activity
apparel
background
beat
biceps
black
body
boy
bracelet
calories
casual
caucasian
clothes
confident
connect
counter
detector
device
electronic
exercise
fit
fitness
gadget
gray
guy
gym
hand
handsome
heart
hearth
isolated
male
man
measure
muscular
pedometer
pulse
rate
section
smart
smartwatch
sport
sportswear
technology
timer
tracker
trainer
using
wearable
wrist