xiaobi Smart Ring with Call Clock Events Alerts No APP Subscription Body Temp Heart Rate Womens Health Tracker

I ordered this kit as a sizing kit for an Oura smart ring. This kit does not provide the tracking ring itself. It is a specifically a sizing kit, so you know which ring to order. The quality is actually good in each of the little plastic rings are sturdy and is very easy to use in each one fits in the spot that shows the size. I can easily see that I wear a six on my left hand and a seven on my right hand. The little kit looks great and is very functional too. Read more

pretty nice fit kit, but kinda scratchy. BE AWARE - this is just a kit of plastic rings to find your fit for real smart rings. Read more

I ordered this sizing kit before buying a fitness ring to be sure I picked the right size. It includes nine lightweight plastic rings covering sizes 6 through 14. Each ring is clearly labeled, and the measurements felt consistent with what I’ve used at jewelry counters. The plastic is sturdy, and none of the rings warped or cracked after several uses. Finding the right size was easy. I tried a few options on both hands until I found one that felt snug but not tight, which is important for accurate tracking on smart rings. The kit is compact, easy to store, and works well as a quick reference for other jewelry too. It’s a straightforward, reusable tool that removes the guesswork from online ring sizing. It's definitely practical if you've ever planned or thought about buying a smart ring wearable. Read more

This ring sizing kit does the job nicely. I recently became interested in a smart ring for my daily step count and sleep tracking, in particular. Getting the right fitment is important for something like this, for good comfort and functionality. I like that this set takes the guesswork out of that process. If you want a ring to help you count your steps like I did, it may be worth investing in this kit to make sure you get the right size. No complaints! Read more

The xiaobi Smart Ring Sizing Kit provides a straightforward way to measure ring sizes for men and women, covering US sizes 6–14. Made from lightweight, durable plastic, it is reusable and free from animal-derived materials, making it fully vegan-compliant. The sizing rings are clearly marked, with no unnecessary additives or coatings, and the kit is compact and easy to store. From a safety perspective, there are no health risks associated with using the plastic rings. The kit is transparent in function—there are no proprietary formulations or hidden materials. It offers practical usefulness for anyone purchasing smart rings or other jewelry online, especially as finger size can change with age or swelling. While it is a simple tool with no measurable “performance” beyond sizing, it reliably supports accurate purchases without relying on animal-tested materials or environmentally harmful production methods. We also learned what ring sizes fit but would be difficult to slide off, giving us some very thoughtful moments on how a ring or even an Oura ring might be sized. These lifelong purchases will take some serious sizing efforts. But I will include this ring size information in our biodata (including height and weight and waist and neck sizes). Eco-conscious users will appreciate the reusability and minimalistic packaging. This is a sensible, ethical choice for vegans and non-vegans alike who want to avoid unnecessary waste or exploitation. Overall, the kit is effective, straightforward, and aligns with ethical consumer values. Rating: ★★★★☆ (4/5) Read more

-1 star for a deliberately misleading title. It should just say “ring sizing kit” instead of smart ring with features parentheses sizer only. -1 star on reusability. These are plain, featureless rings with no identifying markings, so you need the box. The box is just card stock and not particularly durable. Some of the rings are hard to dig out, which can damage the unit. Other rings just fall right out, but the box has no lid! You can use the bottom as a lid, but good luck getting it open again. . You could mark the rings on your own, but then you’re reinventing the product with modifications. It does what it’s supposed to do, but it’s annoyingly over-hyped. Read more

I'd been contemplating purchasing a smart ring for a while, but wanted to be very sure of the size I need as my fingers have changed over the years since my last ring purchase. This ring sizing set was exactly what I needed to determine how different sizes fit on the fingers I might wear the actual ring on. I was able to narrow it down to the exact size I need for the finger I ultimately selected and placed an order for a smart ring today. I feel very confident that what I ordered will fit properly and the peace of mind is well worth the price point for this set! If there is one tiny thing I'd suggest, it would be to print the sizes in the centers of the respective cavities in the packaging. This would eliminate any shred of uncertainty as to which number goes with which "ring". (It's pretty easy to tell but there is still a little room for confusion.) Read more

I’ve been wanting a smart ring ever since Fitbit announced they won’t be supporting their bands and app any longer :( SO SAD!!! They were the only ones with dainty fitness trackers. With that being said, it’s an intimidating transition - I also tend to have swollen hands and find myself having to switch my rings around (just my everyday rings I always wear) - so, I really wanted to make sure that 1.) I’d actually find a ring comfortable versus a band, and 2.) That I would choose the correct size. This is a great little kit! I’ve worn the size 7 and 8 off and on and gone to the beach, walked around in the heat, slept…all the things. I’m usually a size 7 and found that I actually need a size 8 if I’m going to wear it on a continual basis. Don’t skip the sizing kit, you may regret it!!! Now to pull the plug on purchasing my new ring! Read more