Samsung Galaxy M21s vs Samsung Galaxy A91

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          General Info

          Manufacturer
          Samsung Samsung
          Announced
          November 2020 Not announced yet
          Status
          Available - November 2020 Rumored
          Colors
          Blue, Black White, Black
          Form Factor
          Candybar Candybar
          Dimension
          159.2 x 75.1 x 8.9 mm
          (6.27 x 2.96 x 0.35 in)
          -
          Weight
          191 g (6.74 oz) -
          SIM Type
          Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)
          2G Network
          GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
          3G Network
          HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
          4G Network
          LTE LTE (unspecified)
          Messaging
          Build Features
          - Fingerprint Sensor
          - Fingerprint Sensor(In-display)

          Hardware and OS

          OS
          Android 10 Android 10
          User Interface
          One UI 2.5 One UI
          Processor
          Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) [Similar] Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485), Qualcomm SDM855 Snapdragon 855 (7 nm) [Similar]
          GPU
          Mali-G72 MP3 [Similar] Adreno 640 [Similar]
          RAM
          4 GB [Browse Similar] 8 GB [Browse Similar]
          Internal Memory
          128 GB 128 GB
          External Memory
          microSDXC microSD, up to 512 GB

          Display

          Type
          Super AMOLED Screen, 420 nits (typ), Corning Gorilla Glass 3 Super AMOLED Capacitive Touchscreen
          Colors
          16M Colour 16M colors
          Size
          6.4 inches [Similar] 6.7 inches [Similar]
          Resolution
          1080 x 2340 pixels (403 ppi) 1080 x 2400 pixels (393 ppi)
          Screen-to-Body Ratio
          83.97% -
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          64 MP + 8 MP + 5 MP [Similar] 48 MP + 12 MP + 5 MP [Similar]
          Flash
          LED Flash LED Flash
          Features
          64 MP, (wide), PDAF
          8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
          5 MP, f/2.2, (depth)
          Panorama, HDR
          48 MP, f/2.0, 26mm (wide), 1/2", 0.8µm, PDAF, OIS
          12 MP, f/2.2, 12mm (ultrawide), 1.12µm
          5 MP, f/2.2, depth sensor
          Panorama, HDR
          Video
          4K@30fps, 1080p@30fps, gyro-EIS 2160p@30fps, 1080p@30/60fps (gyro-EIS), 720p@960fps
          Front Camera
          32 MP, f/2.4, (wide), 1/2.8", 0.8µm
          HDR
          1080p@30fps [Similar]
          32 MP, f/2.2, 25mm (wide), 0.8µm, HDR, 1080p@30fps [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack yes 3.5 mm jack no
          Radio
          FM radio, RDS, recording -
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker yes

          Connectivity and Data Rate

          GPRS
          Yes Yes
          Edge
          Yes Yes
          3G
          HSPA 42.2/5.76 Mbps, LTE-A HSPA 42.2/5.76 Mbps
          Bluetooth
          5.0, A2DP, LE 5.0, A2DP, LE
          Wi-Fi
          Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
          USB
          USB Type-C 2.0 2.0, Type-C 1.0 reversible connector
          GPS
          Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
          Browser
          Yes Yes

          User Memory

          Internal
          128 GB, 4 GB RAM or 64 GB, 4 GB RAM 128 GB, 8 GB RAM
          Expandable Storage
          microSDXC microSD, up to 512 GB
          USB OTG
          Not Supported Supported

          Sensors

          Fingerprint
          fingerprint supported fingerprint supported
          Proximity Sensor
          proximity sensor present proximity sensor present
          Accelerometer Sensor
          accelerometer sensor present accelerometer sensor present
          Magnetic-field Sensor (Compass)
          magnetic field sensor present magnetic field sensor present
          Gyroscope Sensor
          gyroscope sensor present gyroscope sensor present
          NFC
          NFC not supported NFC not supported

          Battery

          Type
          Non-removable Li-Po Battery
          Fast battery charging 15W
          Non-removable Li-Po Battery
          Fast battery charging 45W
          Capacity
          6000 mAh 4500 mAh
          Stand by
          - -
          Talk Time
          - -

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