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TOZO

TOZO S4 AcuFit One Smart Watch 1.78" AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android

    • Based on 638 reviews
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$42.49 Why this price?
Save $7.50 was $49.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, May 19
Order within 17 hours and 24 minutes
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Color: Black


Features

  • User-Friendly Design with AMOLEDFeaturing an upgraded 1.78'' ultra-clear AMOLED HD Display with 368*448 resolution, which has 25% faster response speed than previous, a wider visual range, lower energy consumption, wider color gamut, and higher contrast, TOZO S4 takes you to experience unprecedented crystal clear visual effects.
  • All-in-One Smart WatchTOZO smart watch is the perfect companion for both men and women, combining a fitness tracker and a stylish accessory all in one. Stay connected with its Bluetooth calling feature, as well as call logs and message notifications.
  • Comprehensive Health MonitoringTOZO S4 adopts an high-precision sensor that accurately measure your heart rate and blood oxygen levels, stress testing in real time. Furthermore, the health watch tracks your sleep patterns to ensure you get the restful night's sleep you deserve, including deep sleep, light sleep, and REM sleep stages.
  • Versatile Fitness TrackerWith over 100 different sports modes, our TOZO S4 helps you stay active and reach your fitness goals. Whether you're running, cycling, or practicing yoga, this watch will accurately track your workouts and provide valuable insights to improve your performance.
  • Worry-free Battery LifeEquipped with a high-capacity 300 mAh battery that ensures up to 7 days of use on a single charge, ultra-long 30 days standby mode, and takes only about 2 hours to fully charge, The activity tracker fulfills your need for long battery life on business trip or travel. Plus, it is waterproof, making it perfect for daily outdoor activities.
  • Bluetooth Connectivity and CompatibilityWhen the TOZO S4 smart watch is connected to the app via Bluetooth, you can control the music player, check today's local weather, and support mobile search functions. TOZO S4 (AcuFit One) syncs seamlessly with iOS 11.0+, Android 9.0+ smartphones. Go to App Store or Google Play to download and install "TOZO Health" for free, then connect our smart watch to your phone to start your smart life journey.
  • Personal AppearanceThe high-strength aluminum alloy shell injects solid protection into the watch. The skin-friendly material strap is designed to fit your wrist better and give you a comfortable touch. At the same time, the S4 smart watch also has a convenient magnetic charging function and provides a variety of personalized watch face options, allowing you to show your personal style as you like.

Brand: TOZO


Model Name: TOZO S4 AcuFit One


Style: Modern


Color: Black


Screen Size: 1.78 Inches


Special Feature: Heart Rate Monitor


Shape: Rectangular


Target Audience: Men、Women


Age Range (Description): Adult


Compatible Devices: Smartphone


Item Package Dimensions L x W x H: ‎6.3 x 4.45 x 0.67 inches


Package Weight: ‎0.15 Kilograms


Item Dimensions LxWxH: ‎6.46 x 4.49 x 0.75 inches


Brand Name: ‎TOZO


Model Name: ‎TOZO S4 AcuFit One


Color: ‎Black


Manufacturer: ‎TOZO


Part Number: ‎S4020


Model Year: ‎2023


Style: ‎Modern


Included Components: ‎Magnetic Charging Cable, Quick Guide& User Manual, TOZO S4 Smart Watch


Sport Type: ‎Cycling, Running


Standing screen display size: ‎1.78 Inches


Memory Storage Capacity: ‎128 GB


Date First Available: November 7, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Affirm Financing
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  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Solid!
Color: Black
Review Image by pk pk
Review Image by pk pk
Review Image by pk pk
Review Image by pk pk
Review Image by pk pk
Great smartwatch! Love the Tozo products. We have several of their headphones and the smartwatch has not disappointed. It's a great price and value. I compared functions of other smart watches and the functions on this are very comparable while saving a ton of money. The screen is very responsive to touch and movement. The colors are vibrant. The health functions are working. It tracks steps, oxygen levels, heart rate, and monitors sleep patterns. I like how it has a wide variety of great looking watch faces. You can even add your own picture to be one of the watch faces. Battery life is good and you can change the settings to save battery or use more (ie - brightness levels, etc). It just depends on how you use the watch. The app on the phone is great and connects easily to the watch (see screenshot). The call functions work great. I have received calls through the watch and I am able to talk and hear through the watch. The speaker is decent. I have also spoken into the watch for some google assistant things. Sometimes that is inconsistent. It allows media controls (pause, skip, etc) which is helpful if running or exercising with the watch. The clock functions have a timer and stopwatch. I also like choosing from the app, which app notifications on my phone to display on the app. As far as I can tell for text messages, you can only view the texts and not reply from the phone. But I'm fine with that as I don't want to try to type on the phone anyway. It's just nice to see what notifications are pinging me without having to pull out the phone. A few things Tozo could improve....It would be helpful if the time and stop watch could run in the background. You have to stay on those screens for them to run. The world clock allows you to add up to 5 cities. Again, an improvement for Tozo would be to add more cities in the search for world times. While the multitude of watch faces is nice, I haven't figured out how to change out the 4 preset faces that are stored on the watch that you can rotate through. It only lets me add and change the 5th preset. It would be nice if I could choose all 5. Other than those few things, I am very happy. I have been testing this for a week now pretty heavily. I am very happy. ... show more
Reviewed in the United States on December 28, 2023 by pk pk
    • Great Budget Smartwatch: TOZO S4 AcuFit One
Color: Black
Review Image by Rod Matthews Rod Matthews
I'm really impressed with the TOZO S4 AcuFit One smartwatch! It's a fantastic option for anyone looking for a feature-packed smartwatch at an affordable price. Here's what I love most about it: Stylish Design: The 1.78" AMOLED display is crisp and clear, and the watch itself looks great on my wrist. It's comfortable to wear all day, even during workouts. All-in-One Functionality: This watch does it all! I can track my activity and sleep, monitor my heart rate and blood oxygen, and even make and receive calls directly from the watch. It's super convenient for staying connected on the go. Great Fitness Tracker: With over 100 sports modes to choose from, the TOZO S4 is a great companion for all my workouts. It accurately tracks my progress and provides helpful insights to improve my performance. Long Battery Life: I can usually get a full week of use on a single charge, which is fantastic. No more worrying about my watch dying in the middle of the day. Waterproof Design: I love that I can wear this watch worry-free all day long, even in the shower or pool. Overall, the TOZO S4 AcuFit One is a great smartwatch for anyone looking for a stylish and feature-packed option at a budget-friendly price. I highly recommend it! ... show more
Reviewed in the United States on April 12, 2024 by Rod Matthews Rod Matthews
    • Excellent inexpensive smartwatch
Color: Black
This is my first smartwatch. I have a Samsung Galaxy s22 & didn't want to spend the money on a Samsung watch. I have had great success with all of the Tozo products & their customer service, so I decided to try their watch. I've only used it about a week, but I am very happy with it so far. It was easy to attach the wristband, download the app, & activate the warranty. The screen is clear, large enough to read & use easily, and the colors are vibrant. The app works great and is easy to use. The navigation on the watch is pretty intuitive as well. I love the variety of features and have loved experimenting with them. Though I haven't tried all of them yet. I can't decide which is my favorite, but it's a tie between having phone features really accessible without carrying out having to get my phone out and the stress level & relax features. Excellent for managing stress. The only things that would make it better for me would be a smaller wristband. I have very small wrists and have to keep it at the tightest notch. And if they had instructions on how to charge it. I felt a little dumb because I couldn't figure out how to charge initially charge it. I'm very happy that I went with this watch. The price point is excellent and it has more than enough features, great screen, easy to operate, and has a great battery life. ... show more
Reviewed in the United States on January 1, 2024 by Tam

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