Garmin Cirqa vs WHOOP: What the First Independent Tests Show

Back in May, I wrote about Garmin's upcoming screenless band as an interesting rumor. Now it's real — Garmin Cirqa is on the market, costs around $200, and independent reviewers have already put it through its paces. DC Rainmaker did a detailed accuracy test against WHOOP 5.0 (and others), and Tom's Guide followed up with their own testing using a chest strap. So I finally have real data instead of press releases. I haven't worn the Cirqa myself — I'll be honest about that and I'm pulling findings from these independent tests. But as someone who's worn WHOOP every day for over two years, I can tell you what this means for me and for you.

Two Screenless Bands, Two Completely Different Business Models

This is the fundamental difference no accuracy test will solve for you.

Garmin Cirqa you buy once for roughly $200. No monthly subscription. The Garmin Connect app is free, and the Garmin ecosystem (Connect IQ, watch integrations) is too. You buy it, wear it, done.

WHOOP works as a service. You pay a subscription (depending on membership length, it comes out to roughly $20–30 per month), and you get the hardware as part of that membership. In return, you get continuously updated coaching, AI features, deeper analytics, and regular hardware upgrades.

Which is better? It depends on how you think about money and what you want from a tracker:

• Cirqa makes sense if you don't want another monthly bill, you're already in the Garmin ecosystem, or you just want to "buy it and own it."
• WHOOP makes sense if you want deeper analytics, daily coaching (recovery scores, strain recommendations, sleep coaching) and you're fine paying for an ongoing service.

Neither is objectively wrong. They just fit different people.

Heart Rate Accuracy: Where They Match and Where They Don't

DC Rainmaker compared the Cirqa, WHOOP 5.0, Fitbit Air, Amazfit Helio, and Polar Loop against a reference chest strap. The results didn't surprise me, but a few details are worth noting.

Where they're comparable:

• Indoor cycling — both devices track the chest strap with minimal drift.
• Steady-state running — again, basically the same. Neither band wandered significantly.

Where they differ:

• High-intensity running intervals in cold weather — this is where Cirqa struggled. WHOOP was more consistent. That makes sense — optical sensors on the wrist generally don't like the combination of rapid heart rate swings, cold, and arm movement. WHOOP has historically worked on this (they use their own sensor with more LEDs), but even they have quirks in other situations.

Important context: DC Rainmaker concludes that Garmin, Fitbit, and WHOOP are roughly in the same accuracy category. Each has its own weak spots, but none is dramatically worse or better. Tom's Guide confirms this with their own Cirqa vs. chest strap test — during steady training, accuracy is solid.

So if you're choosing purely on heart rate accuracy, this won't be the deciding factor.

Step Counting: Both Measure, Both Overshoot

This is a minor thing, but I'll mention it because there's a myth floating around that WHOOP doesn't count steps. It does. And in a controlled test of 500 steps, here's how they landed:

• WHOOP: 530 steps (error +6%)
• Cirqa: 509 steps (error +1.8%)

Across full days, the difference between all tested devices is roughly 5–8%. In other words — no wrist tracker counts steps perfectly, and these error margins are normal. If you care about step count down to the unit, you need a dedicated pedometer, not a band.

Sleep: Surprisingly Even

Sleep is personally the main reason I wear WHOOP. How does Cirqa stack up?

According to DC Rainmaker, both devices nail sleep onset and wake time to within about a minute — if you wear them on your wrist. That's a solid result for both.

Interesting detail: when worn on the bicep (both allow this), sleep detection accuracy drops a bit for both. That makes sense — different skin contact, different blood flow, different movement mechanics on the arm.

What the test doesn't address — and what matters to me — is sleep analytics depth. Cirqa tells you when you fell asleep and when you woke up. WHOOP also gives you:

• Sleep performance score (how much of your need you actually got)
• Recommendations for when to go to bed
• Breakdown into stages (REM, deep sleep, light sleep) with context
• Trends across weeks and months

Garmin Connect obviously shows sleep stages and Body Battery too, but WHOOP's sleep coach is just more refined. Whether that's worth the monthly fee is up to you.

What Cirqa Can't Do (But WHOOP Can)

Accuracy is one thing. But screenless trackers differ mainly in what they do with the data they collect. Here's what WHOOP has that Cirqa doesn't:

• Recovery Score — a morning 0–100% number that tells you how recovered your body is. Cirqa has Body Battery, which is similar but calculated differently and, from my Garmin experience, less sensitive to alcohol and stress.
• Strain Coach — real-time guidance on how much load is optimal for today based on your recovery.
• AI features — WHOOP is rolling out AI coaching (Sleep Coach, Strain Coach with AI recommendations). Garmin has its own AI assistants, but nothing comparable in Cirqa yet.
• Heart Rate Variability (HRV) as a primary metric — WHOOP builds its whole philosophy around HRV. Garmin measures HRV too, but it's not as central to the Cirqa ecosystem.
• Community and teams — WHOOP has a robust team system where you share data with a training partner or coach.

What Cirqa Can Do (But WHOOP Can't)

To be fair:

• No subscription. You buy it and own it. Over two years, WHOOP costs you significantly more.
• Garmin ecosystem. If you already own Garmin watches, Cirqa plugs into Connect and fills in the data. WHOOP is a closed ecosystem.
• Lower entry price. $200 once vs. hundreds per year with WHOOP. For a lot of people, that's the deciding argument.
• Garmin Connect is a mature platform. Years of development, huge community, integration with Garmin watches and bike computers.

Who Should Buy What

Here's how I'd sum it up after reviewing the tests and two years wearing WHOOP:

Pick Cirqa if:

• You don't want to pay a subscription, period.
• You're already in the Garmin ecosystem and want a complementary sensor.
• You want solid tracking without deep analytics — just see the data and interpret it yourself.
• You run or bike mostly at steady effort.

Keep or get WHOOP if:

• You want someone to tell you what to do with the data — recovery scores, strain recommendations, sleep coaching.
• You train hard and need consistent measurement even during cold-weather intervals.
• You like HRV as your main metric and want to track it long-term with context.
• You're willing to pay for an ongoing service because it feels more valuable than a one-time purchase.

The Verdict: WHOOP Has Real Competition Now

Garmin Cirqa isn't a cheap knockoff. It's a thoughtful product from a company that's been making wearables for decades. On accuracy, it matches WHOOP — better in some scenarios, worse in others, overall in the same league.

The difference is what you're buying. With Cirqa, you're buying hardware. With WHOOP, you're buying a service — data, analytics, coaching, regular updates. Both are legitimate approaches.

For me personally, WHOOP stays because I like the coaching layer and the HRV-centric view of recovery. But if someone told me they didn't want to pay a subscription and just wanted to wear a screenless band, I'd point them to Cirqa without hesitation. It's a good product. And WHOOP having competition is good for all of us — maybe it'll push everyone to be better.