
Samsung Galaxy M51 vs Samsung Galaxy M31 vs Samsung Galaxy M40



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Last Updated: Sat, 19 Sep'20
Basic Information
General
- Bluetooth5.0, A2DP, LE5.0, A2DP, LE5.0, A2DP, LE
Design
- Height6.40 inches6.29 inches6.11 inches
- Width3.05 inches2.96 inches2.91 inches
- Thickness0.33 inches0.35 inches0.31 inches
- Weight213 g191 g168 g
- ColorCelestial Black, Electric BlueOcean Blue, Space BlackSweater Blue, Midnight Blue
- BuildGlass front (Gorilla Glass 3), plastic back, plastic frameGlass front (Gorilla Glass 3), plastic back, plastic frameFront glass, plastic body
Display
- Screen Size6.7 inches6.4 inches6.3 inches
- Display TypeSuper AMOLED capacitive touchscreenSuper AMOLED capacitive touchscreenPLS TFT capacitive touchscreen
- Display Resolution1080 x 2340 pixels1080 x 2340 pixels1080 x 2340 pixels
- Pixel Density385 ppi411 ppi409 ppi
- Aspect Ratio19.5:919.5:919.5:9
- ProtectionCorning Gorilla Glass 3Corning Gorilla Glass 3Corning Gorilla Glass 3
- Screen to Body Ratio87.40%84.1%84.9%
Performance
- OSAndroid 10, One UI 2.1Android 10, One UI 2.5Android 9.0 (Pie) One UI
- GPUAdreno 618Mali-G72 MP3Adreno 612
- Chipset GPQualcomm SDM730 Snapdragon 730G (8 nm)Exynos 9611 (10nm)Qualcomm SDM675 Snapdragon 675 (11 nm)
- CPUOcta-core (2x2.2 GHz Kryo 470 Gold, 6x1.8 GHz Kryo 470 Silver)Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)Octa-core (2x2.0 GHz Kryo 460 Gold 6x1.7 GHz Kryo 460 Silver)
Memory & Storage
- RAM/Internal Storage128GB 6GB RAM, 128GB 8GB RAM64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM128 GB, 6 GB RAM or 64 GB, 4 GB RAM
- Expandable MemorymicroSDXC, up to 512GBmicroSDXC (dedicated slot)microSD, up to 1 TB (uses shared SIM 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)
- AutofocusPDAFPDAFPDAF
- Back Camera Video4K30fps, 1080p30fps2160p30fps, 1080p30fps, gyro-EIS2160p30fps, 1080p30fps
- Back Camera FeaturesLED flash, panorama, HDRLED flash, panorama, HDRLED flash, panorama, HDR
- Triple Camera64 MP, f/1.8, 26mm (wide), 1/1.72, 0.8 micron|8 MP, f/2.2, 12mm (ultrawide), 1/4.0, 1.12 micron|5 MP, f/2.2, 25mm (macro), 1/5.0, 1.12 micron|5 MP, f/2.2, (depth)32 MP, f/1.7, 0.8 micron|8 MP, f/2.2, 12mm (ultrawide), 1.12 micron|5 MP, f/2.2, depth sensor
Front Camera
- Single Camera32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron16 MP, f/2.0
- Front Camera Video1080p30fps1080p30fps1080p30fps
- Front Camera FeaturesHDRHDRHDR
Sound
- HeadPhone JackYesYesYes
- LoudspeakerYesYesYes
- Audio FeaturesDolby AtmosDolby AtmosActive noise cancellation with dedicated mic|Dolby Atmos sound
Battery
- Battery Capacity7000 mAh battery6000 mAh battery3500 mAh
- User Replaceablenon-removableNon-removableNon-removable
- Talk TimeUpto 64 Hours
- Music TimeUpto 182 Hours
- ChargingFast charging 25W|Reverse Charging|100% in 115 minsFast battery charging 15WFast battery 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 A-GPS, GLONASS, BDSYes, with A-GPS, GLONASS, GALILEO, BDS
- RadioFM radioFM radio, RDS, recordingFM radio
- USB2.0, Type-C 1.0 reversible connector2.0, Type-C 1.0 reversible connector2.0, Type-C 1.0 reversible connector
- NFCYesYes
- SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
- Network SupportGSM / HSPA / LTEGSM / HSPA / LTEGSM / HSPA / LTE
Miscellaneous Features
- SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
- Announced On2020, August 312020, February 252019, June
- StatusAvailable. Released 2020, September 17Available. Released 2020, March 04Available. Released 2019, June