Polar RS300X Heart Rate Monitor - Unisex


Polar RS300X Heart Rate Monitor - Unisex

See available Heart rate monitors


Show Description

Built for those who have specific training goals in mind. The wrist unit displays and records your data during your workout. It can also be pre-programmed with interval and heart rate zone-based workouts. Add the optional FlowLink, down load your data to www.polarpersonaltrainer.com and you can slice and dice the data to your heart rate’s content.

OwnCal® feature shows one session energy expenditure, and accumulated kilocalories. You can also set weekly goals for calorie expenditure. The included WearLink® coded transmitter features a comfortable fabric strap.

  • Weekly summaries of total duration, calories burned, time in Polar sport zones.
  • Graphical target zone indicator.
  • Button-free operation of wrist unit.
  • Maximum and Average heart rate of each lap.
  • Maximum and Average heart rate of total exercise.
  • Three HR-based target zones with audible and visual alarms
  • Interval trainer guided workouts
  • Counts and displays calorie expenditure.
  • Compatible with the S1 Foot Pod™ and G1 GPS Pod.

Tech specs

Show Tech specs
Ideal for
  • Fitness and training
  • Running
Date display Yes
Wrist strap material Resin
IPX rating

Indicates the degree of protection against liquid. IP X1: Dripping water while in normal operating orientation; IP X4: Splashing water; IP X5: Water jets; IP X6: Powerful water jets; IP X7: Immersion up to 1m ≤ 30 minutes; IP X8: Suitable for submersion as specified by manufacturer.

Daily alarms 1
Snooze Yes
Countdown timer No
Stopwatch No
Replaceable batteries Yes
Water-resistant 50m
12/24 hour format Yes
Metric/imperial units format Yes
Calorie consumption

Calculated based on data from a heart rate monitor.

Foot pod

Attaches to your shoe, captures your running data (i.e., pace, distance), and transmits it to your heart rate monitor or GPS.

Sold separately
Programmable workouts

Want an easy jog? A fast-paced ride? A workout with lots of variety to keep you on your toes? With programmable workouts you can tailor your training to match whatever you are looking for on a particular day.

Heart rate monitor Yes
Lap history

Automatically records up to specified number of laps.

Heart rate target zones

Displays heart rate zones during activity.

Coded signal

A coded instrument ensures no interference between your chest strap and your watch, necessary if you are training in busy gyms or trails where other signals may be encountered.

Workout history Yes
Interval training Yes
Button lock Yes
Batteries 1 lithium CR2032 (included)
Virtual partner

Allows user to monitor training goals with either a virtual partner or alarms.

Heart rate in real time

Displays beats per minute during activity.

Replaceable wrist strap Yes
Speed/cadence sensor

Monitors pedalling cadence and measures pedalling strokes per minute.

Sold separately
ANT+ compatible

Ensures seamless digital wireless communication between ANT+ devices. For example, data from an ultra-low power wireless sensor can be displayed on a bike computer or smartphone, then downloaded to a PC, etc.

Chest strap Included
Made in Hong Kong