• 【Advanced Health Monitoring】Track sleep, heart rate, blood oxygen levels, and stress with precision using the R03 smart ring
• 【Long-lasting Battery】Enjoy 5-7 days of active use or up to 15 days on standby with a quick 1-hour magnetic charging time
• 【Waterproof Design】5ATM water resistance rating allows for worry-free use during swimming and other water activities
• 【Multi-Sport Modes】Track various exercises and capture photos, all controllable through the QRing app
• 【Wide Compatibility】Works with Android 5.1+ and iOS 8.0+, supporting over 30 languages for global use

Specifications:

• Ring size: #7: Inner Diameter 17.9mm, #8: Inner Diameter 18.3mm, #9: Inner Diameter 19.2mm, #10: Inner Diameter 20mm, #11: Inner Diameter 20.9mm, #12: Inner Diameter 21.6mm
• Chipset: RF03
• Compatible System: Android 5.1 (inclusive) and above, IOS 8.0 (inclusive) and above
• FLASH memory: RAM 208KB FLASH 512KB
• Screen size: no
• Resolution ratio: no
• Encoder: not support
• Touch type: not support
• BT: 5.0 low-power Bluetooth chip
• Bluetooth call: not support
• WIFI: not support
• NFC: not support
• Acceleration sensor: Sitronix STK8321
• Gyroscope: not support
• Heart rate: Vcare VC30F
• GPS: not support
• Battery type: polymer lithium ion
• Ring Battery Capacity: 15mAh
• Charging Case Battery Capacity: 200mAh
• APP: QRing
• Function: Step count, sleep, heart rate, exercise data recording, health monitoring, blood pressure, blood oxygen measurement, multiple sports modes, photo taking
• Support languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Polish, Thai, Estonian, Swedish, Lithuanian, Simplified Chinese, Traditional Chinese, Romanian, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay
• Waterproof level: 5ATM
• Charging time: about 1 hour
• Battery life: 5-7 days of use, 15 days of standby
• Appearance material: stainless steel