Compare up to three models from one category. Keep the purpose and the source beside the numbers.
Sleep, activity and heart-rate trends
Keep in mind Solar endurance and sensing performance have not been independently verified here.
Daily activity, sleep and recovery trends
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Fitness wearablesAdd a model |  |  |
|---|---|---|
| Prices · all markets | $219 USD≈ €196 EURECB 2026-10-12US · Preorder price · Pre-order 1 offer records & sources$219 USD≈ €196 EURECB 2026-10-12 US · Preorder price Pre-orderChargerless Ray silver case with selected standard band; gold finish adds US$30 Batch 3 plan: December 2026-January 2027. Shipping/tax total and destination eligibility require checkout.Check merchant offer ↗Price source ↗ Checked 2026-10-12 | $199.99 USD≈ €179 EURECB 2026-10-12US · Store price · In stock 1 offer records & sources$199.99 USD≈ €179 EURECB 2026-10-12 US · Store price In stockPolar US Standard sensor/band package Official structured product data lists InStock; destination checkout not completed.Check merchant offer ↗Price source ↗ Checked 2026-10-12 |
| Designed for | Sleep, activity and heart-rate trends ↗ | Daily activity, sleep and recovery trends ↗ |
| Sensors | Heart rate, HRV, body-temperature trends, steps and light exposure ↗ | Precision Prime optical HR; accelerometer ↗ |
| Tracking | Not verified | Not verified |
| Display | Not verified | No screen ↗ |
| Battery / power | Up to 60 days in darkness (manufacturer claim) ↗ | Up to 8 days ↗ |
| Battery context | Direct outdoor sunlight sustains power; indoor lighting barely charges ↗ | Manufacturer operating-time claim ↗ |
| Connection & compatibility | iPhone/Android app; Apple Health and Health Connect claimed ↗ | Bluetooth LE to Polar Flow; one app connection ↗ |
| Water / dust rating | IP68 claimed ↗ | 30 m rating ↗ |
| Weight | 7 g claimed device weight; band basis unspecified ↗ | Approx. 28 g (published US figure: 1 oz) including band ↗ |
| Subscription | No subscription claimed ↗ | No required subscription ↗ |
| Availability | New orders are for Batch 3, with planned shipping December 2026-January 2027. Sold-out batch labels and maker-hosted testimonials do not establish the first customer delivery date. | Official product listing checked. Destination delivery, taxes and checkout stock depend on the regional store. |
| Important context |
| No additional audit note. |
| Editorial pick & release | #1 · Upcoming Fitness wearablesExpected: December 2026-January 2027New orders in Batch 3 | #10 · Our Top 10 Fitness wearablesAnnounced: Sep 3, 20252025 model announcement; not the original 2013 Loop |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-12 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.
