Chip vs Chip

ESP32-C6 vs DA14531

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Side-by-side comparison of ESP32-C6 and DA14531 BLE SoCs.

    
    

      
    

  


  
  
  

    
      

        A
        
ESP32-C6

      

      

    
    
      

        B
        
DA14531

      

      

    
  

  

  
  

  






  
  

    
Overview


The ESP32-C6 and DA14531 represent opposite ends of the BLE capability spectrum. Espressif's ESP32-C6 is Espressif's most feature-complete wireless SoC: dual-core RISC-V at 160 MHz, Wi-Fi 6, BLE 5.3, Thread, Zigbee, and Matter—a powerhouse for smart home and multiprotocol IoT. Dialog's DA14531 is the smallest BLE SoC ever made (2 mm × 2 mm WLCSP), with an ARM Cortex-M0+ at 16 MHz, BLE 5.1, and extreme sub-µA power optimization for coin-cell-powered beacons and disposable tags.




Key Differences


    

  • Form factor: DA14531 is 2 mm × 2 mm; ESP32-C6 modules are significantly larger.
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  • Power: DA14531 achieves ~1 µA average in a BLE beacon application; ESP32-C6's LP core enables efficient low-power operation but cannot match DA14531's coin-cell-optimized architecture.
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  • Protocol breadth: ESP32-C6 supports Wi-Fi 6 + BLE 5.3 + Thread + Zigbee; DA14531 supports BLE 5.1 only.
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  • Compute: ESP32-C6 runs dual cores at 160 MHz; DA14531 runs a single M0+ at 16 MHz—ESP32-C6 has ~20× more compute.
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  • Memory: ESP32-C6 has 512 KB SRAM + 4 MB flash; DA14531 has 48 KB SRAM + 128 KB OTP.
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  • Coin cell operation: DA14531 can run 10+ years from a CR2032 in low-duty-cycle beacon mode; the ESP32-C6 is not designed for coin cell operation.
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  • Cost: Both are in the $1.50–2.50 range for basic modules.
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Use Cases


Choose ESP32-C6 when:
- Multiprotocol smart home with Matter/Thread/Zigbee/Wi-Fi 6.
- Significant compute and memory are needed.
- Wi-Fi is required.


Choose DA14531 when:
- Ultra-miniature 2 mm × 2 mm form factor is a hard constraint.
- 10+ year coin-cell battery life is a product requirement.
- The application is a BLE beacon, proximity tag, or disposable IoT sensor.




Verdict


The DA14531 and ESP32-C6 serve completely different product categories. The DA14531 is unmatched for miniature, ultra-low-power BLE beacons; the ESP32-C6 is unmatched for feature-complete smart home multiprotocol connectivity. Protocol requirements and power/size constraints make the selection obvious.

  

  

  
  

  
  

    




  
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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.