Fitness tech: sale + VO₂ rollout
Amazon’s Spring Sale ends today (March 31) with headline deals — Apple Watch Series 11 listed $100 off and hundreds of wearables and home‑gym markdowns tracked live by Lifehacker and CNET ( ). Concurrently, Gentler Streak added VO₂ max trend tracking to its Wellness tab, pushing consumer health apps further into cardio and performance metrics (9to5mac.com).
Amazon’s Big Spring Sale pushed multiple Series 11 SKUs to new lows — the 42mm GPS hit about $299, the 46mm GPS around $329, and a 46mm GPS+Cellular listing showed roughly $429. (macprices.net) The event also featured steep cuts on other wearables: the Apple Watch Ultra 2 showed near $499 (about $300 off), the Apple Watch SE 3 was advertised near $219, and older SE 2 stock dipped toward $189. (mashable.com) Deal trackers noted low‑stock alerts on several models as the sale progressed, and Lifehacker reported Amazon was testing one‑hour and three‑hour delivery windows in select locations during the promotion. (mashable.com) Gentler Streak sources VO₂ max estimates from Apple Health, ingesting Apple Watch data derived from outdoor runs, hikes and walks that use heart‑rate, motion, barometric and GPS sensors. (9to5mac.com) The developer cautions the consumer VO₂ number is more accurate for runners than walkers and therefore prioritizes trend lines and averages over a single headline figure. (9to5mac.com) The update is available on the App Store now; Gentler Streak remains free to download with optional monthly, yearly, family and lifetime subscription tiers, and follows recent metric-focused updates from Gentler Stories for its training app The Outsiders. (9to5mac.com)
