{"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":"2026-09-17T12:26:04+00:00","price":"24.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0D5D4FS61?maas=maas_adg_api_594037644329833239_static_12_45&ref_=aa_maas&tag=maas&aa_campaignid=822cba7d234f2ff2afc2d5ff6c955e6b&aa_adgroupid=ccc24f352e2504044fc5170d11a536b4_PBSEP_!!!affid!!!_118045_&aa_creativeid=1c7bkqQYf2QPYX5oYW_bwXAg_ablk0VRLIlc2gxcZ6vYMzbkM_c"}],"product":{"brand":"HOUAN","evidence_url":"https://mail.mainbuyer.com/evidence/products/fitness-tracker-1-47-full-touchscreen-activity-tracker-with-heart-rate-blood-oxygen-blood-pressure-sleep-monitor-step-calorie-counter-pedometer-b0d5d4fs61/prices","gtin":null,"id":5325,"model_number":null,"name":"Fitness Tracker 1.47\u00e2??\u00e2?? Full Touchscreen Activity Tracker with Heart Rate Blood Oxygen Blood Pressure Sleep Monitor Step Calorie Counter Pedometer","product_url":"https://mail.mainbuyer.com/product/fitness-tracker-1-47-full-touchscreen-activity-tracker-with-heart-rate-blood-oxygen-blood-pressure-sleep-monitor-step-calorie-counter-pedometer-b0d5d4fs61","urn":"MB-AWIN-GB-B0D5D4FS61"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"24.99","historical_low":"24.99","last_observed_at":"2026-09-17T12:26:04+00:00","low_30d":"24.99","low_90d":"24.99","median_price":"24.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:26:04+00:00"}}