Best Fitness Wearables 2026
Track your workouts, heart rate, and sleep without the bulk of a smartwatch—slim bands that fit any wrist.
WHOOP 5.0 Fitness Band
Fitbit Charge 6
Xiaomi Smart Band 9
Garmin Vivosmart 5
Fitness wearables range from sub-$30 bands that count steps and heart rate to subscription-based recovery trackers built for serious training. The four products on this page show how wide that spread is: the Xiaomi Smart Band 9 focuses on low cost and a 21-day battery, the Fitbit Charge 6 adds built-in GPS and ECG, the Garmin Vivosmart 5 skips subscriptions entirely, and the WHOOP 5.0 drops the screen in favor of app-based coaching.
Each one makes a different trade-off between price, features, battery life, and ongoing fees. Our scores reflect how well each product delivers on what it sets out to do, but the right pick depends on how you train and what you want to see on your wrist. The sections below cover the decisions that matter most before you buy.
How to choose fitness wearables
Decide whether you need built-in GPS
If you run or ride and want to leave your phone at home, built-in GPS matters. Among these four, only the Fitbit Charge 6 has it. The Xiaomi Smart Band 9 and Garmin Vivosmart 5 rely on a connected phone for GPS, so routes and pace depend on carrying your phone. The WHOOP 5.0 lists no GPS in its specs here. For gym work, walking, and general activity tracking, phone-based GPS is usually fine and lets you avoid paying more.
Check the subscription before the sticker price
Ongoing fees change the real cost. The WHOOP 5.0 requires a subscription at $30 per month (or $239 per year), and the band is unusable for its main purpose without it. The Fitbit Charge 6 includes six months of Fitbit Premium, after which a subscription is needed for full features. The Garmin Vivosmart 5 requires no subscription, and its Garmin Connect ecosystem is free. The Xiaomi Smart Band 9 lists none. Multiply any monthly fee over two or three years before comparing.
Weigh battery life against display and features
Battery life varies widely here. The Xiaomi Smart Band 9 lasts up to 21 days with a bright 1.62-inch AMOLED screen. The Fitbit Charge 6 and Garmin Vivosmart 5 each last about 7 days, and the WHOOP 5.0 lasts up to 5 days. Longer battery means less charging and fewer gaps in sleep data, which matters if you wear the device overnight. Richer sensors and GPS generally cost battery, so decide which you would rather manage.
Match the health sensors to what you actually use
Sensor sets differ. The Fitbit Charge 6 includes ECG, SpO2, and heart rate. The Xiaomi Smart Band 9 covers heart rate, SpO2, and stress but has no ECG, and it is described as less accurate than premium bands. The Garmin Vivosmart 5 adds Body Battery energy monitoring alongside pulse ox and stress. The WHOOP 5.0 adds skin temperature and focuses on recovery, strain, and sleep coaching. Pick based on the metrics you will look at regularly, not the longest spec list.
Frequently asked questions
Do I have to pay a subscription to use a fitness wearable?
It depends on the device. The WHOOP 5.0 requires a subscription at $30 per month. The Fitbit Charge 6 includes six months of Fitbit Premium, then needs a subscription for full features. The Garmin Vivosmart 5 has no subscription, and the Xiaomi Smart Band 9 lists none in its specs.
Which fitness wearable has the longest battery life?
Among the products listed here, the Xiaomi Smart Band 9 has the longest battery at up to 21 days. The Fitbit Charge 6 and Garmin Vivosmart 5 each list 7 days, and the WHOOP 5.0 lists up to 5 days.
Do I need a fitness band with built-in GPS?
Only if you want to run or ride without your phone. The Fitbit Charge 6 has built-in GPS. The Xiaomi Smart Band 9 and Garmin Vivosmart 5 use your phone's GPS. For gym workouts and everyday activity tracking, phone-connected GPS is generally enough.
Is the WHOOP 5.0 worth it without a screen?
It suits people who want recovery, strain, and sleep coaching and are comfortable checking everything in the app. It has no display and requires the $30 monthly subscription. If you want to see time, notifications, or stats on your wrist, another band on this page fits better.
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