{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-11-12T04:11:21+00:00","price":"199.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0H3ZTJ5RQ?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d_aa12afa4a16b&aa_adgroupid=35e399e0f51d5118d9906e103ee7cf72_PBSEP_!!!affid!!!_118045_&aa_creativeid=29baGobpn_aKslY4vwUBWCMnwAtElRBsPn7r1lHPfXWyqUns_c"}],"product":{"brand":"Ultrahuman UK","evidence_url":"https://www.mainbuyer.com/evidence/products/ultrahuman-ring-air-smart-ring-track-sleep-hrv-stress-no-subscription-b0h3ztj5rq/prices","gtin":null,"id":22634,"model_number":null,"name":"ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription","product_url":"https://www.mainbuyer.com/product/ultrahuman-ring-air-smart-ring-track-sleep-hrv-stress-no-subscription-b0h3ztj5rq","urn":"MB-AWIN-GB-B0H3ZTJ5RQ"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"199.00","historical_low":"199.00","last_observed_at":"2026-11-12T04:11:21+00:00","low_30d":"199.00","low_90d":"199.00","median_price":"199.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-12T04:11:21+00:00"}}