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Samsung Galaxy A51 5G US Unlocked (SM-A516U1) vs Samsung Galaxy A21s (SM-A217F)

GENERAL INFORMATION

PHYSICAL SPECS

  • Dimensions
    73.6 x 158.9 x 8.7 mm 75.3 x 163.6 x 8.9 mm
  • Weight
    187 g 192g
  • SIM Card
    Single SIM Single / Dual SIM
  • SIM Card Size
    Nano-SIM (4FF) Nano-SIM (4FF)

Essential Accessories (external affiliate links)

    OPERATING SYSTEM

    • Platform
      Android Android
    • Installed OS Version
      Android 10 Android 10.0

    NETWORK

    • Supported Network
      2G, 3G, 4G / LTE, 5G 2G, 3G, 4G / LTE

    DISPLAY

    • Technology (Main Display)
      Super AMOLED TFT Touch Screen
    • Size (Main Display)
      6.5 inches 6.5 Inches (166.3mm)
    • Color Depth (Main Display)
      16M Colors 16M Colors
    • Resolution (Main Display)
      FHD+ 1080×2400 Pixels HD+ 720 x 1600 Pixels
    • Pixel Density
      405 PPI 270 PPI
    • S Pen Support
      No
    • More Display Features
      Infinity-O Display, Corning Gorilla Glass 3 Protection Infinity-O Display

    PROCESSOR

    • CPU Type
      Exynos 980 Exynos 850
    • CPU Speed
      2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55 2.0 GHz
    • Cores
      8 Cores (Octa-Core) 8 Cores (Octa-Core)
    • GPU
      Mali-G76 MP5 Mali-G52

    MEMORY

    • RAM Size
      6GB 3GB / 4GB / 6GB
    • ROM Size
      128GB 32GB / 64GB
    • External Memory Support
      MicroSD Slot (up to 1TB) MicroSD (Up to 512GB)

    SENSORS

    • Built In Sensors
      Fingerprint (Under Display, Optical), Accelerometer, Gyro, Proximity, Compass Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Proximity Sensor, Virtual Light Sensing

    AUDIO and VIDEO

    • Audio Playing Format
      MP3, M4A, 3GA, AAC, OGG, OGA, WAV, WMA, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA MP3, M4A, 3GA, AAC, OGG, OGA, WAV, WMA, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA
    • Video Playing Format
      MP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM MP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM
    • Video Recording Resolution
      FHD (1920 x 1080 Pixels) @30fps
    • Video Playing Resolution
      FHD (1920 x 1080 Pixels) @60fps

    CAMERA

    • Rear Camera
      Quad Quad
    • Front Camera
      Single Single
    • Rear Camera - Resolution
      48MP + 12MP Ultra-Wide + 5MP Depth Sensor + 5MP Macro 48.0 MP Wide + 8.0 MP Ultra-Wide + 2.0 MP Depth + 2.0 MP Macro
    • Front Camera - Resolution
      32.0MP 13.0 MP
    • Rear Camera - Flash
      Yes Yes
    • Front Camera - Flash
      No No
    • Rear Camera - Auto Focus
      Yes Yes
    • Front Camera - Auto Focus
      No
    • Rear Camera - F Number
      F2.0, F2.2, F2.2, F2.4 F2.0 , F2.2 , F2.4 , F2.4
    • Front Camera - F Number
      F2.2 F2.2
    • Optical Image Stabilizer (OIS)
      Yes No
    • Camera Features
      - Panorama.
      - HDR.
      - HDR.
      - Panorama.
      - Digital Zoom up to 8x.

    CONNECTIVITY

    • ANT+
      Yes No
    • USB Version
      USB v2.0 v2.0
    • USB Interface
      USB Type-C Type-C 1.0
    • Earjack
      3.5mm Stereo 3.5mm Stereo
    • Bluetooth Version
      Bluetooth v5.0 Bluetooth v5.0 (LE up to 2 Mbps)
    • Wi-Fi
      Wi-Fi a/b/g/n/ac 802.11 a/b/g/n/ac 2.4+5GHz
    • Wi-Fi Direct
      Yes Yes
    • NFC
      Yes No
    • Location Technology
      GPS, Glonass, Beidou, Galileo GPS, Glonass, Beidou, Galileo
    • Radio
      FM Radio
    • Mobile High-Definition Link (MHL)
      No No
    • PC Sync
      Samsung Smart Switch Samsung Smart Switch

    BATTERY

    • Standard Battery Capacity (mAh)
      4,500 mAh 5000mAh
    • Removable
      No No
    • Fast Charging Support
      Yes Yes
    • Talk Time
      Up to 23H Up to 54H (4G LTE)
    • Audio Playback Time (Hours)
      Up to 109H
    • Internet Usage Time(LTE) (Hours)
      Up to 23H
    • Internet Usage Time(Wi-Fi) (Hours)
      Up to 23H

    FEATURES

    • More Features
      - 5G Networks Support.
      - Fast Wired Charging (15 watts).
      - Infinity-O Display.
      - Dolby Atmos (wired audio).
      - Facial Recognition.
      - In-Display Optical Fingerprint Sensor.
      - Samsung Pay.
      - Infinity-O Display.
      - 15W Fast Charging Support.
      - Dolby Atmos Audio.

    Disclaimer Notice:

    • Disclaimer Notice:
      These specifications and features are collected from Samsung official websites and world trusted sources. But even thus We can not guarantee that the information on this page is 100% correct. So If any particular specification is vital to you, we always recommend checking with the phone seller before buying the wanted device. These specifications and features are collected from Samsung official websites and world trusted sources. But even thus We can not guarantee that the information on this page is 100% correct. So If any particular specification is vital to you, we always recommend checking with the phone seller before buying the wanted device.