Sports and Outdoors

POLAR FT4 Heart Rate Monitor

★★★★4.2·1,832 ratings

Men's POLAR® FT4 HRM :: Reach goals quicker and easier with your Polar® FT4 Heart Rate Monitor. Track heart rate in target zones, personal improvements, calories, and a whole lot more. Graphically displays your target zone for easier viewing. Dual time zone, 8 languages, comfy heart rate strap. Your VIP savings apply! Monitor prices are too low for additional discounts to be combined.

ASIN: B01DENG4UO
Embedding: CLIP ViT-L/14 · 768d
Distance metric: cosine
Doc fetch: 2mscache hitGET /v2/namespaces/amazon-products/documents/B01DENG4UO
Similar query: 20msnearest_to_id → /query

Doc fetch goes through Layer's Aerospike pull-through cache; cache hit served the row without touching turbopuffer. The similar query asks Layer for nearest neighbors of the stored product vector — queries don't go through the doc cache, so no cache header is set.

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