{"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":"2026-11-07T04:10:43+00:00","price":"429.00","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0H1N7838G?maas=maas_adg_api_587917621439044438_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB86d049c9b3545c5c7a1612d2992e400d_8a44f7271c18&aa_adgroupid=3ce90ad860f6f37f76737b8e1d08c6ca_PBSEP_!!!affid!!!_118045_&aa_creativeid=5706XEA93Ua7Z2cA3xFm8khN03_bxSDTp3FJX_abcSLMWdlcs_c"}],"product":{"brand":"Ultrahuman UK","evidence_url":"https://mainbuyer.com/evidence/products/ultrahuman-ring-pro-i-health-tracker-for-sleep-recovery-activity-women-s-health-hr-hrv-rhr-i-no-mandatory-subscription-i-unibody-design-i-smart-b0h1n7838g/prices","gtin":null,"id":22029,"model_number":null,"name":"ULTRAHUMAN Ring PRO I Health Tracker for Sleep, Recovery, Activity, Women's Health - HR, HRV, RHR I No Mandatory Subscription I Unibody Design I Smart Ring For Men/Women I Raw Titanium, 13","product_url":"https://mainbuyer.com/product/ultrahuman-ring-pro-i-health-tracker-for-sleep-recovery-activity-women-s-health-hr-hrv-rhr-i-no-mandatory-subscription-i-unibody-design-i-smart-b0h1n7838g","urn":"MB-AWIN-GB-B0H1N7838G"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"429.00","historical_low":"429.00","last_observed_at":"2026-11-07T04:10:43+00:00","low_30d":"429.00","low_90d":"429.00","median_price":"429.00","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-11-07T04:10:43+00:00"}}