We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Data about your interaction with this site and the ads shown to you may be shared with companies involved in the delivery and/or personalisation of ads on this site and elsewhere online.

Asus ROG Phone 3 vs Samsung Galaxy S21 5G

    3.07 in
    6.73 in
    Asus ROG Phone 3 Mobile
    Asus ROG Phone 3
      2.8 in
      5.97 in
      Samsung Galaxy S21 5G Mobile Phone
      Samsung Galaxy S21 5G
      Available colors
      Editiorial reviews
      10
      4.3 out of 5
      7 user ratings
      5 stars
      		57 %
      4 stars
      		42 %
      3 stars
      		0 %
      2 stars
      		0 %
      1 stars
      		0 %
      Read editorial reviews
      14
      4.1 out of 5
      10 user ratings
      5 stars
      		20 %
      4 stars
      		80 %
      3 stars
      		0 %
      2 stars
      		0 %
      1 stars
      		0 %
      Read editorial reviews
      User rating
      33
      3.9 out of 5
      33 user ratings
      5 stars
      		27 %
      4 stars
      		39 %
      3 stars
      		33 %
      2 stars
      		0 %
      1 stars
      		0 %
      38
      4.0 out of 5
      38 user ratings
      5 stars
      		31 %
      4 stars
      		36 %
      3 stars
      		31 %
      2 stars
      		0 %
      1 stars
      		0 %

      Full Comparison

      Units:

      Hardware

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Operating systemAndroid 10Android 11
      CPU clock speed
      • 2.84
      • 3.1
      		2.9 GHz
      CPU cores8-core8-core
      CPU model
      • Qualcomm Snapdragon 865
      • Qualcomm Snapdragon 865+
      		Samsung Exynos 2100
      RAM memory
      • 12 GB
      • 8 GB
      		LPDDR5 SDRAM - 8 GB

      Display

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Screen size6.59 in6.2 in
      Panel typeOLEDOLED
      Resolution2340 x 1080 px2400 x 1080 px
      TechnologyAMOLEDInfinity-O Dynamic AMOLED 2X
      HDRyesyes

      Rear camera

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Primary sensor resolution64.0 Mpx12.0 Mpx
      Resolution (second camera)13.0 Mpx12.0 Mpx
      Focus adjustmentAutomaticAutomatic

      Front camera

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Primary resolution24.0 Mpx10.0 Mpx
      Focus adjustmentAutomaticAutomatic

      Storage

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Internal storage
      • 256 GB
      • 512 GB
      • 128 GB
      • 256 GB

      Design

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Colour of productBlack glarePhantom grey

      Dimensions

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Height6.73 in5.97 in
      Width3.07 in2.8 in
      Depth0.39 in0.31 in
      Weight8.47 oz5.96 oz

      Connectivity

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Sim card sizeNano SIM
      • Nano SIM
      • Electronic SIM card

      Cellular

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Data transmission
      • GPRS
      • EDGE
      • HSDPA
      • HSUPA
      • HSPA+
      • LTE
      • FDD-LTE
      • TDD-LTE
      • 5G NR
      • FDD-LTE
      • TDD-LTE
      • 5G NR FR1
      Navigation system
      • GPS
      • GLONASS
      • BeiDou
      • Galileo
      • QZSS
      • GPS
      • GLONASS
      • BeiDou
      • Galileo

      Battery

      Asus ROG Phone 3Asus ROG Phone 3
      Samsung Galaxy S21 5GSamsung Galaxy S21 5G
      Battery capacity6000.0 mAh4000.0 mAh

      Pros & Cons

      Pros
          Cons

              Often compared with Asus ROG Phone 3

              Asus ROG Phone 3 Mobile
              Asus ROG Phone 5
              AsusROG Phone 3
              AsusROG Phone 5
              Asus ROG Phone 3 Mobile
              Asus ROG Phone
              AsusROG Phone 3
              AsusROG Phone
              Asus ROG Phone 3 Mobile
              OnePlus 9
              AsusROG Phone 3
              OnePlus9
              Asus ROG Phone 3 Mobile
              Apple iPhone 11 Pro Max
              AsusROG Phone 3
              AppleiPhone 11 Pro Max
              Asus ROG Phone 3 Mobile
              Apple iPhone 12 Pro Max
              AsusROG Phone 3
              AppleiPhone 12 Pro Max
              Asus ROG Phone 3 Mobile
              OnePlus 9 Pro
              AsusROG Phone 3
              OnePlus9 Pro

              Often compared with Samsung Galaxy S21 5G

              Samsung Galaxy S21 5G Mobile Phone
              Apple iPhone 12 Pro Max
              SamsungGalaxy S21 5G
              AppleiPhone 12 Pro Max
              Samsung Galaxy S21 5G Mobile Phone
              Apple iPhone 12
              SamsungGalaxy S21 5G
              AppleiPhone 12
              Samsung Galaxy S21 5G Mobile Phone
              Google Pixel 5
              SamsungGalaxy S21 5G
              GooglePixel 5
              Samsung Galaxy S21 5G Mobile Phone
              Samsung Galaxy S9+
              SamsungGalaxy S21 5G
              SamsungGalaxy S9+
              Samsung Galaxy S21 5G Mobile Phone
              Samsung Galaxy S10
              SamsungGalaxy S21 5G
              SamsungGalaxy S10
              Samsung Galaxy S21 5G Mobile Phone
              Huawei P40 Pro
              SamsungGalaxy S21 5G
              HuaweiP40 Pro
              Samsung Galaxy S21 5G Mobile Phone
              Samsung Galaxy S20
              SamsungGalaxy S21 5G
              SamsungGalaxy S20
              Samsung Galaxy S21 5G Mobile Phone
              Samsung Galaxy S8
              SamsungGalaxy S21 5G
              SamsungGalaxy S8