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Garmin Forerunner & Fenix: How to Get a $600 Fitness Watch Covered Pre-Tax

Garmin's running and adventure watches are premium, and when you buy one for a diagnosed condition or on a clinician's advice, your HSA or FSA can pay for it with pre-tax money. Five Garmins worth it, the new IRS rule for wearables, and what to keep on file.

GabiBy Gabi·September 25, 2026·9 min read
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A woman running along a city sidewalk at night, the LED flashlight on her Garmin Forerunner watch lighting the way
Image: Garmin

The quick answer

Can you buy a Garmin watch with your HSA or FSA?

Yes, when you buy it for a diagnosed condition or on a clinician's advice.

The IRS says a watch counts when you buy it primarily for a specific disease, such as your atrial fibrillation or high blood pressure. General fitness doesn't. The IRS doesn't require an LMN, but keep your diagnosis or clinician's note with the receipt.

Jump to the picks

Estimated pre-tax savings: about $20 to $330 per item, at a 30% combined tax rate.

The watches

Five Garmins, from trail watch to first running watch

Garmin's Forerunner and fēnix watches are built around long battery life: the Forerunner 970 runs up to 15 days as a smartwatch, and the fēnix 8 up to 16 days, or 47 hours of GPS tracking. The newer watches do more for your heart, too. Every one here alerts you to an abnormally high or low heart rate, and three carry Garmin's FDA-cleared ECG app, which records an ECG similar to a Lead I ECG and checks for signs of atrial fibrillation. They are premium watches, which is exactly where pre-tax HSA and FSA dollars help.

The picks come first. How your HSA or FSA can pay for one, and the new IRS rule that decides it, follows right after.

Garmin Forerunner® 970

Editor's pick

Garmin Forerunner® 970

Runners who want the ECG app on their training watch

The Forerunner 970 is the only Forerunner here with Garmin's ECG app, and it adds an LED flashlight, a titanium bezel and a sapphire lens to the full Forerunner training stack. Battery runs up to 15 days as a smartwatch and up to 26 hours with GPS. If your clinician wants you to capture an irregular rhythm when you feel it, this is the running watch that can.

Price

$750

Est. tax savings ~$225

View pick
Garmin fēnix® 8 – 47 mm, AMOLED
#1

Garmin fēnix® 8 – 47 mm, AMOLED

The splurge: trails, mountains and open water

The fēnix 8 is the tough one: rated 10 ATM with a 40-meter dive rating, multi-band GPS, a flashlight and up to 47 hours of GPS tracking. It carries the ECG app as well, so the toughest watch here gives up nothing on the health side.

Price

$1,100

Est. tax savings ~$330

Garmin Forerunner® 570 - 42mm
#2

Garmin Forerunner® 570 - 42mm

Mid-range: the training watch most runners need

The Forerunner 570 keeps the training features that matter, including training readiness, HRV status and multi-band GPS, in a 42 mm case that weighs 42 g. It skips the ECG app and the flashlight. Bought for a qualifying condition, it saves about $165 in tax.

Price

$550

Est. tax savings ~$165

Garmin Forerunner® 70
#3

Garmin Forerunner® 70

Budget: a first running watch

Garmin's 2026 entry Forerunner, on sale since May, with training readiness, HRV status and up to 13 days of battery at 40 g. It leaves out multi-band GPS, the ECG app and the flashlight, which keeps it simple for someone starting an exercise plan.

Price

$250

Est. tax savings ~$75

Garmin Venu® 4 – 45 mm
#4

Garmin Venu® 4 – 45 mm

Special purpose: health first, training second

The Venu 4 is Garmin's health-focused watch: the ECG app, fall detection, a flashlight and up to 12 days of battery, with a more everyday look than a Forerunner. If your reason for a watch is your heart rather than your pace, start here.

Price

$550

Est. tax savings ~$165

  • Garmin Forerunner® 970

    $750

    ECG app:
    Multi-band GPS:
    Flashlight:
    Battery, smartwatch:
    Up to 15 days
    Battery, GPS only:
    Up to 26 hours
    Key feature:
    ECG app on a training watch, titanium and sapphire
  • Garmin fēnix® 8 – 47 mm, AMOLED

    $1,100

    ECG app:
    Multi-band GPS:
    Flashlight:
    Battery, smartwatch:
    Up to 16 days
    Battery, GPS only:
    Up to 47 hours
    Key feature:
    10 ATM, 40 m dive rating, longest GPS battery
  • Garmin Forerunner® 570 - 42mm

    $550

    ECG app:
    –
    Multi-band GPS:
    Flashlight:
    –
    Battery, smartwatch:
    Up to 10 days
    Battery, GPS only:
    Up to 18 hours
    Key feature:
    Full training features in a 42 g case
  • Garmin Forerunner® 70

    $250

    ECG app:
    –
    Multi-band GPS:
    –
    Flashlight:
    –
    Battery, smartwatch:
    Up to 13 days
    Battery, GPS only:
    Up to 23 hours
    Key feature:
    Garmin's 2026 entry running watch
  • Garmin Venu® 4 – 45 mm

    $550

    ECG app:
    Multi-band GPS:
    Flashlight:
    Battery, smartwatch:
    Up to 12 days
    Battery, GPS only:
    Up to 20 hours
    Key feature:
    Health-first: ECG app and fall detection

The IRS rule

What makes a Garmin a medical expense

A watch is not a medical expense just because it tracks health data. In September 2026 the IRS spelled out when it is one (IRS FAQ, Q15): when you buy and use it "primarily to assist in the diagnosis, cure, mitigation, treatment, or prevention of a specific disease". The facts that count include "a recommendation from a medical practitioner; the individual's symptoms, diagnosis, abnormal test results, or risk factors".

In practice, that means a condition linked to what the watch tracks. A clinician may point to atrial fibrillation or a fast heart rate for the ECG app and heart-rate alerts; high blood pressure or heart failure for an exercise plan paced by heart rate; or obesity, type 2 diabetes or obstructive sleep apnea where activity and sleep data are part of the care plan. What doesn't count is the reason many of us want one: the IRS says "a generalized desire to monitor or improve health is not sufficient", and training for a marathon is exactly that.

If that describes you, you can buy any of these watches with your HSA or FSA card in the Caeli shop, and the IRS doesn't require an LMN. On a watch you find anywhere else, Caeli shows in real time whether your benefits cover it.

Your diagnosis or your clinician's advice is what makes a Garmin a medical expense, not the watch itself.

The same diagnosis

Four more tools the same care plan can use

A watch is rarely the whole plan, and each of these fills a gap it leaves. The EKG and the blood pressure monitor are medical devices, made for one medical purpose. The chest strap and the sleep band are wearables, so the same IRS test applies: Q15 says accessories count when they are bought primarily to serve the same medical purpose.

AliveCor KardiaMobile Medical-Grade 6L EKG Heart Monitor

AliveCor KardiaMobile Medical-Grade 6L EKG Heart Monitor

A six-lead EKG to share with your cardiologist

AliveCor's FDA-cleared, six-lead personal EKG takes a 30-second reading and reports normal sinus rhythm, atrial fibrillation, bradycardia or tachycardia. AliveCor says it records six times more heart data than a single-lead EKG or a smartwatch.

Price

$140

Est. tax savings ~$42

Omron Evolv Blood Pressure Monitor with Storage Case

Omron Evolv Blood Pressure Monitor with Storage Case

The blood pressure reading no watch takes

None of these watches measures blood pressure. The Evolv is a wireless upper-arm monitor with no tubes or hoses; it flags an irregular heartbeat and sends readings to the OMRON Connect app, where you can share them with your doctor.

Price

$66

Est. tax savings ~$20

Garmin HRM 200 Heart Rate Monitor - M to XL

Garmin HRM 200 Heart Rate Monitor - M to XL

Precise heart rate for a prescribed exercise plan

A chest strap that sends real-time heart rate and HRV to your watch, for workouts where staying in the right zone matters. The battery lasts up to 12 months at an hour a day, and the strap is machine washable.

Price

$80

Est. tax savings ~$24

Garmin Index™ Sleep Monitor

Garmin Index™ Sleep Monitor

Sleep data without wearing the watch to bed

Worn on the upper arm, it tracks sleep stages, HRV and breathing variations for up to 7 nights per charge, and its data syncs in Garmin Connect alongside your watch. Garmin labels these features not a medical device, so it supports a care plan rather than diagnosing anything.

Price

$170

Est. tax savings ~$51

The fine print

Keep the record

Keep your diagnosis or your clinician's recommendation with the itemized receipt; a Letter of Medical Necessity (LMN) that names your condition is the cleanest version of that record. When you buy through Caeli, the receipt side is taken care of: every Buy-with-Benefits purchase is vaulted, itemized and audit-ready.

Questions

Frequently asked

Do I need an LMN to buy a Garmin with my HSA or FSA?

The IRS doesn't require one. Its test is why you bought the watch: for a specific disease, or on a clinician's recommendation. An LMN is the clearest proof of that, and an FSA may ask for documentation when you file.

Can I use my HSA or FSA for a Garmin if I just want to train?

Not under the IRS rule, which says "a generalized desire to monitor or improve health is not sufficient." If your employer offers a Lifestyle Spending Account with a fitness category, that is the better route for a training watch.

Which conditions can make a Garmin a medical expense?

One that the watch's data relates to, such as atrial fibrillation, high blood pressure, heart failure, type 2 diabetes, obesity or obstructive sleep apnea, with a clinician who uses that data in your care. These are examples; your clinician decides what applies to you.

My HSA administrator says Garmin watches never qualify. Who's right?

With an HSA, the IRS rule is the test and the records are yours to keep. With an FSA, the plan decides what it covers within the IRS rules, so ask what it wants before you buy.

Do bands, chest straps and subscriptions count?

The IRS says accessories, add-ons and software subscriptions count only if they are bought primarily to serve the same medical purpose as the device. A chest strap for an exercise plan your clinician set can; a band bought for style would not.

Does the ECG app make any Garmin eligible?

No feature does that on its own; the reason you buy the watch does. The ECG app on the fēnix 8, Forerunner 970 and Venu 4 helps when your condition is a heart rhythm problem, and Garmin says it is only intended for adults 22 and over.

Can I use my FSA if I also have an HSA?

If you contribute to an HSA, your FSA is limited-purpose, covering dental and vision, so it won't pay for a watch. Use the HSA instead (IRS Publication 969).

Enjoy the miles.

Here is to early runs and long trail days with a watch that keeps an eye on your heart as well as your pace. If you are buying one for a diagnosed condition or on a clinician's advice, your HSA or FSA can help pay for it: browse the wearables and monitors, and let Caeli show you what your benefits cover.

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LMN handled at checkout · receipts vaulted automatically

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