New Delhi, Oct. 22 -- Smartwatches aren't accessories anymore. They track your sleep, your runs, your recovery, and sometimes your stress levels better than you can. 2025's lineup packs AI coaching, ECG, VO₂ max, and even sleep apnea alerts. The catch? Not every watch deserves your money. Here's how to spot the real deal.

Before you scroll through discounts, ask what you're training for.

A good smartwatch doesn't just count heartbeats, it interprets them. ECG, SpO₂, and HRV sensors now set the tone for serious tracking. Garmin Forerunner, Apple Watch Series 10, and Galaxy Watch 8 Ultra push near-clinical accuracy with curved sensors that actually stay in contact during motion. For runners and cyclists, multiband GPS and baro...