
Samsung Galaxy M31s vs OnePlus Nord (OnePlus Z) vs Samsung Galaxy M21



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Last Updated: Mon, 26 Oct'20
General
- Bluetooth5.0, A2DP, LE5.1, A2DP, LE, aptX HD5.0, A2DP, LE
Design
- Height6.27 inches6.23 inches6.26 inches
- Width2.92 inches2.88 inches2.96 inches
- Thickness0.36 inches0.32 inches0.35 inches
- Weight203 g184 g188 g
- ColorMirage Black, Mirage BlueMarble Blue, Gray OnyxMidnight Blue, Black
- BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frameGlass front (Gorilla Glass 3), plastic back, plastic frame
Display
- Screen Size6.5 inches6.44 inches6.4 inches
- Display TypeSuper AMOLED capacitive touchscreenFluid AMOLED capacitive touchscreenSuper AMOLED capacitive touchscreen
- Display Resolution1080 x 2400 pixels1080 x 2400 pixels1080 x 2340 pixels
- Pixel Density405 ppi408 ppi403 ppi
- Aspect Ratio20:0920:919.5:9
- ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 5Corning Gorilla Glass 3
- Screen to Body Ratio91 %86.7%84.20%
Performance
- OSAndroid 10, One UI 2.5Android 10, OxygenOS 10.5.7Android 10.0 One UI 2
- GPUMali-G72 MP3Adreno 620Mali-G72 MP3
- Chipset GPSamsung Exynos 9 Octa 9611Qualcomm SDM765 Snapdragon 765G (7 nm)Exynos 9611 (10nm)
- CPUOcta core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)Octa-core (1x2.4 GHz Kryo 475 Prime, 1x2.2 GHz Kryo 475 Gold, 6x1.8 GHz Kryo 475 Silver)Octa-core (4x2.3 GHz Cortex-A73 and 4x1.7 GHz Cortex-A53)
Memory & Storage
- RAM/Internal Storage128GB 6GB RAM, 128GB 8GB RAM64GB 6GB RAM, 128GB 8GB RAM, 256GB 12GB RAM64GB 4GB RAM, 128GB 6GB RAM
- Expandable MemorymicroSDXC (dedicated slot), Up to 512 GBNomicroSDXC (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)48 MP, f/1.75, 26mm (wide), 1/1.72", 0.8micron, PDAF|8 MP, f/2.2, 14mm, 119degree (ultrawide)|5 MP, f/2.4, (depth)|2 MP, f/2.4, (macro)
- AutofocusPDAFMulti Autofocus (PDAF+CAF)PDAF
- OISNoOIS
- Back Camera Video4K30fps, 1080p30fps, gyro-EIS4K30fps, 1080p30/60/240fps, gyro-EIS4K30fps, 1080p30fps, gyro-EIS
- Back Camera FeaturesLED flash, panorama, HDRDual-LED flash, HDR, panoramaLED flash, panorama, HDR
Front Camera
- Single Camera32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron20 MP, f/2.0, 26mm (wide)
- Front Camera Video4K30fps, 1080p30fps4K30/60fps, 1080p30/60fps1080p30fps
- Front Camera FeaturesHDRHDRHDR
- Dual Camera32 MP, f/2.5, (wide), 1/2.8", 0.8micron|8 MP, f/2.5, 105degree (ultrawide), 1/4.0", 1.12micron
Sound
- HeadPhone JackYesYesYes
- LoudspeakerYesYesYes
- Audio FeaturesDolby AtmosSuper linear speaker | Noise cancellation supportDolby Atmos
Battery
- Battery Capacity6000 mAh battery4115 mAh battery6000 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 30W, 70% in 30 minFast charging 15W
- 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 dual-band A-GPS, GLONASS, GALILEO, BDS, SBAS, NavICYes, with A-GPS, GLONASS, BDS
- RadioFM radio, RDS, recordingUnspecifiedFM radio, RDS, recording
- USB2.0, Type-C 1.0 reversible connector, USB On-The-Go2.0, Type-C 1.0 reversible connector, USB On-The-Go2.0, Type-C 1.0 reversible connector
- NFCNoYesNo
- 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 / LTE / 5GGSM / HSPA / LTE
Miscellaneous Features
- SensorsFingerprint (side-mounted), Accelerometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity SensingFingerprint (under display, optical), Accelerometer/Electronic compass/Gyroscope/Ambient light sensor/Proximity sensor/Sensor CoreFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
- Announced On2020, July 302020, July 212020, March 18
- StatusAvailable. Released 2020, July 30Available. Released 2020, August 04Available. Released 2020, March 23