Polar H10 vs Garmin HRM-Pro Plus for Soccer: Which Chest Strap Should You Buy?

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If you have decided a wrist sensor is not good enough for soccer, and for soccer it is not, you end up choosing between two chest straps: the Polar H10 and the Garmin HRM-Pro Plus.

Both measure the heart’s electrical signal from the chest. Both are, for any purpose a footballer has, accurate. So the comparison is not really about accuracy. It is about what each strap talks to, what it does on a match day when you cannot wear a watch, what it costs to run for three seasons, and which one plays nicely with the GPS vest you might buy next.

Here is the breakdown.

Quick Verdict

• Most soccer players: Polar H10. Cheaper, connects to anything (two Bluetooth devices at once, ANT+, and the 5 kHz signal gym equipment uses), records a session on its own, and it is the strap the GPS-vest companies list first. From about $90 to $105.
• Garmin watch owners: Garmin HRM-Pro Plus. Same accuracy, plus running dynamics and automatic sync of heart rate recorded while your watch was in the kit bag. $129.99 list, often less now that the HRM 600 is above it.
• The honest summary: if you do not own a Garmin watch, the HRM-Pro Plus’s extra $25 to $40 buys you nothing you can use. If you do, it buys you a tidier system than the H10 can offer.

Why a Chest Strap at All

Wrist sensors shine light into the skin and estimate pulse from how the blood flow changes. That works on a steady run. Soccer is the opposite of a steady run: sprint, stop, turn, jump, get shoved, sprint again. Every one of those moves jostles the watch on the wrist and the reading lags or drops out, usually at the exact moment you wanted it, the sprint.

A chest strap reads the heart’s electrical signal directly through two electrodes against the skin, the same signal an ECG machine reads, and it does not care how hard you just stopped. Both straps in this article are ECG straps. That is why the accuracy argument between them is small: they are measuring the same thing the same way, and the biggest source of error on either is a dry or loose strap, not the electronics.

I covered the case for heart-rate training in soccer in the Garmin HRM-Pro Plus review, so I will keep it to one line here: heart rate is the only cheap, objective way to see whether a player is training hard enough, recovering enough, and getting fitter over a season, and the zones only mean something if the number is right.

The Two Straps Side by Side

Accuracy: A Tie, With One Caveat

Polar calls the H10 the most accurate sensor in its history and the reviewers who test these things against reference ECG machines tend to agree. One peer-reviewed validation put the H10’s beat-to-beat intervals at a correlation above 0.93 with a clinical ECG during incremental cycling, which is as close as a consumer strap gets. DC Rainmaker, who tests more heart-rate sensors than anyone, calls it one of the most accurate on the market.

Garmin has not published an equivalent validation for the HRM-Pro Plus, and that is the caveat. In practice every side-by-side I have seen shows the two straps tracking each other within a beat or two once both are wet and warmed up. Neither has a reputation for the sudden spikes and dropouts that cheap straps and wrist sensors produce. If you are choosing on accuracy alone, you are choosing on something you will not be able to see.

What you will see is the first five minutes. Both straps read badly on dry skin. Wet the electrodes before you put the strap on, especially in cold weather or before a short session, and both settle immediately. Most “my strap is inaccurate” complaints are a dry strap.

Connectivity: Where the H10 Pulls Ahead

This is the section that decides it for most people.

The H10 broadcasts three ways at once: Bluetooth to two devices simultaneously (your phone and your watch, say, or your watch and a tablet on the sideline), ANT+ to anything that speaks it, and the old 5 kHz analogue signal that treadmills, rowers and gym bikes have read for twenty years. Walk into a hotel gym, step on the treadmill, and your heart rate appears on its screen with no pairing at all. For a player who also trains in a gym, that alone is worth the purchase.

The HRM-Pro Plus does ANT+ and Bluetooth, and nothing I can find from Garmin says it transmits 5 kHz. On a Garmin watch that is irrelevant: the strap pairs once and the watch does the rest, and the running dynamics, sync and recording behave as if the two were one device, because Garmin designed them that way. On anything that is not a Garmin, the HRM-Pro Plus is just a good Bluetooth strap that costs more than the other good Bluetooth strap.

Match Day Without a Watch

Here is the soccer problem nobody mentions in the running reviews. Law 4 does not allow players to wear a watch in a match; referees treat it as jewellery. Electronic tracking equipment is permitted when the competition allows it, and that is how GPS vests get on the pitch, but a wristwatch is coming off. So for the one session a week you most want data on, the match, the watch is in the bag and the strap has to work alone.

Both can. They do it differently.

The H10 has internal memory for one session of up to 30 hours. You open the Polar Beat app on your phone before kickoff, start a recording, put the phone in the bag, and the strap records on its own. After the game you open the app, it pulls the session off the strap, and from there it goes to Polar Flow or on to Strava and the rest. It works, with two things to remember: you must start the recording from the app, and it holds one session, so sync before the next game.

The HRM-Pro Plus does it without you thinking about it. If the strap is out of range of your Garmin watch, it stores heart rate on its own, and when the watch is back in range it syncs the gap and the activity carries on as if nothing happened. Start the activity on the watch in the changing room, leave the watch in the bag, play, come back, stop it. That is the smoother experience, and it is the feature Garmin owners end up valuing most. It does assume you own a Garmin watch.

Running Dynamics: Nice, Rarely Decisive

The HRM-Pro Plus has an accelerometer and, with a compatible Garmin watch, reports cadence, ground contact time and balance, vertical oscillation, vertical ratio and stride length. The H10 reports heart rate and beat-to-beat intervals, nothing else.

For a distance runner those metrics are a real selling point. For a soccer player they are a curiosity. Ground contact time during a 90-minute match of sprints, jogs and standing still does not tell you much, and the dynamics are only recorded on a run activity on a Garmin watch, which is exactly the thing you are not wearing on match day. If you do structured running sessions in pre-season and own a Forerunner or Fenix, you will use them. Otherwise, do not pay for them.

Battery and Upkeep

Both run on a coin cell you replace yourself, roughly once a year. The H10 takes a CR2025 and claims up to 400 hours; Polar is specific that a CR2032 will damage it, so buy the right one. The HRM-Pro Plus takes the more common CR2032 and Garmin quotes about a year at an hour a day, which is the same ballpark. The practical difference is the door: Garmin’s opens by hand with no tools, Polar’s needs a coin to twist the cover, and the cover’s seal is where H10s eventually start to leak if you are careless with it.

Both straps unclip from the sensor pod and go in the wash. Rinse the strap after every session regardless. Salt build-up on the electrodes is the second most common cause of flaky readings after dry skin, and a strap that is never rinsed smells like a goalkeeper’s gloves inside a month.

Neither is rechargeable. If that matters to you, that is what the newer Garmin HRM 600 is for, and I cover it below.

Fit, Comfort and Youth Players

The H10 comes in two strap sizes, and the small one matters: XS-S fits a 62 to 82 cm chest, which covers most players from about age ten up. The strap has silicone dots on the inside that grip the skin, so it stays put under a shirt through a full match. The sensor pod sits central on the sternum and is small enough to forget.

The HRM-Pro Plus comes with one adjustable strap that fits most adults and larger teenagers. For a small youth player, check the minimum chest size before buying; if it is going to be loose, it is going to read badly, and the H10’s small strap is the safer order. On adults both are comfortable enough that the only reminder you are wearing one is unclipping it afterwards.

One soccer-specific note: both pods sit exactly where an elbow or a ball to the chest lands. Neither has broken on me, and both brands sell replacement straps separately, but if your player is a keeper who takes shots to the chest for a living, that is an argument for the cheaper strap.

If You Have, or Want, a GPS Vest

GPS trackers measure the work a player does (distance, sprints, accelerations). A heart-rate strap measures what that work costs the body. Put together, you get the external-versus-internal load picture that professional clubs actually coach from, and the consumer trackers can do it too, with the right strap.

• Catapult publishes a compatibility list for its trackers and names the Polar coded straps, including the H10, by model.
• STATSports Apex Athlete Series treats heart rate as an optional add-on and pairs with Bluetooth heart-rate monitors, its own magnetic strap first; any Bluetooth strap should work, but STATSports does not publish a brand list.
• Playermaker is a boot sensor with no heart-rate input at all, so the choice of strap is about your watch, not the tracker. See Playermaker vs GPS trackers for how those differ.

The pattern is clear enough: when a tracker company names a strap, it names Polar. If a GPS vest is in your future, the H10 is the lower-risk purchase.

What About the Garmin HRM 600?

Garmin now sells the HRM 600 above the HRM-Pro Plus at $169.99. It keeps the ECG sensor and running dynamics, adds a rechargeable battery that lasts about two months per charge, heart-rate variability, and a “step speed loss” running metric, and it has the same 5 ATM rating and standalone recording. The HRM-Pro Plus is still sold and has been getting cheaper since the 600 arrived.

For soccer, the 600 changes nothing in the argument above. It is a better running strap for a Garmin owner who wants to stop buying coin cells. It is not a better strap for a player whose watch is in the bag on Saturday, and it is $65 more than the H10 for the same heart-rate number.

Which One Should You Buy?

Buy the Polar H10 if…

You do not own a Garmin watch, or you own one but also use a phone app, a gym, a Peloton or a Zwift setup. You are buying for a youth player and need the small strap. You own or are considering a Catapult or STATSports vest. You want to spend the least for the same number. That is most readers of this site. Check the Polar H10 price here.

Buy the Garmin HRM-Pro Plus if…

You already wear a Forerunner, Fenix, Venu or Instinct and want the strap to disappear into that system: start the activity on the watch, leave the watch in the bag, have the match heart rate appear in Garmin Connect afterwards with no app juggling. You do pre-season running blocks and will look at the dynamics. Check the HRM-Pro Plus price here, and read the full HRM-Pro Plus review first.

Buy neither if…

You only want a rough idea of effort in occasional training and will never look at a zone. Your watch’s wrist sensor is fine for that, and the $90 is better spent on a decent pair of shin guards or headgear.

Frequently Asked Questions

Is the Polar H10 more accurate than the Garmin HRM-Pro Plus?
On paper the H10 has the published validation and Garmin does not. In use they track each other within a beat or two. Fit and a wet strap matter far more than which brand you chose.

Does the Polar H10 work with a Garmin watch?
Yes, over ANT+ or Bluetooth, and it pairs like any other strap. You lose Garmin’s running dynamics and the automatic gap-sync, which only the Garmin straps provide.

Can I wear a heart-rate strap in a soccer match?
Generally yes. Law 4 permits electronic performance and tracking equipment where the competition allows it, and a strap under the shirt is not something referees check. A watch on the wrist is not permitted. Check your league’s rules if in doubt.

Can either strap record a match without a watch or phone?
Both. The H10 stores one session of up to 30 hours, started from the Polar Beat app. The HRM-Pro Plus stores heart rate whenever it is out of range of your Garmin watch and syncs it back automatically.

Which strap fits a child?
The Polar H10 in the XS-S strap, which fits a 62 to 82 cm chest. The HRM-Pro Plus has one adjustable strap sized for adults and larger teenagers.

Is the Polar H9 good enough instead?
For heart rate only, yes: it is the same ECG sensor family at a lower price, with Bluetooth to one device, ANT+ and 5 kHz, but no internal memory. If you never need to record without a phone or watch, it saves money. The H10 is worth the extra for the memory and the second Bluetooth connection.

The Verdict

The Polar H10 is the chest strap for soccer. It costs less, it connects to more, it records a match on its own, and it is the strap the tracker companies name. For nine players out of ten that is the end of the comparison.

The tenth player wears a Garmin watch every day, and for them the HRM-Pro Plus is the better buy, not because it measures heart rate any better, but because it makes the match-day workflow disappear. Pay for that only if you will use it.

Whichever you choose, wet the strap before you put it on, rinse it after you take it off, and sync before the next game. Do those three things and either strap will give you a season of numbers you can trust.

Andrew Murray

I discovered soccer as a U-6 coach. I love soccer, futsal on the weekends in a men’s league. I am now living in Portugal (and playing futsal!)

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