






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























| 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 |
P**L
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.
M**M
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!
S**F
Smart watch
Good value for money
M**O
Amazing product
It’s over three weeks I have used this gorgeous amazing fabulous smart watch and have found it flawless and accurate as described by the seller it does what it says the amazing parts is the battery performance after 5 days of use am still left with 56% it sounds crazy but that is the simple truth this has been my preferred watch though I got Apple Watch which needed charging every day , this smartwatch beat apple and other watches which come with so much money the only thing with this watch you can’t make payment as in Apple Watch.
L**Z
Waste of money
Stopped working after 3 months. Save your money and buy a different watch.
S**R
Actually better than I hoped for funtion wise big let down on Strap
I had a Fitbit and just was not happy with the screen, it was too hard to see of course there is a model that is in colour though, but I had my eye on the Tozo S3 so I decided to get it, but discovered the S4 instead and the reviews encouraged me to buy it, now first of I will do another review in six months and then one in a year and if all goes well be back in two years, have a feeling I will be,The Fitbit cost $135 while the TOZO S4 cost $60 about 50 Sterling, I can now see the screen which you have so many choices of Screens you will never be bored LOL, this watch does more than the Fitbit, Looks better, feels better, and is so comfortable really give this 10 out of ten, the strap you will have to put on it, and you will have to charge it, but everything is in the box and once done, so easy to use esp with the TOZO Health app OMG yes Free and full Features, I will see you again in six months with an update, but based on how reliable the S3 was I would say but this, I certainly will be sticking with this brand, which by the way has all the features of an Apple Watch. I am leaving what I said when I got it cause I meant it, but now I have two issues, first one is a big one there are no bands you can buy for this Watch, and even after only one day wear my wrist gets sore and the skin starts to die, so if your sensitive do not but this watch as a simple replace wrist band is not available, but I have ordered a 20mm and a 22mm Strap to see if one of them works, after measuring the watch I decided to play it safe order both sizes and hopefully one will work, I suspect the 22 mm will work, I will come back and let you know, second issue The Battery is only good for less than 3 days while in full use, Now for me the fact you can get bands for the s3 s2 and apparently s5 when it comes not sure why they skipped the s4, so add around 15 Euros or about 12 pounds if you are in UK when buying the watch, I will come back and let you know which if any of the bands I went for works. Well the and is no and my skin even when switching wrists is still affected rendering the Warch no good for me big letdown. I see you can change the band with the S5 but decided to go try another brand / dotn P66D will leave a review on that one too.
Z**A
Surprisingly amazing
Honestly really surprised me, very responsive and accurate step tracker, interface is nice and app is good asw, for the price genuinly couldn’t have asked better, I’m impressed
M**S
Easy to use
Really happy with this watch. It does a lot more than my last one. It was an earlier version TOZO.
C**N
Bien
L'article est bien et l'emballage était soigné
ا**س
Elegant multifunctional smart watch
I got this TOZO S4 smartwatch 1 month before .It is elegant ,multifunctional and user friendly with a reasonable price. It helped me with my health issues like sleep study, heart rate and oxygen saturation,mainly when using TOZO Health app, but I hope to get another app. for other functions of the watch.I had an issue with the watch, but the customer service helped me quickly to solve it.
A**I
Amazing
Very good look
H**N
Muazzam bir görsellik
Yeni kullanmaya başladım mükemmel fakat tek bir sıkıntı var cihazda Türkçe dil yok
R**O
Las funciones y el cierre de pulsera de Mariposa
Reloj con buenas características y completo pero le falta calidad. Llevo 2 comprados y ambos se han estropeado en unos días al meterlos en agua. Según la descripción es resistente al agua IP68 y apto para nadar con el, pero los 2 han dejado de funcionar. Voy a darle la tercera oportunidad porque el reloj en si me gusta y doble todo la pulsera de mariposa con el cierre interior que es mucho nas cómoda sin tener la típica trabilla molesta. Vuelvo a pedir uno a ver si por fin puedo hacer uso del rejoj en condiciones......
Trustpilot
2 months ago
2 months ago