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Best Smart Rings · Circular · Updated June 2026

Circular Ring 2: specs and price (2026)

Circular Ring 2 has a US price of $379 ($379 (base Black) per TechAdvisor; premium finishes higher. No subscription required (some future features use Circular Coins virtual currency).). Below is its full, sourced spec sheet — every value links to the source and the date we captured it.

Specifications

Price (US)$379 $379 (base Black) per TechAdvisor; premium finishes higher. No subscription required (some future features use Circular Coins virtual currency).
BrandCircular
Released2025-08
materialTitanium (PVD coating on premium finishes)
weight g3
battery days8
spo2Yes
temperature sensorYes
ecgYes
subscription requiredNo
water resistance m—

Source: shop.circular.xyz (verified 2026-06-15) · corroborated by techadvisor.com. Price $379 (black), August 2025 availability, ECG (first smart ring with on-finger ECG, FDA-cleared AFib detection), SpO2, skin temperature, and no-subscription policy confirmed via TechAdvisor review. CORRECTED water_resistance_m from 50 to null: Circular publishes only an IP68 rating with no depth-in-meters spec; the 50m figure was unverifiable and reviews describe it as IP68 rather than a 50m/5ATM depth rating. Weight ~2-3g (kept 3 as midpoint).

Frequently asked questions

How much does the Circular Ring 2 cost?

The Circular Ring 2 has a US price of $379 ($379 (base Black) per TechAdvisor; premium finishes higher. No subscription required (some future features use Circular Coins virtual currency).), as of 2026-06-15.

When was the Circular Ring 2 released?

The Circular Ring 2 was released 2025-08.

What are the Circular Ring 2's key specs?

Circular Ring 2 (Circular): material Titanium (PVD coating on premium finishes), weight g 3, battery days 8, spo2 Yes, temperature sensor Yes. Full sourced spec sheet verified 2026-06-15.

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Open data & methodology · Queryable via MCP

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