⌚ Smartwatches

The word "smartwatch" currently covers two completely different product classes sold side by side online: full operating system watches (Apple watchOS, Google Wear OS) that support third-party apps, Wi-Fi/LTE connectivity, keyboard replies, and clinical-grade ECG sensors with 1 to 4 days of battery life, versus lightweight RTOS Bluetooth-calling watches that mirror notifications and last 7 to 14 days on a charge. Our smartwatch buying guides help you avoid overpaying for rebranded watches with inaccurate optical sensors. We evaluate step-counting and workout heart-rate consistency, built-in dual-band GNSS/GPS satellite lock times for outdoor runners, AMOLED peak brightness in direct midday sunlight, rotating crown and bezel navigation, and iPhone versus Android pairing restrictions before you spend your hard-earned money on a wrist wearable. Compare our tested picks below to find a watch that balances accurate health tracking, sunlight legibility, and multi-day battery life.