Chip vs Chip

ESP32-C3 vs CYW20820

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Side-by-side comparison of ESP32-C3 and CYW20820 BLE SoCs.

    
    

      
    

  


  
  
  

    
      

        A
        
ESP32-C3

      

      

    
    
      

        B
        
CYW20820

      

      

    
  

  

  
  

  






  
  

    
Overview


The ESP32-C3 and CYW20820 occupy different segments of the wireless SoC market. Espressif's ESP32-C3 is a cost-optimized RISC-V chip with Wi-Fi 4 and Bluetooth Low Energy 5.0, built for broad IoT applications with open-source toolchain support. Infineon's CYW20820 is an automotive-qualified dual-mode SoC supporting both BLE 5.0 and Bluetooth Classic (BR/EDR), designed for in-vehicle infotainment, professional audio accessories, and industrial applications where AEC-Q100 qualification and long-term reliability over extended temperature ranges are mandatory.




Key Differences


    

  • Automotive qualification: CYW20820 is AEC-Q100 Grade 1 qualified (-40°C to +105°C); ESP32-C3 is -40°C to +85°C and not AEC-Q100 qualified.
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  • Bluetooth Classic: CYW20820 supports both BLE 5.0 and Classic BR/EDR (A2DP, HFP, HID over Classic); ESP32-C3 does not support Classic Bluetooth.
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  • Wi-Fi: ESP32-C3 includes Wi-Fi 4; CYW20820 has no Wi-Fi radio.
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  • SDK: CYW20820 uses Infineon's WICED Studio and ModusToolbox professional toolchain; ESP32-C3 uses ESP-IDF or Arduino.
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  • Supply commitment: CYW20820 carries automotive-grade longevity commitments; ESP32-C3 is a commercial-grade part.
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  • Cost: CYW20820 is ~$4–8 in volume; ESP32-C3 is ~$1.50.
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Use Cases


Choose ESP32-C3 when:
- Wi-Fi+BLE for consumer or hobbyist IoT at low cost.
- Bluetooth Classic is not required.
- Automotive qualification is not needed.


Choose CYW20820 when:
- Automotive-grade qualification (AEC-Q100) is mandatory for in-vehicle deployment.
- Classic Bluetooth (A2DP, HFP, HID) + BLE 5.0 dual-mode operation is required.
- Industrial temperature range and long-term supply commitment are needed.




Verdict


The ESP32-C3 and CYW20820 rarely compete. The C3 excels in Wi-Fi+BLE consumer IoT; the CYW20820 excels in automotive and industrial dual-mode Bluetooth applications. AEC-Q100 qualification and Classic Bluetooth support are the decisive differentiators favoring the CYW20820 when either is required.

  

  

  
  

  
  

    




  
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Our comparisons use verified datasheet specifications to create side-by-side tables. Each comparison includes a verdict explaining when to choose each option based on your project requirements.