TOZO - S4 Smartwatch for Men Women,1.78" AMOLED Screen,Health Tracker,7-Day Battery,100+ Sport Mode,Call/Answer,iOS/Android - Black - (2026)
Customers are saying
Customers are enthusiastic about the product's impressive battery life, which consistently meets user expectations. Additionally, many find the device very easy to set up and operate, highlighting its user-friendly design. Overall, the feedback reflects a high level of satisfaction with both its performance and accessibility.
Color
Black1.78" 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.
- Screen Size45 millimetersTouch ScreenYesOperating System CompatibilityAndroidOperating SystemAndroidApp CompatibleYesBuilt-in Storage0.125 gigabytes
Reviews
Rating 4.3 out of 5 stars with 6 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.

This smartwatch offers extensive functionality with over 100 sport modes—including running, cycling, swimming, and tennis—delivering detailed exercise tracking for various activities. Built with an IP68 waterproof rating, it withstands outdoor use, rain, and handwashing. Seamlessly connect to its companion app to manage notifications, customize watch faces, set alarms, and review exercise history. Stay connected on the go with call and message support, including alerts from major social platforms. Powered by a 300mAh battery, it delivers 5–7 days of typical use or up to 15 days in power-saving mode, recharging fully in just 2 hours. Compatible with both iOS 9.0+ and Android 5.0+, it syncs easily with smartphones and features a 1.83-inch display, 240×284 resolution, Bluetooth 5.1, app-assisted GPS, and convenient magnetic charging.

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.

Built to withstand the demands of daily life, the Bip 6 is an everyday smartwatch that seamlessly integrates high-performance fitness tracking with elegant design and smart features. With advanced health technology, intelligent coaching, and seamless connectivity, this smart watch empowers users to stay active, connected, and in control - making every moment count. Compatible with Android 7.0+ and iOS 14.0+ smart devices.
| Pros for TOZO - S4 Smartwatch for Men Women,1.78" AMOLED Screen,Health Tracker,7-Day Battery,100+ Sport Mode,Call/Answer,iOS/Android - Black - (2026) | |||
|---|---|---|---|
| Battery Life, Ease of Use | Overall Performance, Ease of Use, Battery Life | Battery Life, Ease of Use | Overall Performance, Battery Life, Features, Screen Size, Comfort |
| Cons for TOZO - S4 Smartwatch for Men Women,1.78" AMOLED Screen,Health Tracker,7-Day Battery,100+ Sport Mode,Call/Answer,iOS/Android - Black - (2026) | |||
| There were no cons for this product— | Accuracy | There were no cons for this product— | There were no cons for this product— |












































