Polar exercise features
Wireless ECG accurate heart rate
Polar sport zones
Polar OwnZone®
Polar OwnCal®
Polar Fitness Test™ with OwnIndex®
Polar Heart Rate Rest Test™
Self Walk Test with WalkIndex™
Polar OwnCode® (5kHz)
Polar OwnCode® (2.4 GHz) W.I.N.D.
Polar OwnOptimizer™
Polar Keeps U Fit ™ - Own Workout Program
Polar OwnRelax™
Polar Body Workout
HR-based target zones with visual alarm 3
HR-based target zones with audible alarm 3
Cadence-based target zones with visual and audible alarm
Exercise Set (extended exercise profiles)
Fitness Bullets ( á 10 minutes in target zone)
Independent CountDown / CountUp timer
HRmax(Polar Fitness test-based)
HRmax(age-based)
Interval timers
Maximum heart rate of total exercise
Average heart rate of total exercise
Minimum heart rate of total exercise
Average heart rate of each lap
Maximum heart rate of each lap
Recovery measurement (HR / time)
Relaxation rate during exercise
Number of laps 99
Automatic lap recording
Exercise Date
Altitude and ascent
Alternating / repeating countdown timers
Interval trainer (HR, pace, distance) guided workouts
ZonePointer
You&I settings for two users
ZoneLock


Running features
Speed/Pace and Distance
Speed displayed in pace, or kmph/mph
Running Index
Running Cadence and Average Stride Length
Shoe selection
Target pace
Target pace difference
Target pace alarms
Trip Odometer
Run Distance
Running route elevation profile
Time and Distanced based interval timer
Totals mileage, kilocalories, time training
Distance summaries
Speed/Pace summaries
Speed/Pace target zones
Speed/Pace lock
Polar S1 foot pod™
Polar s3 stride sensor™ W.I.N.D.


Cycling features
Trip
Distance
Distance based interval
Distance based recovery measurement
Odometer (1/2 and total)
Speed (current, average and max)
Wheel size settings for two bicycles
Bike mount Opt.
Speed sensor
Cadence sensor
Polar Power Output Sensor™
Estimated Time of Arrival
Graphical comparison of two values
Calorie consumption rate/hour
Calorie consumption rate/km
Autostart/stop
SpeedPointer
Automatic display scroll
Multifunctional handle bar/stem installation
Speed sensor installation for different fork shapes
Temperature and altitude


Weight management features
Polar OwnCal®
Body Mass Index (BMI)
Fitness Bullets (á 100 kcal expended)
Polar Weight Management Program™
Weight Diary
Exercise Diary
Nutrition Diary
Program Update
Diary file


Altimeter features
Altitude with graphical trend
Vertical speed (ascent and descent rate); ave. and max.
Altitude alarms
Slope Counter
Cumulative Ascent and Descent


Barometer features
See level pressure with graphical trend
Absolute barometric pressure
Temperature
Barometric pressure drop alarm


Compass features
Bearing in degress
North indicator, cardinal points and graphical bearing indicator
Bearing tracking function
Declination setting


Mobile connectivity
Polar MobileLink


Computer connectivity
Transfer exercise data from wrist unit to polarpersonaltrainer.com via Polar WebLink (SonicLink/Infrared)
Transfer logos from Polar web site to wrist unit (UpLink)
Edit wrist unit settings with Polar UpLink Tool and transfer them to your Polar product (UpLink)
Compatible with Polar Precision Performance™ analysis software
Compatible with Polar ProTrainer 5™ software


Data transfer
Infrared using external Polar IR Interface (optional)
Polar IrDA USB 2.0 Adapter or internal/external non-Polar IrDA adapter
SonicLink
UpLink


Recording features
R-R Recording
Number of exercise files (with summaries) 99
Online recording with optional Polar IR Interface
Exercise file info page with date and time
Exercise Time (total)
Time in target zone
Target zone limits
Average heart rate
Maximum heart rate
Last OwnIndex
Last WalkIndex
Calorie expenditure (Exercise/Weekly/Total/Fat%) Exe.Tot.
Automatic Logbook with circular memory
Season totals
Recording rate
Memory left indication
Lap info
Aerobic/Anaerobic threshold summary
Fitness Exercise Diary
Fitness Exercise Diary with personal targets
Weekly history
Short diary
Distance (total)


Basic features
Heart rate (displayed as bpm)
Heart rate (displayed as % of maximum heart rate)
Heart rate (displayed as graphical trend)
Heart rate (displayed as HRR%)
Automatic/Manual target zone (% / bpm / HRR%) %/bpm
Visual and audible alarm in target zones
Water resistant 50m
Backlight
HeartTouch™, button-free operation of wrist unit
Heart rate sets: pre-program favorite exercise settings
Manual target zone (% / bpm)
Automatic age-based target zone (% / bpm)
Easy start (setting wizard)
Over-sized display
User configurable displays all lines
Dome button, with touch response and sound
Sound volume level setting
Double antenna (longer range, less disturbance)
KeyLock
Event Countdown Timer
Display zoom
Graphical target zone indicator


Watch features
Time of day (12/24h) with alarm
Dual time zone
Date and weekday indicator
StopWatch
Automatic exercise reminder (visual)
Exercise reminder (visual/alarm)
Low battery indicator
Alarm with snooze
Countdown Timer
Reminders (visual/alarm)
User replaceable battery


Language features
Display text in English
Display text in English, German, French and Spanish
Display text in English, German, French, Spanish and Italian


Transmitter belt
Polar T31 transmitter
Polar T31 coded™ transmitter compatible
Polar WearLink® 31 coded transmitter (changeable battery)
Polar WearLink® transmitter W.I.N.D. (changeable battery)




Features & More

RS400sd Overview

Buy Online

Manual

Support & Download

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Main Features

Running Index

Based on heart rate and speed data measurement during the run.
Read more »

Speed/Pace and Distance

Motivate your training sessions with accurate distance, speed (min/km or min/mile) and pace (km/h or miles/h).
View demo »

Polar sport zones

Helps you to train at the right intensity.
Read more »

Auto lapping

Set your running computer to automatically take laps at preset distancies.
Read more »

Interval trainer (HR, pace, distance) guided workouts

Create your personal multizone workouts with heart rate/speed/
distance and timing guidance.
Read more »