Osawalla Signature Pro Smart Ring
Full health suite in a brushed titanium body — our most advanced ring with the complete sensor array.
4.9112 reviews $49.99Color
Size
US sizes 6–13. Between sizes? We recommend sizing up.
Free sizing kit included ($0.00) — added to your order automatically. Try the sizes at home, confirm your size, then your ring ships. Your total stays $49.99.
Free standard shipping on all orders . 30-day returns on unused items.
- ✓24/7 heart rate, SpO₂ and HRV monitoring
- ✓Automatic sleep staging with morning readiness
- ✓Up to 7 days battery, 3–5 g titanium body
- ✓No subscription — ever
Why the Signature Pro
One ring, the whole picture
Sleep, staged
Light, deep and REM sleep are staged automatically from your optical and temperature signals. Wake to a sleep score and a readiness view — no button to press, nothing to charge midweek.
The complete sensor array
Three optical and two temperature sensors sit flush beneath the polished outer shell, sampling continuously while you wear it. There is no screen and nothing on the inside to catch on your skin.
Seven days per charge
Our titanium smart ring is engineered for low power consumption. A quick recharge fuels up to seven days of continuous health tracking. The compact charging case provides emergency top-ups when you travel or commute, so you never miss your sleep, heart rate and activity data.
Compare
Which ring is right for you?
| ⭐ Signature | Slim | Ceramic | |
|---|---|---|---|
| Material | Brushed Titanium / Polished Titanium | Polished Titanium | Ceramic |
| Width | 8 mm | 6.5 mm | 8 mm |
| Weight | 3–5 g | 2.5–4 g | 3–5 g |
| Battery | 5-7 days | 5-7 days | 5-7 days |
| Sizes | US 6–13 | US 6–13 | US 6–13 |
| Water resistance | 5ATM / IP68 | 5ATM / IP68 | 5ATM / IP68 |
| Health & sleep tracking | Heart Rate, HRV, SpO₂, Stress, Sleep, Meditation & Activity | Heart Rate, HRV, SpO₂, Stress, Sleep & Activity | Heart rate, HRV, SpO₂, stress, sleep, AI and activity |
| Sports modes | 128+ sports modes + 5 connected GPS modes | 128+ sports modes + 5 connected GPS modes | 128+ sports modes + 5 connected GPS modes |
| Best For | Everyday wear and all-around wellness tracking | Those who prefer a slim, lightweight design | Those who love elegant ceramic finishes and a premium look |
| Style Positioning | Versatile and timeless | Minimalist, slim and lightweight | Elegant, premium, gift-ready |
| Subscription | No monthly subscription | No monthly subscription | No monthly subscription |
| Price | $49.99 | $49.99 | $49.99 |
In the box
Inside the box
- ✓Signature Pro ring
- ✓Wireless charging case
- ✓USB-C cable
- ✓Quick start guide
- ✓Smart Ring Protector x3
- ✓Customer Service Card
- ✓Smart Ring Box
Shipping, Warranty & Returns
Buy with confidence
Free standard shipping on all items. Shipped from our US warehouse, dispatched within 1–2 business days.
Every Osawalla product is covered for 12 months against manufacturing defects, handled through our support center.
Unused items in resalable condition can be returned within 30 days of delivery for a full refund.
Specifications
Osawalla Signature Pro — full specification
| Materials | Aerospace-grade brushed titanium, scratch-resistant coating |
|---|---|
| Band width | 8 mm |
| Weight | 3–5 g depending on size |
| Battery | Up to 7 days typical use |
| Subscription | None. All metrics and history included. |
| Water resistance | IP68 / 5ATM water‑resistance rating. Safe for swimming, showering, splashes, rain and hand‑washing. Do not use for diving. |
| Sensors | 3× optical (HR, SpO₂, HRV) + 2× temperature |
| Compatibility | iOS 12+ / Android 8.0+, Bluetooth 5.0 |
| Sizes | US 6–13 |
| In the box | Ring, charging case, USB-C cable, quick start guide |
Reviews
What buyers say
Super easy to use and fits true to size! Definitely happy with my purchase and might get another color! Shipping took a little longer than I expected, though.
I love this ring! Many people have asked me about it and I share the link every time. The app is fine, but I mainly use the Apple Health app and have all the data uploaded there. The charge last as advertised and the portable charger is so convenient! Also the little guards that the ring comes with are very helpful for those of us who work with our hands.
Super excited about trying this ring out! I measured my finger but I ended up getting a size that was still too big. The advice about getting your shoe size wasn’t very helpful, lol. I encourage everyone to choose their true ring size. I’m gonna size down and see what happens, but I’m still excited about the item!
This is amazing I love how it does everything a known 400$ ring does for this amazing price and no subscription needed !
Soso easy!! Battery Life: Up to 10ish days
It was really easy to link to my phone, when it arrived it was charged so I was able to start using it. Love it the size is accurate. Best thing is I don’t have to pay a subscription!!!!
It's very easy to understand instructions and to set up the ap.
Excelente! Vendedor amable, responden rápido. Realmente encantada
It tracks all the things accurately! It’s water proof too!
Really like this ring and the fact that I can see my stress levels and my sleep patterns as well as many other things also enjoy the fact that it is water proof I have got my ring wet many times forgetting that I have it on and it still works great. Hold great battery life and love the protection covers that came with it HIGHLY RECOMMEND
Super easy to set up. The ring looks beautiful and tracks data pretty accurately.
i love this ring!!! its very accurate (everytime i go into work my stress spikes) and its true to size! EVERYTHING in the app is free, no subscription at all for any of it. the app is also free. i charger it when i got it, like a week ago, and its still at 70 percent. i charge it when i shower and it charges in like 10 minutes before i even get out. i also love the sleep tracking part its my favorite, helps me see what i need to work on and whens the best time for me to sleep. i forgot to wear it last night so it didnt track but other nights were very accurate. absolutely no bumps on the inside of the ring and WATERPROOF!! i do dishes all day with it on and it never messes anything up. GREAT RING!!!
Love this great charger love the protection rings they come with does need black color. Quick to download app and connect through Bluetooth
Love love love this. Fits amazing on my first finger. And I love that it tracks so many things. I wore it for 6 days before it ever needed a charge and it could’ve went another day or two but I charged it early. Ease of Use: 10/10 Battery Life: AMAZING
Result from this ring are very accurate, they are also true to size, and there is no subscription needed
It is very Nice ring I really like it
It’s so simple!!! I love it!!
I’m on day 4 wearing this ring and I love it! First you cannot beat the price! I have still yet to charge this ring so the battery life is great. I love that it is accurate with tracking your steps, sleep, workouts, HR and more! I am VERY pleased with this product. I would definitely recommend it!
The best ring I have bought so far ! True to size and no charge for the app love it !!
My older sister's birthday is coming up soon. I think this is a great gift. It will help her stay on top of her health and know what she needs to improve.
i loveeeee!!!! i got one for me and my boyfriend and definitely true to size!! i rarely wear rings especially chunkier ones and i love the fit and it doesn’t feel like i have a huge ring on at all!
Very easy to install the app and connect device to phone. Love that it came with two chargers and three silicone ring covers.
FAQ
Frequently asked questions
When the device is successfully connected to the app, you can check the device battery level in your profile
1. Turn on your phone's Bluetooth, go to the app's homepage or your profile, tap "Add Device," then tap "Scanned Devices." After successful connection, data will sync to the app.
2. Devices charging will be displayed first. If you have multiple devices, this makes it easier to find them while they are charging.
1. Ensure the device and phone are connected. Data will sync periodically.
2. You can also manually pull down the screen on the app's homepage to actively sync device data to the app.
3. If the above steps do not resolve the issue, we recommend restarting Bluetooth and reopening the app to reconnect.
When the device is successfully connected to the app, tap "Remove Device" in your profile to unpair it.
1. Check if the device has power. Plug the device into a charger or a computer's USB port to ensure it has power.
2. Check if other phones nearby have connected to the device. Unpair the device on another phone and then pair it with your current phone.
3. Try restarting Bluetooth. If the device has power and the phone still cannot find it, try restarting your phone's Bluetooth.
4. Ensure Bluetooth and location services are enabled and keep the device close to your phone.
Excessive body activity during sleep / poor sleep quality may cause the device to detect a non-sleep state.
1. The device records sleep based on activity level and wear detection. When a person sleeps, they are generally in a static state. When they turn over or move their hands, the device's sensors record changes in activity, constantly tracking changes caused by body movement and determining whether the person is asleep.
2. To accurately and effectively monitor sleep, we have set unique monitoring conditions. Only data that truly meets the conditions will be recorded as valid sleep data.
1. During deep sleep, muscles relax, cerebral cortex cells are fully rested, and limbs do not move significantly. During light sleep, body activity is more frequent.
2. The device works by monitoring hand movements, gradually transitioning from light movement to stillness throughout the night to determine sleep state. It calculates the duration of deep and light sleep based on each person's sleep cycle.
The device has an IP68 waterproof rating. Splashes and water in daily life will not affect the use of the ring. It can be worn while showering or swimming. After getting wet, please dry the device promptly for better maintenance.
1. Choose the finger you usually wear the device on. The sensor inside the device should be firmly against the fingertip. When testing, rotate the device; the skin of your finger should rotate slightly with the rotation of the device.
2. Avoid wearing the device too loosely or having the sensor pressed against the back of the finger during measurement.
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Health disclaimer
OSAWALLA devices are wellness products. They are not medical devices and are not intended to diagnose, treat, cure or prevent any disease. Heart rate, blood oxygen, HRV and sleep values are estimates for personal trend tracking only. Do not use them to make medical decisions. If you have a health concern, speak to a clinician.
Setup, pairing, charging and troubleshooting walkthroughs live in the support center.
Ring Size Guide
Osawalla ring sizes follow US ring sizing. To find your correct size, use our free sizing kit by following the steps below:
Select “I don’t know my size” and a free sizing kit is added at $0.00 — we send it before your smart ring ships.
Your sizing kit will arrive in 3–8 days (varies by location).
Choose your preferred finger for sizing. For optimal comfort and accuracy, we recommend the index, middle, or ring finger.
Go to “My Orders” to submit your size. If you don’t have an Osawalla account, sign up with the email you used to place your order.
For additional tips on finding your perfect ring size, check out our Size Guide.