UniJethro Smart Ring Health Tracker (Blue, Size 7) — Heart Rate, SpO2 & Sleep Monitoring, IP68 Waterproof

UniJethro Smart Ring is a compact, waterproof wearable that monitors heart rate, blood oxygen, blood pressure, and sleep while tracking steps and activity for iPhone and Android—no app subscription required.

This smart ring combines medical-style sensors with a minimalist resin and stainless-steel design to deliver continuous health and fitness insights in a discreet form factor. It pairs with your phone to show real-time readings, stores multi-day data, and offers extra features like remote camera control and shareable health summaries. Built to be worn all day and protected to IP68 standards, it fits both casual users and people who want passive, always-on tracking without bulky wristwear.

How accurate are the UniJethro ring’s health readings?

The ring uses optical sensors and an accelerometer to estimate heart rate, blood oxygen (SpO2), and blood pressure trends, plus sleep stages. While useful for spotting patterns and supporting lifestyle choices, it’s not a medical device and shouldn't replace professional diagnostics.

• Optical sensors record continuous heart-rate trends during day and night.
• SpO2 monitoring provides periodic blood-oxygen estimates for trend tracking.
• Blood-pressure readings are algorithm-based estimates for general awareness.
• Sleep analysis combines motion and heart-rate data to outline sleep stages.

How long does the battery last and how durable is the ring?

The UniJethro ring typically runs 3–5 days with regular use and can last up to 7–10 days in standby mode. Its IP68 rating means it tolerates handwashing and accidental immersion, while resin plus stainless-steel construction balances lightweight comfort with everyday durability.

• 3–5 days typical battery life on active use; longer in standby.
• Dedicated charging cable included for fast top-ups.
• IP68 protection against dust and short water immersion.
• Resin and stainless-steel case for comfortable all-day wear.

What activity and lifestyle features does the ring offer?

Beyond biometric monitoring, the ring tracks steps, calories, and distance using a built-in accelerometer, and recognizes common activities like running, cycling, and yoga. It also supports remote photo control and a friend-sharing mode so you can exchange health summaries with contacts.

• Step counting, calorie estimation, and distance tracking with SC7A20H accelerometer.
• Activity recognition for running, cycling, yoga, and general movement.
• Remote camera shutter for hands-free photos from your phone.
• Health-data sharing mode to compare or share summaries with others.

Which phones and sizes are compatible, and what’s included in the box?

The ring works with both iPhone and Android devices via the companion app without any subscription fees. It ships with everything needed to start: the smart ring, a dedicated charger, a quick-start guide, and a silicone protector to customize the fit.

• Compatible with iPhone and Android—no ongoing app fee.
• Included: smart ring, charging cable, quick-start guide, silicone protector.
• Multiple ring sizes available; this listing is Blue, size 7.
• Two-year warranty and customer support from UniJethro.

Who is this for? The UniJethro Smart Ring suits anyone who wants a low-profile, wearable sensor to monitor daily health trends and activity without a subscription. It’s a good fit for commuters, fitness-aware users who prefer minimal gear, couples or friends who want shared data, and anyone seeking a stylish, water-resistant tracker that blends with everyday life. If you need clinical-grade measurements for medical decisions, consult a healthcare professional—this ring is intended for wellness tracking and lifestyle insights.