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Samsung Galaxy S21 Ultra 5G US Unlocked (SM-G998U1) vs Samsung Galaxy M55 5G (SM-M556B)

GENERAL INFORMATION

PHYSICAL SPECS

  • Dimensions
    75.6 x 165.1 x 8.9mm 163.9 x 76.5 x 7.8mm
  • Weight
    229g 180g
  • SIM Card
    Single / Dual SIM Dual / Single SIM Card
  • SIM Card Size
    Nano-SIM (4FF) Nano-SIM (4FF)
  • Ingress Protection Rating (IP Rate)
    IP68 Dust / Water resistant (up to 1.5m for 30 mins)

OPERATING SYSTEM

  • Platform
    Android Android
  • Installed OS Version
    Android 11, One UI 3.1 Android 14 (One UI 6.1)

NETWORK

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

DISPLAY

  • Technology (Main Display)
    Dynamic AMOLED 2X Super AMOLED Plus
  • Size (Main Display)
    6.8 inches 6.7 inches
  • Color Depth (Main Display)
    16M Colors 16M Colors
  • Resolution (Main Display)
    Edge QHD+ 3200 x 1440 Pixels FHD+ 1080 x 2400 pixels
  • Pixel Density
    515ppi 385 PPI
  • S Pen Support
    Yes No
  • More Display Features
    Infinity-O Display, HDR10+ certified, Adaptive 120Hz refresh rate (10~120Hz), Eye Comfort Shield, Corning Gorilla Glass Victus, Always-on display. 120Hz Refresh Rate, Infinity-O Display

PROCESSOR

  • CPU Type
    Qualcomm SM8350 Snapdragon 888 Qualcomm SM7450-AB Snapdragon 7 Gen 1
  • CPU Speed
    1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510
  • Cores
    8 Cores (Octa-Core) 8 Cores (Octa-Core)
  • GPU
    Adreno 660 Adreno 644

MEMORY

  • RAM Size
    12GB / 16GB 8GB
  • ROM Size
    128GB / 256GB / 512GB 128GB / 256GB
  • External Memory Support
    No microSD Up to 1TB

SENSORS

  • Built In Sensors
    Ultrasonic Fingerprint sensor, Accelerometer, Barometer, Gyro sensor, Geomagnetic sensor, Hall sensor Proximity sensor, Ambient Light Sensor Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Virtual Proximity 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, APE, DSF, DFF 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
    UHD 8K (7680 x 4320 Pixels) @24fps UHD 4K (3840 x 2160 Pixels) @30fps
  • Video Playing Resolution
    UHD 8K (7680 x 4320 Pixels) @60fps UHD 4K (3840 x 2160 Pixels) @30fps

CAMERA

  • Rear Camera
    Quad Triple
  • Front Camera
    Single Single
  • Rear Camera - Resolution
    108MP Wide, 10MP Periscope Telephoto, 10MP Telephoto, 12MP Ultra Wide 50.0MP Wide + 8.0MP Ultra-Wide + 2.0MP Macro Sensor
  • Front Camera - Resolution
    40MP 50.0MP
  • Rear Camera - Flash
    Yes Yes
  • Front Camera - Flash
    No No
  • Rear Camera - Auto Focus
    Yes Yes
  • Front Camera - Auto Focus
    Yes No
  • Rear Camera - F Number
    F1.8, F4.9, F2.4, F2.2 F1.8, F2.2, F2.4
  • Front Camera - F Number
    F2.2 F2.4
  • Optical Image Stabilizer (OIS)
    Yes (Front and Rear Camera) Yes (Rear Camera)
  • Camera Features
    - 100X Space Zoom.
    - Slow Motion: 960fps @HD, 240fps @FHD.
    - Laser AF Sensor.
    - Panorama.
    - Auto-HDR
    - HDR.
    - Panorama.
    - Digital Zoom up to 10x.
    - Slow Motion: 240fps @HD.

CONNECTIVITY

  • ANT+
    Yes
  • USB Version
    V3.2 USB 2.0
  • USB Interface
    USB Type-C USB Type-C
  • Earjack
    No No
  • Bluetooth Version
    Bluetooth v5.2 Bluetooth v 5.2
  • Wi-Fi
    802.11 a/b/g/n/ac/ax 2.4G+5GHz+6GHz, HE160, MIMO, 1024-QAM 802.11a/b/g/n/ac/ax 2.4GHz+5GHz, HE80, MIMO, 1024-QAM
  • Wi-Fi Direct
    Yes Yes
  • NFC
    Yes Yes
  • Location Technology
    A-GPS, GLONASS, BDS, GALILEO GPS, Glonass, Beidou, Galileo, QZSS
  • Mobile High-Definition Link (MHL)
    No No
  • PC Sync
    Samsung Smart Switch Samsung Smart Switch

BATTERY

  • Standard Battery Capacity (mAh)
    5000mAh 5,000mAh
  • Removable
    No No
  • Fast Charging Support
    Yes Yes
  • Wireless Charging
    No
  • Talk Time
    Up to 37H (4G LTE)
  • Stand-By
    Up to 11.9 Days
  • Audio Playback Time (Hours)
    Up to 81H

FEATURES

  • More Features
    - 5G Support.
    - Samsung Pay.
    - Wireless: Smart View (screen mirroring 1080p at 30 fps).
    - Wired: supports DisplayPort over USB type-C. Supports video out when connecting via HDMI Adapter. (DisplayPort 4K UHD at 60 fps)(DisplayPort 4K UHD at 60 fps).
    - Fast charging 25W.
    - USB Power Delivery 3.0.
    - Fast Qi/PMA wireless charging 15W.
    - Reverse wireless charging 4.5W.
    - 5G Network Support.
    - Up to 4 generations of Operating System Updates and up to 5 years of security maintenance.
    - 120Hz Refresh Rate
    - Eye Comfort Shield.
    - Samsung Knox Vault.
    - 45W Super Fast Charging 2.0 Support.
    - Samsung Pay.

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.