{"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":"2026-09-20T08:49:03+00:00","price":"329.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FWC4ND7R?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d&aa_adgroupid=beaae777e8558327bef25eedab51dfc5_PBSEP_!!!affid!!!_118045_&aa_creativeid=b222YFzPPTlr1hK7yOCLXubASppVMtbZgt_bTPc7vVDLfHmE_c"},{"currency":"GBP","in_stock":true,"observed_at":"2026-09-19T08:17:32+00:00","price":"329.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FWC4ND7R?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d&aa_adgroupid=beaae777e8558327bef25eedab51dfc5_PBSEP_!!!affid!!!_118045_&aa_creativeid=b222YFzPPTlr1hK7yOCLXubASppVMtbZgt_bTPc7vVDLfHmE_c"},{"currency":"GBP","in_stock":true,"observed_at":"2026-09-18T08:29:45+00:00","price":"329.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FWC4ND7R?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d&aa_adgroupid=beaae777e8558327bef25eedab51dfc5_PBSEP_!!!affid!!!_118045_&aa_creativeid=b222YFzPPTlr1hK7yOCLXubASppVMtbZgt_bTPc7vVDLfHmE_c"},{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:29:05+00:00","price":"329.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FWC4ND7R?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d&aa_adgroupid=beaae777e8558327bef25eedab51dfc5_PBSEP_!!!affid!!!_118045_&aa_creativeid=b222YFzPPTlr1hK7yOCLXubASppVMtbZgt_bTPc7vVDLfHmE_c"}],"product":{"brand":"Ultrahuman","evidence_url":"https://www.mainbuyer.com/evidence/products/ultrahuman-ring-air-sleep-and-fitness-tracker-smart-ring-for-men-and-women-no-app-fee-for-standard-features-up-to-6-days-battery-life-size-6-b0fwc4nd7r/prices","gtin":null,"id":10524,"model_number":null,"name":"ULTRAHUMAN Ring AIR \u00e2?? Sleep and Fitness Tracker, Smart Ring for Men and Women, No app fee for Standard Features, Up to 6 Days Battery Life (Size 6)","product_url":"https://www.mainbuyer.com/product/ultrahuman-ring-air-sleep-and-fitness-tracker-smart-ring-for-men-and-women-no-app-fee-for-standard-features-up-to-6-days-battery-life-size-6-b0fwc4nd7r","urn":"MB-AWIN-GB-B0FWC4ND7R"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"329.00","historical_low":"329.00","last_observed_at":"2026-09-20T08:49:03+00:00","low_30d":"329.00","low_90d":"329.00","median_price":"329.00","observation_count":4,"priced_observation_count":4,"retailer_count":1,"span_days":3,"tracked_since":"2026-09-17T12:29:05+00:00"}}