDAFPDAFPDAF
- Back Camera Video4K30fps, 1080p30fps, gyro-EIS4K30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS2160p30fps, 1080p30/60/120fps, 720p960fps, gyro-EIS
- Back Camera FeaturesLED flash, panorama, HDRLED flash, HDR, panoramaHDR, panorama
- Quad Camera48 MP, f/1.8, (wide), 1/2.25", 0.8micron, PDAF | 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12micron | 5 MP, f/2.4, (macro), 1.12micron | 2 MP, f/2.4, (depth)48 MP, f/1.8, (wide), 1/2, 0.8 micron|8 MP, f/2.2, 13mm (ultrawide), 1/4, 1.12 micron|2 MP, f/2.4, 1/5, 1.75 micron (dedicated macro camera)|2 MP, f/2.4, 1/5, 1.75 micron, depth sensor
Front Camera
- Single Camera20 MP, f/2.0, 26mm (wide)16 MP, f/2.5, (wide), 1.0micron13 MP, f/2.0, (wide), 1/3.1", 1.12micron
- Front Camera Video1080p30fps1080p30fps1080p30fps
- Front Camera FeaturesHDRHDR, panoramaHDR, panorama
Sound
- HeadPhone JackYesYesYes
- LoudspeakerYesYesYes
- Audio FeaturesDolby Atmos
Battery
- Battery Capacity6000 mAh battery5020 mAh battery4000 mAh battery
- User ReplaceableNon-removableNon-removableNon-removable
- ChargingFast charging 15WFast charging 18WFast charging 18W
- Battery TypeLi-PoLi-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, hotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
- GPSYes, with A-GPS, GLONASS, BDSYes, with A-GPS, GLONASS, GALILEO, BDS, NavICYes, with A-GPS, GLONASS, GALILEO, BDS
- RadioFM radio, RDS, recordingFM radio, recordingFM radio
- USB2.0, Type-C 1.0 reversible connector2.0, Type-C 1.0 reversible connector2.0, Type-C 1.0 reversible connector, USB On-The-Go
- NFCNoNo
- SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
- Network SupportGSM / HSPA / LTEGSM / HSPA / LTEGSM / HSPA / LTE
Miscellaneous Features
- SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
- Water ResistantWater-repellent coating
Launch
- Announced On2020, March 182020, March 122019, August
- StatusAvailable. Released 2020, March 23Available. Released 2020, March 17Available. Released 2019, September