# RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10

Silver: The RENPHO Lynx smart ring \(R-MZW01\) is a size 10 wearable that tracks sleep, activity, heart rate and other listed health metrics through the RENPHO Health app. Its no-subscription claim and compact ring format may suit buyers who want app-based tracking without a wrist-worn device, though correct sizing is particularly important.

- [Original product page](https://best-deals.pro/product/renpho-lynx-r-mzw01-smart-ring-silver-size-10)
- [View offer](https://best-deals.pro/visit/renpho-lynx-r-mzw01-smart-ring-silver-size-10)
- Market: US
- Language: en-US
- Currency: USD
- Brand: RENPHO
- Model: R-MZW01
- Category: Electronics > Smartwatches & Fitness Trackers > Smartwatches
- Price: 154.99 USD
- Previous price: 199.00 USD
- Discount: 22%
- Price checked: 2026-11-14T06:57:56.628Z
- Rating: 4 / 5
- Reviews: 749

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Tracks sleep, heart rate, blood oxygen, stress, steps, distance and calories according to the listing.
- The RENPHO Health app is listed as compatible with iOS and Android, with no subscription fees required.
- The listing claims a 7-day battery life and says a charging case is included.
- Sizing is unique to RENPHO Lynx. The listing recommends using the official RENPHO sizing kit before purchase.

## Pros

- No subscription fees are required for the RENPHO Health app, according to the listing.
- A broad set of sleep and activity measurements is listed, including heart rate, blood oxygen and stress.
- The compact ring form weighs 4.81 g according to the listing.

## Cons

- No GPS is listed, so the ring is not presented as a standalone GPS tracker.

## Specifications

### Identity
- Brand: RENPHO
- Model: R-MZW01
### Display and video
- Screen technology listed: LED
### Connectivity and controls
- Wireless connection listed: Bluetooth
- App / operating system listed: RENPHO Health
- Phone compatibility: Compatible with iOS and Android devices
### Power and battery
- Battery type: Lithium Ion
### Dimensions and installation
- Form factor: Round
- Dimensions listed: 0.78 x 0.78 x 0.12 inches
- Weight listed: 4.81 g
- Size: Size 10
### Materials and protection
- Water resistance listed: Waterproof
- Water resistance depth: 50 meters
- Material listed: Titanium Alloy PC Resin
### Tracking and features
- Listed features: Sleep Monitor, Activity Tracker, Heart Rate Monitor
- Metrics listed: Sleep Duration, Heart Rate, Blood Oxygen, Stress, Distance, Step Count, Calories Burned
- GPS: No GPS
- App subscription: No subscription fees required
- Battery life claim: 7-day battery life

## Before you buy

- The listing recommends measuring with the official RENPHO sizing kit because Lynx sizing differs from standard jewelry rings and other brands. It also says to wear the orientation marker toward the palm and recommends the index finger of the nondominant hand for sensing accuracy.
- The title and product details identify a ring-only style, while a feature claim says a charging case is included. Confirm whether a charging case is part of the selected listing before buying. The listing also labels the display technology as LED despite describing a ring, and its dimensions differ between 0.78 x 0.78 x 0.12 inches and 0.12"D x 0.12"W x 0.12"H. These details are inconsistent or unconfirmed, not established product defects.

## In the box

- Smart ring (Included)
- Charging case (Check selected pack): Mentioned in a feature claim but not established by the ring-only style and supplied package information. Check the selected listing.

## A good fit for

- Buyers seeking app-based sleep, heart-rate and activity tracking in a ring rather than a wrist wearable.
- People who want the listed iOS and Android compatibility and no app subscription fees.

## Less suited to

- Buyers who need GPS tracking from the wearable itself.
- Anyone unwilling to check ring sizing with the brand-specific sizing kit before ordering.

## Customer feedback

Aggregate customer ratings are mixed overall: most fall in the five-star category, but a notable share are one-star ratings. The rating distribution does not explain the reasons behind individual scores, so it cannot establish particular strengths or defects. Consider whether the listed sleep and activity tracking, app compatibility and brand-specific sizing suit your needs.

## Frequently asked questions

### Does the RENPHO Lynx require an app subscription?
The listing says the RENPHO Health app has no subscription fees required.
### Which phones are compatible?
The listing says the app is compatible with iOS and Android devices.
### How should I choose the size?
The listing says Lynx sizing differs from standard jewelry rings and recommends using the official RENPHO sizing kit before purchase.
### Does it have GPS?
No. The listed GPS specification is “No GPS.”

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## Images

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 1](https://best-deals.pro/i/lVb2Vv_ih3LKnK6kulpCKluSUd5ifZQtD6CqkjSyxvBlPn6rJTd-yXeGm66pmTTI7cTjxAoK6wEHtIS6qBI_ux9Xt2ohcIdIhFz-Y4sihXZd-DV6YQoD53n6.jpg)

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 2](https://best-deals.pro/i/gp8quPkj9Bbrbwbypi5AK-MFPJkIe9Y-cBDsaRmxdbbFMKNqZP8XAFI6_e1PtJVq8RVsXwI6sd__2cLgu1luRAqP-MO7kHQ9sRjBDMjlc1Ps0wjFvICk_-ft.jpg)

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 3](https://best-deals.pro/i/oZLiKgq-pwsBE5TrYnM_NAvqoTKHfXvGYWISTRvRitxGLr2fe1Q_WYRwv0_bg-mxw6WM_3Rr0En9KxjDF1sJdEnNrkw3DrlOWeLXGP3MwMWVXTm2NyBohudr.jpg)

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 4](https://best-deals.pro/i/XBXVEgOoffbf53JNmzfxQHsFvI294n_t7-4c5px2DXYXBFLSXrY1kCjXAvChYgW0nnIfHSgZiscHu161muc1eiu-fIwGykNJYQ3FdHqm7Cp7WAP1eoOfj5VI.jpg)

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 5](https://best-deals.pro/i/5kvWmGt1SUPZXE5p6uoBgpOLE5E-FRq7GzCEupMnhQfYU-9sp27lhBgdHtzJq37b8Od2LB1jNp0E5NizQ2n1-uG5kykeisA26xuHH0GKW7U55IDGrbxIFHPt.jpg)

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 6](https://best-deals.pro/i/ATIqNexjEWiqx-RiVyeJDH7bt-16zH2Y1LFb3ONCVU3I35qBAFBTNiblX6dplpAk1iR33qEfv3pLGsZ7kmFpegF5oKqAysjECKtQ511NVG9AmPT507NN_xxF.jpg)

![RENPHO Lynx Smart Ring R-MZW01, Silver, Size 10 — 7](https://best-deals.pro/i/d9iGJxsUhhmHxwpjGnkykN-bUrxQsYTZRApiZVt0RN1W0Oe3F-dYbJUhPzVRer4Kvh1AeaxjlK69GoYMHY3rfskEhpkovzMkaarcKsVJi0xU-iTXArPG5zww.jpg)