# AutrefoisElf Smart Ring Gen 4 Fitness Tracker

Tracker: The AutrefoisElf Smart Ring Gen 4 is a screen-free Bluetooth wearable for fitness and wellness tracking. Its listing describes heart-rate, sleep, stress, blood-oxygen, activity and cycle tracking, but the battery-life claims differ between the details and feature copy. Confirm sizing carefully, since the listing recommends its own sizing chart or kit.

- [Original product page](https://best-deals.pro/product/autrefoiself-smart-ring-gen-4-fitness-tracker)
- [View offer](https://best-deals.pro/visit/autrefoiself-smart-ring-gen-4-fitness-tracker)
- Market: US
- Language: en-US
- Currency: USD
- Brand: AutrefoisElf
- Model: Smart Ring Gen 4
- Price: 45.89 USD
- Previous price: 53.99 USD
- Discount: 15%
- Price checked: 2026-11-14T06:24:03.730Z
- Rating: 4.1 / 5
- Reviews: 84

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

- The listing describes 24/7 heart-rate, HRV, sleep, stress and blood-oxygen tracking. Blood-oxygen and stress tracking must be enabled in app settings, according to the listing.
- Feature copy claims 140+ sport modes, sleep-stage tracking and cycle tracking. The technical details also list activity tracking and daily workout memory.
- Bluetooth connection and listed compatibility with Android, iOS and HarmonyOS require a paired smartphone or tablet for app-based information.
- The listing gives ring sizes 6–14 and recommends measuring carefully or using its sizing kit before purchase.

## Pros

- No display keeps the ring focused on wearable tracking rather than on-wrist viewing.
- Listed smartphone compatibility spans Android, iOS and HarmonyOS.
- The listing describes app-based tracking without a recurring subscription fee.

## Cons

- No GPS is listed, so GPS-based location tracking is not provided by the ring itself.
- Without a display, checking tracking information requires a compatible device and app.

## Specifications

### Identity
- Brand: AutrefoisElf
- Model: Smart Ring Gen 4
### Display and video
- Display: No Display
### Connectivity and controls
- Wireless connection: Bluetooth
- Input: Gesture
- Compatible devices: Smartphone, Tablet
- Operating systems: Android 8.0+, Apple iOS 10.0+, HarmonyOS
### Power and battery
- Battery life listed: 5 days
- Battery capacity: 20 milliamp\_hours
- Battery type: Lithium Ion
- Charge time: 1 hours
### Dimensions and installation
- Form factor: Round
- Weight: 4.5 g
- Dimensions (D × W × H): 0.2"D x 0.2"W x 0.2"H
### Materials and protection
- Water resistance listed: Waterproof
- Water resistance depth: 50 meters
### Computing specifications
- Storage: 4 MB
### Tracking and features
- Metrics measured: Heart Rate Monitor
- Additional features: Activity Tracker, Cycle Tracking, Daily Workout Memory, Multisport Tracker
- GPS: No GPS
- Color: Rosegold

## Before you buy

- Battery claims are inconsistent: the technical details list 5 days, feature copy says 3–5 days per charge and up to 30 days total with the charging case, and another feature describes a 1-hour charge. The 50-meter waterproof claim and 140+ sport-mode count appear in feature copy, while the technical details only say Waterproof and Multisport Tracker. Treat these as listing claims, not independently verified performance. The ring is intended for everyday wellness tracking, not medical diagnosis. Size carefully because the seller says its sizing may differ from standard jewelry sizes.

## In the box

- AutrefoisElf smart ring (Included)
- Cable (Included)
- Charging case (Included)
- User manual (Included)
- Quick guide (Included)

## A good fit for

- Buyers seeking a screen-free wearable for sleep, heart-rate and daily activity tracking.
- People who want cycle tracking and listed compatibility with Android, iOS or HarmonyOS devices.
- Buyers willing to size their finger using the supplied chart or a sizing kit before ordering.

## Less suited to

- Anyone who needs GPS from the ring itself or a display for viewing data on the wearable.
- Buyers who need a confirmed, single battery-life figure or independently established water-resistance performance.

## Customer feedback

Customer feedback highlights the ring's appearance, functionality and perceived value. That feedback may matter to buyers considering a compact, screen-free tracker, but it does not establish tracking accuracy or resolve the listing's conflicting battery-life claims. Ratings are generally positive, though a noticeable minority are one-star, so experiences are not uniformly favorable.
- Positive themes: Customers describe the design positively.
- Positive themes: Customers report that the ring is functional and practical.
- Positive themes: Customers express positive views about its value for money.

## Frequently asked questions

### Does the ring have a screen or GPS?
The listing specifies No Display and No GPS. It connects by Bluetooth and lists smartphone and tablet compatibility.
### How long does the battery last?
The technical details list 5 days. Feature copy separately claims 3–5 days per charge and up to 30 days total with the charging case, so the figures are not consistent.
### What ring sizes are available, and how should I choose?
The feature copy lists sizes 6–14 and recommends measuring your finger against the seller's chart or using its sizing kit. It warns that its sizing standard may differ from standard jewelry rings.
### Does the listing say a subscription is required?
No. The listing claims app-based tracking without a monthly subscription fee.

## Offer details

- The listing describes blood-oxygen and stress monitoring as requiring manual activation in app settings.

## Alternative options

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- [RingConn Gen 3 Smart Ring - Vascular Trends\(Size 9, Future Silver\) \| No App Subscription, Vibration Alerts, Sleep, Fitness & Heart Rate, 14-Day Battery Life, Size Before You Buy](https://best-deals.pro/visit/autrefoiself-smart-ring-gen-4-fitness-tracker)
- [COLMI Ring 2 Thin Smart Ring for Women, No Subscription Fee, Sleep Tracker. \| Fitness Ring, Jewelry-inspired Style with Lightweight Comfort, AI Health Analysis, Long Battery Life, 5ATM.Black Radiant,9\#](https://best-deals.pro/visit/autrefoiself-smart-ring-gen-4-fitness-tracker)
- [POBOVi Gen2 Titanium Smart Ring, Silver, Polished, Size 9 \| Sleep & Fitness Tracking, Heart Rate, SpO2 & Stress, No Subscription, Lightweight, iOS & Android, Size Before You Buy](https://best-deals.pro/visit/autrefoiself-smart-ring-gen-4-fitness-tracker)
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## Add-ons

- [Smart Ring Fitness Trackers for Men Women, Sleep Tracker Ring, Health Rings \| Fitness Ring Gen4, No APP Fee, HRV/Stress/Sleep](https://best-deals.pro/visit/autrefoiself-smart-ring-gen-4-fitness-tracker)

## Images

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 1](https://best-deals.pro/i/8Jf-rXBhfIxOBMMwxzqlYKgfOXofnlaT1rcsWWMoskvctsHlWeslyYD5yEGJti7PI4g3qymlSFzg0QW1UxN6PHNZ-twUqHY9L0xy4mfvq2N8gF5xkgqrrQGR.jpg)

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 2](https://best-deals.pro/i/ytz4LZ2xGmlvCtC8NnS_XFSnsrjcFpCLCBKjeWKYRIbyHQtludwBcBnHtKbE6u3NkdKhbP_liIG2nQsaZ0lEZuiGXS1jWbG00nlDu-ctU4kkObZr6OJce3rq.jpg)

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 3](https://best-deals.pro/i/PPQ3GntmyJeYDMNwmtLSdW8QfeSMx4NeLKjGfs39dLDxEry3CeLgANLwHfFAeH4OALNT0dBKjlNq7f6YZKxKJMYxV1kgre-ngu1_iIfvLyhS0FOnmUuYqyBJ.jpg)

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 4](https://best-deals.pro/i/NWcQagONWF1Xri-BIbebNhAg6V5grLb3VqBkLk7tTjSQsllZt_x9vEVWBAx3tkHkIFFuzfVYt1pHKoap-ZMX0YeU3kkFMnFF-HCAS2cpbMClaeND6-zo1CD0.jpg)

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 5](https://best-deals.pro/i/CDcQ21jNwHxqwXR2DpENXw9kz-mFr7Ju5REQrbwix4zfhUAXbGlmxbRdJnzwHNFDKUoTDDTy5Fqa8BLRKXkxJpWQXaL9_o7ZuhhRrUB5XL5QB4TxPhRirhKo.jpg)

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 6](https://best-deals.pro/i/kJjby2LUMiQ8d0XqnLwF615wnJVQ1SXuqhLnUYua_r6fZNAOSHhVxIhQHKLwBDCawUgdMZcsCVhWc-eNRbW8Od14FhWe_INKKN1JtMZdqSWFzVqzcjvRmkTv.jpg)

![AutrefoisElf Smart Ring Gen 4 Fitness Tracker — 7](https://best-deals.pro/i/x1NSPyDAETWyXpUJmDDPy_tbKQ8VeyTIcGm4A1Je5is1vL1ouQIsEF1NW27-jLTznmbXlGuanEN263_89REOVO1tquCpwM-ZavniA5MwudV8_w8NXpBy98nA.jpg)