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Polar RS300X Heart Rate Monitor - Men\'s


    Polar RS300X Heart Rate Monitor - Men's

    The attractive and simple-to-use Polar RS300X heart rate monitor improves your fitness results by helping you train at the optimum intensity. See details

    • $129.95

    Item # 793103

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    The attractive and simple-to-use Polar RS300X heart rate monitor improves your fitness results by helping you train at the optimum intensity.

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    The attractive and simple-to-use Polar RS300X heart rate monitor improves your fitness results by helping you train at the optimum intensity.

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    The attractive and simple-to-use Polar RS300X heart rate monitor improves your fitness results by helping you train at the optimum intensity.

    • Included Polar WearLink®+ 31 transmitter chest strap accurately measures your heart rate; transmitter is coded, eliminating interference from other heart rate monitors
    • Polar OwnZone® feature determines an individual training zone and guides you through an appropriate warm-up routine based on your current physical condition
    • Watch offers average and maximum heart rate during total exercise time; includes time spent in target zone
    • Visual and audible alarm alerts you every time your heart rate exceeds the upper limit or falls below the lower limit of your target zone
    • RS300X displays how many calories you've burned during your workout
    • Tracks your latest 16 training sessions and your last 16 weeks of training
    • Event countdown timer keeps you motivated by showing how many days remain until race day (e.g. Boston 21 days)
    • Watch features include time of day with alarm and snooze, dual time zone, date and weekday indicator, stopwatch and low-battery indicator
    • Display text in English, German, French or Spanish
    • Water resistant to 164 ft. (50m)
    • CR2032 Battery included
    • Add the Polar S1 Foot Pod™ and G1 GPS sensor (both sold separately) so you can track speed and distance during your workouts
    • Transfer training data to with the optional Polar FlowLink™ (sold separately)

    Please note: Polar products can only be shipped to U.S. addresses.


    Item 793103

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    Polar RS300X Heart Rate Monitor - Men's Specs
    Best use
    Chest strap
    Windows / Mac
    1.6 x 1.6 inches
    1 year
    50 meters
    1.3 ounces
    Analog or Digital
    Heart rate sensor type
    Heart rate target zone(s)
    Time in target zone
    Average heart rate
    Recovery heart rate mode
    Tracks calories burned
    Exercise log
    Wireless communication
    OS compatibility
    Countdown timer
    Time display
    User replaceable battery
    Average battery life
    Water-resistant depth

    Polar RS300X Heart Rate Monitor - Men's

    Loading Ratings & Reviews...

    Polar RS300X Heart Rate Monitor - Men'sis rated3.1429out of5by7.
    Rated4out of5byfromNice balance between features & priceI bought this as a replacement for an FT-7 that was losing the signal quite often. I do not know what was wrong, but decided to upgrade to this one which has a better sensor. I like that I can choose to add a GPS or shoe sensor to this one, although I have not done that. I have not used all of the extra features, but for the basic tracking that I do use, this unit works great and after maybe 60 miles of hiking I have not had it lose sync, not even once (only had it 3 weeks though).
    Date published: 2013-10-06
    Rated4out of5byfromExcellentI bought this monitor after my last Polar died after years of use. This model was easy to program and has stayed in position regardless of the activity Ive been performing (running, plyometrics). I like how the monitor's band is machine washable; the batteries are also easy to replace. The only drawback I've noticed is twice the receiver and transmitter have lost their connection. Initially the poor connection was due to a dead battery but recently I was two miles in to a run and the connection was lost again. Perhaps its time for another cleaning.
    Date published: 2013-09-07
    Rated3out of5byfromGood Beginner HR watchGreat Beginner HR watch. It does what it's supposed to do. It establishes a quick reading as well as maintains constant updates as your HR changes. However, the button placement is not very good. I wear gloves when riding and EVERY time I ride the buttons get pushed by my gloves. This changes the screen display and even starts / stops my HR monitoring. Very annoying. Also, the computer uploading is nearly impossible. I've never tried it for two reasons. One, I can't find the docking port anywhere except on the Polar website, and they were back ordered when I check. Second, according to the reviews I read online, you have to download software in addition to buying the docking port. Another frustrating thing is the lack of availability for the foot pod GPS tracker. I can't find it ANYWHERE! It would be awesome to be able to use all the supposed features, but I can't because of the lack of the necessary parts. Overall, it's a decent starter watch, but don't buy it if you're serious about keeping accurate stats for every workout.
    Date published: 2013-05-20
    Rated1out of5byfrombrokenIn theory, this should've been a great HRM. Polar certainly has a good name in the business. The first thing I discovered when I opened the box was that the battery in the transmitter was dead. Well ok, I'll replace the battery. When I replaced the battery, the HRM started showing a heart rate of between 188 and 190 bpm. I normally top out around 170 and since this value showed up when I was standing still (60bpm by a hand count), the HRM clearly wasn't working. I tried clearing & re-starting a couple times, but no luck. I sent it back & bought a different brand. Sigh.
    Date published: 2013-05-01
    Rated4out of5byfromfeature packed, but takes time to learnLet me give some background of previous HRMs I've had and my likes and dislikes to put the Polar RX300 in perspective. Over 10 years ago I had a Polar Protrainer NV. It had a chest detector/transmitter which attached to an elastic strap to go around my chest. What I liked about this monitor. It was solid and waterproof – I could wear it swimming. You set your stats and your zones, and you could set it to beep if you were outside of your target zone. It would beep in time with your heart rate, which I liked. It also had a cool-down feature, which I really liked. You could set a cool down time (r.g. 2 minutes), and after you ended your workout and stopped the timer, it would continue for your cool down time and record how much your heart rate dropped. I could also start it by bringing the watch unit up to the chest unit. In my first full marathon, I took lap splits at each mile. When I finished the race, I thought I had a gold mine of information of my split times and heart rates for each mile of the race. I did some stretching on a mat at the cool down tent and... brought my wrist up to my chest, which restarted the HRM recording. As this unit only had one session, all of my race data was now gone. Oh well. Now that quick start was not a good feature. It also had a handy carrying bag. The battery is replaceable in the watch unit, though it did void he warranty if you did it yourself as the gasket was a bit tricky. As far as the chest unit, the battery is not replaceable. I sent it in a few times for replacement, and then decided to do it myself after reading online instructions for how to do it.... which destroyed it and led to me buying a different HRM. The second one I bought was a Garmin, without the GPS, but with a foot pod to record pace and distance. The pod would jump in pace when I crossed the 5 MPH boundary. I had so much trouble with the Garmin service dept, that I ended up taking it back to the store 6 weeks later for a refund (good ol' REI). The next HRM I bought was a Suunto t3c. This one not only recorded HR. but also computed training effect, which was a measure on a scale of 1 to 5 of how vigorous my workout session was, and also computed my activity level, which was a measure on a scale of 1 to 10 of how much conditioning I was getting from my workouts over the last few weeks. Plus, it had multiple sessions (15, I think), so I didn't need to transcribe data before my next event. One problem I had with this watch was that, although it claimed to be waterproof, it never was. I put my arm into the pool to clean my filter basket,and the next day the crystal was fogged. I must say Suunto's service department was impeccable, with no problems, and paid for two-day Fedex shipping both ways. I had the watch replaced for free 3 times (twice because of water, and once because the case broke), and I've learned not to stick my hand into water or wear it swimming. Unfortunately, I wore it hiking in the rain last summer, and it fogged up again. The warranty had run out now, so time to find something else. I wanted to go back to Polar, as I had the best luck with that brand, but I needed one that could record more than one session (didn't want that accidental reset happening again). That's what led me to the RX300. It was the only Polar that would record multiple sessions without going much more expensive. What I didn't like was the RX300 logo on the face. It came with a quick start guide in the box, and a users guide downloaded from their website, but neither seemed to be as complete as the original I bought over 10 years ago. Also no storage bag. Hmmm.... I set it up with my personal info and my zones. It does do interval timing. I set that up for 3 intervals. I took it out for a test drive. After a few minutes, it started beeping repeatedly, too fast to be my heart rate. What was going on? I tried to shut it off, but couldn't. After a minute, it stopped by itself. Then I realized that was my interval timer, and it was set up to beep on the second interval. I was able to go into settings while I was in the middle of a session and turn that off. Good thing. I struggled with this HRM for several weeks, trying to figure out how to shut off the intervals entirely, without much luck. The front button to mark a lap didn't seem to want to work half the time. Sometimes it would and sometimes it wouldn't. I wasn't too happy with this watch. I had had it for over a month now. I had another half marathon coming up in a few weeks, and I needed to figure out how to make this thing work the way I wanted it to. I searched online, and found this great website that had videos that explained this watch in great detail. This was totally helpful. I had already figured out how to input my personal data, such as height, weight, birth date, etc. I found that I had 5 exercise types I could edit. I found what I had unwittingly done was set up a custom exercise type with three time intervals. Easy enough to change that. There is a default interval type I can edit and use when I want to do intervals. I change the default exercise type before you start a session, and then that type will be in effect for all sessions until I change it again. For each exercise type, I can set different heart rate zones, different max heart rate, different intervals or none at all. You can even change the name of the exercise type. Very customizeable. I set a basic one and left the others alone. The watch actually has three different displays when it's in HRM/stopwatch mode, and each display has 2 custom rows (sort of). The first display has the heart rate on the bottom row, and one customizable row above (it says you have two, but displays additional info about the first row, so the second data row is not shown). The second display has the cumulative stopwatch time on the bottom row, and two customizable rows above. The third display has lap time on the bottom row, and two customizable rows above. The bottom row has a larger font than the other two. So I could display up to 8 different pieces of information between the three displays. I can cycle through the displays by pressing the lower right button. This watch is looking better. On the Heart Rate display, I set it to show my lap time in the top row, and it also displays the lap number I'm on. On the Stopwatch Time display, I set the top row to show the time of day, and the second row to show my average heart rate. On the Lap Time display, it doesn't show the lap number, which is why I also display lap time on the Heart Rate display. I set the top row to show total cumulative time, and the second to show my heart rate. This is redundant of information on other displays, but it shows everything on one display, except for the lap number. I'm okay with that. There are other things it could display, such as calories expended, average lap time, and so on. Fully customizable. I'm getting to really like this watch. This unit also has the capability to start the HRM and stopwatch when I bring the watch unit up to the chest strap, like the one I had 10 years ago. But also, what actually happens when I bring the watch unit up to the chest strap is fully programmable. I could have it start the HRM and stopwatch, or turn on the back light, or cycle through the displays, or a bunch of other things. I set it to cycle through the displays, just to make it easy for me. Now I'm really, really getting to like the watch. I can set a future event date, such as my next race. Lo and behold, when the watch is in regular time mode, the RX300 logo is now replaced with the name of the event and the number of days remaining until that event. Now I really, really, really like this watch. I'm thinking I can only set one event at a time, but it would be handy if I could set several, and it would display the days remaining until the nearest one. Even if I don't have an upcoming race event, I will put in something such as a birthday or vacation or holiday, just to replace the logo. This watch also has a training feature which I haven't used yet, to compute my VO2 intake and such. I'll try that out in the future. Okay, now onto the data. It can store up to 16 events. For any event, it displays the total time, the average and maximum heart rate (in both beats per minute and % of maximum), and number of calories expended. For each lap, it also displays your lap time, your average and maximum heart rate in both beats per minute and maximum. This is a lot of information, which I found very useful. I just did a half marathon this last weekend. In reviewing my data, I found my times were a little slower than I would have liked, but it was a hilly course a higher elevation, so that's understandable. But my average heart rate and maximum heart rate were consistent from mile to mile. It was a race I can be happy with. This exemplifies the value of a HRM. This watch also display information on a weekly basis – for all my workouts during a week, it displays total time, how many calories expended, and how much time I spent in each heart rate zone (up to 5). Wow! That's great. The watch does have optional equipment which I didn't buy – a GPS unit, and a foot pod. It also has a lot more features which I didn't cover. It can record up to 99 laps in a single event, and can store up to 16 events. Oh yeah, the battery is user-replaceable in the chest strap. That was a biggie that wasn't available with my first HRM. The battery is semi-user-replaceable in the watch unit, meaning you can do it, but not as easy, and will void the warrant due to the type of gasket used. They recommend sending it to a service center. I don't know why they didn't go with a standard user-replaceable battery feature in the watch as well. They have that feature on some of their less expensive HRM watches. So here's my down points. (1) I wish it had it's own storage bag like my old one (I'm using my old Polar bag from 10 years ago). (2) I wish it had a better owner's manual. The one from 10 years ago was very thorough and clearly written. I've bookmarked the video webpage, as the videos were very well done. (3) I wish it had a cool-down feature. I really like that on the old one. It was a challenge to see how much I could slow down my heart rate within 2 minutes after a workout session. (4) I wish it had the ability to store multiple upcoming event dates. I like that feature. (5) The strap is integrated into the watch body and is quite stiff, making it more difficult to put on and take off than should be required. As it is stiffer, perhaps it will last longer than an ordinary strap? But if it ever breaks, the whole think becomes a pile of junk. (6) I wish the battery was user-replaceable in the watch unit as it is in the chest strap. The problem I had with the lap button not working seems to have cleared up. Perhaps something was set wrong. Overall, a feature-packed HRM, once I learned how to use it. And I'm still discovering. I think it is well worth the money, and then some.
    Date published: 2013-04-10
    Rated4out of5byfromNice feature, easy to useMake sure you wet the contacts on the chest band before putting on.
    Date published: 2013-03-09
    Rated2out of5byfromDissapointed at lack of basic functionI'm a runner and wanted to push my training to the next level by tracking my heart rate. I'm your slightly better than average weekend warrior runner. However, I was shocked to find out this watch lacked a basic function to time laps/splits. There's no way to determine how long I've been running except to know what time I started and stopped and then do the math. The cheapest $30 watches have this basic function. I don't understand why this should be a "premium" feature in heart rate watches. I never even used the watch...not once. I put it back in the box 10 minutes after opening it. Seemed like a good watch otherwise.
    Date published: 2013-02-27

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