Fitness Watches Compared: Features, Subscriptions, and What Each One Actually Costs

The sticker price is not the price. Whoop doesn't have a sticker price at all — you rent the hardware, $199 to $359 a year, forever. Oura sells you a $399 ring and then charges $5.99 a month to read it. Google just raised its annual health plan to $99.99. Garmin, Apple and Samsung are the three where you buy the hardware once and every health feature works with no subscription. Prices below are US retail as of August 17, 2026.

I went down this hole comparing Whoop bands to Garmins and realized the feature lists are the easy part. The part nobody puts on the box is what you're still paying in year three.

So here's the whole picture: what the features actually mean, what each device is genuinely good at, and what the real number is.

First, the Three Pricing Models

Every tracker on the market uses one of three business models, and knowing which one you're buying into matters more than any single feature.

1. Subscription only — you never own it. Whoop. There is no hardware price. You pay a membership — the annual plans run $199 to $359 — and the device comes with it. Stop paying and you have a bracelet that does nothing.

2. Hardware plus a required subscription. Oura. You buy the ring outright, then pay monthly to actually see your scores. Without the membership the ring still records, but the insights you bought it for are gone.

3. Hardware only, subscription optional. Garmin, Apple, Samsung, and — mostly — Google. You buy it, every health sensor works, and the subscription is an upsell you can ignore. Garmin's Connect+ is $6.99 a month or $69.99 a year, and every feature that was free before it launched is still free. Apple charges nothing for ECG, sleep score, or hypertension notifications; Fitness+ is a separate $9.99-a-month workout library that doesn't even require a watch. Samsung Health is free outright.

Google sits awkwardly in the middle. The hardware works without paying, but on May 19, 2026 the Fitbit app became Google Health, and the coaching layer — adaptive plans, the Gemini-powered health coach, deeper sleep analysis — moved behind Google Health Premium at $9.99 a month or $99.99 a year, up from Fitbit Premium's $79.99.

What the Features Actually Mean

Spec sheets are written to be intimidating. Here's the translation.

Optical heart rate — a green LED reading blood flow at your wrist or finger. Fine at rest and steady cardio, less reliable during weights and intervals where the wrist moves a lot. Every device here has it.

ECG — electrodes measuring actual electrical heart activity, used to screen for atrial fibrillation. This is a genuinely different sensor, not a software feature. Apple Watch Series 11 and Ultra 3, Garmin Forerunner 970, Samsung Watch9 and Ultra2, Pixel Watch, and Whoop MG have it. Apple Watch SE 3 and the cheaper Garmins do not.

HRV (heart rate variability) — the variation in time between beats, measured overnight. Higher generally means better recovered. It's the input for basically every "recovery" score on the market, and it's only useful compared against your own baseline. Your HRV versus someone else's means nothing.

Recovery / Readiness / Training Readiness — a single number combining HRV, resting heart rate, sleep, and recent training load. Whoop's Recovery, Oura's Readiness, Garmin's Training Readiness, Samsung's Energy Score, Google's Readiness. Same idea, different math, none of them auditable.

VO2 max estimate — a fitness ceiling estimated from your pace-versus-heart-rate relationship. Directional, not lab-accurate, but useful for watching a trend line over months.

Training load / cardio load — how much stress you've accumulated recently, and whether you're building, maintaining, or digging a hole. Garmin's version is the most developed of these by a wide margin.

Multi-band (dual-frequency) GPS — the watch listens on two satellite frequencies, L1 and L5, instead of one, which fixes the position drift you get in cities and under tree cover. If you run on roads or a track, single-band is fine. If you run trails or between tall buildings and care that your pace isn't garbage, this is the feature to pay for. Notably: Apple Watch Series 11 does not have it — only the Ultra 3 does.

SpO2 / pulse ox — blood oxygen saturation, mostly used for altitude and sleep-breathing signals. One quirk to know: on US Apple Watches the reading is taken by the watch but calculated and displayed on your paired iPhone in the Health app. That was a workaround for a patent fight Apple has since won — the ITC closed the matter in April 2026 — but as of now the iPhone-side flow is still how it works.

Skin or wrist temperature — nightly deviation from your baseline. Good for catching illness a day early and for cycle tracking. Poor as an actual thermometer.

Body composition (BIA) — Samsung sends a small current through your body to estimate body fat and muscle mass. It's the only watch here that does it. Treat it as a trend, not a DEXA scan.

Blood pressure features — the newest frontier and the most caveated. Whoop MG gives daily estimated ranges but needs calibration against a real cuff. Pixel Watch 5 added blood pressure patterns. Apple has hypertension notifications, which flag possible chronic high blood pressure over 30 days without ever giving you a number. None of these replace a cuff.

The Six Worth Considering

Whoop 5.0 and Whoop MG — the screenless recovery bet

Price: No hardware cost. Whoop One $199/yr, Peak $239/yr, Life $359/yr (Life is the one that ships the MG device).
Battery: 14+ days, and it charges from a slide-on pack while you wear it — so it never comes off.

Whoop is a deliberate refusal to be a watch. No screen, no notifications, no built-in GPS. It samples continuously, and every answer lives in the app: Recovery, Strain, Sleep, plus Healthspan, which turns your habits into a "Whoop Age." The MG tier adds ECG readings and daily blood pressure estimates. Through 2026 they've leaned hard into AI — you can ask it for a chart of your own trends and log habits by voice.

Best for: People who lift and want honest recovery data, and people who won't wear a watch to bed. The 14-day battery is the underrated feature here; a device you never take off collects data the others miss.

Skip it if: You want pace and distance on your wrist mid-run, or you don't like the idea of a device you can never stop paying for. Three years of Whoop Life is $1,077 — more than a Forerunner 970 and a Fitbit Air combined.

Garmin — the one that actually coaches your training

Price: Forerunner 70 $249.99 · Forerunner 170 $299.99 (Music $349.99) · Forerunner 570 $549.99 · Forerunner 970 $749.99. Fenix 8 Pro sits above all of it for outdoor and multi-day use.
Subscription: None required. Connect+ is $6.99/month or $69.99/year and optional.
Battery: 10 to 15 days depending on model.

Garmin's advantage isn't sensors, it's the training brain. Training readiness, daily suggested workouts, race predictors, running power, actual maps on the higher models. If your goal is a faster 5K or a first marathon, nothing else here is close.

The 2026 entry-level models changed the math. The Forerunner 70 at $249.99 and 170 at $299.99 both got AMOLED screens and the full physiology stack — training readiness, HRV, running dynamics, sleep tracking — which used to mean spending $500. Neither has multi-band GPS; step up to the 570 for that, or find the previous-generation Forerunner 265, which has it for less. The 970 is the only Forerunner with ECG, a flashlight, and full-color maps on top of it.

Best for: Runners, cyclists, triathletes, and anyone training toward a date on a calendar.

Skip it if: You want a smartwatch first. Garmin's notifications, apps, and general phone integration are functional and no more than that.

Apple Watch — the best all-arounder if you carry an iPhone

Price: SE 3 from $249 · Series 11 from $399 · Ultra 3 $799.
Subscription: None for any health feature.
Battery: SE 3 18 hours · Series 11 24 hours · Ultra 3 42 hours.

Apple's pitch is that it's a good watch that also does health well, and that's fair. Series 11 carries ECG, hypertension notifications, sleep score, and sleep apnea notifications, and it fast-charges to eight hours of use in 15 minutes — which is how you make a 24-hour battery survive sleep tracking.

Know the tiers. SE 3 at $249 does not have ECG, blood oxygen, or hypertension notifications — but it did gain the always-on display and sleep score, which makes it the best cheap sleep tracker Apple has ever sold. Ultra 3 is the only Apple Watch with dual-frequency GPS and satellite messaging, and the only one built for diving and multi-day use.

Best for: iPhone users who want one device for everything, and anyone who wants ECG and hypertension screening without a subscription.

Skip it if: You're on Android — it simply won't pair — or you want a watch you charge weekly instead of nightly.

Google Pixel Watch 5 and Fitbit Air — the health-AI play

Price: Pixel Watch 5 $399 (41mm Wi-Fi) / $429 (45mm Wi-Fi). Fitbit Air $99.99.
Subscription: Hardware works without it; Google Health Premium is $9.99/month or $99.99/year.
Battery: Pixel Watch 5 up to 30 hours (41mm) / 40 hours (45mm). Fitbit Air about a week.

Google is pushing hardest on health interpretation. Pixel Watch 5 has ECG, dual-frequency GPS, and Gemini on the wrist today. The headline additions — blood pressure pattern tracking, insulin resistance estimates from 30 days of sensor data, sleep breathing quality, and breathing emergency detection — are announced as "rolling out soon" rather than shipping, and breathing emergency detection has not been cleared by the FDA and is launching in select EU markets first. Buy it for what it does now, not the roadmap.

The genuinely interesting product is the Fitbit Air at $99.99 — a screenless band with 24/7 heart rate, AFib alerts, SpO2, HRV, and sleep stages, about a week of battery, and it works with both iPhone and Android. It's the cheapest honest entry point in this entire post.

Best for: Android users who want the deepest health-coaching software, or anyone who wants real tracking for a hundred bucks.

Skip it if: You have an iPhone and want the watch — Pixel Watch doesn't pair with iOS at all. Fitbit Air does. And go in knowing the coaching layer is a recurring $99.99 a year.

Samsung Galaxy Watch9 and Watch Ultra2 — the free-software option

Price: Watch9 40mm $379.99 (Bluetooth) / $429.99 (LTE) · 44mm $409.99 / $459.99 · Watch Ultra2 47mm $699.99.
Subscription: None. Samsung Health is free, deliberately.
Battery: Watch9 up to 30 hours with always-on display · Ultra2 around 60 hours.

Samsung has the most sensors for the money: ECG, FDA-cleared sleep apnea detection, dual-frequency GPS, and the only body composition measurement on a mainstream watch. When Google moved its coaching behind a paywall in 2026, Samsung shipped its Health overhaul explicitly free — Vitals, Heart Health Score, Daily Cardio Load, Fitness Index, all included.

There's one real catch, and it's bigger than the spec sheet admits: the clinical features — ECG, blood pressure, irregular rhythm notifications, sleep apnea detection — run through Samsung Health Monitor, which requires a compatible Samsung Galaxy phone. On a Pixel or another Android you lose those, and Samsung's fine print gates or degrades several of the softer metrics too. There's no iPhone support at all.

Best for: Galaxy phone owners. On a Galaxy, this is the most feature-per-dollar watch here.

Skip it if: You don't own a Samsung phone.

Oura Ring 5 — the one you forget you're wearing

Price: $399 (Silver, Black) up to $499 (Gold, Stealth, Brushed Silver, Deep Rose). The previous-gen Ring 4 still lists at $349 and gets discounted well below that.
Subscription: $5.99/month or $69.99/year, required for the scores.
Battery: 6 to 9 days (Ring 4 was 5 to 8).

A ring reads from the finger, which is a better signal location for resting heart rate and temperature than the wrist, and there's nothing to snag when you lift or sleep. You get Sleep, Readiness and Activity scores, temperature trends, cycle insights, and an AI advisor.

Oura added Live Activity Tracking in June 2026, so it now does real-time pace, distance and heart rate — but the GPS comes from your phone, not the ring. It's a recovery and sleep instrument that tolerates workouts, not a training device.

Best for: Sleep and recovery tracking with zero wrist presence, and people who need a size-agnostic device for hands-on work.

Skip it if: You want mid-workout feedback, or the $69.99 a year on top of a $399 ring bothers you. Year one is $468.99.

The Comparison Table

* Requires a compatible Samsung Galaxy phone.

Now Run It Out Three Years

This is where the pricing models separate, and it's the number I'd actually decide on.

Three years of Whoop Life costs more than Garmin's flagship running watch. That's not an argument against Whoop — a device you wear 24/7 for three years and actually act on is worth more than a great watch in a drawer. But it should be a conscious trade, not a surprise.

One more line item people forget: cellular models need a carrier plan. An LTE watch is a second line on your phone bill — check your own carrier's smartwatch line rate before you buy, because it's often a bigger recurring cost than any of the subscriptions above.

Pick by What You Actually Do

• You want to get faster at running. Garmin. Forerunner 170 at $299.99 if you're building a base, 970 if you're chasing a time and want maps and multi-band GPS.
• You lift and care about recovery. Whoop or Oura. Both are built around the overnight signal rather than the workout.
• You want one device for everything and carry an iPhone. Apple Watch Series 11.
• You carry a Galaxy phone. Galaxy Watch9. It's the most sensors per dollar and the software is free.
• You want to spend as little as possible and still get real data. Fitbit Air at $99.99, or Apple Watch SE 3 at $249 if you're on iPhone and want sleep score plus a real watch.
• You hate wearing things on your wrist. Oura Ring 5, or a Whoop worn on the bicep.
• You do triathlon, trail, or anything long. Forerunner 970, Fenix 8 Pro, or Apple Watch Ultra 3.

What Matters Less Than the Marketing Says

Sleep stage precision. Every one of these devices will confidently tell you how much REM you got. The validation research says take that with salt. A 2021 study in SLEEP tested seven consumer sleep trackers — four wearables and three bedside sensors — against clinical polysomnography and found sensitivity for detecting sleep was high (all ≥0.93) but specificity for detecting wake was low, 0.18 to 0.54, and that "device sleep stage assessments were inconsistent." A 2025 validation study in SLEEP Advances ran six wrist wearables against polysomnography and found stage-scoring agreement from κ = 0.53 (Apple Watch Series 8, the best of the six) down to κ = 0.21 (Garmin Vivosmart 4) — moderate at best. Worth noting the tested devices were a generation or two back in both studies; the physics of reading brain state from a wrist hasn't changed. Total sleep time is trustworthy. The stage breakdown is a rough sketch.

Calorie burn. Every device estimates it, none measure it, and the errors are large. Use it as a relative number across your own days, never as a budget.

AI coaching. It's the headline feature on almost every 2026 release, and it's mostly the same recovery data in conversational packaging. Useful, not transformative, and increasingly the thing you're actually paying the subscription for.

The thing that predicts value better than any spec: how often you have to take it off. A device with a two-week battery that never leaves your body collects data a 24-hour device physically cannot. That's the real reason Whoop and Oura beat watches at sleep — not better sensors, just uninterrupted presence.

The Honest Limits

These are consumer wellness devices. ECG features screen for atrial fibrillation; they don't diagnose it. Hypertension notifications flag a pattern; they don't measure your blood pressure. Blood pressure estimates need calibration against a real cuff and can drift. Sleep apnea notifications are a prompt to see someone, not a result.

If something a wearable tells you worries you, that's a reason to see a doctor, not a reason to buy the next tier up.

And the flip side: none of this data trains for you. I've watched people optimize a recovery score for months while the actual work — sleep at a consistent time, train hard three days a week, eat enough protein — went undone. The watch is a measuring device. You're still the variable.

Buy the one you'll wear every day, and then go do the boring thing it's measuring.

Get better, together.

Common Questions

Which fitness watches require a subscription?

Whoop requires a membership — the annual plans run $199 to $359 — because the hardware is included rather than sold. Oura requires a $5.99/month or $69.99/year membership to see your scores. Garmin, Apple, and Samsung require no subscription for any health feature. Google's hardware works without paying, but the coaching layer needs Google Health Premium at $9.99/month or $99.99/year.

Is Whoop cheaper than a Garmin?

In year one, usually yes — Whoop One is $199 against $299.99 for a Forerunner 170. Over three years it flips: Whoop One totals $597 and Whoop Life $1,077, while the Garmin stays at its one-time price. Whoop is cheaper to start and more expensive to keep.

Do you need dual-frequency GPS?

Only if you train where the sky is blocked — dense cities, forest, canyons. On roads and tracks, single-band GPS is accurate enough. Worth knowing: Apple Watch Series 11 does not have dual-frequency GPS; only Ultra 3 does. Garmin's Forerunner 570 and 970, Pixel Watch, and Samsung's Watch9 and Ultra2 all do.

What's the cheapest fitness tracker that actually works?

The Fitbit Air at $99.99 — screenless, roughly a week of battery, with 24/7 heart rate, HRV, SpO2, AFib alerts, and sleep stages, and it pairs with both iPhone and Android. If you want a screen, the Garmin Forerunner 70 at $249.99 or Apple Watch SE 3 at $249 are the honest entry points.

How accurate are the sleep stages on these devices?

Total sleep time is reliable across most devices. Sleep stages are not. Validation studies comparing wrist wearables to clinical polysomnography find high sensitivity for detecting sleep but low specificity for detecting wake, and inconsistent stage classification — agreement in a 2025 six-device study ranged from moderate (κ = 0.53, Apple Watch Series 8) to fair (κ = 0.21, Garmin Vivosmart 4). Trust the trend, not the nightly REM number.

Can you use a Galaxy Watch or Pixel Watch with an iPhone?

No. Neither the Samsung Galaxy Watch9 nor the Pixel Watch pairs with iOS. The Fitbit Air does work with both platforms, and so do Oura and Whoop.

Where These Numbers Come From

Every price and spec above was checked against the manufacturer's own page or press release on August 17, 2026. Prices move — if you're reading this much later, treat the figures as a starting point and verify before you buy.

• Whoop membership tiers and Whoop 5.0 / MG specs
• Garmin press releases for the Forerunner 70 and 170 and the Forerunner 570 and 970, plus Connect+ pricing
• Apple's Series 11, SE 3 and Ultra 3 spec pages, and Apple Support on hypertension notification eligibility
• Google on the Pixel Watch 5, the Fitbit Air, and what's free vs. paid in Google Health
• Samsung's Galaxy Watch9 and Watch Ultra2 announcement
• Oura Ring 5 launch and Oura membership pricing
• Sleep accuracy: Chinoy et al., SLEEP (2021) and a six-device validation study in SLEEP Advances (2025)