Our review team is a group of avid product hunters, and they want to share their experiences with you.
To help you find the smart watches under 400 brand we analyzed & researched all the features that are right for you and came up with a list of 10 different options to purchase.
We also took time to assess a wide variety of options including durability, materials, designs, expert reviews & customer ratings to find the best-performing smart watches under 400.
The resulting review has in-depth details on specific performance areas, as well as recommendations for your goals and budget.
Read on and know which is right for you.
Amazfit Bip U Pro Smart Watch with Alexa Built-In for Men Women, GPS Fitness Tracker with 60+ Sport...
GRV Smart Watch for iOS and Android Phones, Watches for Men Women IP68 Waterproof Smartwatch Fitness...
Garmin Vivoactive 4, GPS Smartwatch, Features Music, Body Energy Monitoring, Animated Workouts,...
Garmin Venu, GPS Smartwatch with Bright Touchscreen Display, Features Music, Body Energy Monitoring,...
Smart Watch for Women, AGPTEK Smartwatch for Android and iOS Phones IP68 Waterproof Activity Tracker...
Fitness Tracker with Heart Rate Monitor, Fitpolo Smart Watch 1.3 inches Color Touch Screen IP68...
TOZO S2 Smart Watch Alexa Built-in Fitness Tracker with Heart Rate and Blood Oxygen Monitor, Sleep...
Garmin 010-02064-00 Instinct, Rugged Outdoor Watch with GPS, Features Glonass and Galileo, Heart...
Smart Watch 2022(Call Receive/Dial), 1.70 in HD Full Touch Screen Smartwatch Fitness Tracker with...
Samsung Electronics Galaxy Watch 4 44mm Smartwatch with ECG Monitor Tracker for Health Fitness...
10 Best smart watches under 400 Reviews:
Amazfit Bip U Pro Smart Watch with Alexa Built-In for Men Women, GPS Fitness Tracker with 60+ Sport Modes, Blood Oxygen Heart Rate Sleep Monitor, 5 ATM Waterproof, for iPhone Android Phone (Black)
- 【ALEXA & GPS BUILT-IN】You can talk to Amazon Alexa on your Amazfit Bip U Pro smartwatch, Ask questions, get translations, check the weather, control your smart home devices and more. And get precise tracking of your distance, daily step count thanks to integrated GPS.
- 【60+ SPORTS MODES & 5 ATM WATERPROOF】Featuring 60+ sports modes to help you exercise at a higher level. Water-resistant up to 50 meters, you can wear the fitness watch for swimming and it will record your achievements even underwater.
- 【MORE HEALTH TRACKING METRICS】The Amazfit Bip U Pro smart watch can provide all-around health tracking, allowing you to accurately track 24-hour heart rate, blood oxygen levels, stress levels, sleep quality, and female menstrual cycle.
- 【LONG 9-DAY BATTERY LIFE】When fully charged you can relax and enjoy more than a full week of travel or work without worrying about chargers.
- 【DESIGN FOR ALL-DAY COMFORT】Amazfit Bip U Pro fitness tracker only weighs 31 grams, An ultra-light design you can barely feel when striving for peak performance. Featuring a 1.43” large color screen with 320x302 pixel resolution, creates an exquisite visual display, making all incoming calls, messages, and reminders extremely clear.
GRV Smart Watch for iOS and Android Phones, Watches for Men Women IP68 Waterproof Smartwatch Fitness Tracker Watch with Heart Rate/Sleep Monitor Steps Calories Counter (Pink)
- 【Accurate Fitness Tracker with 9 Sport Modes】 This fitness tracker watch can accurately provide 24hrs heart rate monitoring, calories burned counter, steps counter, sleep monitoring and female cycle tracking. 9 sports modes are optional, including various outdoor and indoor activities, allow you to get the real-time stats during your workouts on the watch. You can also connect it to smartphone's GPS to track all your workout routes and distance traveled during exercise.
- 【Smart Watch Compatible with iPhone Android Phones】- This smart watch is compatible with most iOS 8.0 & Android 4.4 or higher smart phones(Not for PC or tablet). Pair the smart watch to your phone and receive all incoming calls, messages, apps notifications straight to your smartwatch including Facebook, Instagram, Twitter, Whatsapp, and more. (Please note: only supports receiving calls and messages).
- 【24/7 Heart Rate Monitor & Sleep Tracker】 This smart tracker watch will monitor your heart rate every 5 minutes all day; It also detect and track your sleep, and analyze your sleep quality automatically.(deep sleep, light sleep, and awake time). By connecting the smartwatch to your phone, the VeryFitPro app will provide detailed heart rate chart and comprehensive analysis of your sleep quality to help you stay active and stay healthy:)
- 【Long-lasting battery & IP68 Waterproof Smart Watch】 When fully-charged, this watch can last for up to 7 days or 30 days standby time. With IP68 waterproof, this fitness watch can meet the waterproof requirements of your daily activities such as washing hands or working out in the rain with it. Whether it's sweat or a small splash, just handle it with ease.
- 【Smart Watch for Women Men with More Practical Features】 This watch can fit for 6.2-9.2 inch wrist, suits for both women and men. It has many practical features, such as female menstrual cycle tracker, alarm clocks, music control, stopwatch, timer, deep breath guide, sedentary reminder. It's a also very good choice as gift for your friends and family members to help them stay motivated all day!
Garmin Vivoactive 4, GPS Smartwatch, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensors and More, Black
- Keeps track of your energy levels, Pulse Ox (this is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition), respiration, menstrual cycle, stress, sleep, estimated heart, hydration and more
- Easily download songs to your watch, including playlists from Spotify, Amazon music or Deezer (may require a premium subscription with a third party music provider), and connect with headphones (sold separately) for phone free listening
- Record all the ways to move with more than 20 preloaded GPS and indoor sports apps, including yoga, running, swimming and more
- Get easy to follow, animated workouts right on your watch screen, including cardio, strength, yoga and Pilates
- Battery life: Up to 8 days in smartwatch mode; Up to 6 hours in GPS and music mode
Garmin Venu, GPS Smartwatch with Bright Touchscreen Display, Features Music, Body Energy Monitoring, Animated Workouts, Pulse Ox Sensors and More, Granite Blue and Silver
- Watch case size 43mm; Fits wrists with a circumference of 125-190 mm
- Beautiful, bright AMOLED display and up to five-day battery life in smartwatch mode; up to six hours in GPS and music mode
- The broadest range of all-day health monitoring features keeps track of your energy levels, respiration, menstrual cycle, stress, sleep, estimated heart rate and more
- Easily download songs to your watch, including playlists from Spotify, Amazon music or Deezer (may require a premium subscription With a third-party music provider), and connect with headphones (sold separately) for phone-free listening
- Record all the ways to move with more than 20 preloaded GPS and indoor sports apps, including yoga, running, pool swimming and more
Smart Watch for Women, AGPTEK Smartwatch for Android and iOS Phones IP68 Waterproof Activity Tracker with Full Touch Color Screen Heart Rate Monitor Pedometer Sleep Monitor, Pink, LW11
- 【Your Watch, Your Style】1.3"/33mm touch screen covered with a gold metal frame, so elegant and nice, but sturdy and anti-scratch. The smart watch contains 5 dials readily available to choose from along with another 30 more dials within the app. You can also customize your watch faces. It can be any photo, such as your family, pet ,etc. NOTE: When there is a software update prompt on the APP, it is recommended to upgrade to the latest software version for a better experience!
- 【Your Personal Smart Assistant】Activity tracker (pedometer, calories, distance), heart rate, various sport modes, sleep monitoring.,etc. Get notifications of Call, SMS, and APP messages(THE WATCH CAN NOT MAKE MESSAGES, CALLS or TEXT BACK, Bluetooth distance 8-10 meters), remote control of music and cameras, weather report, sedentary reminder, alarm clock, stopwatch, find phone, call rejection, brightness adjustment, power-saving mode, and other functions to meet your daily needs.
- 【Long Battery & IP68 Waterproof】The smartwatch only takes 2 hours to charge and can be used for 7-10 days or 30 days standby time, much longer than most traditional watches. The fitness watch is IP68 waterproof, you can wear it when washing hands, in the rain(Note: Do Not use in water more than 100. 40℉, such as showers, saunas, spring, etc).
- 【Safe Guard Your Health】Advanced HR sensor for accurate and effective heart rate monitoring, helping you better understand your health and making a reasonable adjustment to your lifestyle. Automatic sleep tracking can monitor your sleep status (deep sleep, shallow sleep, awakening) and provide a comprehensive sleep quality analysis to help become healthier. You can view the summary of your status in the fitcloudpro APP.
- 【Overtake Your Expectations】The AGPTEK smart watch is compatible with most iOS 9.0 & Android 5.0 or higher smart phones version to notify you of call, text, email, calendar, and app notifications. The package includes:AGPTEK Smart Watch*1,TPU Silicone Strap*1, Magnetic Charger*1,User Manual*1. If your have any problem, please feel free to contact our customer service via your amazon account.
Fitness Tracker with Heart Rate Monitor, Fitpolo Smart Watch 1.3 inches Color Touch Screen IP68 Waterproof Step Calorie Counter Sleep Monitoring Pedometer Watches Activity Tracker for Women Men Kids
- ⌚【2021 Upgraded Smart Watch】 Equipped with 1.33 inches TFT-LCD full touch screen, make a great breakthrough in button touch fitness watch and advanced health smartwatch that helps you tune in to your body with tools for sleep tracking, sport record, menstrual health tracking, relax guidance, alarm, timer and so on.
- ⌚【Smart watch for Android Phones Samsung iPhone】- 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, Twitter, Whatsapp, Skype, Snapchat and more) on this watch; It will never let you miss any important events.
- ⌚【24/7 Heart Rate Monitor & Sleep Tracker】Automatically monitor your real-time heart rate and your sleep (Deep sleep, Light sleep and Awake time)to tell you how long and how well you sleep during the night, helping you to adjust yourself to live a better lifestyle.
- ⌚【IP68 Waterproof Fitness Watch & Long-lasting Battery】- Fitpolo Smart Watches are designed with IP68 waterproof rating, which allows you to swim in the pool with it with no worries. Large capacity and low power consumption design offers longer endurance. It supports 7 days of normal use and 35 days standby time.
- ✔【More Practical Gadgets & 9 Exercise Modes】- Fitpolo smart watch has features with many practical tools, such as customized watch faces, alarm clocks, stopwatch, timer,music controller, sedentary reminder, adjustable brightness, find phone. The APP's name is VeryFitPro, which works with Android 4.4 or iOS 8.0 and above, Bluetooth 5.0 and above smartphones only, NOT FOR PC or TABLET.
TOZO S2 Smart Watch Alexa Built-in Fitness Tracker with Heart Rate and Blood Oxygen Monitor, Sleep Monitor 5ATM Waterproof 1.69-inch HD Color Touchscreen for Men Women Compatible with iPhone & Android
- [Alexa Built-in] : Talk to Amazon Alexa on your TOZO S2. Ask questions, play music, check the weather,set alarms and timers, and more just by speaking to your watch. Also, you can speak to your smart watch via the built-in microphone upon the connection to your phone via Bluetooth.
- [1.69 inches Large HD Color Touch Screen] 1.69 large color screen and full screen touch and hand sliding. it ensures smooth operations and 240*280 resolution for you. Our screen is better at color saturation and reproduction. Personalize your smart watch for men women with multiple customized watch faces provided, make your own stylish smart watch.
- [Heart Rate, Sleep, Blood & Activity Tracking] With our smartwatch, it accurately monitors your heart rate in real time. Also, it provides a detailed analysis of your sleep quality by continuously recording your sleep patterns. During exercise, TOZO smartwatch automatically records daily steps, Distance Counter，calories burned, active minutes, measure your blood oxygen saturation and understand your physical state
- [Bluetooth connectivity and compatibility] When the S2 smart watch is connected to the app through Bluetooth, you can control the music player, view the local weather today, and support the mobile search function.TOZO Smart Watch is compatible with most iOS, Android or Bluetooth smartphones. Go to App Store or Google Play to download and install “TOZO Fit” for free, then connecting our smart watch to your phone and start your journey of smart life.
- [Long-lasting Battery Life & 5ATM Waterproof] The large battery capacity (300mAh) and low power consumption design offers longer endurance. It could last about 10 days when in auto monitoring mode for heart rate or 7 days when in the instant detection mode.TOZO Smart Watch is designed with 5ATM waterproof rating(50m waterproof), so no need to worry when you wear it while swimming or sweating out.
Garmin 010-02064-00 Instinct, Rugged Outdoor Watch with GPS, Features Glonass and Galileo, Heart Rate Monitoring and 3-Axis Compass, Graphite
- Rugged GPS watch built to withstand the toughest environments
- Constructed to U.S. Military standard 810G for thermal, shock and water resistance (rated to 100 meters)
- Built in 3 axis compass and barometric altimeter, plus multiple global navigation satellite systems (GPS, Glonass and Galileo) support helps track in more challenging environments than GPS alone
- Monitor your estimated heart rate, activity and stress; Train with preloaded activity profiles. Strap material: Silicone
- Stay connected with smart notifications (with a compatible smartphone) and automatic data uploads to the Garmin connect online fitness community
Smart Watch 2022(Call Receive/Dial), 1.70 in HD Full Touch Screen Smartwatch Fitness Tracker with Call/Text/Heart Rate (Black)
- 【Whatsapp or text facebook message reminder】please turn off the DISTURB mode in the smart watch settings. the watch can receive and display information normally.Turn on 3 notification permissions. (1) The notification permission in the phone settings is turned on.(2) The notification permission in whatsapp is turned on.(3) The notification permission in DaFit app is turned on.(4) Please turn off DISTURB in the smart watch settings. Note: Can't reply message.
- 【Call Receiving/Dialing】After connecting to Bluetooth, you can directly dial the phone number on the screen to answer the call. Bluetooth 5.0 (supports Android 4.4, IOS8.0 and above), allows you to exercise, fitness, and bike hands-free, using high-fidelity waterproof speakers. If you don’t need the call function, you can turn it off.Multiple sports modes, IP67 waterproof level(note: not suitable for diving, swimming or sauna. Try not to put the watch in the water).
- 【Heart rate, blood pressure and sleep detection】This fitness smart watch with receiving/dial function can detect your blood pressure and heart rate. You can enable 24-hour heart rate detection in the APP. The high-performance motion sensor monitors sleep status (deep sleep, light sleep and wake-up time) and provides comprehensive sleep quality analysis.
- 【1.70" full touch screen and multi-dial】This fitness smart watch with receiving dial function has a 1.72-inch TFT high-definition full rounded touch screen. (Receive/Dial) and message notifications can be displayed directly on the screen. Five levels Brightness options allow you to easily read in the sun or in the dark. There are a variety of dials and DIY dial designs. You can also choose your favorite picture in the App (Da fit) to customize the dial to release your unique personality.
- 【Battery life and life assistant】230mAH battery capacity (Seiko protection board pure cobalt battery cell) The smartwatch can be fully charged in about 2 hours, and it can be used for 2-3 days after being fully charged. Support 20 days standby time. It has weather display, sedentary reminder, GPS tracking, stopwatch, timer, alarm clock, drinking reminder, music control,search watch, and support women's menstrual cycle.
Samsung Electronics Galaxy Watch 4 44mm Smartwatch with ECG Monitor Tracker for Health Fitness Running Sleep Cycles GPS Fall Detection Bluetooth US Version, Green
- Get ready to crush your wellness goals with body readings right on your wrist
- Better Sleep Starts Here: Wake up feeling refreshed and recharged with advanced sleep tracking; When you go to bed, your Galaxy Watch4 sleep tracker starts monitoring your sleep and SpO2 levels continuously
- Be Smart About Your Heart: Take care of your heart with accurate ECG monitoring and keep an eye on possible atrial fibrillation, a common form of irregular heart rhythm; Share personalized readings with your doctor using the Samsung Health Monitor app on your compatible Galaxy phone
- Make Every Workout Count: Get the most out of every exercise session with advanced workout tracking that recognizes 6 popular activities, from running to rowing to swimming, automatically in just 3 minutes; Stay motivated by connecting to live coaching sessions via your smartphone or to dynamic Group Challenges with your friends
Last update on Friday, May 27, 2022 - 14:47:26 / Affiliate links / Images from Amazon Product Advertising API