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Polar S625X
The ultimate running tool.
This product features Speed/Pace Distance, OwnOptimizer, IrDA infrared communication, Optional cycling cross-functionality, Mobile Connectivity and much more.

Why didn't Polar use GPS technology for Speed & Distance of the S625X Running Computer? (click here)

Polar S625X Heart Rate Monitor

chest strap size:

color selections:

size choices:

Elastic Strap Sizing:

xsmall - small

20-30 inches

medium-xlarge

30-45 inches

xxxlarge

46-60 inches

Note: Measure just below the pectoral muscles or breasts

Since the Wearlink transmitter features user changeable batteries. Here is the one you want to use when replacing your batteries.
Need an extra elastic strap while you wash the other one, or would you like a replacement for a worn out strap? We offer various sizes.
IrDa Interface and USB 2.0 port For two-way infrared data communication between your Polar product and your PC. Includes an installation CD and a cable.
IrDa Interface Serial port For data communication between your Polar product and your PC.
This sensor measures the speed at which you turn the cracks of your bicycle (i.e. cadence), measured in revolutions per minute (rpm).
The wireless sensor measuring both cycling speed and distance via a magnet rotating on the front wheel of your bicycle.
Polar Bike Mount This sensor measures cycling speed, distance and cadence. You can easily download the data to the Polar software for further analysis.
Polar Bike Mount Attach the bike mount to your handlebars. Wrap your wrist unit around the bike mount and have your heart rate displayed while cycling.
Buh Bump Electrode Cream Instead of water, apply a small amount of the electrode cream to the inside electrodes of the chest transmitter for a clear signal. Great for dry or cold weather where your body's sweat is hard to come by.

Wireless ECG accurate heart rate

OwnCal®
Counts and displays calorie expenditure.

The Polar OwnCal feature shows your energy expenditure during one exercise session as well as your accumulated kilocalories during several exercise sessions.

You can set daily and weekly exercise goals in terms of calorie expenditure with the OwnCal feature. Because the OwnCal tracks both the energy expenditure during one exercise session and the accumulated kilocalories during a longer time e.g. one week, it helps in achieving both short term and long term goals.

Fitness test with OwnIndex®
Measures your fitness level in 5 minutes.

A fitness test that measures your aerobic/cardiovascular fitness at rest in just five minutes. The result, Polar OwnIndex, predicts your maximal oxygen uptake (VO2max).

With the Polar Fitness Test you can measure your aerobic fitness by yourself, automatically and without any exertion. No other equipment other than a heart rate monitor is needed. The Polar Fitness Test is as accurate in predicting the VO2maxas any sub-maximal fitness test.

The test is based on gender, age, height, body weight, level of physical activity, heart rate and heart rate variability at rest. The OwnIndex ranges usually from 20 to 95 and is comparable to VO2max, the golden standard of aerobic fitness.

OwnIndex is most meaningful when following changes in your fitness over a long period of time. Find out how fit you are for your age and gender by comparing your result to the global references listed in the Polar user's manuals.

OwnCode®
Prevents cross-talk from other heart rate monitors. As more and more people use heart rate monitors today, preventing cross talk from other devices in group situations at the gym or when jogging with a friend becomes essential. The unique coded technology blocks unwanted signals from other heart rate monitors, ensuring disturbance-free transmission of your heart rate data.

OwnOptimizerâ„¢
Train and rest in the right balance. Polar OwnOptimizer test tells you whether you have recovered enough for your next training session.

HR-based target zones with visual alarms
3 set of limits

HR-based target zones with audible alarms
3 sets, but NOT in bike mode

Exercise set
5 sets
Create training sessions with individual settings for duration and heart rate limits. A feature that allows selecting exercise programs for interval training including heart rate target zones and recovery calculations.

HR max (Polar Fitness test-based)

HR max (age based)

Interval timers
The freely programmable Interval Trainer will automatically guide you through the interval training session with the help of the preset exercise phases: warm-up with a target heart rate zone and a countdown timer, up to 30 intervals with a target heart rate zone (after each interval you have a recovery calculation option), cool-down with a target heart rate zone and a countdown timer.

Heart rate (average) of total exercise
A figure expressed in beats per minute (bpm) representing the average heart rate measured over a specific period of time (e.g. an exercise session).

Heart rate (maximum) of total exercise
A figure expressed in beats per minute (bpm) representing the peak heart rate measured over a specific period of time (e.g. an exercise session).

Heart rate - average for each lap

Heart rate - maximum for each lap

Recovery measurement (HR/time)

Number of laps
99 laps

Automatic lap recording

Exercise date

Altitude and ascent

Speed/Pace and distance

Speed displayed in pace, or kmph/mph

Target pace

Target pace difference

Target pace alarms

Trip odometer

Run distance

Time and distanced based interval timer

Running route elevation profile

Total mileage, kilocalories, time training

Trip - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product

Distance based interval - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product
The Interval Trainer will automatically guide you through the interval training session with the help of preset exercise phases: warm-up, intervals and cool-down. The interval phase is divided into interval and recovery calculation sections, which alternate continuously throughout your interval phase. The distance-based interval ends your interval as you reach the selected distance.

Distance based recovery measurement - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product
The Interval Trainer will automatically guide you through the interval training session with the help of preset exercise phases: warm-up, intervals and cool-down. The interval phase is divided into interval and recovery calculation sections, which alternate continuously throughout your interval phase. The distance-based recovery measurement ends your recovery as you reach the selected distance. Wheel size settings for two bicycles.

Speed (current, average and maximum) - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product

Wheel size settings for two bicycles - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product

Bike mount - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product

Speed sensor - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product
A sensor measuring speed and distance. A wireless sensor measuring cycling speed and distance via a magnet rotating on the front wheel.

Cadence sensor - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product
A Polar accessory that measures the speed at which you turn the cranks of your bicycle (i.e. cadence), measured in revolutions per minute (rpm).

Power Output sensor - OPTIONAL, click here to add the Speed Sensor to the Polar S625X product
A frictionless sensor measuring the vibrations of the chain as it passes through the sensor. It measures the average and maximum cadence, power output and pedaling index of the exercise in addition to left/right pedaling balance (average balance between left and right foot pedaling).

Temperature and altitude

OwnCal®
Counts and displays calorie expenditure.

The Polar OwnCal feature shows your energy expenditure during one exercise session as well as your accumulated kilocalories during several exercise sessions.

You can set daily and weekly exercise goals in terms of calorie expenditure with the OwnCal feature. Because the OwnCal tracks both the energy expenditure during one exercise session and the accumulated kilocalories during a longer time e.g. one week, it helps in achieving both short term and long term goals.

Altitude with graphical trend available via PC software


Altitude and temperature measurement: The Polar calculates altitude by using the standard average altitude in certain air pressures according to
the ISO 2533. The air pressure is measured and the temperature is compensated every second.

The wrist unit displays altitudes between
448 m - 7590 m or between - 1600 ft - 24900 ft with at least a 1 m / 3 ft resolution.
The reference point’s adjustable altitude range is ± 610 m/ 2000 ft from the last measured value.

Cumulative ascent and descent available via PC software

MobileLink
Go wireless. This application provides training guidance on the road. No plugs or wires needed. It enables you to manage your exercises with your Nokia 5140i or 5140 phone.
You'll get instant feedback on your training sessions by reviewing graphical summaries of your exercise on the large color display of the phone. You can also free memory of your Polar product during longer trips by storing the exercise data in the phone or by transferring the files straight to Polar PC software or web service for long-term follow-up. And you can share your exertions with your coach and friends by sending your exercise files as SMS.

Transfer exercise data from wrist unit to Polar Personal Trainer web service via Polar WebLink (SonicLink/Infrared)
Polar WebLinkTM is a software used to transfer information from Polar Products to the Polar Personal Trainer web service for further analysis and storage. You can transfer data via SonicLink or IR communication.

Transfer logos from Polar web site to wrist unit (UpLink)
You can personalize your Polar wrist unit display with a logo made by Polar designer or Polar product users worldwide. You can also create your own logo with the Polar Precision Performance Software or Polar UpLink Tool and send it to us at tips@polar.fi to apply to get it published here. Please mention the Polar product model your logo is created for.

Edit wrist unit settings with Polar UpLink Tool and transfer them to your Polar product (UpLink)
Transfer wrist unit settings and logos from PC to your Polar wrist unit
With Polar UpLink Tool you can edit your wrist unit settings and transfer those easily to your Polar product. Moreover, you can design your own logo to personalize your wrist unit.
To use Polar UpLink Tool you need to have a sound card and loudspeakers as the software utilizes audio transmission.

Compatible with Polar Precision Performanceâ„¢ analysis softwarealorie expenditure (Exercise/Total/Fat%) Exe. Week Tot. Fat%
The Polar Precision Performance Software is a Windows-based PC software that gives you high-tech tools for gathering and studying the data provided by your Polar product. Using your own PC, you can update your semi-automatic training diary, design your training sessions, build a personal resource of past routines, reports and performance details or send settings and reminders to your Polar wrist unit using infrared communication.

Infrared using external Polar IR Interface - OPTIONAL, click here to add the IR Interface to the Polar S625X product

Internal/external non-Polar IrDA port

Uplink

Number of exercise files (with summaries)
99 files
The number of exercise files stored in your heart rate monitor. An exercise file includes total exercise time, time in target zone and average heart rate.

Exercise file info page with date and time

Exercise Time (total)
The time you have exercised with the stopwatch running. The Total Exercise Time feature keeps track of your cumulative exercise time since last resetting the counter. This feature gives you yet another way to set daily or weekly exercise goals for yourself.

Target zone - Time in target zone
The Time in Target Zone feature calculates the amount of total exercise time spent in your personal target zone. You can use this feature together with the Total Exercise Time to determine the effectiveness of your exercise program.

Target zone limits

Last OwnIndex

Calorie expenditure (Exercise/Total/Fat%) Exe. Week Tot. Fat%
The feature in Polar Heart Rate Monitors calculating the number of kilocalories expended during exercise is called OwnCal. This function allows you to follow the kilocalories expended during one exercise session (exercise on display) and cumulative kilocalories expended during several exercise sessions (total on display). The fat-burning percentage (fat% on display) estimate kilocalories expended from fat during a workout and is expressed as a percentage of the total kilocalories burned.

Recording rate
5s, 15s, 60s

Memory left indication

Lap info

Aerobic/Anaerobic threshold summary

Heart rate (displayed as bpm)
A measurement of the work your heart does, most commonly expressed as the number of beats per minute (bpm).

Heart rate (displayed as % of maximum heart rate)
A measurement of the work your heart does, expressed as % of your maximum heart rate.

Automatic/Manual target zone (% / bpm)

Target zones - Audible alarms
A feature informing you every time your heart rate and/or speed/pace exceeds the upper limit or falls below the lower limit of your target heart rate zone during an exercise session.

Target zones - Visual alarms
ONLY visual in cycling mode

Water resistant
30 m

Backlight

Heart touch, button-free operation of wrist unit
This function enables button free operation of certain main functions, e.g. when gloves make pressing buttons difficult. Activate the HeartTouch function by bringing your wrist unit close to the Polar logo on your transmitter. The HeartTouch function operates only when wearing the transmitter. Heart rate sets: pre-program favorite exercise settings.

Time of day (12/24hour) with alarm

Dual time zone
A feature that allows you to choose between two time zones.

Date and weekday indicator

Stopwatch

Exercise reminder (visual/alarm)

Low battery indicator

Wearlink 31 coded chest transmitter (changeable battery)
INCLUDED IN PRODUCT

How to measure for the correct Transmitter Size:
BECAUSE ONE SIZE DOES NOT FIT ALL
The measurement for the transmitter should be taken right below the pectoral muscles or breasts. If you are on the borderline of the sizes, we recommend going up to the next size. The measurements are calculated in inches, and the straps are elastic so sizes can vary based on personal comfort level. If you order the wrong size, you can exchange just the elastic strap portion only, or order a replacement elastic strap located under transmitters.

If this product contains a T31 non-coded Chest Transmitter It is a new ergonomic design that is 25% smaller. Smaller means increased comfort. A flexible rubber transmitter with manufacturer changeable batteries. A good transmitter for swimmers.

If this product contains the T31 coded Chest Transmitter A flexible rubber transmitter with manufacturer changeable batteries. A good transmitter for swimmers.

If this product contains a Wearlink Chest Transmitter It takes comfort and function to another level, the new Polar WearLink™ is the first soft transmitter belt ever produced. The transmitter’s textile strap is removable and machine washable. Replaceable fabric strap (Life of strap - 100 machine washings) The WearLink transmitter has a changeable battery and it delivers up to two years of use exercising 10 hours a week. Water resistant up to 30 meters and it is ECG accurate.

Polar Coded Versus Non-Coded Transmitters:
* Coded Transmission will greatly reduce cross talk (interference) from other heart rate monitor users with 3 feet of you.
* Coded Transmitters will work with Gym equipment that is Heart Rate Monitor Ready, but the transmission will not be coded.
* Coded Frequency will not eliminate (but can reduce) interference from other wireless disruptions like high tension wires, computers, wireless cycling systems, etc.

While you can upgrade your transmitter strap for comfort, the Wearlink or T31 transmitter will only offer a non-coded frequency to a non coded wrist receiver. Timex and some Oregon Scientific offer Digital FM Frequency, which eliminates the cross talk and interference of Analog Frequencies.


Why didn't Polar use GPS technology for SD for the S625X Running Computer?
We considered both GPS and inertial technologies carefully before choosing to go with
inertial technologies. GPS has some positive elements but we chose the best overall
technology for running anywhere and in any conditions.
We recognized that existing GPS was too heavy and consumed too much power for an
application that was meant for runners who are demanding and relatively heavy users
and train frequently. Existing GPS applications are simply not as practical for someone
who is running frequently because of the need to constantly recharge/replace batteries
and because of the discomfort of hauling abound a large GPS unit on the upper body.
When used in a real life running scenario- GPS is no more accurate that inertial sensor
technology. With inertial technology we saw that we could provide the best solution for
runners who want accurate and reliable speed and distance measurement that performs
in all conditions (indoors and outside), in urban city settings with tall buildings, even in
very heavily wooded trails and twisting turning trails and tight turning paths.

Q: GPS technology is considered advanced by many. What about the Polar inertial sensor technology that Polar uses?
The inertial technology that Polar uses is very advanced, inertial technology is used in
aerospace positioning and guidance systems, industrial robotics and in advanced
automotive applications such as active suspensions and emergency airbag deployment
to name a few.
The inertial sensors measure the acceleration of the S1 foot pod more than 1000 times
per second and use this data with advanced algorithms to calculate foot angles and gait
velocity the Polar S1 running speed and distance sensor is NOT A PEDOMETER.
Instead, it is very advanced running speed sensor.

Q: GPS provides speed and distance while running, cycling and even during X-C skiing. What about the Polar S625X?
The Polar S625X was designed primarily for runners and triathlete. So we have
insured that the running functions are optimized for running and cycling. The S625X is
fully compatible with all Polar cycling sensors. Combining cycling speed and cadence
and power options provides many more dimensions to the cycling cross-sports
experience than that offered by GPS speed and distance unit.

Q: Some GPS units provide directional features to help navigation. Why has Polar opted to leave this out in the S625X?
The S625X was designed with the knowledge that 80% of runners generally run the
same 3-5 routes. The speed and distance element of the S625X will support people who
want to track speed and distance on these routes and also lets them find more new
routes with no need for external mile markers. Navigation features are
best suited for outdoor and adventure products, while the S625X is focused on providing
runners the most relevant features for building performance and enhancing their every
running experience.

Q: Is the S1 footpod heavy?
You can't feel it when once its attached to your shoe. Infact, you will struggle to figure
out (by feel) which shoe has the footpod on it once you put it on. The Polar S1 footpod is
built to last with robust water resistance, shock resistance and easy battery change while
still not reducing shoe comfort or running performance.

Q: How accurate is the S625X?
Generally the S625X is at minimum 97% accurate even without calibration. The
accuracy increases to 99% with calibration. In relative terms, this accuracy is as good or
better than the accuracy provided by GPS. Interestingly, this degree of accuracy is
generally far better than what is seen on running treadmills. Have you ever heard of a
runner complain that a treadmill was not accurate enough for their training purposes?

Q: Do I need to re-calibrate my footpod everytime my foot pod or wrist unit battery is changed?
If you choose to calibrate your Polar S1 foot pod, the calibration factor will be stored in
the permanent memory of the S625X Running Computer. This calibration will be stored
permanently, unless you decide to change it....so if you calibrate, you only need to do it
once.

Q: Will the Polar S1 foot pod leak water?
Robust water-resistance and durability are key elements in the design of the Polar S1
foot-pod. It will survive immersion, wet running environments and continue to perform
reliably. However, the S1 was not designed for swimming or aqua-running so please do
not going swimming with it.

Q: What is the foot pod battery lifetime?
The battery lifetime is 20 hours of use in average.

Q: How do I know that the foot pod battery needs to be replaced?
When the green light on the foot pod turns red, you need to replace the battery.
Replace the battery in case the foot pod does not start or the running speed shows 00
constantly.

Q: Can I replace the battery myself if so, what is the battery type?
The foot pod is designed so that the user can replace the battery him/herself without.


Polar S625X Heart Rate Monitor
INCLUDED IN PRODUCT

Wrist unit
Wearlink coded chest transmitter with elastic strap
S1 foot pod for speed & distance
Battery included for foot pod
S-series Toolkit CD-ROM
User manual
Customer care guide
Two Year Warranty