Lowest Power BLE Chips for Battery Life

20 chips

Power consumption is the single most important specification for many BLE applications. IoT sensors, wearables, and asset trackers often run on coin cell batteries for years, making sleep current the defining factor in chip selection.\n\nThis ranking orders BLE chips by their sleep current consumption — the lower the sleep current, the longer the battery life in duty-cycled applications. A chip drawing 0.3 uA in sleep mode can run for over 5 years on a CR2032 coin cell with reasonable duty cycles.
How we ranked these

Ranked by sleep_current_ua (ascending — lower is better). Only chips with documented sleep current data are included.

🥇 #1
nRF54H20

Nordic Semiconductor · ARM Cortex-M33

Nordic's high-performance multi-protocol SoC with multiple cores and ML accelerator.

320 MHz 0.5 uA 2048KB
🥈 #2
DA14695

Dialog Semiconductor (Renesas) · ARM Cortex-M33

Dialog's BLE 5.2 SoC with integrated display driver and audio codec.

96 MHz 0.5 uA
See details →
🥉 #3
CC2340R5

Texas Instruments · ARM Cortex-M0+

TI's ultra-low-cost BLE 5.3 SoC for high-volume IoT applications.

48 MHz 0.6 uA 512KB
See details →
  1. DA14580

    Dialog Semiconductor (Renesas) · ARM Cortex-M0

    Dialog's legacy ultra-low-power BLE SoC still used in many wearables.

    16 MHz 0.6 uA
    See details →
  2. nRF54L15

    Nordic Semiconductor · ARM Cortex-M33

    Nordic's next-gen ultra-low-power SoC with BLE 5.4, PAwR, and RRAM.

    128 MHz 0.7 uA 1524KB
    See details →
  3. Apollo4 Blue Plus

    Ambiq Micro · ARM Cortex-M4F

    Ambiq's ultra-low-power BLE SoC using SPOT (subthreshold) technology for wearables.

    192 MHz 0.75 uA 2048KB
    See details →
  4. CC2642R

    Texas Instruments · ARM Cortex-M4F

    TI's dedicated BLE 5.1 SoC with low power consumption and direction finding.

    48 MHz 0.9 uA 352KB
    See details →
  5. BlueNRG-LP

    STMicroelectronics · ARM Cortex-M0+

    ST's dedicated BLE 5.2 network processor with direction finding.

    64 MHz 0.9 uA 256KB
    See details →
  6. CC2652R

    Texas Instruments · ARM Cortex-M4F

    TI's multi-protocol SoC with BLE, Zigbee, and Thread for smart home gateways.

    48 MHz 0.9 uA 352KB
    See details →
  7. nRF5340

    Nordic Semiconductor · ARM Cortex-M33

    Nordic's dual-core SoC with dedicated network processor for BLE 5.2 and LE Audio.

    128 MHz 1.0 uA 1024KB
    See details →
  8. DA14531

    Dialog Semiconductor (Renesas) · ARM Cortex-M0+

    Dialog's tiny, ultra-low-cost BLE SoC for disposable and battery-free applications.

    16 MHz 1.2 uA 48KB
    See details →
  9. EFR32BG22

    Silicon Labs · ARM Cortex-M33

    Silicon Labs' compact BLE 5.2 SoC with direction finding and low power.

    76 MHz 1.3 uA 512KB
    See details →
  10. EFR32MG24

    Silicon Labs · ARM Cortex-M33

    Silicon Labs' multi-protocol SoC for Matter with AI/ML accelerator.

    78 MHz 1.3 uA 1536KB
    See details →
  11. TLSR9518

    Telink Semiconductor · RISC-V

    Telink's cost-effective multi-protocol BLE 5.2/Zigbee/Thread SoC.

    96 MHz 1.5 uA 1024KB
    See details →
  12. nRF52840

    Nordic Semiconductor · ARM Cortex-M4

    Nordic's flagship multi-protocol SoC with BLE, Zigbee, Thread, and USB.

    64 MHz 1.5 uA 1024KB
    See details →
  13. STM32WB55

    STMicroelectronics · ARM Cortex-M4

    ST's dual-core BLE + Zigbee/Thread SoC with STM32 ecosystem support.

    64 MHz 1.5 uA 1024KB
    See details →
  14. WBZ451

    Microchip Technology · ARM Cortex-M4F

    Microchip's BLE 5.2 + Zigbee combo SoC with MPLAB Harmony integration.

    64 MHz 1.5 uA 1024KB
    See details →
  15. EFR32BG21

    Silicon Labs · ARM Cortex-M33

    Silicon Labs' long-range BLE 5.2 SoC with excellent RX sensitivity.

    80 MHz 1.5 uA 1024KB
    See details →
  16. nRF52810

    Nordic Semiconductor · ARM Cortex-M4

    Nordic's entry-level BLE 5.0 SoC for cost-sensitive beacon and tag applications.

    64 MHz 1.5 uA 192KB
    See details →
  17. nRF52833

    Nordic Semiconductor · ARM Cortex-M4

    Nordic's mid-range BLE 5.1 SoC used in BBC micro:bit v2.

    64 MHz 1.5 uA 512KB
    See details →

Frequently Asked Questions

Which BLE chip has the lowest power consumption?
Dialog Semiconductor's DA14531 and Nordic's nRF52810 are among the lowest-power BLE chips, with sleep currents under 1 uA. The actual 'best' chip depends on your specific duty cycle, TX power needs, and processing requirements.
How long can a BLE device run on a coin cell battery?
With a CR2032 battery (230 mAh) and a BLE chip drawing 1 uA in sleep with brief periodic advertising, a device can theoretically run for 5-10 years. Real-world battery life depends on advertising interval, TX power, and environmental factors.

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