activity
athlete
bracelet
calories
counter
detector
device
electronic
equipment
exercise
fit
fitness
future
gadget
gym
hand
health
heart
jog
jogging
lifestyle
loss
male
man
measure
modern
morning
outdoor
pedometer
person
pulse
rate
run
smart
sport
technology
timer
tracker
trainer
training
watch
wearable
weight
workout
wrist
wristband
young