Ray versus Circular Ring 2
Circular Ring 2 is still a crowdfunded pre-order. Ray is a product you can buy now.
Circular Ring 2 is a smart ring with on-demand ECG, currently offered as a Kickstarter pre-order at about $299, with a $349 list price. Campaign prices and delivery dates can change, so it isn't yet an ordinary retail purchase. Ray is sold directly, needs no subscription and is worn on the wrist.
The short answer
Consider Circular Ring 2 if on-demand ECG in a ring matters to you and you're comfortable with crowdfunding risk. Choose Ray if you want a tracker you can buy and wear now, with no charging dock and no ring sizing.
Campaign pricing and fulfillment estimates can change; this is not presented as a currently shipping retail product.
Circular Ring 2 status: Pre-order.
Side by side
Specs are manufacturer claims and US pricing snapshots, not lab-test results. A blank promise is less useful than a clear tradeoff, so we keep this list deliberately practical.
| What changes | Chargerless Ray | Circular Ring 2 |
|---|---|---|
| Format | Screen-free wristband | Smart ring |
| Power | Light powered; no charging routine | Rechargeable; up to 7 days claimed |
| Screen | None | None |
| US price | $219 silver / $249 gold | About $299 campaign price / $349 list |
| Required subscription | None | No required core subscription; optional premium features planned |
| Core tracking | Sleep, heart rate, HRV, temperature, steps and light exposure | Sleep, activity, recovery, HR, HRV, temperature and on-demand ECG |
Still weighing fitness trackers? Read what to look for in a tracker you'll want to wear every day.
Neither wins every category
The best tracker is the one whose compromises fit your life—and that you will actually keep wearing.
Why choose Ray
Ray is a normal retail purchase with no charging dock or finger sizing step.
Why choose Circular Ring 2
Circular Ring 2 promises ECG and a compact ring form, but remains a Kickstarter pre-order.
Research note. Competitor facts were checked against Circular Ring 2 Kickstarter FAQ on August 20, 2026. Prices, promotions, regional features and announced-product timelines can change. Ray details reflect the current Chargerless product page. Neither product is a substitute for medical care.
Wear your health. Not a charger. Ray tracks the essentials in a 7-gram bracelet powered by light. Silver starts at $219. Gold starts at $249. No required subscription.
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