It has been about a year since I got my first smartwatch/activity tracker  - Samsung Galaxy Fit, since then I have been falling in love with these smartwatches. 

In today's article, I've listed the top 10 best selling smartwatches on Amazon in 2020

These are the top brands in 2020 - Apple, Letsfit, Fitbit, Wilful, and Samsung Galaxy

Disclosure: As an Amazon Associate I earn from qualifying purchases. This article contains affiliate links to Amazon.com, by clicking on links on this page and by making a purchase on Amazon site, I will earn an affiliate income at no cost to you. Prices for smarwatches listed on this page are retrieved using Amazon Product  Advertising API and is updated daily. For actual prices please refer to the product page on Amazon.

Apple Watch Series 3 (GPS, 38mm) - Space Gray Aluminum Case with Black Sport Band

Apple Watch Series 3 (GPS, 38mm) - Space Gray Aluminum Case with Black Sport Band

  • GPS
  • Retina display
  • Swimproof
  • Optical heart sensor
  • Stores music, podcasts, and audiobooks
  • Elevation
  • Emergency SOS

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Apple Watch Series 3 (GPS, 38mm) - Silver Aluminum Case with White Sport Band

Apple Watch Series 3 (GPS, 38mm) - Silver Aluminum Case with White Sport Band

  • GPS
  • Retina display
  • Swimproof
  • Optical heart sensor
  • Stores music, podcasts, and audiobooks
  • Elevation
  • Emergency SOS

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Letsfit Smart Watch, Fitness Tracker with Heart Rate Monitor, Activity Tracker with 1.3" Touch Screen, IP68 Waterproof Pedometer Smartwatch with Sleep Monitor, Step Counter for Women and Men

Letsfit Smart Watch, Fitness Tracker with Heart Rate Monitor, Activity Tracker with 1.3" Touch Screen, IP68 Waterproof Pedometer Smartwatch with Sleep Monitor, Step Counter for Women and Men

  • Overtake your expectations: featuring a 1. 3-Inch large touch screen that allows you to understand your health more intuitively by displaying your sports data vividly and in a way that is easy to understand. Meets IP68 water Standard requirements, this Letsfit smartwatch also lets you avoid any troubles when swimming or working out in the rating.
  • Protect & monitor your health: Our Letsfit activity watch includes a bunch of new features, including: music control, even Stress training. Making it more than just a health tracker.
  • Affordable & Functional: Like most traditional health trackers, Lestfit Smart Tracker can monitor your steps, calories burned, sport mileage, and sleep quality status 24 hours a day whilst syncing with our VeryFitPro app. Your device can also enjoy up to 10 days of battery life per full charge.
  • Call & message notifications: Receive and read SMS messages and SNS notifications straight to your device (including Facebook, twitter, WhatsApp, LinkedIn and Instagram). you can even hang up incoming phone calls straight from your wrist
  • Smart Watch compatibility:"VeryFitPro" requires Android OS 4. 0 or iOS 8. 0 and above or Bluetooth 4. 0 and above, suitable for smartphones only.

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Fitbit Versa 2 Health and Fitness Smartwatch with Heart Rate, Music, Alexa Built-In, Sleep and Swim Tracking, Black/Carbon, One Size (S and L Bands Included)

Fitbit Versa 2 Health and Fitness Smartwatch with Heart Rate, Music, Alexa Built-In, Sleep and Swim Tracking, Black/Carbon, One Size (S and L Bands Included)

  • Use amazon Alexa built in to get quick news and information, check the weather, set timers and alarms, control your smart home devices and more all through the sound of your voice (third party app may be required; amazon Alexa not available in all countries)
  • Based on your heart rate, time asleep and restlessness, sleep score helps you better understand your sleep quality each night; also track your time in light, deep and REM sleep stages and get personal insights
  • Control your Spotify app, download Pandora stations and add Deezer playlists, plus store and play 300+ songs on your wrist (subscription required; Pandora is us only)
  • With a larger display and an always on option, your information’s always a quick glance away (always on display requires more frequent charging)
  • Track heart rate 24/ 7, steps, distance, calories burned, hourly activity, active minutes and floors climbed. Syncing range - up to 6.1 meters
  • Works around the clock with 6 plus day battery life (varies with use and other factors)
  • Get a call, text, calendar and smartphone app notifications when your phone is nearby; plus send quick replies and a voice replies on android only

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Apple Watch Series 5 (GPS, 44mm) - Gold Aluminum Case with Pink Sport Band

Apple Watch Series 5 (GPS, 44mm) - Gold Aluminum Case with Pink Sport Band

  • GPS
  • Always-On Retina display
  • 30% larger screen
  • Swimproof
  • ECG app
  • Electrical and optical heart sensors
  • Built-in compass

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Apple Watch Series 3 (GPS, 42mm) - Space Gray Aluminum Case with Black Sport Band

Apple Watch Series 3 (GPS, 42mm) - Space Gray Aluminum Case with Black Sport Band

  • GPS
  • Retina display
  • Swimproof
  • Optical heart sensor
  • Stores music, podcasts, and audiobooks
  • Elevation
  • Emergency SOS

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Willful Smart Watch for Android Phones and iOS Phones Compatible iPhone Samsung, IP68 Swimming Waterproof Smartwatch Fitness Tracker Fitness Watch Heart Rate Monitor Smart Watches for Men Women Black

Willful Smart Watch for Android Phones and iOS Phones Compatible iPhone Samsung, IP68 Swimming Waterproof Smartwatch Fitness Tracker Fitness Watch Heart Rate Monitor Smart Watches for Men Women Black

  • Compatible with most iOS 8.0 & Android 4.4 above smartphones. Download and install Free "VeryFitPro" APP, bind this smartwatch in your cell phone,you can receive alerts of calendar, SMS, incoming calls and SNS (Facebook, WhatsApp, LinkedIn, Instagram, Twitter and more) on this watch;It will never let you miss any important things.
  • Supports 9 sports such as Walking, running, bicycle , Hike, Mountaineering, Dynamic cycling, Hike, fitness, treadmill, Yoga. Accurately record all-day activities like steps, distance, calories burned, miles walked, active minutes. Connecting the GPS in your cellphone can track all your workout routes, distances, and physical status during exercise. Stay motivated all day!
  • Automatically monitor your real-time heart rate, and provide comprehensive analysis of your sleep quality (deep sleep,light sleep and wake up time) to help you develop a healthier lifestyle.
  • Willful smart watches is designed with IP68 waterproof rating,which allows you to swim in the pool with it with no worries(NOTICE:It can not track your swimming data). Large capacity and low power consumption design offers longer endurance.It support 7 days of normal use and 30 days standby time
  • Willful smart watch also features with many practical tools,such as alarm clocks,stopwatch,timer,deep breather guide,music controller,sedentary reminder,adjustable brightness,find phone.The APP's name is VeryFitPro,which works with Android 4. 0 or iOS 8. 0 and above,Bluetooth 4. 0 and above smartphones only, not for pc or tablet.

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Apple Watch Series 3 (GPS, 42mm) - Silver Aluminum Case with White Sport Band

Apple Watch Series 3 (GPS, 42mm) - Silver Aluminum Case with White Sport Band

  • GPS
  • Retina display
  • Swimproof
  • Optical heart sensor
  • Stores music, podcasts, and audiobooks
  • Elevation
  • Emergency SOS

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Samsung Galaxy Watch (42mm, GPS, Bluetooth) – Midnight Black (US Version)

Samsung Galaxy Watch (42mm, GPS, Bluetooth) – Midnight Black (US Version)

  • Live a stronger, smarter life with Galaxy Watch at your wrist rest well and stay active with built in health tracking and a Bluetooth connection that keeps everything at your wrist Plus, go for days without charging
  • Go nonstop for days on a single charge; The wireless charger lets you power up without slowing down (Average expected performance based on typical use; Results may vary). Battery type and size - 270mAh
  • Available in 2 sizes and 3 colors, the Galaxy Watch offers stylish watch faces so realistic they hardly look digital; Plus, choose from a collection of interchangeable bands
  • Pairs with both Android and iOS smartphones via Bluetooth connection; Compatible Devices Samsung Smartphone, Non Samsung Android Smartphone(Android OS 5.0 and above RAM 1.5GB and above ), iOS 9.0 and above iPhone 5 and above
  • Included in box: Galaxy Watch, Additional Strap (Large and Small included), Wireless charging Dock, Travel Adaptor, Quick Start Guide, User Manual (Warranty: 1 Year Standard Parts and Labor). OS: Tizen 4.0

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)

Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Carbon/Graphite, One Size (S & L Bands Included)

Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Carbon/Graphite, One Size (S & L Bands Included)

  • EDA Scan app detects electrodermal activity which may indicate your body's response to stress and a built-in skin temperature sensor logs yours each night so you can see when it varies
  • FDA review of compatible ECG app pending; Only available in U.S. upon clearance. Availability outside the U.S. pending applicable regulatory clearances including approval under Directive 93/42/EEC (the Medical Device Directive). Details at fitbit.com/ecg
  • An on-wrist skin temperature sensor tracks yours each night so you can see how it varies
  • Free 6-month Fitbit Premium trial for new Premium users (Free trial may only be activated with device activation & within 60 days of device activation. Valid payment method required. New users only. Cancel before free trial ends to avoid subscription fees)
  • High & low heart rate notifications alert you if yours seems above or below your average
  • Battery lasts 6+ days—plus, fast charging gives you a full day’s charge in just 12 minutes (Varies with use and other factors; up to 12 hours with continuous GPS)
  • Use built-in GPS during runs, hikes, rides and more to see pace & distance without your phone
  • Use your voice with Amazon Alexa Built-in to check the weather, set reminders, control smart home appliances and more from your watch (Voice assistant availability and features may vary)

List price: listpriceformattedprice not found for Buy this smartwatch on Amazon (Paid link)