TOZO - S4 Smartwatch for Men Women,1.78" AMOLED Screen,Health Tracker,7-Day Battery,100+ Sport Mode,Call/Answer,iOS/Android - Gold - (2026)
Customers are saying
Customers consistently note that this product offers an impressive battery life that performs reliably. Additionally, users appreciate how simple the device is to both set up and operate. Overall, the feedback highlights a user-friendly experience that meets expectations.
Color
GoldFeatures
1.78" Ultra-Clear AMOLED HD Display
Featuring a vibrant 1.78" AMOLED screen with 368x448 resolution, the display offers 25% faster response, wider color gamut, higher contrast, and lower power consumption. Experience crystal-clear visuals with a broader viewing range, making it easy to read notifications, track workouts, and navigate menus even under bright sunlight.
Bluetooth Calling & Smart Notifications
Stay connected directly from your wrist. Make and receive calls via Bluetooth without reaching for your phone. Get instant vibration alerts for messages, call logs, and app notifications—keeping you informed during workouts, meetings, or daily activities while your phone stays in your pocket or bag.
100+ Sports Modes & IP68 Waterproof Design
Track over 100 activities including running, cycling, yoga, and more. The watch records heart rate, calories, distance, and performance insights in real time. With IP68 waterproof rating, it withstands sweat, rain, and swimming—making it perfect for intense workouts and outdoor adventures without damage.
24/7 Health & Sleep Monitoring with REM Detection
Monitor your well-being continuously with all-day heart rate and real-time stress tracking. Advanced sleep analysis detects deep, light, and REM sleep stages to provide comprehensive insights into your sleep quality, helping you adjust routines for more restful nights and better overall health.
7-Day Battery with 30-Day Standby & Fast Charging
Enjoy up to 7 days of typical use on a single charge and 30 days in standby mode, powered by a 300mAh battery. Fully recharge in just 2 hours via magnetic charging. Compatible with iOS 11.0+ and Android 9.0+, it also offers weather updates, music control, and customizable watch faces for daily convenience.
Specifications
- Screen Size45 millimetersTouch ScreenYesOperating System CompatibilityAndroidOperating SystemAndroidApp CompatibleYesBuilt-in Storage0.125 gigabytes
Reviews
Rating 4 out of 5 stars with 7 reviews
- Battery Life (4)
- Ease of Use (3)
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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Experience clarity and connection with the TOZO S4 Smartwatch. It features a vibrant 1.78" AMOLED display with 368x448 resolution for sharp visuals and wide viewing angles. Stay in touch using Bluetooth calling and notifications, so you never miss important messages or calls.Monitor your wellness with 24/7 heart rate tracking, stress detection, and advanced sleep analysis that identifies deep, light, and REM stages. Track over 100 sports modes like running, cycling, and yoga, with detailed metrics to help you improve performance. The watch is IP68 waterproof for worry-free use in rain or during workouts.Enjoy up to 7 days of battery life on a single charge, with a 30-day standby mode for extended use. Compatible with iOS 11.0+ and Android 9.0+, it offers convenient features like weather forecasts, music control, and customizable watch faces. Sleek and durable, the TOZO S4 is your stylish companion for an active, connected lifestyle.

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TOZO Watch 1 Smart Watch for men and women works seamlessly with iPhone, Samsung and Android phones, built with a crisp 1.95" AMOLED Touch Display, sturdy metal bezel and practical rotating crown for easy operation & one-touch quick menu access. As a powerful fitness activity tracker with built-in GPS and barometer, it records outdoor routes, pace and altitude, supporting 100+ sports modes for running, cycling, swimming, hiking and gym training; rated 5ATM waterproof for daily wear and swimming use. Enjoy hands-free Bluetooth calling and on-wrist Bluetooth music control, alongside full 24/7 health monitoring covering real-time heart rate, SpO2 blood oxygen, stress tracking and detailed sleep analysis for deep sleep, light sleep and REM periods. Check real-time local weather directly on the watch, receive sedentary reminders, and sync all workout and health data to the TOZO Health App to manage your fitness and wellness goals conveniently.

TOZO S3 Smart Watch is a versatile fitness activity tracker smartwatch for men and women, fully compatible with iPhone, Samsung and Android smartphones, equipped with a vivid 1.83-inch HD full-touch color display featuring 240*284 resolution, outstanding color reproduction and multiple customizable watch faces for personalized styling; built-in premium microphone and speaker support hands-free Bluetooth calling to make and answer calls directly on the watch while receiving text message notifications, so you never miss important communications during workouts, commutes and daily activities. Boasting 100+ sport modes and professional fitness analysis, this smartwatch automatically records steps, distance, calories burned and active minutes, while delivering detailed sleep pattern tracking to evaluate your sleep quality. Connect via Bluetooth with the free TOZO Health App to control mobile music playback, view real-time local weather and activate the phone search function; powered by a 300mAh large-capacity battery, it offers extended endurance lasting up to 10 days under auto heart rate monitoring mode or 7 days with instant detection mode, and comes with an IP68 water-resistant rating suitable for daily wear during rain, sweating and dishwashing.
| Pros for TOZO - S4 Smartwatch for Men Women,1.78" AMOLED Screen,Health Tracker,7-Day Battery,100+ Sport Mode,Call/Answer,iOS/Android - Gold - (2026) | |||
|---|---|---|---|
| Battery Life, Ease of Use | Battery Life, Ease of use, Overall Performance, Sleep Tracking, Price | Build Quality | There were no pros for this product— |
| Cons for TOZO - S4 Smartwatch for Men Women,1.78" AMOLED Screen,Health Tracker,7-Day Battery,100+ Sport Mode,Call/Answer,iOS/Android - Gold - (2026) | |||
| There were no cons for this product— | Band, Connectivity, GPS | There were no cons for this product— | There were no cons for this product— |

















































