RingConn Gen 2 Air Smart Ring
- 10 day battery, 22 mAh
- Titanium ring, 2.5 grams
- Water resistant to 100 meters
- Heart rate, sleep, stress and blood oxygen tracking
- No GPS, no display, Bluetooth to phone
- iOS and Android, no app fee for standard features
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An ultra-thin titanium smart ring for sleep, heart rate and stress tracking with a ten day battery. It has no screen or GPS, and this listing is a single size only.
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ASIN: B0DWJTV3J5Model: RCA-02Category: Smart Rings
Colors Available
Sizes Available
Need a different one? Pick on Amazon →
Overview
A wearer who dislikes a watch gets sleep, stress, heart rate and activity tracking in a slim titanium band on one finger. It pairs with a phone app over Bluetooth, and a charging dock with a Type-C cable restores the battery.
Long battery life and a light body make it easy to wear overnight, and the water rating allows swimming. It shows nothing on the ring itself, and the listing covers only size nine, so the fit must match before buying.
Who it's for
A sleep-focused wearer, a yoga or running fan, or anyone who prefers a ring to a watch. The unisex band suits adults on iOS or Android. Athletes needing live pace or maps should choose a GPS watch.
Pros and cons
- Slim titanium body
- Long battery life
- Water resistant to a high depth
- Tracks sleep, stress and blood oxygen
- Sold in a single size here
- Storage is small
Performance notes
A ring reads heart rate from the finger, where blood flow is strong, but readings shift with fit, so a snug ring gives steadier values. Sleep stage results come from motion plus heart rate patterns. Without a screen, all insight appears in the phone app after a sync.
Specifications
| Brand | RingConn |
|---|---|
| Model | RCA-02 |
| Dimensions & fit | |
| Item weight | 2.5 g |
| Water Resistance Depth | 100 meters |
| Item Dimensions | 11.3 x 4.3 x 4.7 inches |
| Item Dimensions D X W X H | 0.08"D x 0.08"W x 0.08"H |
| Capacity & performance | |
| Battery Capacity | 22 mAh |
| Memory Storage Capacity | 2 MB |
| Power & efficiency | |
| Battery Average Life | 10 days |
| Battery Cell Type | Lithium Polymer |
| Construction & materials | |
| Case Material Type | Titanium |
| Color | Galaxy Silver |
| Band Material Type | Metal |
| Compatibility & installation | |
| Connectivity Technology | Bluetooth |
| Compatible Phone Models | Android and iOS devices |
| Compatible Devices | Smartphone |
| Human Interface Input | Buttons |
| Warranty & support | |
| Warranty Description | 1 year |
| Supported Application | Fitness Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Warranty Type | Limited |
| Other details | |
| Metrics Measured | Heart rate, sleep duration, stress, blood oxygen |
| Display Type | No display |
| GPS | No GPS |
| Builtin Media | Ring, charging dock, Type-C cable, instruction manual, quick guide |
| Closure Type | Buckle |
| Operating System | RingConn App |
| Shape | Round |
| Sport Type | Multi-Sports, Running, Swimming, Walking, Yoga |
| Style Name | Minimalist |
| Target Audience | Unisex Adults |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Ring |
| Wireless Provider | Unlocked |
Closest rivals on specs
Oura Ring 5 Smart Ring Health Tracker Gold- Item Weight 0.01 vs 0.13 pounds (-92%)
- Battery Average Life 10 vs 6 days (+67%)
- Memory Storage Capacity 0 vs 0.03 GB (-94%)
Oura Ring 5 Smart Ring Health Tracker- Item Weight 0.01 vs 0.13 pounds (-92%)
- Battery Average Life 10 vs 6 days (+67%)
- Battery Capacity 0.02 vs 0.01 amps (+100%)
Frequently asked questions
How do I choose the right size of the RingConn Gen 2 Air?
This listing is size 9. The listing does not describe a sizing kit, so match the size to the finger before buying.
Does it work with an iPhone?
Yes. Compatible phone models list Android and iOS devices.
What is in the box?
The ring, a charging dock, a Type-C cable, an instruction manual and a quick guide.
Do I pay for the app?
The title says no app fee for standard features.