HART X2 Smart Ring, Fitness, Sleep & Health Tracker, Sterling Gold, 8 | Buy Sizing Kit First. 8+ days of Battery life. Track sleep, heart rate, HRV, stress, blood oxygen, steps and calories.

Accurate tracking and fits perfect on my hand. Im impressed the quality and accuracy it provides. Definitely worth the price.

I have been using the HART ring for few weeks now and I’m honestly loving it. It’s super stylish and doesn’t even feel like a fitness tracker. The accuracy of the sleep with a detailed anlysis and heart rate tracking is impressive, and it really keeps me motivated to stay consistent with my goals. Battery life is solid too. Overall, a great investment for anyone serious about their health.

I was really looking for a comfortable alternative for my smartwatch because I have noticed the data is not accurate. That's when I checked it am impressed with this ring and it's quality man. The battery also lasts really long. It looks cool as well people have asked what r u wearing what is it. It's a high when I get to explain what it isss. I love this man.

I didn't do much research and purchased without much thought given this is from Fittr and thinking the quality should be good. The ring just doesn't work. I purchased it like 1.5 months back and since then I have used it very sparingly but whenever I have, it just doesn't seem to work. As an example, the app keeps on showing loading data / connecting to the ring. After charging to 100% (which heats it up significantly and also takes time of couple of hours for such a tiny device), it gets discharged super quickly (or maybe it's an app issue which doesn't seem to recognize it after a couple of hours of usage). Other example where I worn it yesterday during a run and for the rest of the day, it firstly took some time to connect, then it just kept loading data, then for the whole day it didn't show the readings of RHR, HRV and others but when I click on the individual item, it shows like 20 minutes of data where it should have for like 8-9 hours. About the build, it's too bulky, doesn't fit very well (I can only wear it in my left hand ring finger, I think this one is my fault and I probably had to do better in terms of requesting the right size). I also happened to talk to someone from their sales team after I got the ring where I mentioned the issue with the ring and they said that someone will reach out but nobody did. I also reached out to that person again but didn't hear back. Overall, it was a very poor purchase in all aspects and Fittr has done a pathetic job.

Good product. It does everything that a high end watch does with better accuracy. Sizing kit is nit best utilization of money and resources, as it is of no use after size measurements but you have to buy it seperately when buying from Amazon. FITTR website offers it free with product. Something recycleable or other measuring technique should be considered. Quality : Good Sync: Takes some time to connect to bluetooth everytime and sync data. But gives a lot of insights like VO2max, biological age, recovery etc. Comfortable to wear. Battery lasts 8-10 days, depending on recommended charging method. Advantage above the watch is Accuracy & Compact size and if you dont like wrist occupied with watch always, good for you. Customer Support reachable via Emails.

Battery life is better than any other products Ive used. I had used a smart ring before but this is actually very good. Tracking accuracy is so much better. Im happy with my purchase.

I’ve bought this for the first time and i was skeptic before buying it but it actually does work great. I’m so impressed with the quality and performance it showed me. Going to wear it now all the time.

With all the heart issues you keep hearing these days, I was honestly getting worried. I’m not old, but stress, bad sleep and long hours are a part of my life now. I got the Hart Ring to just keep an eye on things. It tracks my resting heart rate and HRV so I can see how my body’s actually doing, not just guess. When numbers go off, I know I need to slow down or fix my routine. I’ve been following Fittr for years and always liked how they focus on lifestyle, not shortcuts. So getting the Hart Ring made sense. Feels good to finally do something proactive for my health instead of waiting for a problem to show up.