Herz P1 HR Chest Strap Review: An Accurate Heart Rate Monitor for Every App You Use
- What it is
- Chest strap heart rate monitor
- Accuracy
- ±1 bpm, from 30 to 240 bpm
- Tracks
- Heart rate, HRV, calories, steps
- Connections
- Bluetooth 5.0 (60 m) and ANT+ (30 m)
- Memory
- Up to 48 hours without your phone
- Water
- IP67
- Size
- 11 g sensor, strap fits 65 to 95 cm chest
- Battery
- Rechargeable, cable included
- Price
- From $63.99 per strap in the US, free shipping
- Guarantee
- 90 days money back
Official order page, opens in a new tab. Free shipping and a 90-day money-back guarantee.
Why a chest strap beats your watch for heart rate
You start an interval, push hard for 60 seconds, and your watch says your heart rate is 112. Then it jumps to 168 two minutes later, after you have already slowed down. If you've ever trained by heart rate zones with a wrist sensor, you know the feeling.
The reason is how the measurement works. A watch shines light into the skin of your wrist and estimates your pulse from blood flow, which gets noisy when your wrist flexes, grips a bar or swings. A chest strap sits right over your heart and picks up its electrical signal, the same principle as an ECG. That is why serious runners and cyclists still wear one, even when they own an expensive watch.
The Herz P1 is that kind of strap. It reads from 30 to 240 beats per minute with a listed accuracy of plus or minus 1 bpm, and it updates in real time, mid-sprint or mid-set.
- ✓ Reads at the chest, not the wrist
- ✓ Bluetooth 5.0 and ANT+ at the same time
- ✓ HRV, calories and steps on top of heart rate
- ✓ 48 hours of memory, so your phone can stay home
- ✓ IP67, sweat and rain proof
- ✓ Rechargeable, no coin batteries to hunt for
- ✓ 90-day money-back guarantee
Does it work with Garmin, Apple Watch, Peloton, Zwift and Strava?
This is the question most people searching for a chest strap actually have, and it is where the Herz P1 is strongest. It transmits on two standards at once:
- ANT+, up to 30 m: the standard Garmin watches, Garmin and Wahoo bike computers and most gym equipment use for heart rate sensors.
- Bluetooth 5.0, up to 60 m: what iPhone and Android apps, Apple Watch, Peloton and Zwift use.
Because both run together, you can record on your watch while Zwift shows your heart rate on screen. The seller lists Strava, Wahoo and Polar Beat as compatible apps, plus its own free X-FITNESS app for iPhone and Android.
HRV chest strap: train hard on the right days
The Herz P1 also measures heart rate variability, the small changes in time between heartbeats. Many athletes check HRV each morning to decide whether to push or take it easy, and a chest strap gives a cleaner reading than a wrist sensor. It counts calories and steps too, so one sensor covers a full training day.
A heart rate monitor for zone 2 training
Zone 2 training only works if you actually stay in zone 2, which is a narrow range. A few beats off and you are training a different system. That is where wrist readings let people down, and where a strap that updates instantly helps you hold the pace that keeps you in the zone, on the bike, the treadmill or a slow outdoor run.
For running, cycling and the gym
The sensor weighs 11 grams and the soft strap adjusts from 65 to 95 cm, so it stays put on long runs without slipping or rubbing. Cyclists can pair it with a bike computer over ANT+ and a phone over Bluetooth at the same time. With 48 hours of on-board memory, you can leave the phone in the locker during a gym session and sync afterwards.
The strap sits comfortably under a sports bra, which makes it an easy chest strap heart rate monitor for women too.
IP67 and easy to clean
The sensor is IP67 rated, so sweat, rain and rinsing under the tap are no problem. Unclip the pod, wash the strap, and it is ready for the next session. Status lights show what it is doing at a glance: blue when it is reading, green when fully charged, red while charging or when the battery is low.
Check the Herz P1 chest strap price
Official order page, opens in a new tab. Free shipping and a 90-day money-back guarantee.
Herz P1 vs. Polar H10 and Garmin HRM straps
The Polar H10 and Garmin's HRM straps are the names most people compare first, and they are excellent sensors. The Herz P1 covers the same essentials for most training: chest-based readings, Bluetooth and ANT+ together, HRV and app compatibility. It adds a rechargeable battery and 48 hours of memory, and the 90-day guarantee gives you three months to compare it with whatever you use now.
| Herz P1 chest strap | Wrist watch sensor | Gym machine grips | |
|---|---|---|---|
| Reads from | Chest, electrical signal | Wrist, optical | Hands, when gripping |
| During sprints and lifts | Stays accurate | Often lags or drifts | Only while holding on |
| Bluetooth and ANT+ | Both at once | Varies | Varies |
| HRV | Yes | Some models | No |
| Phone-free memory | 48 hours | Varies | None |
Herz P1 chest strap price
Prices on the official order page in October 2026, shown in your local currency, with free shipping on every package.
| Country | 1 strap | 2 straps (each) | 3 straps (each) |
|---|---|---|---|
| United States | $79.99 | $71.99 | $63.99 |
| Canada | C$113.99 | C$102.99 | C$91.99 |
| United Kingdom | £60.99 | £54.99 | £48.99 |
| Australia | A$116.99 | A$104.99 | A$93.99 |
| New Zealand | NZ$140.99 | NZ$126.99 | NZ$112.99 |
It is a one-time purchase, with no subscription for the strap or its app. You can pay with PayPal, Apple Pay, Google Pay or card, and an optional protection plan is offered at checkout.
The 2-pack is the most popular choice for couples and training partners who share apps and plans. The 3-pack brings the price down the most and covers a family or a club.
Where to buy: Amazon, Decathlon, JB Hi-Fi or the official site?
Only one place sells the Herz P1 HR chest strap: its official website. Big retailers stock plenty of other chest straps, but not this one.
Listings that use the Herz P1 name on Amazon or other marketplaces aren't checked by the official seller. Buy there and you lose the 90-day guarantee, with no way to be sure the strap is genuine.
Can you trust the Herz P1?
Things we could verify ourselves before writing this page:
- The checkout shows the full price in US, Canadian, Australian or New Zealand dollars or in pounds, before you pay anything.
- The strap is a one-off purchase, with no subscription attached.
- PayPal, Apple Pay and Google Pay are accepted, each with its own buyer protection.
- The specifications are published in detail, down to the 11 g weight and the 65 to 95 cm strap range.
- There is a phone line, +1 (888) 256-4198, and an email address, support@herzp1.com, with replies promised within one business day.
90 days to put it to the test
Plenty of money-back guarantees stop at 30 days. Herz P1 gives you 90 days from delivery, which is a full training block. That is long enough to wear it on easy runs and hard intervals, pair it with every app and device you own, and compare its numbers against your watch week after week.
- ✓ 90 days from the day it arrives
- ✓ Covers every package, 1, 2 or 3 straps
- ✓ Refund or replacement, your call
- ✓ Return address confirmed within one business day
- ✓ Real support: +1 (888) 256-4198 or support@herzp1.com
If it isn't for you, email or call with your order number, send the strap back in its original condition, and you're covered. The only cost on your side is return shipping. Three months of training with it is the best review you can get, and it is your own.
Try the Herz P1 chest strap for 90 daysOfficial order page in your local currency. PayPal, Apple Pay, Google Pay or card.
Herz P1 chest strap: questions buyers ask
Is a chest strap more accurate than a smartwatch?
For heart rate during exercise, usually yes. A chest strap reads the electrical signal of your heart right at the chest, while a watch shines light through the skin of your wrist, which can drift when your arm is moving or gripping. The Herz P1 lists an accuracy of plus or minus 1 bpm across 30 to 240 bpm.
Does the Herz P1 chest strap work with Garmin?
Yes. The Herz P1 transmits on ANT+, the standard that Garmin watches and bike computers use for external heart rate sensors, with a range of up to 30 meters. It also broadcasts over Bluetooth 5.0.
Does the Herz P1 chest strap work with Apple Watch and iPhone?
The Herz P1 is compatible with iPhone and Android over Bluetooth 5.0. Apple Watch accepts standard Bluetooth heart rate sensors, so the strap can feed your heart rate into workouts while you train.
Does it work with Peloton, Zwift and Strava?
Yes. Peloton, Zwift and Strava all accept standard Bluetooth or ANT+ heart rate sensors, and the seller lists Strava, Wahoo and Polar Beat as compatible apps. Pair it once and it connects automatically on later workouts.
Does the Herz P1 measure HRV?
Yes. Besides heart rate, the Herz P1 tracks heart rate variability (HRV), calories burned and steps. HRV is popular for checking recovery and planning hard and easy training days.
Do I need my phone with me while training?
No. The Herz P1 stores up to 48 hours of heart rate data on the device, so you can run, ride or lift without your phone nearby and sync the session afterwards.
Is the Herz P1 chest strap waterproof?
The sensor is rated IP67, which protects it against sweat, rain and rinsing under the tap. The strap itself can be removed and washed.
Will it fit me?
The adjustable strap fits chest sizes from 65 to 95 cm (26 to 37 inches). The sensor pod weighs just 11 grams and measures 56 by 29 by 10 mm, so most people forget they are wearing it.
How much does the Herz P1 chest strap cost?
On the official site in October 2026, one strap cost $79.99 in the US, $113.99 in Canada, £60.99 in the UK, A$116.99 in Australia and NZ$140.99 in New Zealand. Two and three straps cost less per strap, with free shipping on every package.
Can I buy the Herz P1 on Amazon, Decathlon or JB Hi-Fi?
No. The Herz P1 HR chest strap is sold through its official website only. Chest straps on Amazon, Decathlon, JB Hi-Fi or other stores are different products or unverified listings, and they do not include the Herz P1 90-day money-back guarantee.
What is the Herz P1 return policy?
You have 90 days from delivery. Email support@herzp1.com or call +1 (888) 256-4198 with your order number, and support confirms the return address within one business day. Send the strap back in its original condition for a refund or replacement. Return shipping is paid by the buyer.
How this page was put together
We went through the official Herz P1 order page package by package and in each of the five currencies, read the seller's specifications and its returns terms, and checked which payment methods the checkout accepts. To decide what to cover, we looked at what runners, cyclists and gym-goers in the US, UK, Canada, Australia and New Zealand actually search for when they shop for a chest strap. We did not wear-test the strap, and the images come from the seller.
We earn a commission when you buy through our links. You pay the same price, and the commission does not decide what goes on this page.
Heart rate and HRV readings from consumer fitness devices are meant for training and general fitness, not for diagnosing or monitoring a medical condition.