Smart rings / Comparison

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Health-tracking smart rings sold new in the US with their included charger. Payment-only rings, NFC rings, fitness bands, smartwatches and measured accuracy, sleep or battery rankings are outside this catalogue.

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Documented specifications and exact purchase packages
Compare the details	RingConn Gen 2 Matte Black, buyer-selected size (US)
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US purchase package	RingConn Gen 2; Matte Black; size 6 to 14 chosen by the buyer with I know my size; not the Free Sizing Kit route; no trade-in Product & sources Royal Gold, Future Silver and Rose Gold are the other finishes. Gen 2 Air and Gen 3 are different models with a charging dock or a universal case. RingConn does not publish a part number on the page read. Price and stock are not recorded. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Where to buy	Select: RingConn Gen 2; Matte Black; size 6 to 14 chosen by the buyer with I know my size; not the Free Sizing Kit route; no trade-in View at RingConn — RingConn Gen 2 Matte Black, buyer-selected size (US); opens in a new tab The link may open several packages. Check current price and availability with the seller. Opens in a new tab.
Sizes and sizing kit The ring sizes the manufacturer lists for the US and how its sizing kit is offered. Smart ring sizes differ from jewelry sizes and between brands and generations. Use the maker's own sizer before choosing a size; the buyer selects the size for every package here.	Sizes 6 to 14. A free sizing kit option ships sizers first; RingConn sizes differ from standard rings and from Gen 3. Sources · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.RingConn: RingConn Gen 3 product page and model comparisonChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Ring weight The published weight of the ring, with the size basis where the manufacturer states it. Weight changes with size. A single figure without a size basis is not comparable with a range.	2 to 3 g, depending on ring size. Sources · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.RingConn: RingConn Gen 3 product page and model comparisonChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Width and thickness The published band width and thickness of the ring. Thickness can vary by size. These are body measurements, not a comfort or fit guarantee.	Width 6.8 mm; thickness 2 mm. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Materials and finishes The shell and inner-surface materials and the finishes listed for the US. Finishes can change the coating and the SKU. Scratch and allergy statements are manufacturer claims.	Titanium alloy with PVD coating and medical-grade epoxy resin; finishes Royal Gold, Future Silver, Matte Black and Rose Gold. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Longest stated ring battery life The upper end of the manufacturer's battery-life claim for the ring on one charge, without a charging case. A maker estimate under its own sizes and settings, not a measured result. Read the conditions field for the size basis and the features that shorten it.	12 daysUp to 12 days for sizes 12 to 14. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Battery claim conditions The size basis, modes and settings behind the battery claim, including any case-assisted figure. Smaller rings usually carry smaller batteries. Days with a charging case include recharges from the case and are not a ring battery figure.	Up to 10 days for sizes 6 to 7, 11 days for sizes 8 to 11 and 12 days for sizes 12 to 14. Enabling the OSA feature may increase power use. The 150 days figure includes charging case recharges. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Charger and charging The charger type supplied, whether it carries its own battery, and the stated charging time. Some chargers are size-specific and some cases are not sold separately. A portable case with a battery is different from a dock that needs a cable.	Size-specific wireless charging case included; magnetic charging, about 90 minutes to full. The case is not sold separately; a replacement charging dock is. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Water rating The water resistance as the manufacturer states it, in ATM, IP or meter terms with any conditions. A 100 m figure is not a diving rating. IP68 conditions are set by the maker. Follow the stated limits for submersion, diving and heat.	IP68 (100 m/328 ft). Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Sensors listed The sensor hardware the manufacturer lists, or the signals it says the ring measures where no hardware is listed. A listed sensor is not a validated measurement. Which metrics appear can depend on the app, a plan or an add-on.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The Gen 2 page lists no sensor hardware. It states continuous monitoring of heart rate, blood oxygen (SpO2), body temperature, sleep, steps and calories. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Blood oxygen documented Whether the manufacturer documents blood oxygen (SpO2) readings for this ring. Often measured only during sleep and sometimes off by default. It is a wellness reading unless the maker states a regulatory clearance.	YesThe page states continuous blood oxygen (SpO2) tracking. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Works with iPhone Whether the manufacturer states the ring's app works with iPhone, or states a requirement that excludes it. The manufacturer's compatibility statement, not a tested result. Minimum iOS versions are in the requirements field where published.	YesiOS 17.0 or later. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Works with Android Whether the manufacturer states the ring's app works with Android phones. Some rings document only one brand of Android phone, or limit features on others. Read the requirements field.	YesAndroid 10.0 or later. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Phone and app requirements The stated phone platforms, minimum versions, apps and accounts the ring needs. Where two manufacturer statements differ, both are recorded. An account is not a subscription, but the ring may not work without it.	iOS 17.0+ or Android 10.0+ with Bluetooth 4.0 and above; RingConn app and account. One account pairs with one ring at a time. 5 to 7 days of offline storage. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Core features without a subscription Whether the manufacturer states that the ring's core health features are available without a paid plan. False means the maker limits most insights to paid members. True can still leave optional paid add-ons, listed in the terms field.	YesThe page states no subscription is required and lists the subscription fee as free. Sources · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.RingConn: RingConn Gen 3 product page and model comparisonChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Subscription terms as stated What the manufacturer says works with and without a paid plan, and any optional paid add-ons. Prices are not recorded. A trial month included with a ring is not a permanent entitlement. Plans and their contents can change after purchase.	RingConn states no subscription is required and lists the subscription fee as free; no paid plan or paid add-on is described on the Gen 2 page. Sources · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.RingConn: RingConn Gen 3 product page and model comparisonChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Wellness or regulatory wording The manufacturer's own wording on whether the ring is a wellness product or holds a regulatory clearance. Quoted as published. Features such as ECG, apnea or blood pressure trends are not a diagnosis unless the maker states a clearance for that feature.	RingConn markets automatic sleep apnea monitoring with a stated 90.7% accuracy; no regulatory clearance is stated. Its Gen 3 page says the product is not a medical device and its apps are not intended to diagnose, treat, cure or prevent any disease.The not-a-medical-device sentence appears on the Gen 3 page, not on the Gen 2 page. Sources · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.RingConn: RingConn Gen 3 product page and model comparisonChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
In the box Items the manufacturer lists in the exact US package. Sizing kits, spare charging cases, extended protection and paid plans are separate unless the package lists them.	Gen 2 smart ring, size-specific charging case, USB-C charge cable, instruction manual and quick start guide. Source · 2026-10-21 RingConn: RingConn Gen 2 product pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.
Questions to check before buying	Sensor hardware is not listed for Gen 2, and the sleep apnea accuracy figure is a manufacturer claim with no regulatory clearance stated. RingConn now also sells Gen 3 with different sizing; Gen 2 remains listed on the check date but could be withdrawn.

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