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The KUMI Ring H1’s $149.99 coupon was a real but time-limited AliExpress promotion advertised for August 10–31, 2024. It is not a current deal: as of August 18, 2026, KUMI’s official store lists the ring for $169.99, reduced from $199.99. The old code, F19U4C95A985, has not been verified on the current store, so don’t count on it at checkout. The original promotion documents the coupon and dates; KUMI’s current product listing shows today’s price and availability.
What the KUMI Ring H1 offers
The Ring H1 is a screen-free wearable that pairs with a smartphone and KUMI’s companion app. KUMI advertises wellness and activity tracking, touch-based controls, LED reminders, and an SOS feature. Those are product claims, not evidence that the ring provides clinically validated measurements or independently contacts emergency services.
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COLMI Smart Ring for Women, AI Health Tracker & 5ATM, R02. (Gold, 8#) | $55.98 | Buy on Amazon |
Advertised features
- Health and wellness: Product materials identify heart rate, blood oxygen, heart-rate variability, body temperature, sleep, menstrual-cycle tracking, and recovery analysis. The current KUMI listing describes multiple health tests and an AI health algorithm, but does not give accuracy figures or establish clinical validation.
- Activity: Steps, distance, calories, and sports activity are among the advertised tracking functions.
- Remote controls: Promotional material describes touch or gesture controls for music, short-video apps, e-books, remote photography and video, slideshows, and other connected-device actions. What works may depend on the app, phone, permissions, Bluetooth connection, and specific third-party app.
- Reminders: The product is advertised with LED reminders.
- Emergency help: The ring advertises an SOS function, but its precise operation and activation gesture are not consistently documented.
Treat health readings as wellness information, not a diagnosis or substitute for a medical device. Fit, skin contact, movement, cold fingers, swelling, sweat, and sensor placement can affect readings. The reviewed product materials do not provide an independent accuracy study.
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What the SOS feature can—and cannot—be assumed to do
Available descriptions suggest the ring’s SOS feature uses a paired phone and may send an alert, location, or contact a configured emergency contact. The activation instructions conflict: one product description says five clicks, while promotional material says ten taps. The current official listing does not resolve that difference.
#1 Best Overall
- [No App Subscription Fee Required] Say goodbye to monthly bills! The COLMI smart ring requires no app subscription fee. Enjoy all features right out of the box, instantly unlocking core data such as heart rate monitoring, sleep analysis, and 24/7 activity tracking, making health management pure and simple.
- [Purchase a Sizing Kit] Before purchasing the COLMI R02 smart ring, we strongly recommend that you purchase the COLMI sizing kit or measure your finger size according to the size chart to help you choose the correct ring size for a comfortable fit and to avoid unnecessary returns or exchanges.
- [Nighttime Sleep Insights] Tracks continuous night rest for holistic wellness trends. Note: Algorithm is strictly calibrated for nighttime cycles to ensure data purity.
- [Heart Rate Measurement] 24/7 smart heart rate measurement allows you to understand your heart rate status and monitor heart rate abnormalities, keeping track of your daily health.
- [Skin temperature] Supports skin temperature measurement, and allows you to set a timer for measurement to monitor your skin temperature at all times.
Do not assume the ring is an autonomous emergency beacon, automatically dispatches emergency services, or works without the phone. Before relying on it, confirm in the current app what action the SOS setting performs, configure contacts and location sharing, and test the workflow safely. It may fail if the phone is away, Bluetooth is disconnected, the phone is out of battery or network coverage, contacts are not configured, or required app permissions and background access are disabled. Accidental activation is also possible.
Ring H1 specifications and water resistance
| Item | What product materials say |
|---|---|
| Materials | Microcrystalline zirconium ceramic or nano-ceramic exterior and antibacterial stainless-steel interior, according to product descriptions. |
| Size and weight | Approximately 8.5 mm wide, 2.5–2.6 mm thick, and 5.6 g, according to product material. |
| Bluetooth | BLE 5.0, according to a product-description document. |
| Storage | 4 MB, according to a product-description document. |
| Battery and charging | Battery estimates vary across materials: approximately 3–5, 4–6, or 5–7 days. Charging is listed at approximately 1.5 hours. These are estimates, not guaranteed runtimes; KUMI says performance varies with use, settings, and operating conditions. |
| Sizes | KUMI’s current listing shows sizes 8, 9, 10, 11, 12, and 13. Confirm the seller’s size chart rather than assuming a particular country’s ring-size equivalence. |
| Water resistance | Marketed as 5ATM. KUMI cautions that its water-resistance language does not mean the ring is suitable for prolonged immersion or diving. |
A 5ATM label is a water-resistance rating, not a promise of unlimited waterproofing. Wear, impact, chemicals, or seal damage can affect resistance. Follow KUMI’s care instructions and don’t infer diving suitability from older promotional wording. A product description discusses swimming and everyday water exposure, but the official listing’s cautions should take precedence.
The product-description document containing several specifications is available here. A separate catalog warns that its specifications are reference information and advises confirming configuration with the seller.
App compatibility and setup considerations
A product-description document lists compatibility with Android 5.0 or later and iOS 9 or later. The current KUMI product page does not prominently repeat those requirements, and those older minimum-version claims do not establish support for every current phone or app release. Before ordering, check that the current “KUMI Ring” app is available for your phone and review its permissions and terms.
Pairing, health-data syncing, and SOS appear to rely on the companion phone. App permissions, background restrictions, account requirements, operating-system differences, and updates can affect how the ring behaves. The reviewed sources do not disclose a separate Ring H1 subscription; confirm current app terms before purchase.
Sizing and purchase checks
Fit matters for comfort, retention, and sensor contact. Fingers can change size with temperature, activity, and time of day. A ring that is too tight can be uncomfortable; one that is too loose may rotate, deliver inconsistent contact, or fall off. Use KUMI’s sizing instructions or request a sizing guide, and verify the seller’s exchange and return rules before choosing.
- Confirm the exact size chart, available size and color, and whether your selection can be returned or exchanged.
- Check the seller identity, shipping destination, delivery terms, taxes or import charges, warranty coverage, and return window. Marketplace offers may come from third-party sellers.
- Confirm the final checkout price; the 2024 AliExpress coupon is not verified as active.
- Ask what is in the box. The current store lists the ring, magnetic charger, and brochure/manual, but also displays inconsistent generic references to a strap and smartwatch. Do not assume those items are included.
- After delivery, check app pairing, sensor sync, charging, and the SOS setup. Test emergency controls without sending an unintended alert.
Is the KUMI Ring H1 worth considering at $169.99?
At the official-store price checked August 18, 2026, the Ring H1 may suit someone who wants a discreet ring form factor, basic wellness and activity tracking, and advertised touch controls without a smartwatch display. KUMI’s store marked it in stock at that time, but availability and checkout terms can change. See the official Ring H1 listing for the current price and purchase details.
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It is a poor fit if you need clinically validated readings, advanced sleep analysis, a well-documented emergency workflow that works independently of a phone, or clearly established long-term app support. If sizing, compatibility, or return terms cannot be confirmed, those uncertainties are a good reason to wait.
For alternatives, compare by the job you need done rather than assuming equivalent features. Oura is a premium wellness-ring ecosystem with subscription considerations; Samsung Galaxy Ring may be more appealing within the Samsung ecosystem; RingConn is another smart-ring category to assess for current model, app, and ownership terms. These are not tested comparisons, and current competitor pricing and features should be checked directly. A smartwatch is generally the more relevant category if you need a visible screen, GPS, calls, or emergency functions that can be confirmed on the device or phone.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
