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Wearable Smart Ring for Health and Connectivity

Overview

Smart rings offer a compelling opportunity for health tracking in a miniaturized format, serving as daily companions and fashion accessories. Equipped with NFC charging, payment, and authentication services, they enhance user convenience and functionality.

The Bluetooth® Low Energy (LE) SoC facilitates optimized performance, lowest-in-class power consumption, and a reduced BOM, making it ideal for highly integrated devices. Its advanced cryptographic block secures sensitive data before transmission, while the large internal memory logs data when the phone is out of reach.

System Benefits:

  • Shared NFC antenna for battery charging, payment, and authentication applications simplifies design and creates a more compact form factor.
  • Buck-boost architecture provides stable power output, promoting consistent performance, extended battery life, and improved device reliability.
  • Features advanced cryptography, Bluetooth LE 5.x support, and embedded flash memory with the lowest-in-class power consumption.

Block Diagram

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Test This Board Remotely

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4:3 ratioSheet.1Sheet.2Sheet.3Sheet.4US275US275US275Accelerometer & GyroscopeAccelerometer & GyroscopeAccelerometer & GyroscopeHeart Rate Sensor and Pulse OximeterHeart Rate Sensor and Pulse OximeterHeart Rate Sensor and Pulse OximeterFingerprint SensorFingerprint SensorFingerprint SensorTemperature SensorTemperature SensorTemperature SensorInductor Coreless (Air conductor)Sheet.43Sheet.44Sheet.45Sheet.46Sheet.47Sheet.48Sheet.49Sheet.50Sheet.51AntennaSheet.54Sheet.55Sheet.56Sheet.57Sheet.58Capacitor Non-polarizedSheet.60Sheet.61Sheet.62Sheet.63Capacitor Non-polarized .64Sheet.65Sheet.66Sheet.67Sheet.68Battery Li-ion.158Sheet.70Sheet.71Sheet.72Sheet.73Sheet.74Sheet.75Sheet.76Sheet.77Antenna.81Sheet.82Sheet.83Sheet.84Sheet.85Sheet.86Sheet.87Sheet.88Sheet.89Sheet.90Sheet.91Sheet.92Sheet.93Inductor Coreless (Air conductor).94Sheet.95Sheet.96Sheet.97Sheet.98Sheet.99Sheet.100Sheet.101Sheet.102Sheet.103Sheet.104Sheet.1051.8V1.8V1.8V3.3V3.3V3.3VSheet.109Sheet.111NFC AntennaNFC AntennaNFC Antenna 1.8V1.8V1.8VSheet.114Li-Ion Rechargeable BatteryLi-Ion Rechargeable BatteryLi-Ion Rechargeable BatterySheet.118Sheet.119Sheet.120Sheet.121Sheet.122Sheet.124Sheet.125Sheet.127Sheet.133Sheet.134Sheet.135 3.3V3.3V3.3VL1L1L13.0V-5.2V3.0V-5.2V3.0V-5.2VSheet.139Sheet.140 3.3V3.3V3.3VSheet.142Connector 1.162Sheet.144Sheet.145Sheet.146Sheet.147Sheet.148Sheet.150Sheet.151Sheet.152Sheet.153Sheet.154Sheet.155Sheet.156 1.8V1.8V1.8V 3.3V3.3V3.3V 3.3V3.3V3.3VSheet.160Sheet.161L2L2L2Sheet.163Sheet.16432M32M32MSheet.166Load SwitchLoad SwitchLoad SwitchNFC WLCNFC WLC ListenerNFC WLC ListenerNFC WLC ListenerVDMCUVDMCUVDMCUVDDCVDDCVDDCRFRFRFGPOGPOGPOVBATVBATVBATI2CI2CI2CSheet.172Buck-boostBuck-BoostBuck-BoostVinVinVinVoutVoutVoutNFC Payment/identification TagNFC Payment/identification TagNFC Payment/identification TagSheet.173SmartBond ™ Multi-Core Bluetooth ® LE 5.2 SoC with Embedded Flash VBATVBATVBATISO7816ISO7816ISO7816 I2CI2CI2C SPISPISPIBLEBLEBLE DCDCDC/DCDC/DCSmartBond ™ Multi-Core Bluetooth ® LE 5.2 SoC with Embedded FlashSmartBond™ Multi-Core Bluetooth® LE 5.2 SoC with Embedded FlashSmartBond™ Multi-CoreBluetooth® LE 5.2 SoC with Embedded Flash

Buck-Boost

Buck-boost Regulators (Integrated FETs)

NFC WLC Listener

NFC

Load Switch

Load Switches

SmartBond Multi-Core Bluetooth LE 5.2 SoC with Embedded Flash

Bluetooth Low Energy

Resources

Videos & Training

Join Sudhan Puranik, Technical Support Engineer at Renesas Electronics, as he demonstrates the innovative capabilities of our smart ring demo board. In this video, we highlight the wireless charging application using Renesas PTX130W and PTX30W products. Smart devices are increasingly integral to tracking and monitoring our lives. Our smart ring, equipped with NFC for contactless payments and wireless charging, offers a compact yet powerful solution for health and activity monitoring. The PTX30W provides a complete single-chip solution for the listener side, while the PTX130W ensures maximum power transfer and fast charging with DiRAC® technology, simplifying design and reducing production costs. Discover how Renesas' technology can revolutionize the way you interact with wearable devices. For more information, visit the Smart Ring page.

News & Blog Posts

Blog Post
Jul 25, 2024
The Future of Wearable Technology: Revolutionizing Health Monitoring with Smart Rings

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