Right now there are 588 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Health & Household › Wellness & Relaxation › App-Enabled Activity Trackers. These are inspected returns and open-box items that Amazon sells and ships itself. WarehouseHunter puts each one next to its current new price, so you can see what you save at a glance.

Brands with the most offers here: Ring, Loop, Apple, Maledan, Google, Miimall, FINTIE, Garmin. Every item is a one-off, so the stock moves all day and new deals keep arriving.