Oppo Realme C55 vs Xiaomi Redmi 9A

Compared 2 smartphones : Oppo Realme C55 Manufactured in March, 2023, with display 6.72 with chipsetMediaTek Helio G88, vs Xiaomi Redmi 9A, Manufactured in August, 2020with chipsetMediaTek Helio G25. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Oppo Realme C55
  • Larger display: 6.72in
  • Higher pixel density: 392ppi
  • Higher refresh rate: 90Hz
  • Lighter design: 189.5g vs 194g
  • Newer Bluetooth version: 5.2 vs 5
  • Includes charger
  • Fingerprint scanner
Reasons to choose Xiaomi Redmi 9A

    Versions

    Available versions and configurations
    Memory Options - 4/64 GB
    - 4/128 GB
    - 6/64 GB
    - 6/128 GB
    - 8/128 GB
    - 8/256 GB
    - 2/32 GB
    - 3/32 GB
    - 4/64 GB
    - 4/128 GB
    - 6/128 GB

    Review

    Key Specs Oppo Realme C55 and Xiaomi Redmi 9A
    Display
    Color accuracy, sharpness & brightness
    Camera
    Main & front camera tests
    Performance
    App & system performance
    Games
    3D gaming performance
    Battery
    Battery life, charging speed & type
    Connectivity
    Connectivity features
    NanoReview Score
    Overall score by NanoReview
    Adjust each parameter’s importance to find the best match for you.
    Customize your score
    Function
    Importance (Weight)
    Display:
    Camera:
    Performance:
    Gaming:
    Battery:
    Connectivity:
    Higher weight means greater impact on NanoReview score.

    Tests & specs

    Specs & test comparison

    Display

    Display quality comparison
    Type IPS LCD IPS LCD
    Size 6.72 in 6.53 in
    Resolution 1080x2400 pixels 720x1600 pixels
    Aspect ratio 20:9 20:9
    Pixel density 392 ppi 269 ppi
    Refresh rate 90 Hz 60 Hz
    Adaptive refresh rate No No
    Max brightness 680 nits 400 nits
    HDR support No No
    Touch Sampling Rate 180 Hz n/a
    Screen-to-body ratio 86.7 % 81.1 %
    Display test
    Peak brightness (auto)
    Oppo Realme C55
    655 nits
    Xiaomi Redmi 9A
    434 nits
    sRGB gamut100 %92.9 %
    Response time21 ms40 ms
    Contrast1471:11318:1

    Design & Build

    Design and ergonomics comparison
    Height 165.6 mm (6.52 in) 164.9 mm (6.49 in)
    Width 75.9 mm (2.99 in) 77 mm (3.03 in)
    Thickness 7.89 mm (0.31 in) 9 mm (0.35 in)
    Weight 189.5 g (6.68 oz) 194 g (6.84 oz)
    Water resistance No No
    Back panel Plastic Plastic
    Frame Plastic Plastic
    Colors - Blue
    - Green
    - Yellow
    - Gray
    - Blue
    - Green
    Fingerprint sensor Yes In-Button No
    Screen-to-body ratio
    Oppo Realme C55
    86.7 %
    Xiaomi Redmi 9A
    81.1 %

    Performance

    Testing Oppo Realme C55 and Xiaomi Redmi 9A In benchmarks
    Processor
    Chipset MediaTek Helio G88 MediaTek Helio G25
    Max Frequency 2000 MHz 2000 MHz
    CPU Cores 8 (2 + 6) 8 (4 + 4)
    Architecture - 6/1.8 (Cortex-A55)
    - 2/2 (Cortex-A75)
    - 4/1.5 (Cortex-A53)
    - 4/2 (Cortex-A53)
    Process TSMC TSMC
    Transistor Size 12 nm 12 nm
    Neural Processor MediaTek APU No
    Graphics Mali-G52 MP2 PowerVR GE8320
    GPU Cores 48 32
    GPU Frequency 1000 MHz 650 MHz
    FLOPS 96 GFLOPS 41.8 GFLOPS
    GeekBench v6
    Geekbench 6 (Single-Core)
    Oppo Realme C55
    425
    Xiaomi Redmi 9A
    472
    Geekbench 6 (Multi-Core)
    Oppo Realme C55
    1413
    Xiaomi Redmi 9A
    1524
    Geekbench 6 (Single-Core)425472
    Geekbench 6 (Multi-Core)14131524
    AnTuTu 10
    AnTuTu 10
    Oppo Realme C55
    274070
    Xiaomi Redmi 9A
    125125
    CPU8173450728
    GPU4192016844
    Memory7495928611
    UX7545728942
    NanoReview Score274070125125
    3DMark Wild Life
    3DMark Wild Life
    Oppo Realme C55
    742
    Xiaomi Redmi 9A
    n/a
    Max Surface Temp.47.8 °Cn/a
    Stability98 %n/a
    Graphics Test4 fpsn/a
    Graphics Score742n/a
    PCMark 3.0
    PCMark 3.0
    Oppo Realme C55
    8633
    Xiaomi Redmi 9A
    n/a
    Writing score9636n/a
    Web score7137n/a
    Video editing6212n/a
    Data manipulation6028n/a
    NanoReview Score8633n/a

    Memory

    RAM
    RAM Size - 6 GB
    - 8 GB
    - 2 GB
    - 4 GB
    - 6 GB
    Memory Type LPDDR4X LPDDR4X
    Memory Frequency 1800 MHz 1600 MHz
    Channels 2 2
    Storage
    Storage Capacity- 128 GB
    - 256 GB
    - 32 GB
    - 64 GB
    - 128 GB
    Storage TypeeMMC 5.1eMMC 5.1
    Memory CardMicroSDMicroSD

    Software

    OS Android 13 (Upgradeable to Android 14) Android 10 (Upgradeable to Android 11)
    OS Size 20 GB 11 GB
    UI Skin Realme UI 5.0 MIUI 12.5 Enhanced

    Battery

    Volume 5000 mAh 5000 mAh
    Max Charging Power 33 W 10 W
    Battery Type Li-Po Li-Po
    Removable No No
    Wireless Charging No No
    Reverse Charging No No
    Fast Charging Yes (27% in 30 min) No
    Full Charge Time 1:09 h 2:55 h
    Battery Life Test
    Battery Life
    Oppo Realme C55
    22:19
    Xiaomi Redmi 9A
    24:07
    Web Browsing07:44 h10:08 h
    Video Playback12:22 h13:37 h
    Games05:14 h05:37 h
    Standby Mode124 h118 h

    Main camera

    Matrix 64 MP 13 MP
    Photo resolution 9248x6944 pixels 4128x3096 pixels
    Zoom Digital Digital
    Flash LED LED
    Stabilization Digital Digital
    8K Recording No No
    4K Recording No No
    1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
    Slow Motion 120 fps (720p) No
    Lenses count Standard: 64 MP
    Depth: 2 MP
    Standard: 13 MP
    Features - Bokeh effect
    - Pro mode
    Main lens
    Matrix64 MP13 MP
    Aperturen/af/2.2
    Focal lengthn/a28 mm
    SensorOmnivision OV64Bn/a
    Sensor size1/2n/a
    Pixel size0.7 μm1 μm
    AutofocusPhase autofocusPhase autofocus
    StabilizationDigitalDigital

    Front camera

    Matrix 8 MP 5 MP
    Photo resolution 3264x2448 pixels 2560x1960 pixels
    Aperture f/2.0 f/2.2
    Sensor CMOS CMOS
    Pixel size n/a 1.12 μm
    Autofocus No No
    Stabilization Digital Digital
    Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
    TOF 3D sensor No No

    Connectivity

    Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 4 (802.11 a/b/g/n)
    Wi-Fi features - Dual Band
    - Wi-Fi Direct
    - Wi-Fi Hotspot
    - Wi-Fi Display
    - Wi-Fi Direct
    - Wi-Fi Hotspot
    - Wi-Fi Display
    Bluetooth version 5.2 5
    Bluetooth features LE LE, HID, A2DP
    USB type USB Type-C Micro USB
    USB version 2 2
    USB features - Charging
    - USB Storage Mode
    - Charging
    - USB Storage Mode
    - OTG
    GPS - GPS
    - GLONASS
    - Beidou
    - Galileo
    - GPS
    - GLONASS
    - Beidou
    - Galileo
    NFC* Varies by region No
    Infrared Port No No
    Connectivity
    SIM Count*22
    SIM TypeNanoNano
    SIM ModeDual SIM StandbyDual SIM Standby
    eSIM Support *NoNo
    Hybrid SlotNoNo
    2G BandsGSM 850/900/1800/1900GSM B2/3/5/8
    3G BandsWCDMA Bands 1/5/8WCDMA B1/2/4/5/8
    LTE Bands*LTE (B1/B3/B5/B8/B38/B40/B41)LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28)
    LTE category74
    5G SupportNoNo

    Sound

    Speakers Mono Mono
    3.5 mm Jack Yes Yes
    FM Radio No Yes
    Dolby Atmos No No
    Speaker Test
    Max Volume
    Oppo Realme C55
    80.6 dB
    Xiaomi Redmi 9A
    76.5 dB

    Other

    Class Budget Budget
    Announced March, 2023 yr June, 2020 yr
    Release Date March, 2023 yr August, 2020 yr
    Launch Price ($) 160 100
    Sensors - Proximity Sensor
    - Accelerometer
    - Ambient Light Sensor
    - Compass
    - Fingerprint sensor
    - Proximity Sensor
    - Accelerometer
    - Ambient Light Sensor
    Charger Included Yes 33 W n/a
    * Attention! Config, frequencies, NFC, and other specs may vary by region.

    Results

    After analyzing the data, we consider Oppo Realme C55 the clear winner in this comparison.

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