{"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":"2026-09-17T12:27:56+00:00","price":"399.98","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0GMPTY2S9?maas=maas_adg_api_591851791929461796_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=a924ca937c72d5c74296c62a512fd77e&aa_adgroupid=5465afb7c684db5136786ada96d4c225_PBSEP_!!!affid!!!_118045_&aa_creativeid=d7394BMTy3wR9cWfqCVnDz1vdVMuw_bKg8tABSJh56KSdI9Y_c"}],"product":{"brand":"Lefant UK(ZYG)","evidence_url":"https://mail.mainbuyer.com/evidence/products/lefant-m5-pro-robot-vacuum-cleaner-with-mop-smart-all-in-one-station-b0gmpty2s9/prices","gtin":null,"id":8421,"model_number":null,"name":"Lefant M5 Pro Robot Vacuum Cleaner With Mop,Smart All-in-One Station","product_url":"https://mail.mainbuyer.com/product/lefant-m5-pro-robot-vacuum-cleaner-with-mop-smart-all-in-one-station-b0gmpty2s9","urn":"MB-AWIN-GB-B0GMPTY2S9"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"399.98","historical_low":"399.98","last_observed_at":"2026-09-17T12:27:56+00:00","low_30d":"399.98","low_90d":"399.98","median_price":"399.98","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:56+00:00"}}