Description
Price: $49.99 - $6.99
(as of Nov 28, 2025 22:26:28 UTC – Details)
Product description
1 How to choose size? 2 How to connected?
【Choose Your Smart Ring Size First】To ensure the most precise and comfortable fit, please measure the circumference of your finger and refer to our size chart before purchasing the health ring. This will improve your shopping experience and prevent unnecessary returns and exchanges
【Upgrade Chip & NO APP Fees 】This fitness ring is equipped with the most advanced chip and optical sensor, enabling accurate monitoring of various health data (HRV data in particular) to help you better understand your physical condition. Plus, the app for this health tracker ring is totally free, easy to use, and portable
【Health Monitoring】The smart ring health tracker combines health monitoring, fitness tracking, and sleep analysis. It tracks heart rate, blood oxygen, stress levels, HRV, sleep data, step count, distance, calories, and more. This lightweight fitness ring tracker gives all-day real-time data to help you reach your health goals
【180+ Activity & Fitness Trackers Modes】Our health tracker supports both outdoor and indoor activities, including running, cycling, swimming, hiking, dancing, pilates, yoga, etc. It records distance, calories burned, and duration of each activity. This exercise ring will also help you maintain an active and healthy lifestyle
【Intelligent Sleep Tracker ring】This smart ring for men and women monitors your deep sleep, light sleep, stages of rapid eye movement , and wakeful periods throughout the night. As a sleep ring，it keeps track of your sleep patterns——helping you adjust your habits and improve sleep quality
【Extended Battery Life & IP68 Waterproof 】High-quality vital health ring with long battery life—over 4 days on a full charge. IP68 waterproof, wear it swimming, diving, exercising or showering.Better yet, the charging case lets you recharge the ring health tracker multiple times, eliminating battery anxiety even during long trips
【 Family Care & Remote Photography】Connect to loved ones’ health data via the app to keep track of family or friends’ well-being (you can choose whether to share specific data with them). Plus, this smart fitness and health tracking ring features remote camera control—shake it twice to take photos easily and conveniently
Lucy –
My husband really likes it
I got this ring for my husband (size 11) and heâs been enjoying it. Itâs comfortable, looks good, and the tracking features work well for his daily routine. The app is easy to use and everything has worked smoothly so far.
rachel –
Make sure you measure for your size finger
Size didnt fit that I ordered unfortunately. I don’t know if it worked properly because I didn’t turn it on. No defects but I feel thoes armt standard size ring sizes
Elizabeth Rosario –
Love this!
Love this! Tracking so many things heart rate, oxygen, even exercising! And for women that time of the month! So impressed with this!
Adrenolin –
Standard sizing rings can be used to measure any finger for any ring
First of all.. itâs a terrible titled product. These have absolutely nothing to do with any smart-ring or fitness program or apparatus at all. The products title itself will cause a loss of sales. Rename it simply âGiwneiv Sizing Ring Kit for Smart-Ringsâ and then place all the rest of that useless title afterwards though Iâm still at a loss for it all. Additionally, placed in the wrong Amazon category as well. Again, nothing to do with what they are. I understand the seller sells smart-rings but bad titled products and miss placed categories simply mess up so many things from searches to even understanding what something is quickly. I wish Amazon would clean up their catalog categories and force sellers to place products where they belong. Yes, IâmAs for the Sizing Rings themselves⦠overall they are nice set. They are made from a durable and smooth rigid plastic that has just enough give to be slightly squeezable. Coupled with their rounded edges this makes them quite comfortable to wear for sizing. One should really wear a sizing ring for a full 4 hours or more through their normal daily routine to ensure a good proper fit. These are very nice for doing just that. The slight flex they have assists in removal if you side one in thatâs a bit small and your finger swells up throughout the day.The sizes are all within proper dimensions of any jewelers sizing rings so.. true to size. That said, I wish it went down to a size 4 to include smaller fingers. This worked well for myself and our 15yo son however even the smallest sizing ring (size 6) slid off my wifeâs finger as she has narrow fingers. This set doesnât work for her.It would have been nice to see a stamped size on each ring as well though not a huge deal.Packaging is nice.. a simple plain white box with an insert where each sizing ring fits. Again.. even in the box it mentioned Smart Ring so just adds to confusion for some. The Sizing Rings fit almost too well in the inner insert. Making them tight to remove since the top exposed edge of the ring sites flush with the insert. This makes it somewhat difficult to remove a single Sizing Ring as you wind up pulling the insert up as well. Some remain snuggly in the insert while other drop out the bottom. Not a big deal but having the insert lowered 2mm would allow the user to grab a Sizing Ring and remove it while holding the insert down. It would have just been a bit neater. Basically, each time you pull one out expect to spend a few seconds rearranging the insert and all other rings to put things back together.These do not track your activity or fitness in any way.Iâve worn the size 10 now for 2 days while my son wore the size 8 for the same period without removal. Weâve ridden motorcycles through double and singletrack trails, lifted weights at the gym, trained through karate, Brazilian Jujitsu and Hapkido classes, school studies, wrenching on a classic car, showers, kitchen work and repeatedly washing hands, etc etc.. basically normal daily routine. Absolutely no issues at all and the rings appear to be in perfect condition.Yes, Iâd recommend this set of Sizing Rings for a person or family who know they are a size 6 or larger. They are useless for many women of teens with narrow fingers however.Overall itâs a decent set of plastic Sizing Rings by Giwbeiv. Few negatives and they are small but added up in removing one star and giving it a 4/5 review.
B. Clark –
Good sizing kit with range of ring sizes. Plastic rings, no markings on the rings themselves.
If you want a smart ring it’s a good idea to know what ring size you need before placing an order. This ring sizing kit for smart rings has a good selection of ring sizes to find the right size.There are 9 sizes included, from size 6 through 14. The rings are unmarked and feel like plastic. There are no sharp edges and the edges are rounded, making them comfortable to wear for an extended time so that you can really test the ring size before committing to ordering a smart ring.As there’s no markings on the rings themselves you have to know which size is which. The included box has labeled holes for the rings and they fit snut within those holes. The part of the box holding the rings feels like a dense foam.For the sizing, these appear to be standard ring sizing. All of the rings are 7mm wide and I measured the inner diameter is as follows:Size 6: 16.50mmSize 7: 17.22mmSize 8: 17.99mmSize 9: 18.75mmSize 10: 19.73mmSize 11: 20.44mmSize 12: 21.31mmSize 13: 21.85mmSize 14: 22.87mm
Feiyatour –
helpful but not the easiest
The sizer kit gave me a general idea of what size I should choose, but the process wasnât super smooth. I liked that it had a range of sizes, but sliding them on and off so many times made it tricky to tell which was truly comfortable. Some sizes felt fine until I wore them a bit longer, and then they started to pinch.The kit itself was simple enough, but I wish it guided the decision a bit more. It felt like I was just guessing based on how I felt at the moment. It helped me narrow things down, but it didnât make the final choice as clear as I hoped.In the end, I chose a size that felt okay most of the time, but I wasnât completely confident. The kit was useful, just not quite as straightforward as I thought it would be.
PM Gin –
Nice wide ring sizer
Smart rings are very popular now, but the sizing can be challenging because string and most ring sizers are narrow bands, which donât accurately size for the wide smart ring bands.Pros: This feels like a plastic material-sturdy and not rubbery, so it seems like it will be accurate.The box is sturdy, so it will be easy to keep, in case multiple persons in your household might want to get a smart ring in the future.Cons: in whole sizes only. If youâre between 2 sizes, you canât accurately estimate if an half size or a 3/4 size would be your best fit, also, the individual ring sizers are not marked in any way. If they get separated from the box, you have no way to tell what size of sizer fits youRecommend
Ava –
Smart Ring Sizer
Exactly as described. Nice kit for helping narrow down size of smart ring, especially when you may be different sizes on different fingers. Better than measuring and ordering, because that doesn’t work out! The set is made of smooth plastic and ranges from size 6 to size 14. Can wear all day and see how it feels or get an idea of which finger the smart ring would look best on. Open carefully because the rings aren’t labelled and can fall out of their designated spaces. They can be difficult to realign again.