FAQs: Common Questions About Smartwatches in 2025
Do smartwatches work without a phone?
Yes, but it depends on the model.
Most smartwatches require a smartphone for setup, app installations, and syncing data. However, there are LTE-enabled smartwatches that can function independently, allowing you to:
- Make and receive calls
- Send text messages
- Stream music
- Use GPS for navigation
Best Smartwatch for Phone-Free Use: Apple Watch Series 9 Pro (LTE) and Samsung Galaxy Watch 6 Ultra (LTE).
If you plan to use your smartwatch without a phone, look for models with built-in LTE or Wi-Fi connectivity.
Can a smartwatch measure blood pressure?
Some can, but not all.
Blood pressure monitoring is available on select smartwatches, such as the Samsung Galaxy Watch 6 Ultra. These watches use optical sensors and pulse wave analysis to estimate blood pressure. However:
- Most require calibration with a traditional blood pressure cuff.
- They are not a replacement for medical devices but can be useful for daily monitoring.
If you need accurate blood pressure readings, use a dedicated medical device.
Are smartwatches waterproof?
Most modern smartwatches are water-resistant, but not all are waterproof.
Water resistance varies by model:
- IP68 Rating → Resistant to dust and submersion in shallow water.
- 5ATM (50m water resistance) → Suitable for swimming.
- 10ATM (100m water resistance) → Suitable for diving and extreme water sports.
Best Waterproof Smartwatch: Garmin Fenix 8 (10ATM water resistance).
Can I track my sleep with a smartwatch?
Yes!
Many smartwatches now include detailed sleep tracking that monitors:
- Sleep cycles (light, deep, and REM sleep)
- Sleep duration and quality
- Heart rate and oxygen levels during sleep
- Sleep disturbances (like snoring or waking up frequently)
Best Smartwatch for Sleep Tracking: Fitbit Sense 3 (advanced sleep insights and Smart Wake alarms).
Can I use a smartwatch for running without carrying my phone?
Yes, if it has built-in GPS.
Smartwatches with integrated GPS allow you to track your runs, cycling routes, and hikes without needing to carry your phone.
Best Smartwatch for Running: Garmin Fenix 8 (multi-band GPS with offline maps).
If your smartwatch does not have built-in GPS, it will rely on your phone for location tracking.
Do smartwatches support mobile payments?
Yes!
Many smartwatches come with contactless payment support, allowing you to pay at stores without your phone or wallet. Popular payment platforms include:
- Apple Pay (Apple Watch)
- Google Wallet (Wear OS smartwatches)
- Samsung Pay (Samsung Galaxy Watches)
Best Smartwatch for Mobile Payments: Apple Watch Series 9 Pro and Samsung Galaxy Watch 6 Ultra.
Can I use a smartwatch to control my smart home devices?
Yes, if your smartwatch supports voice assistants like:
- Siri (Apple Watch)
- Google Assistant (Wear OS smartwatches)
- Amazon Alexa (Fitbit Sense 3, Google Pixel Watch 2)
With these assistants, you can:
- Turn on/off lights
- Adjust thermostat settings
- Lock/unlock smart doors
- Control security cameras
Best Smartwatch for Smart Home Control: Google Pixel Watch 2 (Google Assistant integration).