EricaVerified purchaseSep 2026
Great value
Works great. Connected to my wahoo right away. Validated it’s accuracy on other devices, too.
✓ 12-month no-questions warranty✓ IPX67 sweat & waterproof✓ Athlete owned, Park City UT
Armband Heart Rate Monitor
Rechargeable optical · ANT+ & Bluetooth · Auto-wear
Rechargeable optical heart rate armband with auto-wear detection and dual ANT+ and Bluetooth, for people who hate chest straps.
$74.99
Auto-wear detection, no buttons
ANT+ & Bluetooth, 3 devices at once
Rechargeable, up to 38 h
Ultralight medical-grade silicone
🔒 Guaranteed safe & secure checkout
Product details
LOOKING FOR AN ABSURDLY RELIABLE ANT+ & BLUETOOTH HEART RATE MONITOR WITH CHEST STRAP?
We built this heart rate monitor for working out, cyclists, endurance and fitness athletes. After nearly a year of rigorous field testing & lots of sweaty hours of training later - we feel confident that we have created one of the most reliable, comfortable & best value heart rate monitors on the market.
- ⚡ATHLETE TESTED RELIABILITY: Tested by endurance athletes for class leading ANT+ Heart Rate Monitor connectivity with dual-band Bluetooth 4.0 & ANT+ protocol. Powr Labs Arm band Heart Rate Monitors & forearm heart rate monitor are absurdly reliable.
- ⚡BROAD COMPATIBILITY: Works real-time with HRV monitor for both smartphones & GPS devices compatible with Bluetooth and ANT+. Two straps included (S/M & L/XL) with the armband heartrate monitor & sized to fit most arms.
- ⚡WIRELESS CHARGING, LONG BATTERY LIFE & WATERPROOF: Our wristband heart rate monitor arm band is IPX67 sweat & water-proof & maintains up to 60 hour battery life. Recharging of the heart monitor battery is easy with the included wireless dock.
- ⚡UNRIVALED WARRANTY: Athlete owned & USA based, we have a NO questions asked warranty for 12 months on your heart rhythm monitor. If you ever have an issue with your bluetooth HR monitor or simply want to return the product, please let us know.
- ⚡***PAIRING INSTRUCTIONS***: To pair, press the logo button on the unit while it is attached to your arm. Green indicates paired; purple indicates not paired; red indicates low battery. Apps we recommend: Elite HRV, iCardio, Heart Graph for all types of exercise; Wahoo, Garmin, Polar Beat, Zwift, Peloton for cycling; Runtastic for running. Reach out if you ever have compatibility questions!
WHY CHOOSE A POWR LABS ™ HEART RATE MONITORS OVER OTHERS?
- ATHLETE FOCUSED: We are dedicated cyclists & endurance athletes that know the pains, pitfalls and issues with heart rate monitors. We built our heart rate monitor with YOU in mind.
- INSANE WARRANTY: You get a no questions asked warranty for the first 12 months. Beat that:)
- BEST BANG FOR THE $:Class leading connectivity, durability and warranty. All for less than the big guys. Yes, please!
Specifications
| Sensor | Optical heart rate with auto-wear detection |
|---|---|
| Connectivity | Dual-band Bluetooth and ANT+, up to 3 devices at once |
| Battery | Rechargeable lithium-ion, 38+ hours per charge, magnetic charger included |
| Water rating | IPX67 sweat and waterproof |
| Sensor module | 1.6 x 1.12 x 0.29 in (40.6 x 28.6 x 7.3 mm), 20 g |
| Strap | Soft-touch medical-grade silicone, washable, forearm or bicep fit |
| Model | HW805 |
| Compatible with | Peloton, Zwift, Strava, Garmin Connect, Wahoo, Apple Health, Google Fit, Polar Beat, DDP Yoga and 200+ apps |
| Warranty | 12 months, no questions asked |
What's in the box
- Armband heart rate monitor (sensor module + strap)
- Magnetic charging cable
- Instruction manual
Shipping, returns & warranty
Ships from the USA within 1–2 business days. 30-day returns and a 12-month no-questions-asked warranty on every product. Shipping policy · Refund & warranty
Pairing & support
Step-by-step pairing guides for Peloton, Zwift, Strava, Garmin, Wahoo and Apple Watch, plus troubleshooting. Open the guides or email support@powr-labs.com.
Why athletes pick it
Built for the way you train
Put it on and go
Auto-wear detection switches the armband on the moment it touches your skin. No buttons, no pairing ritual, and it broadcasts to up to 3 devices at once over Bluetooth and ANT+.
Accuracy that holds up for months
An advanced optical sensor delivers consistent, precise heart rate workout after workout, from Zone 2 recovery to max-effort intervals, without random drift or spikes.
So light you forget it's there
A soft-touch, medical-grade silicone strap sits flush on your forearm or bicep without bouncing, pinching or sliding. No chest-strap chafe, even on marathon sessions.
Compatibility
Works with the apps and devices you already use
Standard ANT+ and Bluetooth Smart (BLE) heart rate profiles mean it pairs like any Polar, Garmin or Wahoo strap, with 400+ apps and devices. Here are the ones our customers use most.
Brand names belong to their owners; Powr Labs is not affiliated with them. Takes about two minutes to pair. Step-by-step pairing guides →
Chest strap or armband?
Two ways to track. One that's right for you.
Both use the same dual-band radio and carry the same warranty. The difference is where you wear it.
| Feature |
Chest Heart Rate Monitor
$45.00
|
Armband Heart Rate Monitor
$74.99
|
|---|---|---|
| Best for | Cycling, running, HIIT, anyone who wants the most accurate reading | Gym classes, rowing, swimming laps, anyone who finds chest straps uncomfortable |
| Sensor type | ECG electrodes (reads the heart's electrical signal) | Optical (reads blood flow in the forearm) |
| Accuracy | Gold standard, instant response to intervals | Very close, slight lag on sudden sprints |
| Connectivity | ANT+ and Bluetooth, up to 3 devices at once | ANT+ and Bluetooth, up to 3 devices at once |
| Battery | CR2032 coin cell, replaced free for 12 months | Rechargeable, up to 38 hours per charge |
| Water rating | IPX67, sweat and submersion to 5 ft | Sweat and water resistant, pool safe |
| Fit | Adjustable 26–38 in chest strap | Elastic band, forearm or upper arm |
| Warranty | 12 months, no questions asked | 12 months, no questions asked |
| Shop chest | Shop armband |
Not sure? Most cyclists and runners pick the chest strap. If you hate the feeling of a chest strap, pick the armband. Either way you get the same connection and the same warranty.
Reviews
What athletes say
4.0
915 ratings
Verified purchase reviews of this product, shown unedited.
- 5 star59%
- 4 star12%
- 3 star7%
- 2 star5%
- 1 star17%
Jake P.Verified purchaseAug 2026
Much better than my watch HR
Seems to track very well. Much more accurate than my watch!
lkmVerified purchaseAug 2026
Quality heart rate armband
Purchase for our teen that is a competitive athlete with thin arms. We have had a hard time finding heart rate bands that can adjust down small enough. This fits great, works well, and has been used daily for a few months now. The band washes well, is comfortable and has retained its shape and structure so far. Paired easily with a Garmin and Apple Watch and seems pretty accurate and doesn’t lose contact.
Chris N.Verified purchaseAug 2026
Good value for the price
Very happy with this monitor! Aside from the product number being very small (harder to read), it was easy to connect to my gym's portal. Doesn't drop its signal, pretty accurate HR measurement. A good value for the price.
nicholas L.Verified purchaseJul 2026
Works as expected good value for the money.
I have only used it twice but can say it is accurate and syncs easily with my peloton bike, and my phone up to this point. Comfortable to wear and no reading drops or jumps due to sensor confusion. Stays snug but does not require to be so tight that it is bothersome. Not a fan of the color but since I only use it to train that does not really matter. Charges fast and set up and app they have also work easy to track non equipment workouts as well. Syncs with Apple health as well so my data is stored in one place. I think for the cost it’s a good value and since my wahoo tickr was starting to give differing readings and would go from one rate and drop to another way below out of no where I needed a new one anyways. I’m pleased so far but we will see and if this turns out to only be beginners luck I’ll come back and address that as well.
WendyVerified purchaseApr 2026
Fantastic heart rate monitor
Update: I still love this arm heart monitor but you must charge the battery every 2 weeks (used daily for 1 hour) even when it says it still has plenty (over 50%) or it will lose the bluetooth connection and will NOT reconnect! Once charged, it works great.
I had problems with the Heartool app as I am 70 years old and the zone heart rate values were WAY off. I could not get it to change. Then I tried while wearing the armband and I was easily able to change them to match my age. This arm band works great and connected to my iphone without any problems. I mainly use a recumbent bike and kettlebell/weights/resistance bands so I can easily monitor my heart rate through the app while I’m exercising. The app has all my heart rate info by date and total minutes then breaks it down by zones. It works great for me. I haven’t tried any other apps with it. If you are a senior and working out at home, you will love this app. Very reasonable price compared to several others I considered. I love it!
JeffVerified purchaseMar 2026
Works well with the Peloton treadmill with some caveats.
The Powr Labs Rechargeable Heart Rate Armband works well with my Peloton treadmill. I like that it automatically turns on when you put it on and turns off when you remove it. No buttons to push. However, some quick notes. First, if the armband does not link via bluetooth to your device, and you have your cell phone (in my case my iPhone) near you, you will need to remember to turn off bluetooth on your other device for the armband to link to your exercise equipment. Also, in order for the armband to stay active and not auto-turn off, it must be continually kept in contact with the skin on your arm. I found that if the armband moves so contact with my arm is lost, the armband will turn off during exercise. One final minor nit. Battery life seems to be limited. My previous heart rate monitor, a Wahoo, could last me 10-12 days on a single charge. The Powr Labs unit only seems to last 3-4 days. Overall, I have so far found the Powr Labs armband to be reliable and accurate during my workouts.
Sparky I.Verified purchaseMar 2023
Stopped working on my Peloton Bike
March 10, 2023To all I have revised my previous Amazon survey and review on my PowrLabs HRM. I am a happy customer. I have received overwhelming and very helpful technical support from the PowrLabs tech team. The most surprising aspect of this review process from previous unfavorable review was the very understanding and most accommodating support from the Founder and Owner of the company. I experienced the most gracious, top to bottom, technical support I ever received. My PowrLabs HRM is successfully paired and working as expected. It's the most cost-effective device of its kind. I am a happy customer.November 2022, I received my Powrlab Heart Rate Monitor (wrist, arms) version. I was able to easily setup the device and configure to my Peloton Exercise Bike. As of last week, it stopped working and a brief hiatus from my Peloton Bike exercises, I was no longer able to view the Powrlabs heart monitor rate displayed on my Peloton bike table nor my TV. Today, I called Peloton Tech Support, after many logistical and basic troubleshooting steps, there was No change. I would return the device, but I am just passed my return day “window” date January 31, 2023.I have updated my firmware a
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Questions
Before you buy
Does it work with Peloton?
Yes. It connects to the Peloton Bike, Bike+, Tread and the Peloton app over Bluetooth. Because it is dual-band (Bluetooth + ANT+) it can broadcast to your Peloton and another device, like a watch or bike computer, at the same time.
How do I turn it on and pair it?
There is no power button. Auto-wear detection switches the armband on when it touches your skin. Then open the sensor or device menu in your app, watch or bike computer and select Powr Labs. Pair once and it reconnects automatically. Step-by-step instructions are on our armband pairing page.
How many devices can it connect to at once?
Up to 3. For example, your bike computer over ANT+ plus your phone app and smartwatch over Bluetooth, with no dropped connections.
How long does the battery last and how do I charge it?
It is rechargeable and a full charge covers 38+ hours of training, so most athletes charge it every few weeks. Charge it with the included magnetic charging cable. A spare charging dock is sold separately.
Do I wear it on the forearm or the bicep?
Either. The flex-fit strap works on the forearm or upper arm. Wear it snug enough that it does not slide, with the sensor flat against bare skin, for the most accurate readings.
Is it waterproof?
It is IPX67 rated, so sweat, rain and rinsing under the tap are no problem. It is built for sweat and weather rather than swimming, since Bluetooth and ANT+ signals do not travel through water.
Can I wash the strap?
Yes. Slide the sensor module out, hand wash the strap with mild soap, and let it air dry. Replacement straps are available if you want one on the sensor and one drying.
What is the warranty and return policy?
Every Powr Labs product carries a 12-month no-questions-asked warranty and 30-day returns, backed by USA-based support in Park City, Utah.
Specifications
The details
| Sensor | Optical heart rate with auto-wear detection |
|---|---|
| Connectivity | Dual-band Bluetooth and ANT+, up to 3 devices at once |
| Battery | Rechargeable lithium-ion, 38+ hours per charge, magnetic charger included |
| Water rating | IPX67 sweat and waterproof |
| Sensor module | 1.6 x 1.12 x 0.29 in (40.6 x 28.6 x 7.3 mm), 20 g |
| Strap | Soft-touch medical-grade silicone, washable, forearm or bicep fit |
| Model | HW805 |
| Compatible with | Peloton, Zwift, Strava, Garmin Connect, Wahoo, Apple Health, Google Fit, Polar Beat, DDP Yoga and 200+ apps |
| Warranty | 12 months, no questions asked |
What's in the box
- Armband heart rate monitor (sensor module + strap)
- Magnetic charging cable
- Instruction manual
Need a longer strap or a spare? Replacement straps are available and fit most chest heart rate sensors.