Fitness band

PolarPolar Loop

Name: Polar Loop
Brand: Polar
Price: 199.99 USD

Screen-free band with sleep and recovery scores and no subscription

By Porsche Ma Facts checked Oct 13, 2026

Source-based analysis, not hands-on testing. Our method

Cofounder of Superhuman Chambers · About the author. General information, not medical advice. No independent clinical review is claimed.

The verdict

Polar Loop gives you sleep, HRV and recovery scores in a screen-free band for $199.99. Polar says no feature needs a subscription, and it rates the battery at up to 8 days. The catch is what's missing: there's no GPS of its own, and Polar lists no skin temperature or blood oxygen sensing.

The trade-off

You need your phone for GPS, and Polar lists no skin temperature or blood oxygen sensing.

Polar Loop, manufacturer product image — Photo: Polar.Source ↗

Model reviewed: Night Black with the SoftWeave Textile band (S–L)

$199.99

US price, checked Oct 13, 2026

Check price at Polar

No affiliate commission on this link. Check the exact variant before buying.

About this price

Polar's US page lists the SoftWeave Textile bundle in Night Black (S–L) at $199.99. The Magnetic Silicone bundle is the same price. No sale or strike-through price was shown, and a 10% newsletter sign-up offer isn't counted. The price is before tax. Polar lists free shipping and delivery in 5–7 business days. Extra bands cost $29.90 to $49.99.

A GOOD FIT FOR

You want nightly recovery and sleep scores from a band with no screen and no monthly fee.

You want sleep, HRV and recovery scores without paying a monthly fee
You'd rather not wear a screen and are happy checking your data in the Polar Flow app
You want to charge about once a week (Polar rates it at up to 8 days)
You swim and want heart rate and calories logged

THINK TWICE IF

You want GPS without carrying a phone, since Loop has none built in
You want stroke count or distance when you swim
You want skin temperature or blood oxygen readings, which Polar doesn't list
You want to pair it as a heart rate sensor with gym equipment or another app
You need a medical device: Polar says Loop isn't for medical purposes

What still needs checking

Charging time and charger power draw
Minimum phone and operating system versions for the Polar Flow app
What the SoftWeave textile is made of
Independent, peer-reviewed accuracy data for Loop's heart rate, HRV and sleep tracking
Whether the 30-day return window starts at purchase or delivery
How long refunds take

The practical details.

Specifications for Polar Loop
Exact variant	Night Black with the SoftWeave Textile band (S–L)
Battery life	Up to 8 days per charge from a 170 mAh lithium-polymer battery, according to Polar. It has 4 weeks of onboard memory. Polar doesn't state a charging time.
Sensors	Polar's Precision Prime optical heart rate sensor (OHR Gen 3.5). There's no built-in GPS. Route, pace and distance come from your phone's GPS when you record a session in the Flow app. The page doesn't mention skin temperature, blood oxygen or ECG.
Sleep and recovery	Nightly Recharge, Nightly HRV, Sleep Plus Stages, SleepWise and Daily Alertness. Polar says Nightly Recharge combines your sleep score with heart rate, HRV and breathing data to calculate overnight recovery. Activity tracking, Training Load Pro and automatic training detection are also included.
Subscription	None. Polar says there are no monthly fees and no locked features. It also offers optional free trials: 60 days of Strava and 30 days of TrainingPeaks Premium. Clue Plus is free for 3 months.
Display	None. Polar calls Loop a screen-free band, and you see your data in the Polar Flow app.
Water resistance	WR30, which Polar says is suitable for swimming. In the water it tracks heart rate and calories, but not stroke count or distance.
Connectivity	Bluetooth LE with one connection, reserved for syncing with Polar Flow. Loop can't act as a heart rate sensor for other devices. Data reaches Strava, TrainingPeaks, Apple Health and Google Health through your Polar Flow account.
Dimensions	Polar lists Loop at 1.1 in wide, 1.7 in high and 0.4 in thick. It weighs 1 oz with the band and 0.7 oz without. Polar's size chart says the package includes two bands. The S/M fits 135–190 mm wrists and the M/L fits 160–230 mm.
Materials	Polar lists a stainless steel case and bezel. The band is SoftWeave textile in Night Black. Polar doesn't say what the textile is made of.

Before you buy

InstallationNo installation

No installation. You set it up with the Polar Flow app. The product page doesn't list minimum phone or operating system versions. In the box are the Loop, the SoftWeave bands, a buckle and a Polar Charge 2.0 charging cable. Polar lists the cable as proprietary USB-C. No power adapter is listed.

WarrantyPolar Electro, Inc

Polar Electro, Inc. issues the guarantee for products sold in the US and Canada. It covers the original buyer against defects for two years from the date of purchase. Silicone or plastic wristbands get one year. Textile and leather wristbands aren't covered, so the SoftWeave bands have no guarantee. Normal battery wear, accidents, misuse and cracked or scratched cases are excluded. Polar's returns page says battery replacement is covered for the first six months. Covered products are repaired or replaced, and you'll need the receipt as proof of purchase.

ReturnsPolar's online store takes returns within 30 days

Polar's online store takes returns within 30 days. Items must be unused, in good condition and in the original packaging. You send them with a completed return form and a copy of the packing slip. Shipping costs are refunded only for damaged or defective products. The policy doesn't mention a restocking fee or say how long refunds take. It also doesn't say whether the 30 days start at purchase or delivery.

More about this assessment

Polar Loop is a screen-free fitness band for sleep, recovery and activity tracking, and you see your data in the Polar Flow app. The Night Black SoftWeave Textile bundle costs $199.99, and Polar says there are no monthly fees or locked features. Battery life is rated at up to 8 days. There's no GPS of its own, and Polar lists no skin temperature or blood oxygen sensing. The device has a two-year guarantee, but the SoftWeave bands aren't covered. Polar says Loop isn't for medical purposes, so treat its scores as wellness estimates.

Strengths on paper

$199.99 with no monthly fees or locked features, according to Polar
Up to 8 days per charge and 4 weeks of onboard memory
Nightly Recharge, Nightly HRV, sleep stages and Daily Alertness are all included
Light at 1 oz with the band, with a stainless steel case and bezel
Two-year guarantee on the device itself
Syncs to Apple Health, Google Health, Strava and TrainingPeaks through Polar Flow

Limitations

No screen, so you check everything in the app
No built-in GPS: outdoor routes need your phone and the Flow app
Polar lists no skin temperature, blood oxygen or ECG sensing
Polar's guarantee doesn't cover the SoftWeave bands or normal battery wear
It can't broadcast heart rate to other devices
The charging cable is proprietary
Return shipping is refunded only for damaged or defective items

What it costs to own.

Adjust the assumptions for your use. Missing costs stay unknown.

PLAN YOUR OWNERSHIP COSTS

What will it cost to own?

Change the assumptions to fit your use. Leave an unknown cost blank. Add water, subscriptions, cleaning, shipping and taxes if they apply. Use average operating power, not the maximum rating.

Purchase price ($)Installation / accessories ($)Annual consumables ($)Average operating power (W)Hours per dayAnnual other costs ($)Electricity ($/kWh)Years

3-year known subtotal

$199.99

Incomplete: energy use. This is not the full ownership cost.

Energy component: Unknown

Purchase + installation + years × (annual consumables + annual other) + watts/1000 × hours/day × 365 × years × $/kWh. Annualized allowances, not an exact replacement schedule. Excludes taxes, shipping, finance and resale unless entered.

Replacement parts & cost assumptions

No scheduled consumable is listed. That does not mean zero maintenance or repair costs.

The purchase price is $199.99 before tax, Polar's US price for the Night Black SoftWeave Textile bundle. It includes the SoftWeave bands, a buckle and the charging cable, and shipping is free. With no required fee or part, the three-year estimate is $199.99 plus charging energy, which is unknown.
Annual other costs are $0 because Polar says there are no monthly fees and no locked features. The Strava, TrainingPeaks and Clue trials are optional and aren't counted.
Annual consumables are $0 because Polar lists no required parts or refills. Spare bands cost $29.90 to $49.99 if you want one, and they aren't counted. Neither are battery wear or repairs.
Polar doesn't state the charger's power draw or the charging time, so energy is unknown. At up to 8 days per charge, you'd charge about once a week.

Evidence & sources.

How accurate are sleep trackers? Our evidence review grades the research as Moderate. That grade is about the claim, not about this product.

Manufacturer claimPolar says Loop isn't for medical purposes. It says not to use Loop for measurements that need professional or industrial precision. The product page doesn't mention FDA clearance for any feature.¹ With no cleared feature, treat the sleep, HRV and recovery scores as wellness estimates, not medical measurements.
Manufacturer claimPolar says Nightly Recharge combines your sleep score with heart rate, HRV and breathing data to calculate overnight recovery. Loop uses Precision Prime, which Polar calls its most cost- and weight-efficient optical sensor platform. Polar says Loop relies on the same heart-rate algorithms as its premium devices.¹ The page says 'Lab-tested. Peer-reviewed. Real-world proven.' No independent study of Loop's accuracy was reviewed.

Sources (3)