ZBNMY Smart Ring Fitness Tracker (Silver, Size 11) — 7-Day Battery, Sleep & Heart Monitoring

The ZBNMY Smart Ring is a compact wearable that tracks heart rate, blood oxygen, sleep stages and daily activity without subscription fees.

Lightweight and finished in silver, this smart ring syncs with a free app on Android and iOS to give continuous health and activity insights. It combines 24/7 heart-rate and SpO2 monitoring, multi-sport tracking, automatic sleep analysis and a portable charging case that keeps the ring powered for days. The device meets IP68 waterproofing for everyday use and comes with guidance for accurate sizing before purchase.

How accurate is the ZBNMY Smart Ring’s health monitoring?

The ring uses optical sensors to record heart rate and blood oxygen around the clock and compiles data into readable trends inside the companion app. It is intended for general wellness tracking rather than clinical diagnostics, so use it to monitor patterns and lifestyle changes.

• 24-hour continuous heart-rate recording for trend analysis
• Blood-oxygen (SpO2) measurements on demand
• Sleep staging: deep, light, REM/eye movement and wake periods
• Data displayed in easy-to-read app charts for review

What battery life and charging options does it offer?

The ZBNMY ring charges fully in about 1–2 hours and typically delivers 5–7 days of use depending on sensor sampling and activity. It ships with a portable 500 mAh charging case for on-the-go recharges, which is designed for travelers and people who work away from power outlets.

• Fast charging: 1–2 hours to full
• 5–7 days typical battery life between charges
• Includes a 500 mAh portable charging case for extra power
• Case keeps the ring charged while stored or traveling

Can I wear this ring while exercising or showering?

Yes — the ring is IP68-rated, so it resists dust and is safe for handwashing, showering and shallow swimming. It also supports multiple sport modes to record steps, distance and estimated energy expenditure while you train.

• IP68 waterproof rating for everyday water exposure
• Multiple sport modes for walking, running and other activities
• Step counter, distance and calorie estimates included
• Durable finish made for regular wear in daily routines

Is there any ongoing cost to use the app or features?

No — ZBNMY provides lifetime free access to the companion app with no subscription fees. Once paired, the app stores and displays your tracked health information without additional charges.

• No app subscription required — lifetime free access
• Shareable health summaries for family or friends in-app
• Remote camera control and photo capture from the ring
• Compatibility with most Android and iOS devices

Who is this for? The ZBNMY Smart Ring is made for people who want discreet, everyday health and activity tracking in a jewelry-like form — commuters, travelers, fitness-minded users and anyone who prefers a ring over a wrist wearable. If you value multi-day battery life, waterproof convenience, and free app access without subscriptions, this ring offers a compact way to monitor sleep patterns, heart rate trends and daily movement while maintaining a simple, elegant look.