Smartwatches and fitness bands can show notifications, count steps, track sleep and even answer calls. They also range from very basic to very capable, and the marketing often hides the details that matter. Use this guide to decide what you need first, then match it to a product.
Smartwatch or fitness band?
- A fitness band is slim, light and cheap, with a small screen. It is best for steps, heart rate, sleep and basic notifications. Battery often lasts one to two weeks.
- A smartwatch has a bigger, brighter screen and more features such as calls from the wrist, music control, apps and watch faces. Battery usually lasts a few days, sometimes longer on simpler models.
If your goal is health and activity tracking at a low price, start with a band. If you want to read messages comfortably and take calls, a smartwatch is worth it.
Check that it works with your phone
Almost every watch works with Android phones. Apple's own watches are designed for iPhone, and many other watches work with iPhone too but with fewer features. Before buying, confirm that the watch has an app for your phone type, and that the app is available in your country's app store.
The five things that matter most
- Battery life. Decide how often you are happy to charge. Daily charging is annoying for many people. Check claims against real use: heavy features such as a always-on display shorten the battery.
- Screen. AMOLED screens look brighter and sharper, especially outdoors. Look for good brightness if you are often in the sun.
- Health sensors. Heart rate and step counting are standard. Features like blood oxygen and sleep tracking are useful, but treat the numbers as guidance, not medical advice.
- Calls and speaker. If you want to take calls on your wrist, check that the watch lists Bluetooth calling and a speaker and microphone.
- Water resistance. A rating such as IP67 handles sweat and rain. It does not mean you should swim with it unless the maker says so.
Comfort and straps
You wear a watch all day, so weight and strap material matter. Silicone straps are comfortable and easy to clean. Look for a standard strap size so you can replace it later, and make sure the case is not so large that it feels bulky on a smaller wrist.
Charging
Most watches charge with a small magnetic dock or clip that is specific to that model. Keep the charger safe, because replacing a lost one can be harder than replacing a normal cable. Some newer models charge with a standard cable.
Before you buy
- Confirm the watch is the exact model advertised and comes sealed with its charger and strap.
- Pair it with your phone as soon as you receive it and check the main features work: notifications, heart rate and, if advertised, calls.
- Ask about the warranty and how to return it if something is wrong.
- Be careful with very cheap watches that promise flagship features. If a price looks too good to be true, features are probably exaggerated.
Where to start
Browse our smartwatches and smart bands. If you are unsure which suits you, tell us how you plan to use it on live chat and we will help you narrow it down.
Frequently asked questions
Do I need a smartwatch if I have a phone?
No, but a watch is convenient. You can see notifications without taking out your phone, track activity and answer quick calls. It is a comfort upgrade rather than a necessity.
Can a smartwatch work without internet?
Yes. Heart rate, steps and timers work offline. Features such as weather, app notifications and syncing need your phone to be connected.
Are the health readings accurate?
They are good for tracking trends, such as how your resting heart rate or sleep changes over weeks, but they are not medical devices. See a doctor for any health concern.
How long does a smartwatch last before it needs replacing?
With care, many last three years or more. The battery is usually the first part to wear out.




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