---
product_id: 601409438
title: "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 (Black)"
brand: "tozo"
price: "184 kr"
currency: ISK
in_stock: false
reviews_count: 13
url: https://www.desertcart.is/products/601409438-tozo-s4-acufit-one-smart-watch-1-78-amoled-screen
store_origin: IS
region: Iceland
---

# 368x448 AMOLED HD Display 7-day battery life, 30-day standby IP68 Waterproof rating 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 (Black)

**Brand:** tozo
**Price:** 184 kr
**Availability:** ❌ Out of Stock

## Summary

> ⌚ Elevate your hustle with TOZO S4 — where style meets smart health.

## Quick Answers

- **What is this?** 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 (Black) by tozo
- **How much does it cost?** 184 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/601409438-tozo-s4-acufit-one-smart-watch-1-78-amoled-screen)

## Best For

- tozo enthusiasts

## Why This Product

- Trusted tozo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **100+ Sports Modes:** From yoga to cycling, optimize your workouts with tailored tracking that fuels your fitness journey.
- • **Advanced Health Metrics:** Track heart rate, blood oxygen, stress, and sleep stages with precision sensors for a holistic wellness snapshot.
- • **Seamless Bluetooth Calling:** Stay effortlessly connected with hands-free calls, message alerts, and call logs right on your wrist.
- • **Crystal-Clear AMOLED Display:** Experience ultra-sharp visuals with 25% faster response and vibrant colors that make every notification pop.
- • **Long-Lasting Power & Durability:** Charge once, wear all week with 7-day battery life, plus swim-proof IP68 design for active lifestyles.

## Overview

The TOZO S4 AcuFit One Smart Watch features a vibrant 368x448 AMOLED display with 25% faster response, Bluetooth call functionality, and comprehensive health tracking including heart rate, blood oxygen, and sleep monitoring. With over 100 sports modes, IP68 waterproofing, and a robust 7-day battery life, it’s designed for professionals seeking a stylish, all-in-one fitness and connectivity companion compatible with iOS and Android.

## Description

Product Description 100+ Sports Modes All-inclusive Fitness Analysis 100+ sports modes tailored to meet all your fitness ambitions, from hikes to mountain climbs. Experience accurate tracking of your calorie expenditure, distance traveled, and more. High-strength Aluminum Alloy Casing Durable casing crafted from high-strength aluminum alloy. High-strength Aluminum Alloy Casing Durable casing crafted from high-strength aluminum alloy. Convenient Magnetic Charging Easy-to-use magnetic charging for added convenience. Convenient Magnetic Charging Easy-to-use magnetic charging for added convenience. Skin-Friendly Material Strap xperience comfort with the skin-friendly material strap. Skin-Friendly Material Strap xperience comfort with the skin-friendly material strap. Ultra-Clear AMOLED Screen Crystal-clear visuals on the 1.78'' AMOLED screen. Ultra-Clear AMOLED Screen Crystal-clear visuals on the 1.78'' AMOLED screen. 100+ Personalized Watch Faces Choose from a variety of 100+ personalized watch faces. 100+ Personalized Watch Faces Choose from a variety of 100+ personalized watch faces. Always-On Display Stay informed with the always-on display feature. Always-On Display Stay informed with the always-on display feature. Stable Connectivity & User-friendly Compatibility TOZO AcuFit One seamlessly syncs with most iOS, Android, and Bluetooth-enabled smartphones. Easily establish a connection with your phone and embark on your journey toward an intelligent life.

Review: Great Watch, Amazing Battery Life! - The TOZO S4 Smartwatch has quickly become a favourite of mine, seamlessly blending style and functionality in a way that feels perfect for everyday use. Design and Display The first thing that caught my eye was the watch's sleek design. It has a modern, minimalist look that’s both stylish and versatile, making it easy to wear with anything. The display is crisp and clear, with colours that really pop, making it easy to read in any light. Whether I'm glancing at notifications or checking the time, everything just looks sharp and vibrant. Everyday Convenience One of the features I love most is the Bluetooth calling. I can take calls and see messages directly on my wrist, which is incredibly handy when I’m busy or my phone is out of reach. It’s a small thing, but it’s made a big difference in staying connected without having to pull out my phone constantly. Health and Fitness Tracking I’ve also been impressed with the health tracking features. The TOZO S4 gives me a real-time look at my heart rate, stress levels, and even sleep patterns. I’ve started paying more attention to how well I sleep, thanks to the detailed insights the watch provides. It’s motivating to see how my sleep habits are improving, and it’s a great reminder to stay on top of my health. Fitness Partner As someone who likes to stay active, the S4’s fitness tracking is a big plus. It covers more activities than I knew existed! Whether I’m running, doing yoga, or trying something new, the watch tracks it all. The feedback it gives has helped me tweak my workouts and stay on track with my fitness goals. Battery Life and Durability Another thing I appreciate is the battery life. It lasts a full week on a single charge, so I never have to worry about it dying on me. Plus, it’s waterproof, which is great for outdoor activities or just not having to worry about it getting wet. Comfort and Style Comfort-wise, it’s a winner. The strap feels soft and light, and the watch itself doesn’t feel bulky or heavy. I also love that I can change the watch face to suit my mood or outfit—it’s a fun way to personalize it. Final Thoughts Overall, the TOZO S4 Smartwatch has been a fantastic addition to my daily routine. It’s stylish, packed with useful features, and incredibly user-friendly. Whether you’re looking to stay on top of your health, keep connected, or want a great-looking watch, the S4 is definitely worth considering.
Review: Highly recommended - The Tozo Smart Watch has exceeded my expectations with its blend of functionality and modern design. **Design and Display:** Its sleek, lightweight build and vibrant, high-resolution display make it a stylish and practical accessory for any occasion. **Performance and Features:** The watch syncs quickly with my smartphone, offering comprehensive health and fitness features like heart rate monitoring, sleep tracking, and accurate GPS. The intuitive user interface and companion app provide detailed insights and customization options. **Battery Life:** Impressively, the battery lasts several days on a single charge, with a convenient magnetic charging dock. **Conclusion:** Overall, the Tozo Smart Watch offers great value, combining style, performance, and a wide range of features at an affordable price. Highly recommended!

## Features

- 【User-Friendly Design with AMOLED】Featuring 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 Watch】TOZO 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 Monitoring】TOZO S4 adopts an high-precision sensor that accurately 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 Tracker】With 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 Life】Equipped 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L1GRYN4 |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Length | 210 Millimetres |
| Band Material Type | Silicone |
| Band Width | 22 Millimetres |
| Battery Average Life | 10 days |
| Battery Capacity | 300 Milliamp Hours |
| Battery Cell Type | Lithium |
| Battery Charge Time | 2 Hours |
| Battery Power | 300 |
| Battery capacity | 300 Milliamp Hours |
| Best Sellers Rank | 42,622 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,398 in Smartwatches |
| Box Contents | Instruction Manual, Magnetic Charging Cable, Quick Guide, TOZO S4 Smart Watch |
| Brand Name | TOZO |
| Case Material Type | Liquid Silicone |
| Cellular Technology | Bluetooth |
| Clasp Type | Deployant Clasp |
| Closure Type | Buckle |
| Colour | Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | any smartphone |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Touch Control / APP/ Button |
| Customer Reviews | 4.0 out of 5 stars 449 Reviews |
| Display Type | AMOLED |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Global Trade Identification Number | 06971681318361 |
| Human Interface Input | Buttons, Touchscreen |
| Item Dimensions | 16.4 x 11.4 x 1.9 centimetres |
| Item Weight | 39 Grams |
| Maximum Display Brightness | 400 Nit |
| Memory Storage Capacity | 128 MB |
| Memory storage capacity | 128 MB |
| Metrics Measured | Heart Rate, Blood Oxygen Level |
| Model Name | S4 |
| Model Number | S4 |
| Operating System | [Proprietary Operating System] |
| Operating system | [Proprietary Operating System] |
| Product Features | Versatile Fitness Tracker with over 100 different sports modes |
| RAM Memory Installed | 128 MB |
| Resolution | 368 x 448 |
| Screen Size | 1.78 Inches |
| Shape | Rectangular |
| Special feature | Versatile Fitness Tracker with over 100 different sports modes |
| Sport Type | Cycling, Fitness, Running, Swimming |
| Style Name | Modern |
| Supported Application | Fitness Tracker, Heart Rate Monitor, Blood Oxygen Monitor, Phone Call |
| Supported Satellite Navigation System | GPS |
| Target Audience | men and women |
| Unit Count | 1.0 count |
| Warranty Type | Standard/Full warranty |
| Water Resistance Depth | 3 Metres |
| Water Resistance Level | Waterproof |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Smart Watch |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |
| Wireless communication standard | Bluetooth |

## Product Details

- **Operating system:** [Proprietary Operating System]
- **Memory storage capacity:** 128 MB
- **Special feature:** Activity Tracker, Email, Text Messaging, Touchscreen
- **Battery capacity:** 300 Milliamp Hours
- **Connectivity technology:** Bluetooth
- **Wireless communication standard:** Bluetooth
- **Battery cell composition:** Lithium Ion
- **GPS:** No GPS
- **Shape:** Rectangular
- **Screen size:** 1.78 Inches

## Images

![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 (Black) - Image 1](https://m.media-amazon.com/images/I/712AP1B29kL.jpg)
![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 (Black) - Image 2](https://m.media-amazon.com/images/I/71dprAjHfZL.jpg)
![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 (Black) - Image 3](https://m.media-amazon.com/images/I/71uLN16C0uL.jpg)
![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 (Black) - Image 4](https://m.media-amazon.com/images/I/71rQKHMGaSL.jpg)
![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 (Black) - Image 5](https://m.media-amazon.com/images/I/7130YHNrboL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Watch, Amazing Battery Life!
*by P***L on 27 August 2024*

The TOZO S4 Smartwatch has quickly become a favourite of mine, seamlessly blending style and functionality in a way that feels perfect for everyday use. Design and Display The first thing that caught my eye was the watch's sleek design. It has a modern, minimalist look that’s both stylish and versatile, making it easy to wear with anything. The display is crisp and clear, with colours that really pop, making it easy to read in any light. Whether I'm glancing at notifications or checking the time, everything just looks sharp and vibrant. Everyday Convenience One of the features I love most is the Bluetooth calling. I can take calls and see messages directly on my wrist, which is incredibly handy when I’m busy or my phone is out of reach. It’s a small thing, but it’s made a big difference in staying connected without having to pull out my phone constantly. Health and Fitness Tracking I’ve also been impressed with the health tracking features. The TOZO S4 gives me a real-time look at my heart rate, stress levels, and even sleep patterns. I’ve started paying more attention to how well I sleep, thanks to the detailed insights the watch provides. It’s motivating to see how my sleep habits are improving, and it’s a great reminder to stay on top of my health. Fitness Partner As someone who likes to stay active, the S4’s fitness tracking is a big plus. It covers more activities than I knew existed! Whether I’m running, doing yoga, or trying something new, the watch tracks it all. The feedback it gives has helped me tweak my workouts and stay on track with my fitness goals. Battery Life and Durability Another thing I appreciate is the battery life. It lasts a full week on a single charge, so I never have to worry about it dying on me. Plus, it’s waterproof, which is great for outdoor activities or just not having to worry about it getting wet. Comfort and Style Comfort-wise, it’s a winner. The strap feels soft and light, and the watch itself doesn’t feel bulky or heavy. I also love that I can change the watch face to suit my mood or outfit—it’s a fun way to personalize it. Final Thoughts Overall, the TOZO S4 Smartwatch has been a fantastic addition to my daily routine. It’s stylish, packed with useful features, and incredibly user-friendly. Whether you’re looking to stay on top of your health, keep connected, or want a great-looking watch, the S4 is definitely worth considering.

### ⭐⭐⭐⭐⭐ Highly recommended
*by M***M on 4 June 2024*

The Tozo Smart Watch has exceeded my expectations with its blend of functionality and modern design. **Design and Display:** Its sleek, lightweight build and vibrant, high-resolution display make it a stylish and practical accessory for any occasion. **Performance and Features:** The watch syncs quickly with my smartphone, offering comprehensive health and fitness features like heart rate monitoring, sleep tracking, and accurate GPS. The intuitive user interface and companion app provide detailed insights and customization options. **Battery Life:** Impressively, the battery lasts several days on a single charge, with a convenient magnetic charging dock. **Conclusion:** Overall, the Tozo Smart Watch offers great value, combining style, performance, and a wide range of features at an affordable price. Highly recommended!

### ⭐⭐⭐⭐ Smart watch
*by S***F on 8 February 2026*

Good value for money

## Frequently Bought Together

- TOZO AMOLED S4 AcuFit One Smart Watch 1.78" Ultra-Clear Screen for Men Women, Call/Answer Fitness Tracker,Sleep Monitor IP68 Waterproof for iOS 11.0+ Android 9.0+ Black
- smaate 3D Screen Protector Compatible with TOZO S4 AcuFit One 1.78” Smart Watch
- MIHENCE Screen Protector Compatible for TOZO S4 Smart Watch, HD Full Coverage TPU Protective Film Compatible for TOZO S4 1.78-inch Smartwatch (6PCS)

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---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-09-28*