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TOZO

TOZO AMOLED S4 AcuFit One Smart Watch 1.78" Ultra-Clear Screen for Men Women, Call/Answer Fitness Tracker, Heart Rate Sleep Blood Oxygen Monitor IP68 Waterproof for iOS 11.0+ Android 9.0+ Black

    • Based on 1,286 reviews
Condition: New
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$34.99 Why this price?
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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Thursday, Mar 6
Order within 11 hours and 57 minutes
Available payment plans shown during checkout

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.

Operating System: NO


Memory Storage Capacity: 128 MB


Special Feature: Touchscreen, Text Messaging, Activity Tracker, Heart Rate Monitor


Battery Capacity: 300 Milliamp Hours


Connectivity Technology: Bluetooth


Wireless Communication Standard: Bluetooth


Battery Cell Composition: Lithium


GPS: No GPS


Shape: Rectangular


Screen Size: 1.78 Inches


Product Dimensions: 6.46 x 4.5 x 0.75 inches


Item Weight: 4.6 ounces


Item model number: S4


Batteries: 1 Lithium Metal batteries required. (included)


Date First Available: November 7, 2023


Manufacturer: TOZO


Standing screen display size: 1.78 Inches


Memory Storage Capacity: 128 MB


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 6

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Meets my Smart Watch needs at a very good price
Color: Black
I am pleased with the comfort and features of this watch. The battery life is good. It’s comfortable to wear on sensitive skin, unlike other watches that caused itchiness. The app is pretty seamless and I haven't experienced any glitches between the watch and the app. There’s a lot of good available data, especially the “Wellness Balance” score. I would love to see a speed increase in the loading of the data. Also, the text on watch faces could be a bit larger, making it easier to read. I would buy again and recommend to friends and family looking for a nice smart watch at a reasonable price. ... show more
Reviewed in the United States on February 20, 2025 by Caduceus26
    • Great watch at an affordable price
Color: Gold
This watch is great for anybody who wants 80-90% of the flagship smartwatch features at a fraction of the cost. It tracked my steps, heart rate, and sleep almost identically to my Garmin Venu 2. The screen is vibrant, the UI is smooth and not laggy at all, and the overall build quality feels solid and looks premium. My only complaints are a lack of synchronization with Google Fit (it does sync with Strava), the notification vibrate feels a little "cheap", I wish the brightness could be turned down a little bit more, and its a tad on the heavy side on my wrist. ... show more
Reviewed in the United States on January 18, 2025 by Adam S
    • Great Watch
Color: Black
Looks like the similar big brand watch. Fits comfortably and is pretty easy to set up and use with the app. Plenty of display options. Charge lasts nearly a week depending on use. I use it primarily as a watch and secondarily for the heart rate and steps tracking. Calorie counter accuracy, who knows. The sleep and stress tracker features are not accurate but I suspect that is true for all smart watches so I don’t fault it for that. I haven’t really used the phone call feature and don’t expect to. Messaging and notifications are convenient but sometimes annoying. That’s just me. This is my second TOZO product and I’m finding that these are pretty good quality products for a great price. ... show more
Reviewed in the United States on October 2, 2024 by Dave
    • Great Smart Watch in the Budget
Color: Black
Review Image by Anyu Pierce Anyu Pierce
I got this an affordable smartwatch for my son which with great style, latest functionality, and impressive battery life. The screen is very clear and easy to navigate. The watch is responsive, with smooth transitions between screens and apps. The fitness tracking features are spot-on, offering accurate readings for heart rate, steps, and sleep patterns. Battery life is another important point to consider for this watch. My son can easily get through multiple days on a single charge, even with heavy usage. I hilghly recommended this Smart watch. ... show more
Reviewed in the United States on December 20, 2024 by Anyu Pierce Anyu Pierce
    • Perfect watch and great battery life
Color: Gold
Review Image by Steve Huebner Steve Huebner
Review Image by Steve Huebner Steve Huebner
I have been wearing this watch for about a month now and it just really works well. The app works really well and helps make it that much better. It has several watch faces to choose from I including your own picture. I like the fact that it mo n itors your sleep habits. That has really opened my eyes on how I sleep. The biggest thing for me beside all the other options is battery life. I did a week long test of wearing 24/7 for a week and this thing held up unbelievably long. After 7 days I still had 35% battery life. No other smart watch I have owned could even come close to that. This watch has become my permanent watch it only comes off when I get a shower. Lol the only con I have is that you can't modify your personal watch face with other info. Definitely not deal breaker. Hopefully they could take care of that with a future update. I would definitely recommend this watch to any one out there. Great price for a fantastic watch. ... show more
Reviewed in the United States on February 20, 2025 by Steve Huebner Steve Huebner
    • reliable, stylish, and worth checking out
Color: Gold
The TOZO AMOLED S4 AcuFit One Smart Watch is a solid choice if you’re looking for a sleek and functional smartwatch. The 1.78” AMOLED screen is super clear and vibrant, making it easy to see everything at a glance. It covers all the basics like heart rate, sleep, and blood oxygen monitoring, and the Bluetooth calling feature is a nice touch. It’s got over 100 sports modes, so it works whether you’re into running, yoga, or something more intense. Battery life is impressive too—about a week on one charge. Plus, it’s waterproof (IP68), so you don’t have to worry about it getting wet. Overall, it’s reliable, stylish, and worth checking out if you want a feature-packed smartwatch that doesn’t break the bank. ... show more
Reviewed in the United States on January 19, 2025 by Carlos

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