Where can I buy Hammerhead One? Laurence Wattrus November 07, 2017 23:56 Updated Follow We ship internationally and you can buy it from our website www.hammerhead.io We also sell&ship via Amazon in the USA. See HERE to purchase from Amazon. Related articles I was charged by Royal Mail for the delivery. Why? Why there is no user manual? Can I race Strava segments using Hammerhead One? Can I buy Karoo at a retailer? How do live-features work? Comments 0 comments Please sign in to leave a comment.