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OnePlus 9 vs Xiaomi Mi 4

    2.92 in
    6.3 in
    OnePlus 9 Mobile Phone
    OnePlus 9
      2.7 in
      5.48 in
      Xiaomi Mi 4 Mobile Phone
      Xiaomi Mi 4
      Editiorial reviews
      15
      4.3 out of 5
      11 user ratings
      5 stars
      		36 %
      4 stars
      		63 %
      3 stars
      		0 %
      2 stars
      		0 %
      1 stars
      		0 %
      Read editorial reviews
      8
      3.8 out of 5
      5 user ratings
      5 stars
      		20 %
      4 stars
      		60 %
      3 stars
      		20 %
      2 stars
      		0 %
      1 stars
      		0 %
      Read editorial reviews
      User rating
      41
      4.3 out of 5
      41 user ratings
      5 stars
      		46 %
      4 stars
      		34 %
      3 stars
      		19 %
      2 stars
      		0 %
      1 stars
      		0 %
      40
      4.1 out of 5
      40 user ratings
      5 stars
      		35 %
      4 stars
      		45 %
      3 stars
      		15 %
      2 stars
      		5 %
      1 stars
      		0 %

      Full Comparison

      Units:

      Hardware

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Operating systemOxygenOSAndroid 4.4
      CPU clock speed2.84 GHz2.5 GHz
      CPU cores8-coreQuad-core
      CPU modelQualcomm Snapdragon 888Qualcomm Snapdragon 801 MSM8974AC v3
      RAM memory
      • 12 GB
      • 8 GB
      		3 GB

      Display

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Screen size6.55 in5.0 in
      Panel typeOLEDLCD
      Resolution2400 x 1080 px1920 x 1080 px
      TechnologyFluid AmoledIPS LCD
      Pixel density402.0 ppi441.0 ppi
      HDRyesno

      Rear camera

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Primary sensor resolution48.0 Mpx13.0 Mpx

      Front camera

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Primary resolution16.0 Mpx8.0 Mpx

      Storage

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Internal storage
      • 128 GB
      • 256 GB
      • 16 GB
      • 64 GB

      Dimensions

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Height6.3 in5.48 in
      Width2.92 in2.7 in
      Depth0.34 in0.35 in
      Weight6.77 oz5.26 oz

      Sensors

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Accelerometeryesyes
      Proximityyesyes
      Digital compassyesyes
      Ambient light sensoryesyes

      Connectivity

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Sim card size
      • Nano SIM
      • Nano-SIM
      		Micro-SIM

      Cellular

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Data transmission
      • 5G NR FR1
      • FDD-LTE
      • HSPA
      • LTE Advanced
      • TDD-LTE
      • VoLTE
      • VoWiFi
      		HSPA+
      Navigation system
      • A-GPS
      • BeiDou
      • GLONASS
      • GPS
      • Galileo
      		GLONASS
      UMTS frequences
      • 2100 MHz
      • 1900 MHz
      • 1700 MHz
      • 850 MHz
      • 900 MHz
      • 1700 MHz
      • 800 MHz
      • 850 MHz
      • 900 MHz
      • 1900 MHz
      • 2100 MHz

      Battery

      OnePlus 9OnePlus 9
      Xiaomi Mi 4Xiaomi Mi 4
      Battery typeLithium polymerLithium ion
      Battery capacity4500.0 mAh3080.0 mAh

      Pros & Cons

      Pros
          Cons

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