Samsung Galaxy M31 vs Xiaomi Redmi Note 9 Specs Comparison
Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.
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| Samsung Galaxy M31 | Xiaomi Redmi Note 9 |
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Released
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Mar 05, 2020
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Released
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May 12, 2020
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6.4-inch · 2340x1080px
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6.5-inch · 2340x1080px
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Quad camera
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Quad camera
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6GB · 64GB
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3GB · 64GB
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6000 mAh
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5020 mAh
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| Check Accessories | Check Accessories |
Availability
| Officially announced | |
|---|---|
| Feb 25, 2020 | Apr 30, 2020 |
| Prices (MSRP) | |
| €240 | |
Design
| Dimensions | |
|---|---|
| 6.27 x 2.96 x 0.35 inches 159.2 x 75.1 x 8.9 mm |
6.39 x 3.04 x 0.35 inches 162.3 x 77.2 x 8.9 mm |
| Weight | |
| 6.74 oz / 191.0 g | 7.02 oz / 199.0 g |
| Materials | |
| Back: Plastic Frame: Plastic | Frame: Plastic |
| Resistance | |
| Splash | |
| Biometrics | |
| 2D Face unlock, Fingerprint (touch) | Fingerprint (touch) |
| Keys | |
| Right: Volume control, Lock/Unlock key | Right: Volume control, Lock/Unlock key |
| Colors | |
| Blue, Black, Red | Forest green, Polar white, Midnight gray |
Display
| Size | |
|---|---|
| 6.4-inch, 83.97% screen-to-body | 6.5-inch, 83.52% screen-to-body |
| Type | |
| Super AMOLED, 420 nits | IPS LCD |
| Resolution | |
| 2340x1080px, 19.5:9 ratio, 403 PPI | 2340x1080px, 19.5:9 ratio, 395 PPI |
| Protection | |
| Corning Gorilla Glass 3 | Corning Gorilla Glass 5 |
PhoneArena Display Test
| Bright Max (20% APL) | |
|---|---|
| Untested | Untested |
| Bright Min | |
| Untested | 0.8 (Excellent) |
Learn more on our
PhoneArena Display Test Results page.
Hardware
| System chip | |
|---|---|
| Exynos 9611 (10 nm) | MediaTek Helio G85 (12 nm) |
| Processor | |
| Octa-core 4x2.3GHz Cortex-A73 4x1.7GHz Cortex-A53 |
Octa-core 2000 MHz Arm Cortex-A75 and ArmCortex-A55 |
| GPU | |
| Mali-G72 MP3 | Mali G52 MC2 |
| Memory | |
| 6GB (LPDDR4)/64GB (UFS 2.1) 6GB/128GB |
3GB (LPDDR4)/64GB (eMMC 5.1) 4GB/128GB |
| Storage expansion | |
| microSDXC up to 512 GB | microSDXC up to 128 GB |
| OS | |
| Android (11, 10) | Android (10) |
Battery
| Type | |
|---|---|
| 6000 mAh, Li - Polymer | 5020 mAh, Li - Polymer |
| Charging | |
| Fast charging | Fast charging Reverse wired charging |
| Charge speed | |
| Wired: 15.0W | Wired: 18.0W |
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
Untested
Browsing
Untested
Video
10h 43min
Gaming
7h 34min
Camera
| Rear | |
|---|---|
| Quad camera | Quad camera |
| Main camera | |
| 64 MP (PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.7" Pixel size: 0.8 μm | 48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm |
| Second camera | |
| 8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/4" Pixel size: 1.12 μm |
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.2 μm |
| Third camera | |
| 5 MP (Macro) Aperture size: F2.2 Focal Length: 25 mm Sensor size: 1/5" Pixel size: 1.12 μm |
2 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.75 μm |
| Fourth camera | |
| 5 MP (Depth information) Aperture size: F2.2 |
2 MP Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.7 μm |
| Flash | |
| LED | LED |
| Video recording | |
| 4K UHD (30 fps), 1080p, 720p (240 fps) Hyperlapse, EIS |
1080p (30 fps), 720p (120 fps) |
| Front | |
| 32 MP (HDR, Slow-motion videos) Video capture: 1080p (30 fps) | 13 MP (HDR) Video capture: 1080p (30 fps) |
Connectivity & Features
| Bluetooth | |
|---|---|
| 5.0 | 5.0 |
| WLAN | |
| dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac | dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac |
| USB | |
| Type-C, USB 2.0 | Type-C, USB 2.0 |
| Sensors | |
| Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor | Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor |
| Location | |
| GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning | GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning |
| Other | |
| NFC | NFC, Infrared |
Multimedia
| Headphones | |
|---|---|
| 3.5mm jack | 3.5mm jack |
| Speakers | |
| Earpiece, Loudspeaker | Earpiece, Loudspeaker |
| Features | |
| Dolby Atmos | |
| Screen mirroring | |
| Wireless screen share | Wireless screen share |
| Radio | |
| FM | |
| Additional microphone(s) | |
| Noise cancellation | Noise cancellation |
Cellular
| LTE Bands | |
|---|---|
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66 | 1, 2, 3, 4, 5, 7, 8, 20, 28 |
| TDD Bands | |
| 38, 40, 41 | 38, 40, 41 |
| 3G Bands | |
| 1, 2, 4, 5, 8 | 1, 2, 4, 5, 8 |
| Data Speed | |
| LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s | LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s |
| Dual SIM | |
| Yes | Yes |
| SIM type | |
| Nano SIM | Nano SIM |
| VoLTE | |
| Yes | Yes |
Regulatory Approval
| FCC approval | |
|---|---|
| Date approved: Feb 07, 2020 FCC ID value: A3LSMM315F | |
| Measured SAR | |
| Head: 0.42 W/kg Body: 0.41 W/kg Simultaneous Transmission: 1.54 W/kg Wireless Router: 0.74 W/kg |
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