Do cardiologists recommend smart watches?
MedStar Health cardiologists and primary care providers see data from these devices every day. Their perspective is clear: smartwatches are a valuable tool for promoting activity and heart-health awareness. But they should be used in addition to, not a replacement for, a medical evaluation. The smartwatch with the longest battery life in 2025 is Garmin Enduro 2, delivering up to 34 days per charge, 46 days with solar, and 77-172 days in expedition. For non-solar longevity, COROS Vertix 2 holds the crown at up to 60 days. If you need true multi-week endurance, these are the clear winners.smartwatches tend to have a short battery life which governed by technical limitations. Some devices, like the simpler fitbit trackers, can last for several days. But for some more advanced ones, like the apple watch, maybe only last for a day or so.
How to identify a good smart watch?
A good watch offers dependable performance for its price; the best watch offers features that simplify your life without overcomplicating it. Premium Materials and Features: Higher-priced watches offer advanced health sensors (ECG), premium materials, and robust app stores. Choosing a Garmin watch over one from Google/Fitbit is the right decision if you’re looking for a device primarily for workout tracking. Almost all the brand’s devices excel in outdoor tracking accuracy and advanced metrics. Plus, there are tons more designs and price points to work from.Smartwatch accuracy bottom line If heart rate accuracy is your top priority, the $400 Apple Watch Series 11 is what to buy. It was the all-around winner, consistently strong across every category and the most precise for heart rate, staying within 1% of the chest strap during runs.If you want elite GPS accuracy, powerful training analytics, strong navigation tools, and a watch that’s comfortable enough to wear daily — the Forerunner 970 currently delivers the best overall balance in the category. It’s expensive and the learning curve is real.