ZBNMY Smart Ring, Silver, Size 7

The ZBNMY Smart Ring is a screen-free health tracker in silver, size 7, designed to pair with iOS and Android phones. It is listed for sleep and motion tracking, heart-rate monitoring and app access without a subscription, with a claimed 5–7-day battery life.

At a glance

The listing says the app has no subscription fee and offers free access to health data.
Sleep tracking is described as recording deep and light sleep, eye movement and wakefulness, with reports viewed in the app.
The manufacturer claims continuous heart-rate and other health-data tracking.
A remote photo-control function is also claimed.

Price

$45.99Save 23%

Reference price: ~~$59.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

No subscription fee is claimed for app access, which may suit buyers avoiding recurring costs.
The claimed battery range of 5–7 days and included charging case may reduce the need to charge daily.
iOS and Android compatibility is listed, and Bluetooth is the stated wireless connection.

Cons

No built-in display is listed, so the ring's tracking information is intended to be viewed in the phone app.

Technical specifications

15 specifications

Identity and display
Brand	ZBNMY
Colour	Silver
Screen technology listed	No Display

Connectivity and compatibility
Wireless connection listed	Bluetooth
Compatible phone operating systems	IOS,Android
Compatible device	Smartphone
GPS	No GPS

Tracking and use
Listed health feature	Heart Rate Monitor
Metric listed	Heart Rate
Listed wearable type	Smart Ring

Battery and water claims
Claimed battery life	5–7 days
Claimed charging time	1–2 hours
Charging case battery capacity claimed	500 mah
Water-resistance claim	IP68 waterproof certification

Package dimensions
Parcel dimensions and weight	7.8 x 7.7 x 4.4 cm; 30 g

What to know before buying

Listing details to confirm

Battery life is a listing claim and is stated to depend on usage. The title says 7 days, while the detailed claim gives 5–7 days. The title and feature text call the ring waterproof, but the supplied specifications do not establish use conditions beyond the feature text's handwashing, showers and shallow swimming examples. Confirm finger sizing using the listing's measurement guidance, since the seller recommends a snug fit and the selected variant is size 7.

Who is it for?

A good fit for

People who want a screen-free ring tracker with app-based sleep and heart-rate information.
Buyers looking for a tracker advertised without an app subscription and compatible with iOS or Android.

Less suited to

People who need a display on the wearable or built-in GPS.
Buyers who require independently verified health measurements or water-resistance performance.

ZBNMY Smart Ring, Silver, Size 7 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 101 ratings

5 stars92%92%
4 stars4%4%
3 stars2%2%
2 stars0%0%
1 star2%2%

Aggregate ratings are strongly positive overall, with most ratings in the five-star category, but a small share are one-star and some fall in the middle. The figures do not explain why customers rated the ring this way, so they cannot confirm tracking accuracy, battery performance or comfort for a particular wearer.

Frequently asked questions

Does the ring require a subscription?

The listing claims that the health app and health-data access do not require a subscription.

How long does the battery last?

The detailed listing claim is 5–7 days per charge depending on usage. The title also says 7 days, so treat that as a stated maximum rather than a guaranteed duration.

Which phones are compatible?

The listing states compatibility with iOS 10.0 and Android 8.0 and up. Bluetooth is the listed wireless connection.

How should I choose a size?

The seller recommends measuring the outer circumference of the finger with its string method and comparing it with the size chart. The seller also advises a snug measurement or choosing one size smaller to help prevent slipping.