R12 Smart Ring – LED Display, Heart Rate & SpO2, 5ATM

Meet the Ola Esporte R12 Smart Ring — a sleek, ultra-lightweight wearable that puts real-time wellness tracking right on your finger. At just 5 grams, it disappears into your everyday style while quietly logging the metrics that matter most. Available in Black, Silver, and Rose Gold, it's as much a statement piece as it is a smart device.

Disclaimer: The health monitoring data provided by this device is for general reference purposes only and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Always consult a qualified healthcare professional for medical advice. These statements have not been evaluated by the Food and Drug Administration.

Why You'll Love the R12 Smart Ring

• LED Display Screen — Glanceable stats right on your finger; no need to reach for your phone.
• Heart Rate Monitoring — Continuous optical sensing (Tianyi 3918 sensor) tracks your pulse throughout the day and during workouts.
• Blood Oxygen (SpO2) Tracking — Monitors blood oxygen saturation levels at rest and during activity.
• Sleep Monitoring — Passively tracks your sleep stages overnight so you can wake up with actionable insights.
• Activity Tracking — Logs steps, distance, and calories burned across 20 sport modes.
• 5ATM Waterproof — Rated for water resistance up to 50 metres, making it swim-, dive-, and snorkel-ready.
• Feather-Light Steel Construction — Titanium-grade steel shell with advanced low-temperature potting technology for lasting durability.
• Up to 3–4 Days Battery Life — 16 mAh cell charges fully in just 2 hours; standby stretches up to 20 days.
• App Connected — Pairs via Bluetooth with Android 9.0+ and Apple iOS 10.0+ for in-depth dashboard views of your data.
• CE & FCC Certified — Meets international safety and electromagnetic compliance standards.

Key Specifications

Getting Started

1. Charge the ring fully before first use — heart rate indicator light confirms successful startup.
2. Scan the QR code in the included manual to download the companion app.
3. Wear on your index finger for best accuracy; middle or ring finger also works well.
4. Measure your finger circumference before selecting a size — smart ring sizing may differ from standard jewellery sizing.
5. Do not use a quick or high-power charger — use a standard 1A or lower output charger only.

Perfect Gift Idea

Whether you're shopping for a birthday, a wedding, or simply treating yourself, the R12 Smart Ring makes an impressive, practical gift for the tech-savvy person in your life. Its elegant metallic finish bridges the gap between fine jewellery and cutting-edge wearable technology.

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For more information on how wearable devices can support an active lifestyle, visit the CDC Physical Activity Resource Centre.

Frequently Asked Questions

Q: What finger should I wear the R12 Smart Ring on for the most accurate readings?

A: For optimal heart rate and SpO2 accuracy, Ola Esporte recommends wearing the R12 Smart Ring on your index finger. Your middle or ring finger are good alternatives. Avoid fingers where the base is significantly narrower than the knuckle, as a poor fit can affect sensor contact and data accuracy.

Q: Is the R12 Smart Ring waterproof enough to wear swimming?

A: Yes! The R12 Smart Ring carries a 5ATM water-resistance rating, meaning it is designed to withstand water pressure equivalent to a depth of up to 50 metres. It is suitable for swimming, snorkelling, and diving. However, always ensure it is fully dried before placing it on the charger.

Q: How do I choose the right size for the R12 Smart Ring?

A: Smart ring sizing is not always identical to standard jewellery ring sizing. Before purchasing, measure the circumference of the intended finger in millimetres and compare it to the size chart. Available sizes are 8 through 14. When in doubt, size up slightly for a comfortable all-day fit.

Q: Which smartphones are compatible with the R12 Smart Ring app?

A: The R12 Smart Ring is compatible with smartphones running Android 9.0 or higher and Apple iOS 10.0 or higher. Simply scan the QR code in the included manual to download the companion app, then pair the ring via Bluetooth.

Q: How long does the battery last and how do I charge the R12 Smart Ring?

A: Under normal use (regular monitoring and syncing), expect 3–4 days of battery life per charge. In standby mode, it can last up to 16–20 days. A full charge takes approximately 2 hours using the included cable. Important: always use a standard charger rated at 1A or less — fast or high-power chargers can damage the battery.