MZJ

MZJ Smart Ring Fitness Tracker for iOS Android Sleep Monitor Heart Rate Blood Oxygen Pressure 8 Sports Modes

4.0(74)

50+ bought in the past month

$5.99

About this item

  • 【Know Your Size Before Purchase】– Our smart ring follows standard U.S. ring sizing. If you already know your U.S. ring size, simply order the same size. Not sure about your size? Measure your finger’s circumference and refer to the U.S. ring size chart to find your perfect fit.
  • 【All-Day Health Tracking】– Monitor your heart rate, blood oxygen, and blood pressure 24/7 with advanced 4.0 sensors for a complete picture of your well-being.
  • 【Sleep Quality Insights】– Automatically records deep/light sleep, REM stages, and wake time.Sync with the app to view detailed sleep reports and optimize rest.
  • 【8 Sports Modes with GPS Sync】– Accurately track running, cycling, yoga, golf, and more.Logs steps, speed, calories burned, and routes for better workout feedback.
  • 【Waterproof & Long Battery Life】– IP68 rated and 80m water-resistant. Lasts up to 3-5 days per charge and over 30 days with charging case. Fully recharges in under 1 hour.
  • 【Remote Camera & Family Share】– Control phone camera with gestures and view loved ones' health data via the app.
  • 【Universal Compatibility & Gift-Ready】– Compatible with iOS 8.0+ and Android 5.1+ devices, this smart ring is a thoughtful and practical gift for men and women – ideal for your partner, parents, friends, or anyone who values health and technology.
$5.99

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Product details

Operating SystemAndroid, IOS
Memory Storage Capacity4 MB
Special FeatureActivity Tracker
Battery Capacity20 Milliamp Hours
Connectivity TechnologyBluetooth
Wireless Communication StandardBluetooth
Battery Cell CompositionLithium Ion
GPSGPS Via Smartphone
ShapeRound
BrandMZJ

Technical specifications

package_dimensions3 x 3 x 1.3 inches
item_weight0.2 Pounds
item_model_numberM-050819-ZH
batteries1 9V batteries required. (included)
best_sellers_rank#230,955 in Electronics ( See Top 100 in Electronics ) #583 in Smart Rings
date_first_availableMay 4, 2025
manufacturerMZJ
memory_storage_capacity4 MB

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Customer reviews

4.074 ratings

Customers say

Customers find the smart ring easy to use and set up, with good functionality that works well with phones and stays charged for at least a week.

★★★★★

Elegant, Accurate & Subscription-Free – A Smart Ring That Redefines Fitness Tracking!

jonSeptember 20, 2025

The Smart Ring Fitness Tracker in Champagne Gold is an incredible blend of style and technology. Unlike bulky watches, this ring is sleek, lightweight, and looks like a piece of jewelry while still delivering powerful tracking features. It’s comfortable enough to wear all day and night, making it easy to collect accurate health and fitness data without interruption. Functionality is where this ring shines. It continuously monitors heart rate, blood oxygen, blood pressure, and sleep quality, giving me a complete picture of my health. The sleep monitor is especially impressive—it tracks deep, light, and REM stages so I can understand and improve my rest. The inclusion of 8 sports modes makes it versatile, whether I’m running, cycling, or just walking. I love that it’s IP68 waterproof, which means I don’t have to take it off when washing hands, working out, or even swimming. The long battery life is another major plus; it easily lasts several days on a single charge, unlike many smartwatches that need daily charging. The Bluetooth app connection is smooth and reliable, syncing quickly with both iOS and Android. The app provides clear charts and insights, helping me stay on top of my health goals. Best of all, there are no subscription fees, so all features are available without hidden costs. Overall, this smart ring is stylish, practical, and packed with features. It’s perfect for anyone who wants a discreet yet powerful way to track health and fitness. A great alternative to watches and bands Read more

★★★★★

I love that it doesn’t require a subscription, and the battery lasts for several days

EdOctober 20, 2025

I received the Smart Ring Fitness Tracker well-packaged and in perfect condition. From the start, you can tell it’s made with high-quality materials, and the Champagne Gold color looks elegant and modern. It works exactly as described — accurately tracking heart rate, blood oxygen, blood pressure, sleep, and steps. Pairing with my iPhone was quick and easy. I love that it doesn’t require a subscription, and the battery lasts for several days. An excellent purchase — highly recommended! Read more

★★★☆☆

Good while it worked.

AprilDecember 9, 2025

Liked the ring and app while it worked. Stopped updating to app about 2 months after getting Read more

★★★★☆

Good alternative to expensive one

Just JAugust 1, 2025

Nice ring for tracking steps at a good price. I found the blood pressure measurement not that precise. Read more

★★★★★

Better than oura - no subscription required!

Secily MollusoJuly 7, 2025

I’m so glad I got this. I was about to buy the Oura ring but couldn’t justify the monthly fee. This one does everything I need — tracks my heart rate, sleep, blood pressure, workouts — and NO subscription. Just a one-time buy and done. The app is super easy to use, battery life is solid, and it charges fast. I’ve even used it to take pics with my phone, which was kinda fun lol. Definitely recommend measuring your finger first though, I almost guessed and that would’ve been dumb. Love this thing. I feel like I’m finally paying attention to my health without paying extra every month Read more

★☆☆☆☆

No comparison to Oura ring! Very inaccurate!

Sonya S.December 31, 2025

Very inaccurate. I owned an Oura before but it stopped charging after 3 years of use. I didn’t want to spend the money and keep the subscription so I tried this one. I wasted my money! It does not do hrv-heart rate variability and the sleep tracking is very inaccurate. I couldn’t trust the bp or anything else after that. Read more

★★★★★

Smart Health Ring – 24/7 Activity, Sleep, and Calorie Tracking

PiliSeptember 18, 2025

The media could not be loaded. I'm very happy with this smart ring. I've wanted it for a long time because I was looking for a practical way to better understand my health and routine. Now I can see my calories, sleep time and quality, and daily activity on the app. It's lightweight, comfortable, and doesn't get in the way when worn all day or even while sleeping. It's definitely a great tool for truly monitoring my well-being. Read more

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★★☆☆☆

Quit working

Scott SchaferOctober 20, 2025

Worked great for awhile... then died about 3 months in Read more

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