# FITTR ONE — The Smarter Fitness Solution > Smart ring and app for comprehensive health and fitness tracking with expert advice. (iPhone/iPad app by SQUATS.) - Source: https://appshunter.io/ios/app/fittr-one/id6473716474 (this page in markdown: same URL + `.md`) - Developer: [SQUATS](https://appshunter.io/developer/1281653475) - Category: Health & Fitness - Price: Free - Rating: 3.80/5 from 12 App Store ratings · 66 written reviews indexed - Age rating: 12+ - Requires: iOS 16.2 · 270 MB - Languages: American English - Released: 2024-02-08 - Data updated: 2026-08-31 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/fittr-one/id6473716474/reviews.md ## What is FITTR ONE? Introducing FITTR ONE - a cutting-edge smart ring and app that monitors every vital health parameter and helps you become fitter, healthier and happier. The Hart Ring isn’t just smart and stylish; it’s all you need for tracking every single health parameter. Paired with the app, you get an all-inclusive tool that accurately monitors your key fitness metrics, and gives you timely expert advice on how to improve them. Over time, this means better health and longevity. Powered by FITTR, India’s biggest online fitness community with over 300,000+ success stories and more than 5 million community members globally. **Here’s a glimpse of what FITTR ONE has to offer** Your daily health performance, at a glance Detailed tracking of Steps, Distance, Calories, Sleep, HRV, Skin Temperature, Women’s Health. Includes Quality of Life, Activity, Stress, Heart Rate, SpO2 Health data and reports Expert advice and guidance to help you improve each parameter Sleep Get detailed data like Sleep Duration, Sleep Stages (Awake, REM, Light & Deep Sleep, Naps), Sleep Efficiency, Sleep Latency, Average Heart RAte, Average SpO2, and Average HRV Heart Rate Evaluates your heart health with detailed graphs SpO2 Tracks fluctuations in SpO2 throughout the day and night HRV Tracks variations/fluctuations in your heart rate as you go about your activities Stress Monitors your stress levels and shares tips to reduce stress Skin Temperature Detects changes in skin temperature. Helps you track fluctuations with the help of daily, weekly and monthly reports. Women’s Health (Only visible if gender set as female) Tracks menstrual cycle and helps determine ovulation. For pregnant women, tracks key parameters right up to delivery date. How to correctly wear your FITTR HART Ring For best performance and accurate readings, we recommend wearing your HART Ring on the index finger of your non-dominant hand. Middle and ring fingers work too, if that’s what you prefer. Just make sure that the ring fits securely and comfortably around the base of your finger - not too loose, not too tight. Note: the ring’s sensor should face the palm side of your finger and not the top. How to use the FITTR ONE app After activating the ring, please pair with the FITTR ONE app to start using. Not a medical device This ring is not a medical device and should not be used as a substitute for professional medical judgement. It is not designed or intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of any condition or disease. Please consult your healthcare professional prior to making any decisions related to your health. ## Key features - Vital health parameter monitoring - Detailed fitness metric tracking - Personalized expert advice - Sleep stage analysis - Heart rate and SpO2 tracking - Stress and skin temperature monitoring - Women's health tracking ## What do users think of FITTR ONE? Overall sentiment: mixed **Pros** - ✨ Sleek and comfortable design - 📊 Impressive data tracking capabilities - 💡 Clear and actionable insights - 📱 User-friendly app interface - 🔋 Long battery life - 💯 Accurate health metrics (HR, SpO2, Temp, Sleep) - 🚀 Seamless app syncing - 💪 Lightweight and non-intrusive - 🌟 Good value for money (no subscription) - 👍 Excellent customer support **Cons** - 🐛 Buggy activity tracking - 🐛 Report generation fails - 🐛 Syncing issues - 🐛 App can be slow or stutter - 🐛 Login issues - 🐛 Battery drain after updates - 🐛 Charging problems - 🐛 Inconsistent sleep tracking accuracy - 🐛 App randomly logs out - 🐛 Limited integration with other health platforms - 🐛 Food logging needs improvement - 🐛 Activity tracking not reliable for gym/lifting - 🐛 Replacement rings also have issues **Commonly reported bugs** - Activity report generation fails after workouts - Activity tracking is inaccurate, especially during runs and gym workouts - App has syncing issues, requires ring to be close to phone - App randomly logs out - Charging issues with the ring - Battery life drastically reduced after firmware updates - Sleep tracking not working consistently or accurately - Login issues - Report generation fails for activities like Badminton or Weight training - App shutters and shudders on iPhone 15 **Most requested features** - Improve activity tracking accuracy - Enhance integration with Apple Health - Option to hide or remove unused app sections (e.g., Nutrition) - Allow adding activities after they are completed - Display activities in a list format (e.g., walking - 23 min) - More explanation on stress management - Push notification for low battery (<20%) ## Recent user reviews (10 of 66) All indexed reviews: https://appshunter.io/ios/app/fittr-one/id6473716474/reviews.md ### 5/5 — Great Concept, Poor execution *2026-08-02* I had high expectations from the HART Ring, but unfortunately my experience has been disappointing. From the beginning, I have faced frequent sync issues, charging problems, battery drain, and an unstable app experience. The app often requires me to force close and reopen it just to sync with the ring. That’s not a solution—it should simply work. Battery life has deteriorated significantly. Initially, the ring lasted around 6–8 days, but now I have to charge it almost every day. The charging case is also unreliable, and I often have to place the ring back multiple times and repeatedly open and close the lid before it starts charging. The ring was even replaced once under warranty, but the replacement developed similar issues. I’m still following up with customer support, yet there has been no satisfactory resolution. A health wearable should provide a seamless, reliable experience and peace of mind. Instead, I’ve spent more time troubleshooting than actually using the product. I hope HART improves both the hardware and software experience because, in its current state, I cannot recommend it. ### 5/5 — Consistent performer, Highly recommend *2026-07-15* I’ve been using this ring since March, and it’s been a fantastic experience so far. The heart rate tracking is accurate and consistent, and I haven’t run into a single glitch or issue in the five months I’ve worn it daily. Battery life has held up well, and it’s comfortable enough that I forget I’m wearing it. What I appreciate most is the reliability-no random disconnects, no syncing issues, just consistent performance day after day. It’s become a seamless part of my routine for tracking my health. Highly recommend if you’re looking for a dependable fitness ring that just works. ### 3/5 — After sales service good. Product not satisfactory. *2026-07-10* The 3 star is given for the after sales service. Its been 1 year since is purchased hart ring. And have already had replacements twice within a year due to malfunctioning on ring. And this 3rd ring is also not running properly. Don’t know the ring hardware is not good or the app is not supporting it. But , not satisfied at all. HR data not consistent, hrv data not consistent, sleep data started malfunctioning. Not sleeping reads as sleep. And sleep peacefully reads as awake. Activity reading is also not consistent. And the worst part is no conclusion/solution regarding the problem . But service is always ready to help and solve the problem. So 3 star to Hart ring is only because of that. Product 0 star. ### 5/5 — A complete, data-driven app for fitness and health tracking *2026-06-24* What I like about HART App is that it brings my entire health profile into one ecosystem. It tracks daily metrics like steps, sleep, calories, resting heart rate, and blood pressure, while also combining body composition data and blood work to give a much deeper picture of overall health. It even helps me understand how my body is aging and how my health is progressing over time. Another feature I find very useful is calorie tracking. It makes it easy to monitor how much food I am consuming, how much I am burning, and how my calorie deficit is affecting fat loss. This makes the whole fitness journey much more data-driven instead of relying on guesswork. Rather than checking multiple apps and reports separately, I can see everything in one place and make better decisions based on actual numbers. Overall, it feels like a smart and complete health companion rather than just a basic tracking app. ### 5/5 — Hart_Ring_My_Fitness_Buddy *2026-06-13* I am using Fittr ring since almost a year now. It has immensely helped for my fitness & weight loss goals. It helps me track my calories, TDEE, my sleep & my Bp too (Amazing feature which was recently added). It shows my resting heart rate which has improved a lot since last year(around 50). All this data motivates me to continue & aggravate my fitness journey. This has been the best fitness related purchase for me. It’s much better than any smart watch since you can wear it 24 hrs unlike any smart watch. Kudos to Fittr team & JC. ### 5/5 — Excellent Health Tracking Experience with FITTR Heart Ring *2026-06-11* I’ve been using the FITTR Heart Ring and have had a very positive experience so far. The ring is comfortable to wear throughout the day and night, and its sleek design makes it easy to incorporate into daily life. The health insights, especially sleep, recovery, and activity tracking, are presented in a simple and meaningful way, helping me stay more aware of my overall well-being. I particularly appreciate the convenience of getting important health metrics without having to wear a bulky smartwatch. The battery life has been reliable, and the companion app is easy to navigate. Overall, the FITTR Heart Ring is a thoughtfully designed product that combines comfort, technology, and actionable health insights effectively. I would gladly recommend it to anyone looking for a discreet and practical health-tracking device. ### 5/5 — ⭐️⭐️⭐️⭐️⭐️ Best Smart Ring in India! *2026-06-08* I’ve been using this HART ring for a while and I’m very impressed. 🔋 Amazing Battery Life – Lasts almost a week, much longer than my Apple Watch. 😴 Comfortable for Sleep Tracking – Lightweight and easy to wear all night. 📊 No Subscription Fees – All health data and insights are included at no extra cost unlike Whoop Band. 🎯 Impressive Accuracy – Data is accurate and there are additional metrics compared to my Apple Watch and Whoop Band at roughly 1/3rd of the price. 🤝 Great Customer Support – Had an issue, and the team quickly arranged a replacement. ‼️ Be Mindful - Use ring protectors that comes along with it, pair that with hand gloves while in gym, to avoid scratches. 💡 Suggestion for the team - Metrics and data can be used to nudge users with interactive notifications during workout / right after wakeup / noticeable change in activity, etc. like Apple Health. ### 5/5 — It’s like a daily check-in for my body. *2026-04-17* I bought this mostly for the health insights, and it hasn't disappointed. I love waking up and checking my sleep and recovery scores—it’s become my morning ritual. It’s surprisingly accurate, too; on the days I feel sluggish, the app usually shows exactly why. The best part is that it’s stylish enough to wear to a wedding but durable enough for the gym. If you’re like me and want to understand your body better without a screen constantly buzzing on your wrist, you’ll love this. ### 2/5 — A costly lesson *2026-02-13* I bought the Fittr Hart ring based on the reputation of its founder and the promise of a seamless, screen-free fitness journey. Having replaced my Apple Watch Series 10 with this, I can say with certainty: I deeply regret the decision. The Constant "Syncing" Nightmare The most basic requirement for a smart wearable is that it actually talks to the app. With the Fittr Hart, it’s a daily struggle. • Connectivity: There isn’t a single day where I don’t face syncing issues. • Activity Tracking: It rarely calculates activity accurately (or at all). It feels like I’m wearing a piece of jewelry that occasionally guesses my movement rather than a high-performance fitness tracker. Performance vs. Expectations: Coming from an Apple Watch, the performance gap is massive. The Apple Watch is consistent; the Hart ring is temperamental. While the Blood Pressure (BP) measurement is a nice feature and seemingly the only thing that works, it isn't enough to justify the price or the headache. Verdict: Don't Make the Switch I fell for the face value of the brand, but the technical execution just isn't there. If you are serious about your health and fitness data, stay with a proven smartwatch. I am officially going back to my Apple Watch. This ring has been nothing but a disappointment and a source of constant "syncing regret." Pros: * BP Measurement Cons: * Constant syncing failures • Inaccurate/non-existent activity tracking • Poor app performance • Unreliable as a primary fitness tracker ### 5/5 — Exceptional Health Tracking Experience by Fittr *2025-12-19* I purchased the Hart Ring for both my wife and myself, and it has proven to be one of the best decisions I have made. The insights provided by the ring have driven meaningful lifestyle improvements, including better sleep habits, healthier eating, effective stress tracking and management, and an overall enhancement in quality of life. The food logging feature is a true game changer, allowing approximate calorie tracking simply by taking a picture of the meal. Additionally, the app’s continuous enhancements ensure that users consistently receive accurate and valuable insights. Thank you, Fittr, for developing such an exceptional app. Keep up the excellent work. ## Frequently asked questions about FITTR ONE ### What does the FITTR HART app do? The FITTR HART app works with a smart ring to monitor various vital health parameters. It tracks daily health performance, provides detailed insights into metrics like sleep, heart rate, SpO2, stress, and skin temperature, and offers expert advice to help users improve their health and fitness. ### What are the key features of the FITTR HART system? Key features include comprehensive tracking of steps, distance, calories, sleep duration and stages, HRV, skin temperature, heart rate, SpO2, and stress levels. It also offers specialized tracking for Women's Health, including menstrual cycle and ovulation prediction. ### Is the FITTR HART ring a medical device? No, the FITTR HART ring is not a medical device. It is designed for general health and fitness tracking and should not be used as a substitute for professional medical advice or diagnosis. Always consult a healthcare professional for any health concerns. ### How do I get accurate readings from the FITTR HART Ring? For optimal performance and accurate readings, it is recommended to wear the HART Ring snugly on the index finger of your non-dominant hand. Ensure the ring fits comfortably and the sensor faces the palm side of your finger. After activation, pair the ring with the HART app to begin tracking. ### What kind of health data does the app provide? The app provides detailed data and reports on your daily health performance. This includes sleep duration and stages, heart rate fluctuations, SpO2 levels, HRV variations, stress monitoring, skin temperature changes, and specific metrics for Women's Health. Expert advice is offered to help interpret and improve these parameters. ## Version history (last 5 releases) ### 2.3.0 — 2026-08-23 We keep updating our app to provide you with a seamless experience. This update contains bug fixes. ### 2.2.9 — 2026-08-21 Enroll with a coach for 1:1, face-to-face guidance to understand your metrics and work on them together Chat and call access with your coach is now part of every coaching plan Bug fixes and performance improvements ### 2.2.8 — 2026-07-09 We keep updating our app to provide you with a seamless experience. This update contains bug fixes. ### 2.2.7 — 2026-06-18 We keep updating our app to provide you with a seamless experience. This update contains bug fixes. ### 2.2.6 — 2026-05-18 We keep updating our app to provide you with a seamless experience. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*