
Samsung Galaxy M31s vs Xiaomi Redmi Note 9 Pro Max vs Redmi Note 8



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Last Updated: Fri, 28 Aug'20
Basic Information
General
- Bluetooth5.0, A2DP, LE5.0, A2DP, LE4.2, A2DP, LE
Design
- Height6.27 inches6.52 inches6.23 inches
- Width2.92 inches3.02 inches2.96 inches
- Thickness0.36 inches0.35 inches0.33 inches
- Weight203 g209 g190 g
- ColorMirage Black, Mirage BlueAurora Blue, Glacier White, Interstellar BlackNeptune Blue, Moonlight White, Space Black, Cosmic Purple
- BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Display
- Screen Size6.5 inches6.67 inches6.3 inches
- Display TypeSuper AMOLED capacitive touchscreenIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
- Display Resolution1080 x 2400 pixels1080 x 2400 pixels1080 x 2340 pixels
- Pixel Density405 ppi395 ppi409 ppi
- Aspect Ratio20:0920:0919.5:9
- ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 5Corning Gorilla Glass 5
- Screen to Body Ratio91 %84.60%81.7%
Performance
- OSAndroid 10, One UI 2.5Android 10.0 MIUI 11Android 9.0 (Pie), MIUI 11
- GPUMali-G72 MP3Adreno 618Adreno 610
- Chipset GPSamsung Exynos 9 Octa 9611Qualcomm SM7125 Snapdragon 720G (8 nm)Qualcomm SDM665 Snapdragon 665 (11 nm)
- CPUOcta core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, 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 Storage128GB 6GB RAM, 128GB 8GB RAM64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM64GB 4GB RAM, 128GB 6GB RAM, 32GB 3GB RAM
- Expandable MemorymicroSDXC (dedicated slot), Up to 512 GBmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Back Camera
- Quad Camera64 MP, f/1.8, 26mm (wide), 1/1.72, 0.8 micron|12 MP, f/2.2, 123degree (ultrawide)|5 MP, f/2.4, (macro)|5 MP, f/2.4, (depth)64 MP, f/1.9, (wide), 1/1.72", 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
- AutofocusPDAFPDAFPDAF
- OISNo
- 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
Front Camera
- Single Camera32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron32 MP, (wide), 1/2.8, 0.8 micron13 MP, f/2.0, (wide), 1/3.1", 1.12micron
- Front Camera Video4K30fps, 1080p30fps1080p30fps1080p30fps
- 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
- Talk TimeUp to 51 Hours (4G LTE)
- Music TimeUp to 125 Hours Audio Playback Time
- ChargingFast charging 25W|Reverse chargingFast charging 33W, 50% in 30 minFast 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, GALILEO, 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 connector, USB On-The-Go2.0, 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 (side-mounted), Accelerometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity SensingFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
- Water ResistantSplash proof
Launch
- Announced On2020, July 302020, March 122019, August
- StatusAvailable. Released 2020, July 30Available. Released 2020, May 12Available. Released 2019, September