$349 Manufacturer source · 2026-10-20 US starting reference price for base finishes checked on the research date; not a live offer. Selected finish and region can change price. | Reference price | $249 ✓ WinnerManufacturer source · 2026-10-18 Manufacturer USD reference price retrieved 2026-10-18; taxes/shipping and conditional discounts excluded. |
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smart-ring | Device typePersonal preference | smartwatch |
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11–14 days (vibration off); 10–12 days (on) ✓ WinnerManufacturer source · 2026-10-20 Manufacturer claim: 11–14 days with vibration off, 10–12 with vibration on. Size, settings and use affect runtime; not an independent endurance test. | Advertised battery life | 0.75 days |
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0.09–0.12 oz (size-dependent) ✓ WinnerManufacturer source · 2026-10-20 Size 6 weighs 0.09 oz; size 15 weighs 0.12 oz. Weight depends on size. | Device weight | 0.93 oz |
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328.1 ft ✓ WinnerManufacturer source · 2026-10-20 10 ATM static pressure-equivalent rating, not an operating depth or diving claim. | Water resistance | 164 ft |
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No Manufacturer source · 2026-10-20 No integrated GPS; outdoor route/distance tracking uses the paired phone GPS. The manufacturer distinguishes rings from GPS watches. | Built-in GPS | Yes ✓ Winner |
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Yes Manufacturer source · 2026-10-20 Manufacturer-listed continuous optical pulse tracking; this is not a claim of validated accuracy. | Continuous heart rateTie | Yes |
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No Manufacturer source · 2026-10-20 RingConn states Gen 3 uses optical PPG sensing and does not record ECG. | ECG capabilityTie | No Manufacturer source · 2026-10-25 Apple's ECG app listing explicitly excludes Apple Watch SE. |
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Yes ✓ Winner | Blood oxygen sensing | No Manufacturer source · 2026-10-25 Apple's Blood Oxygen support documentation explicitly excludes Apple Watch SE. |
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Yes | Temperature sensingTie | Yes |
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Yes | Sleep trackingTie | Yes |
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No Manufacturer source · 2026-10-20 Screen-free ring; information is viewed in the companion app. | On-device display | Yes ✓ Winner |
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Yes | iPhone supportTie | Yes Manufacturer source · 2026-10-25 Manufacturer compatibility requires a supported iPhone; Android pairing is unsupported. GPS model retained; no cellular plan fee inferred. |
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Yes | Android supportPersonal preference | No Manufacturer source · 2026-10-25 Manufacturer compatibility requires a supported iPhone; Android pairing is unsupported. GPS model retained; no cellular plan fee inferred. |
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None Manufacturer source · 2026-10-20 No mandatory subscription for included features. | Required subscriptionNot enough data | Not stated / not applicable |
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