Fitness trackers and smartwatches overlap more every year, but they are still built around different priorities. Trackers focus on health data and long battery life. Smartwatches act as a mini phone on your wrist.
Choose a fitness tracker if you want
- Battery life measured in days or weeks
- A slim, light band that is comfortable to sleep in
- Simple step, heart-rate and sleep tracking
- A lower price
Choose a smartwatch if you want
- Rich notifications and quick replies
- Apps, music controls and contactless payments
- Built-in GPS for running or cycling without your phone
- A bigger, brighter screen
Features to compare
- Phone compatibility: some watches only work fully with iPhone or Android. Check this first.
- Battery life: daily charging suits some people, but others prefer charging once a week.
- Sensors: heart rate is standard. SpO2, skin temperature and ECG vary by model.
- Water resistance: look for 5 ATM or “swim-proof” if you swim.
- Subscriptions: some brands put advanced insights behind a monthly plan.
A note on accuracy
Wrist-based trackers are good at spotting trends over time, but they are not medical devices. Use the data as a helpful guide, and talk to a doctor about any health concerns.
See our Gadgets picks to compare options.