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Smart Watches

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Tools and Software
Key Products
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Smart watches present a unique set of challenges when it comes to design. They offer a feature-set that goes far beyond what is found in traditional watches but come with expectations of a similar form factor. The features offered by the latest smart watches include application and notification syncing with a smartphone, fitness and health monitoring, location service, voice commands, payment and wireless charging. All this needed to be packed in a very small form factor with outstanding performance and long battery life in order to deliver the best user experience.

ST provides a range of solutions to match the needs of the most advanced smart watch designs.

smart watch block diagram

Featured Videos

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ST25DV discovery kit demonstration using ST25R3911B reader
ST25DV discovery kit demonstration using ST25R3911B reader

ST25DV-I2C discovery kit demonstration using ST25R3911B reader

Getting started with STM32L475 Discovery kit for IoT Node
Getting started with STM32L475 Discovery kit for IoT Node

This video describes the main components and features of the B-L475E-IOT board and shows a typical use of this platform as an IoT node using AWS (Amazon Web Services) to demonstrate the interactions between that node and a cloud server to build an intelligent system.

Getting Started with
Getting Started with

ST25DV Discovery Kit

All resources

Application Notes (5 of 12)

Resource title
Latest update
AN4486 BlueNRG, BlueNRG-MS over-the-air bootloader 2.1
28 Feb 2020
28 Feb 2020
AN4486 BlueNRG, BlueNRG-MS over-the-air bootloader 2.1
AN4978 Design recommendations for STM32L4xxxx with external SMPS, for ultra-low-power applications with high performance 5.0
25 Sep 2018
25 Sep 2018
AN4978 Design recommendations for STM32L4xxxx with external SMPS, for ultra-low-power applications with high performance 5.0
AN4722 HTS221 digital humidity sensor: hardware guidelines for system integration 1.0
28 Feb 2020
28 Feb 2020
AN4722 HTS221 digital humidity sensor: hardware guidelines for system integration 1.0
AN2972 How to design an antenna for dynamic NFC tags 9.0
28 Feb 2020
28 Feb 2020
AN2972 How to design an antenna for dynamic NFC tags 9.0
AN5038 LIS2DW12: always-on 3D accelerometer 5.0
22 Jan 2021
22 Jan 2021
AN5038 LIS2DW12: always-on 3D accelerometer 5.0
AN5063 LPS33HW digital pressure sensor: guidelines for system integration 1.0
22 Apr 2020
22 Apr 2020
AN5063 LPS33HW digital pressure sensor: guidelines for system integration 1.0
AN4911 NDEF management with ST25DVxxx and ST25TVxxx products 4.0
28 Feb 2020
28 Feb 2020
AN4911 NDEF management with ST25DVxxx and ST25TVxxx products 4.0
AN4630 PCB design guidelines for the BlueNRG and BlueNRG-MS devices 2.1
28 Feb 2020
28 Feb 2020
AN4630 PCB design guidelines for the BlueNRG and BlueNRG-MS devices 2.1
AN4726 STM32Cube firmware examples for STM32L4 Series and STM32L4+ Series 13.0
20 Dec 2019
20 Dec 2019
AN4726 STM32Cube firmware examples for STM32L4 Series and STM32L4+ Series 13.0
AN4621 STM32L4 and STM32L4+ ultra-low-power features overview 5.0
28 Feb 2020
28 Feb 2020
AN4621 STM32L4 and STM32L4+ ultra-low-power features overview 5.0
AN5508 Social Distancing Detection using Bluetooth® Low Energy 1.1
02 Jul 2020
02 Jul 2020
AN5508 Social Distancing Detection using Bluetooth® Low Energy 1.1
AN4509 Tilt measurement using a low-g 3-axis accelerometer 1.1
30 Mar 2020
30 Mar 2020
AN4509 Tilt measurement using a low-g 3-axis accelerometer 1.1
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Technical Notes & Articles (1)

Resource title
Latest update
TN1219 HTS221 digital humidity sensor: reference design implementation 2.0
28 Feb 2020
28 Feb 2020
TN1219 HTS221 digital humidity sensor: reference design implementation 2.0

Design Notes & Tips (2)

Resource title
Latest update
DT0101 Setting up single-tap and double-tap recognition with ST's MEMS accelerometers 1.0
28 Feb 2020
28 Feb 2020
DT0101 Setting up single-tap and double-tap recognition with ST's MEMS accelerometers 1.0
DT0098 Setting up wake-up recognition and absolute/relative references with ST's MEMS accelerometers 1.0
28 Feb 2020
28 Feb 2020
DT0098 Setting up wake-up recognition and absolute/relative references with ST's MEMS accelerometers 1.0

Presentations (3)

Resource title
Latest update
EEPROM in WLCSP July 2016 1.4
28 Aug 2018
28 Aug 2018
EEPROM in WLCSP July 2016 1.4
ST25DV-I2C product presentation 2.3
26 Feb 2020
26 Feb 2020
ST25DV-I2C product presentation 2.3
STM32L4 MCU series - Excellence in ultra-low-power with performance 5.0
18 Sep 2020
18 Sep 2020
STM32L4 MCU series - Excellence in ultra-low-power with performance 5.0

Flyers (5 of 15)

Resource title
Latest update
Battery management ICs - STBC02/03 Li-Ion charger with load switches and smart reset generator 04.2017
26 Feb 2020
26 Feb 2020
Battery management ICs - STBC02/03 Li-Ion charger with load switches and smart reset generator 04.2017
BlueNRG-1 Ultra-low-power Bluetooth® Low Energy System-on-Chip 1
26 Feb 2020
26 Feb 2020
BlueNRG-1 Ultra-low-power Bluetooth® Low Energy System-on-Chip 1
EEPROM in Ultra-small packages 1.0
26 Feb 2020
26 Feb 2020
EEPROM in Ultra-small packages 1.0
LIS2DW12 Flexible ultra-low-power 3-axis smart accelerometer 1.0
26 Feb 2020
26 Feb 2020
LIS2DW12 Flexible ultra-low-power 3-axis smart accelerometer 1.0
LPS33HW 10-bar, water-resistant MEMS pressure sensor 1.0
26 Feb 2020
26 Feb 2020
LPS33HW 10-bar, water-resistant MEMS pressure sensor 1.0
Resets and supervisors - portfolio overview 1.0
25 Feb 2020
25 Feb 2020
Resets and supervisors - portfolio overview 1.0
ST Protection Finder - The new app for Android and iOS 1.0
02 Mar 2020
02 Mar 2020
ST Protection Finder - The new app for Android and iOS 1.0
ST25DV-I2C series flyer 1.1
26 May 2020
26 May 2020
ST25DV-I2C series flyer 1.1
STM32 GUI solutions - Advanced HMI now achievable on embedded systems 17.12
21 Jan 2019
21 Jan 2019
STM32 GUI solutions - Advanced HMI now achievable on embedded systems 17.12
STM32L4 Series - Ultra-low-power and performance 18.10
26 Feb 2020
26 Feb 2020
STM32L4 Series - Ultra-low-power and performance 18.10
STM32L4+ Series - Ultra-low-power and more performance 20.4
15 Apr 2020
15 Apr 2020
STM32L4+ Series - Ultra-low-power and more performance 20.4
STM32WB Wireless Series Bluetooth LE™ 5.0 and IEEE 802.15.4 20.10
11 Jan 2021
11 Jan 2021
STM32WB Wireless Series Bluetooth LE™ 5.0 and IEEE 802.15.4 20.10
STTS75 2.2
26 Feb 2020
26 Feb 2020
STTS75 2.2
SensorTile an IoT design lab
26 Feb 2020
26 Feb 2020
SensorTile an IoT design lab
Serial EEPROM 1.0
26 Feb 2020
26 Feb 2020
Serial EEPROM 1.0
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Selection Guides (2)

Resource title
Latest update
Linear and Switching Voltage Regulators Selection Guide 3.0
04 Jan 2021
04 Jan 2021
Linear and Switching Voltage Regulators Selection Guide 3.0
Protection devices and integrated EMI filtering selection guide 2.0
23 Mar 2020
23 Mar 2020
Protection devices and integrated EMI filtering selection guide 2.0

Brochures (5 of 6)

Resource title
Latest update
NFC solutions from ST 1.0
23 Nov 2020
23 Nov 2020
NFC solutions from ST 1.0
Products and solutions for Wearable devices 1.0
23 Nov 2020
23 Nov 2020
Products and solutions for Wearable devices 1.0
Products and solutions for secure wearables 1.0
23 Nov 2020
23 Nov 2020
Products and solutions for secure wearables 1.0
ST’s solutions for mobile devices 3.2
23 Nov 2020
23 Nov 2020
ST’s solutions for mobile devices 3.2
Secure solutions portfolio 2.0
23 Nov 2020
23 Nov 2020
Secure solutions portfolio 2.0
Serial real-time clock ICs 1.0
26 Feb 2020
26 Feb 2020
Serial real-time clock ICs 1.0
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All tools & software

    • Part number
      		Status
      		Description
      		Type
      		Supplier

      AlgoBuilder

      Active

      Application for the graphical design of algorithms

      		 Sensor Software Development Tools ST
      AlgoBuilder

      Description:

      Application for the graphical design of algorithms

      STM32CubeMX

      Active

      STM32Cube initialization code generator

      		 STM32 Configurators and Code Generators ST
      STM32CubeMX

      Description:

      STM32Cube initialization code generator
    • Part number
      		Status
      		Description
      		Type
      		Supplier

      X-CUBE-53L0A1

      Active

      Ranging sensor software expansion for STM32Cube

      		 STM32 ODE Sense SW ST
      X-CUBE-53L0A1

      Description:

      Ranging sensor software expansion for STM32Cube

      X-CUBE-53L1A1

      Active

      Long Distance Ranging sensor software expansion for STM32Cube

      		 STM32 ODE Sense SW ST
      X-CUBE-53L1A1

      Description:

      Long Distance Ranging sensor software expansion for STM32Cube
    • Part number
      		Status
      		Description
      		Type
      		Supplier

      STSW-BCNKT01

      Active

      Embedded software samples for BlueCoin: data streaming via USB and BLE, logging on SD card, gesture recognition, audio acquisition and playback

      		 Evaluation Tool Software ST
      STSW-BCNKT01

      Description:

      Embedded software samples for BlueCoin: data streaming via USB and BLE, logging on SD card, gesture recognition, audio acquisition and playback

      ST_WESU

      Active

      STEVAL-WESU1 Android/iOS app

      		 Evaluation Tool Software ST
      ST_WESU

      Description:

      STEVAL-WESU1 Android/iOS app
    • Part number
      		Status
      		Description
      		Type
      		Supplier

      FP-NET-BLESTAR1

      Active

      STM32Cube function pack for creating a BLE star network connected via Wi-Fi to IBM Watson IoT cloud

      		 STM32 ODE Function Pack SW ST
      FP-NET-BLESTAR1

      Description:

      STM32Cube function pack for creating a BLE star network connected via Wi-Fi to IBM Watson IoT cloud

      FP-SNS-ALLMEMS1

      Active

      STM32 ODE function pack for IoT node with BLE connectivity, digital microphone, environmental and motion sensors

      		 STM32 ODE Function Pack SW ST
      FP-SNS-ALLMEMS1

      Description:

      STM32 ODE function pack for IoT node with BLE connectivity, digital microphone, environmental and motion sensors

      FP-SNS-MOTENV1

      Active

      STM32Cube function pack for IoT node with BLE connectivity and environmental and motion sensors

      		 STM32 ODE Function Pack SW ST
      FP-SNS-MOTENV1

      Description:

      STM32Cube function pack for IoT node with BLE connectivity and environmental and motion sensors

      STM32CubeL4

      Active

      STM32Cube MCU Package for STM32L4 series and STM32L4 Plus series (HAL, Low-Layer APIs and CMSIS, USB, TouchSensing, File system, RTOS, Graphic - and examples running on ST boards)

      		 STM32Cube MCU & MPU Packages ST
      STM32CubeL4

      Description:

      STM32Cube MCU Package for STM32L4 series and STM32L4 Plus series (HAL, Low-Layer APIs and CMSIS, USB, TouchSensing, File system, RTOS, Graphic - and examples running on ST boards)

      X-CUBE-6180XA1

      Active

      Proximity and ambient light sensor software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-6180XA1

      Description:

      Proximity and ambient light sensor software expansion for STM32Cube

      X-CUBE-BLE1

      Active

      Bluetooth Low Energy software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-BLE1

      Description:

      Bluetooth Low Energy software expansion for STM32Cube

      X-CUBE-MEMS-XT1

      NRND

      Sensor and DSP algorithm software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-MEMS-XT1

      Description:

      Sensor and DSP algorithm software expansion for STM32Cube

      X-CUBE-MEMS1

      Active

      Sensor and motion algorithm software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-MEMS1

      Description:

      Sensor and motion algorithm software expansion for STM32Cube

      X-CUBE-MEMSMIC1

      Active

      Analog and digital MEMS microphone acquisition and processing software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-MEMSMIC1

      Description:

      Analog and digital MEMS microphone acquisition and processing software expansion for STM32Cube

      X-CUBE-NFC1

      Active

      STM32Cube expansion software for X-NUCLEO-NFC01A1

      		 STM32Cube Expansion Packages ST
      X-CUBE-NFC1

      Description:

      STM32Cube expansion software for X-NUCLEO-NFC01A1

      X-CUBE-NFC4

      Active

      Dynamic NFC/RFID tag IC software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-NFC4

      Description:

      Dynamic NFC/RFID tag IC software expansion for STM32Cube

      X-CUBE-NFC5

      Active

      High performance HF reader/NFC initiator IC software expansion for STM32Cube

      		 STM32Cube Expansion Packages ST
      X-CUBE-NFC5

      Description:

      High performance HF reader/NFC initiator IC software expansion for STM32Cube
    • Part number
      		Status
      		Description
      		Type
      		Supplier

      AndroidHAL-IIO

      Active

      Android sensor HAL for MEMS motion and environmental sensors (Industrial I/O framework)

      		 Drivers for MEMS ST
      AndroidHAL-IIO

      Description:

      Android sensor HAL for MEMS motion and environmental sensors (Industrial I/O framework)

      AndroidHALInput

      Active

      Android sensor HAL for MEMS motion and environmental sensors (Input framework)

      		 Drivers for MEMS ST
      AndroidHALInput

      Description:

      Android sensor HAL for MEMS motion and environmental sensors (Input framework)

      C-Driver-MEMS

      Active

      Standard C platform-independent drivers for MEMS motion and environmental sensors

      		 Drivers for MEMS ST
      C-Driver-MEMS

      Description:

      Standard C platform-independent drivers for MEMS motion and environmental sensors

      LinuxDriverIIO

      Active

      Linux device drivers for MEMS motion and environmental sensors (Industrial I/O framework)

      		 Drivers for MEMS ST
      LinuxDriverIIO

      Description:

      Linux device drivers for MEMS motion and environmental sensors (Industrial I/O framework)

      LinuxDriverInput

      Active

      Linux device drivers for MEMS motion and environmental sensors (Input framework)

      		 Drivers for MEMS ST
      LinuxDriverInput

      Description:

      Linux device drivers for MEMS motion and environmental sensors (Input framework)
    • Part number
      		Status
      		Description
      		Type
      		Supplier

      STSW-ST25001

      Active

      Application executable of the "NFC Tap" Android app for ST25 product family

      		 ST25 - NFC / RFID Software ST
      STSW-ST25001

      Description:

      Application executable of the "NFC Tap" Android app for ST25 product family

      STSW-ST25DV001

      Active

      Firmware for ST25DV-DISCOVERY kit

      		 ST25 - NFC / RFID Software ST
      STSW-ST25DV001

      Description:

      Firmware for ST25DV-DISCOVERY kit

      STSW-ST25IOS001

      Active

      Application executable of the "NFC Tap" iOS app for ST25 product family

      		 ST25 - NFC / RFID Software ST
      STSW-ST25IOS001

      Description:

      Application executable of the "NFC Tap" iOS app for ST25 product family

      STSW-ST25R004

      Active

      Antenna Matching Tool for ST25R NFC/HF reader family

      		 ST25 - NFC / RFID Software ST
      STSW-ST25R004

      Description:

      Antenna Matching Tool for ST25R NFC/HF reader family

      STSW-ST25SDK001

      Active

      Software Development Kit for ST25 Tags and Dynamic Tags

      		 ST25 - NFC / RFID Software ST
      STSW-ST25SDK001

      Description:

      Software Development Kit for ST25 Tags and Dynamic Tags
    • Part number
      		Status
      		Description
      		Type
      		Supplier

      BlueMS

      NRND

      This app has been replaced by STBLESensor

      		 Wireless Connectivity Software ST
      BlueMS

      Description:

      This app has been replaced by STBLESensor

      STSW-BLEPROFILES

      Active

      BlueNRG-1 BLE Profiles SW package

      		 Wireless Connectivity Software ST
      STSW-BLEPROFILES

      Description:

      BlueNRG-1 BLE Profiles SW package

      STSW-BNRG-Mesh

      Active

      Mesh over Bluetooth Low Energy

      		 Wireless Connectivity Software ST
      STSW-BNRG-Mesh

      Description:

      Mesh over Bluetooth Low Energy

      STSW-BNRGLP-Mesh

      Active

      Mesh over Bluetooth low energy

      		 Wireless Connectivity Software ST
      STSW-BNRGLP-Mesh

      Description:

      Mesh over Bluetooth low energy

      SensNet

      NRND

      This app has been replaced by STBLEStarNet

      		 Wireless Connectivity Software ST
      SensNet

      Description:

      This app has been replaced by STBLEStarNet