{"niche":"有哪些适合预算的心率监测胸带（心率带）选择？","description":"What are some budget-friendly options for a heart rate monitor chest strap?","products":[{"brand":"Coospo","model":"Coospo H9Z","price_gbp":32.46,"origin_country":null,"specs":{"battery_life":"50 hours","compatibility":"Bluetooth 5.0 and ANT+","waterproof_rating":"IP67","heart_rate_accuracy":"+1 bpm"},"confidence_score":null,"sources":[{"label":"COOSPO","url":"https://www.coospo.com/products/h9z-chest-heart-rate-monitor","currency":"USD","source_country":"US","price":43.89,"price_gbp":33.14,"scraped_at":"2026-06-23T19:03:54.285317"},{"label":"Walmart","url":"https://www.walmart.com/ip/COOSPO-H9Z-Rechargeable-heart-rate-monitor-BT5-0ANT-for-Garmin-wahoo-Zwift/5441305980","currency":"USD","source_country":"US","price":null,"price_gbp":null,"scraped_at":"2026-06-23T19:03:54.285317"},{"label":"Perform Well","url":"https://www.perform-well.com/products/heart-rate-monitor-with-sensor","currency":"USD","source_country":"US","price":42.99,"price_gbp":32.46,"scraped_at":"2026-06-23T19:03:54.285317"},{"label":"COOSPO","url":"https://www.coospo.com/products/h9z-chest-heart-rate-monitor","currency":"USD","source_country":"US","price":43.89,"price_gbp":33.14,"scraped_at":"2026-06-23T19:03:57.254492"},{"label":"Walmart","url":"https://www.walmart.com/ip/COOSPO-H9Z-Rechargeable-heart-rate-monitor-BT5-0ANT-for-Garmin-wahoo-Zwift/5441305980","currency":"USD","source_country":"US","price":null,"price_gbp":null,"scraped_at":"2026-06-23T19:03:57.254492"},{"label":"Perform Well","url":"https://www.perform-well.com/products/heart-rate-monitor-with-sensor","currency":"USD","source_country":"US","price":42.99,"price_gbp":32.46,"scraped_at":"2026-06-23T19:03:57.254492"}],"summary":"The Coospo H9Z is a rechargeable chest-strap heart rate monitor that broadcasts heart-rate data via Bluetooth 5.0 and ANT+. It supports HRV and heart rate zone tracking with a 5-color LED, and is rated IP67 for sweat and rain. It's designed for workouts where you want more stable heart-rate sensing than wrist/optical options and need compatibility with common fitness apps and bike computers.","ideal_for":"It's a budget-friendly chest strap option because it offers 50 hours battery life on each charge and dual Bluetooth 5.0 and ANT+ compatibility, plus IP67 waterproofing."}]}