Other contributors to this guide include Jacqui Cheng, Wirecutter editor in chief and former
senior editor at Ars Technica; Brian Lam, Wirecutter founder and former editor in chief of Gizmodo; Kevin Purdy, author of our Android smartwatch guide and former Lifehacker editor; and Jim McDannald, Wirecutter fitness writer, residency - trained
podiatrist, distance - running coach, and the author of our fitness tracker guide.