Upgrade your door to Anker’s eufy FamiLock S3 Max Matter smart lock for five entry methods + 2K video at its $280 low

Through its official eufy Amazon storefront, Anker is offering returning Prime Day pricing for Prime members on its FamiLock S3 Max Matter Smart Lock to $279.99 shipped, which matches the price we’re seeing direct from the brand’s website. Normally going for $400 at full price, most of the discounts we’ve seen in 2026 have dropped the costs between $350 and $300, with some occasional falls lower to $280, including during Prime Day last week. That pricing is returning here, giving you a $120 markdown to the all-time lowest price we have tracked. You can save a bit more by going with the standard FamiLock E34 Matter Smart Lock at $229.99 shipped (also matching directly), or you can find many more of the brand’s smart security device deals in the official Amazon storefront here.