The Garmin Vivoactive ($179) worked fine for about six months, monitoring sleep and the golf function worked OK. When walking (golf) or during travel (we walk a lot), it kept track of steps and was quite useful, but I use an elliptical trainer for much of my cardio and the Vivoactive was/is totally useless unless your arms are swinging.
Title: TravelTech: Garmin Vivoactive (Vivo = "I Live") Is MortoInactive (Morto = "Dead") ... BOTTOM LINE: DON'T BOTHER!
Key Words: Garmin, Vivoactive, vivo, active, smart, watch, activity, monitor, golf, swim, water, resistant, CombatCritic, TravelValue, travel, value, product, review, Amazon, Amazon.com
Translation for Civilians: Tango Uniform = "Tits Up" (Dead)