{"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":"2026-09-18T08:29:45+00:00","price":"339.57","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0D4ZJ9L88?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d&aa_adgroupid=5f32e8143f1d4c7b0c2f543b01544a68_PBSEP_!!!affid!!!_118045_&aa_creativeid=55d1R4FN7kb9FFCYN_ayA7wcgsoLA_bWZVzTpC3uZnmrqUyR0_c"},{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:29:05+00:00","price":"339.57","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0D4ZJ9L88?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d&aa_adgroupid=5f32e8143f1d4c7b0c2f543b01544a68_PBSEP_!!!affid!!!_118045_&aa_creativeid=55d1R4FN7kb9FFCYN_ayA7wcgsoLA_bWZVzTpC3uZnmrqUyR0_c"}],"product":{"brand":"Ultrahuman","evidence_url":"https://mainbuyer.com/evidence/products/ultrahuman-ring-air-smart-b0d4zj9l88/prices","gtin":null,"id":10505,"model_number":null,"name":"ULTRAHUMAN Ring Air Smart","product_url":"https://mainbuyer.com/product/ultrahuman-ring-air-smart-b0d4zj9l88","urn":"MB-AWIN-GB-B0D4ZJ9L88"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"339.57","historical_low":"339.57","last_observed_at":"2026-09-18T08:29:45+00:00","low_30d":"339.57","low_90d":"339.57","median_price":"339.57","observation_count":2,"priced_observation_count":2,"retailer_count":1,"span_days":1,"tracked_since":"2026-09-17T12:29:05+00:00"}}