If you’re looking for the best smartwatches around 20 (currency not specified, I’ll assume USD for broad availability), here are top picks across different needs and budgets based on 2025 reviews and hands-on testing. Overview

• Best overall: Apple Watch Ultra 3 — flagship performance, robust build, best battery life for an Apple Watch, and industry-leading features for health, GPS, and outdoor use.
• Best for Android: Samsung Galaxy Watch 8 — strongest Wear OS experience, excellent health suite, solid battery life, and deep integration with Samsung devices.
• Best value: Google Pixel Watch 3 or Samsung Galaxy Watch FE — solid feature set, good performance, and more approachable price points with strong software experiences.
• Best for fitness and health tracking: Garmin Venu Sq 2 and Fitbit devices (various models) — deeper tri-axial sensors and sport modes, with long battery life on some options.
• Premium alternative: Apple Watch Series 11 LTE or Ultra 2 (older generations when Ultra 3 is out of reach) — still excellent, with strong app ecosystems and health metrics.

Top picks by use case

• iPhone users who want maximum capability
  • Apple Watch Ultra 3: best all-around smartwatch with satellite connectivity, longer battery life, dual Ultra Wideband Find My, and a bright LTPO3 display. It’s bulkier, premium-priced, and strongly ecosystem-dependent on iPhone features.

• Android-focused users
  • Samsung Galaxy Watch 8: strongest overall Android-compatible option, smooth Wear OS experience with Gemini AI integration, robust health features, and a refined design. Battery life is solid but not exceptional, especially on the smaller size.

• Budget-conscious or non-Apple/Google hybrids
  • Samsung Galaxy Watch FE or Google Pixel Watch 3: good balance of features, performance, and price. Wear OS updates continue to improve long-term usability.

• Fitness-centric wearables
  • Garmin Venu Sq 2: excellent for serious workouts with Garmin’s trusted GPS and health metrics; great battery life for a multisport watch.
  • Fitbit Versa 4 / Ace series: strong for everyday activity tracking and guided health features, with excellent sleep and fitness insights on compatible devices.

• Best all-around alternative picks
  • Apple Watch Series 11 LTE 46mm or Ultra/S Series 3 if you want a non-Ultra option with strong health features and good third-party app support.

What to consider when choosing

• Ecosystem compatibility: Apple Watch models work best with iPhone; Samsung/Google Wear OS watches work best with Android but also pair with iPhone with reduced functionality.

• Battery life: Apple Watch Ultra 3 and some Galaxy Watch models offer better endurance than earlier wearables, but daily charging remains common for most high-end watches.

• Health and fitness features: ECG, blood pressure, oxygen saturation, GPS accuracy, and sleep insights vary by model and region; confirm feature availability for your phone and region.

• Price and durability: Ultra models are premium-priced and rugged for outdoor use; FE and Versa lines deliver good value with sufficient durability for daily wear.

If you’d like, I can tailor recommendations to your exact budget, preferred phone (iPhone vs Android), and the features you care about most (health tracking, GPS for runs, battery life, or rugged design).