Chip vs Chip

DA14695 vs EFR32MG24

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Side-by-side comparison of DA14695 and EFR32MG24 BLE SoCs.

    
    

      
    

  


  
  
  

    
      

        A
        
DA14695

      

      

    
    
      

        B
        
EFR32MG24

      

      

    
  

  

  
  

  






  
  

    
DA14695 vs EFR32MG24: Wearable Champion vs. Matter-Ready Multi-Protocol SoC


The DA14695 and EFR32MG24 are both high-capability ARM Cortex-M33 wireless SoCs, but they serve fundamentally different ecosystems: DA14695 is optimized for feature-rich wearables, while EFR32MG24 is built for multi-protocol IoT infrastructure including Thread/Wi-Fi." data-category="Protocols & Profiles">Matter, Thread, and AI/ML-enhanced sensing.




Overview


DA14695 from Dialog Semiconductor (Renesas) integrates BLE 5.1 with a rich wearable peripheral set: multi-rail PMU, QSPI for external memory, USB 2.0, I²S audio, display controller, capacitive touch, and 512 KB SRAM. Running the Cortex-M33 at 96 MHz, it is Dialog's top-tier wearable solution for smartwatches, advanced fitness trackers, and medical monitoring wearables.


EFR32MG24 from Silicon Labs is designed explicitly for the Matter protocol era. It runs a 78 MHz Cortex-M33 with 1.5 MB flash, 256 KB RAM, BLE 5.3, Thread, Zigbee, and proprietary 2.4 GHz simultaneously. Secure Vault provides hardware security, and a dedicated AI/ML accelerator enables on-device inference alongside radio operation. Matter certification through Silicon Labs' GSDK makes EFR32MG24 one of the most complete single-chip Matter device platforms available.




Key Differences


    

  • Multi-protocol: EFR32MG24 supports BLE + Thread + Zigbee + proprietary simultaneously; DA14695 is BLE 5.1-only.
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  • Matter: EFR32MG24 is Matter-certified for Thread; DA14695 supports BLE-based Matter commissioning but is not a Thread device.
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  • AI/ML: EFR32MG24 has a dedicated hardware ML accelerator; DA14695 has none.
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  • Flash: EFR32MG24 has 1.5 MB; DA14695 has 512 KB on-chip plus external QSPI.
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  • RAM: DA14695 has 512 KB SRAM plus expandable QSPI PSRAM; EFR32MG24 has 256 KB RAM.
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  • Wearable peripherals: DA14695 integrates PMU, display, touch, USB, I²S; EFR32MG24 has none of these wearable-specific interfaces.
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  • Security: EFR32MG24's Secure Vault offers hardware attestation; DA14695 relies on TrustZone.
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  • Operating voltage: DA14695's PMU accepts a wide input range; EFR32MG24 requires a more constrained supply.
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Use Cases


DA14695 Excels At


Smartwatches and wrist-worn medical devices that require coordinated power management of a color display, touch panel, multiple sensors, BLE radio, and USB interface simultaneously need DA14695's integrated PMU. No multi-protocol IoT SoC offers this level of wearable-specific peripheral integration.


LC3 codec and Auracast." data-category="LE Audio">LE Audio-enabled hearing aids (future roadmap for DA14695 successors) and advanced medical wearables requiring USB-based data offload to clinical systems use the DA14695 as a platform.


EFR32MG24 Excels At


Matter accessories — smart plugs, thermostats, occupancy sensors, light switches — that need to participate in a Thread mesh and support BLE commissioning with a smartphone. EFR32MG24's certified Matter stack and 1.5 MB flash for OTA update images make it the most capable single-chip solution.


AI-enhanced IoT sensors using on-device inference for anomaly detection, predictive maintenance, or keyword spotting with EFR32MG24's ML accelerator running while the Thread radio maintains mesh connectivity.


OTA-first deployments where firmware update reliability is critical benefit enormously from EFR32MG24's 1.5 MB flash. A typical Matter device requires approximately 400–600 KB for the Thread + Matter stack, leaving 900+ KB for application code and a full OTA download buffer in the remaining partition. DA14695's 512 KB on-chip flash is insufficient for this without adding external QSPI flash — adding BOM cost and PCB complexity.


Concurrent multi-protocol smart home nodes that simultaneously maintain a Thread mesh connection, advertise BLE for additional device commissioning, and periodically scan for Zigbee devices (bridging legacy networks) use EFR32MG24's multi-protocol radio time-slicing. DA14695's BLE 5.1-only radio cannot participate in Thread or Zigbee networks at any level.




Verdict


DA14695 and EFR32MG24 serve different product categories with limited overlap. If the product is a body-worn device with a color display, audio interface, USB connectivity, and multi-sensor power management, DA14695 is the correct platform — its integrated PMU, 512 KB SRAM, and rich peripheral set are purpose-built for this class of wearable.


If the product is a smart home or industrial IoT accessory needing multi-protocol Matter connectivity, on-device AI inference, hardware security certification, or large on-chip flash for fail-safe OTA updates, EFR32MG24 is the correct platform. Its 1.5 MB flash, Secure Vault, ML accelerator, and certified Thread + Matter stack are features that DA14695's BLE-only architecture cannot replicate.


The one scenario where direct comparison matters is a connected medical wearable intended to also participate in a smart home ecosystem — in that case, DA14695's wearable peripherals versus EFR32MG24's protocol flexibility represents a fundamental architecture decision best resolved by prioritizing the device's primary user interaction: body-worn UI (DA14695) or infrastructure node function (EFR32MG24).

  

  

  
  

  
  

    




  
Frequently Asked Questions


  

    
    

      
      

        
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.