ZBNMY Smart Ring Fitness Tracker (Black, Size 11) — Subscription-Free Health Monitor, 7-Day Battery & IP68

The ZBNMY Smart Ring is a compact, subscription-free wearable that tracks heart rate, SpO2, sleep stages, steps and workouts while offering up to seven days of battery life and IP68 water resistance.

This lightweight ring blends daily activity tracking with continuous health monitoring in a low-profile design. Pair it with the free ZBNMY app on Android or iOS to view heart rate trends, sleep reports, step counts and exercise summaries without any ongoing fees. The package includes a portable 500 mAh charging case so you can recharge on the go and maintain multi-day use between charges.

How accurate is the ZBNMY ring for heart rate and blood oxygen monitoring?

The ring measures heart rate and blood oxygen (SpO2) continuously throughout the day and during sleep to provide trend data you can review in the app. While not a medical device, it gives useful day-to-day insights and flags changes in typical patterns.

• 24/7 optical heart rate sensing for trend tracking
• Intermittent SpO2 readings for daytime and sleep monitoring
• Data stored and displayed in the free app, no subscription required

Will the ring survive daily wear, water exposure and workouts?

The ZBNMY ring carries an IP68 waterproof rating so it tolerates handwashing, showers and shallow swimming. Its durable build makes it suitable for gym sessions and everyday activity without frequent removal.

• IP68 rating for protection against dust and water immersion
• Scratch-resistant finish designed for regular use
• Comfort-first shape for continuous 24/7 wear, including sleep

How long does the battery last and what about charging on the road?

A single charge delivers about 5–7 days of typical use depending on monitoring frequency and settings. The included portable charging case (500 mAh) extends time away from outlets and fully recharges the ring in 1–2 hours.

• 5–7 days per charge under normal usage
• Fast 1–2 hour recharge for the ring itself
• 500 mAh charging case for multiple top-ups during travel

How do I ensure the ring fits correctly and connects with my phone?

Measure your finger with the string method shown in the product images before ordering and consult the size chart to pick the closest match; pulling the string slightly tighter or choosing one size down often improves fit. The ring connects to the ZBNMY app on Android and iOS via Bluetooth for setup, live data sync and sharing options.

• Follow the provided string measurement method for outer circumference
• Compare to the size chart and consider one size smaller for a snug fit
• Bluetooth pairing to the free app with options to share health data

Who this is for: The ZBNMY Smart Ring suits people who want a discreet, wearable way to monitor daily activity, sleep quality and basic biometric trends without monthly subscription costs. It’s ideal for frequent travelers who value long battery life and a portable charging case, couples or families wanting to share simple health summaries, and anyone seeking a low-profile alternative to wristwear for continuous tracking.