---
product_id: 601409438
title: "TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard"
brand: "tozo"
price: "€ 42.93"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/601409438-tozos4-acufit-one-smart-watch-large-amoled-screen-for-men
store_origin: FI
region: Finland
---

# 368x448 AMOLED HD Display 7-day battery life, 30-day standby IP68 Waterproof rating TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

**Brand:** tozo
**Price:** € 42.93
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard by tozo
- **How much does it cost?** € 42.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/601409438-tozos4-acufit-one-smart-watch-large-amoled-screen-for-men)

## 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

TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

## Features

- 【User-Friendly Design with AMOLED】Featuring an upgraded 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 smartwatch 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 a high-precision sensor that accurately measures 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 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 a business trip or travel. Plus, it is waterproof, making it perfect for daily outdoor activities.
- 【Bluetooth Connectivity and Compatibility】When 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+, and Android 9.0+ smartphones. Go to the App Store or Google Play to download and install "TOZO Health" for free, then connect our smartwatch to your phone to start your smart life journey.
- 【Personal Appearance】The 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 style as you like.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L1GRYN4 |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #31,877 in Electronics ( See Top 100 in Electronics ) #689 in Smartwatches |
| Customer Reviews | 4.2 4.2 out of 5 stars (600) |
| Date First Available | November 7, 2023 |
| Item Weight | 39 Grams |
| Item model number | S4 |
| Manufacturer | TOZO |
| Memory Storage Capacity | 128 MB |
| Product Dimensions | 6.46 x 4.5 x 0.75 inches |
| Ram Memory Installed Size | 128 MB |
| Standing screen display size | 1.78 Inches |

## 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

![TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard - Image 1](https://m.media-amazon.com/images/I/712AP1B29kL.jpg)
![TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard - Image 2](https://m.media-amazon.com/images/I/71dprAjHfZL.jpg)
![TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard - Image 3](https://m.media-amazon.com/images/I/71uLN16C0uL.jpg)
![TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard - Image 4](https://m.media-amazon.com/images/I/71rQKHMGaSL.jpg)
![TOZOS4 AcuFit One Smart Watch Large AMOLED Screen for Men Women, Bluetooth Call Dial Fitness Tracker, Heart Rate and Blood Oxygen, Sleep Monitor, IP68 Waterproof, Workout for iOS Android (Black)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard - Image 5](https://m.media-amazon.com/images/I/7130YHNrboL.jpg)

## Available Options

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

## 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 Finland*
*Store origin: FI*
*Last updated: 2026-02-22*