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⌚ Elevate your fitness game with style and smarts!
The TOZO S4 AcuFit One Smart Watch features a vibrant 1.78" AMOLED display, real-time heart rate and blood oxygen monitoring, sleep tracking, and Bluetooth call dial functionality. Its IP68 waterproof rating ensures durability during workouts and daily activities, while compatibility with iOS and Android devices makes it a versatile health and fitness companion.





















| ASIN | B0CMTCWZH6 |
| Age Range Description | Adult |
| Band Colour | Rose Gold |
| Band Length | 210 Millimetres |
| Band Material Type | Aluminum |
| Band Width | 22 Millimetres |
| Battery Average Life | 10 days |
| Battery Capacity | 300 Amp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 2 Hours |
| Battery Power | 300 |
| Battery capacity | 300 Amp Hours |
| Best Sellers Rank | 42,044 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,408 in Smartwatches |
| Box Contents | Charging cable, manual |
| Brand Name | TOZO |
| Case Material Type | Aluminium |
| Cellular Technology | Bluetooth |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Colour | Pink-gold |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | iOS, Android |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Touch control |
| Customer Reviews | 4.1 out of 5 stars 513 Reviews |
| Display Type | Digital |
| GPS Geotagging Functionality | Built-in GPS |
| Global Trade Identification Number | 06971681318934 |
| Human Interface Input | Touchscreen |
| Item Dimensions | 16.4 x 11.4 x 1.9 centimetres |
| Item Weight | 39 Grams |
| Manufacturer | TOZO |
| Memory Storage Capacity | 128 MB |
| Memory storage capacity | 128 MB |
| Model Name | TOZO S4 |
| Model Number | S4 |
| Operating System | Wear OS |
| Operating system | Wear OS |
| Product Features | [Notifications, Activity Tracker, Heart Rate Sleep Monitor, Phone Call, Multi-Sport Tracker] |
| RAM Memory Installed | 128 MB |
| Resolution | 368*448 |
| Screen Size | 1.78 Inches |
| Shape | Rectangular |
| Special feature | [Notifications, Activity Tracker, Heart Rate Sleep Monitor, Phone Call, Multi-Sport Tracker] |
| Sport Type | Running |
| Style Name | Modern |
| Supported Application | [Many] |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adult |
| Unit Count | 1.0 count |
| Warranty Type | Standard/Full |
| Water Resistance Depth | 1 Metres |
| Water Resistance Level | Water Resistant |
| 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.
J**S
Lots of functionality and great pricing
I am very impressed with this smart watch. I am finding it very easy to use and navigate around the menus. I bought the white/silver unit and think it looks pretty good. The silicone strap is really comfortable and easy to adjust from small to large wrist. Battery life is excellent in excess of 7 days - this could vary depending on how you use the watch and other factors such as temperature which affect all batteries. There are plenty of face options and you can easily add your own background photo from your phone’s gallery. In this instance I haven’t yet worked out if I can add other functions to my own photo screen but the time is displayed automatically. This could be an advantage for some people who don’t need to see all their health information displayed. I have been receiving message notifications and this does not seem to have impacted on battery life. I also own a Fitbit which can pick up messages but the battery life is impacted on that device. Reading of health data on the S4 is clear and detailed. The watch syncs well with my Android phone - so time is always in tune with the internet. Highly recommend this lovely piece of kit at a reall good price point compared to the famous fruit brand.
T**Z
Interesting very interesting
Basic smart watch. Nice app. Heart rate is questionable. I think the watch is guessing my heart rate. It has decided to work intermittently so I decided to keep it for another time.
J**Y
Great smartwatch at a great price
So this is going to be a positive review based on a purchase price of £30. I honestly cannot fault it. My usual smartwatches cost 10 times more and this watch gives me everything I need. I've had Ticwatches, Pixel and Withings. The interface is smooth with no lag. The screen, what can I say, set at 3 out of 5 is more than enough to be seen on a sunny day. Only had a few days but with everything turned on (except Bluetooth, I'm not bothered about answering calls on a watch) the battery usage is about 8% a day. My gripe with more expensive watches is that the battery lasts a day or so and are constantly on charge. The watch looks premium with the metal frame. My only negative is the lack of additional bands. The fitting is specific to the watch so I won't be able to buy a generic band to switch up the look. Hopefully the strap lasts (it feels as though it will). The app is as good as any and everything is free, no premium subscription and no extra charge for watch faces of which there's plenty. As suggestion to Tozo
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.
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!
R**M
Easy to set up, great display, great value for money
This product is well packaged on arrival, has a premium feel with each component separately packed. Set up is fast and super easy. The highlight is the display, the AMOLED is beautiful, crisp and bright. Most importantly, it’s bright in the sunlight, which is essential for outdoor sports use. It does what it says, and is simply a great purchase for the price.
D**N
Great Budget Smartwatch
I’m a spreadsheet guy, to a fault, and my wife regularly talks dirty to me by asking me to compare products for her. When my most recent smartwatch finally crapped out on me after 2.5 years (Mobvoi TicWatch 3 GPS), I waited to see what was going to pop up on my radar so that I could get started on my next spreadsheet journey. I am firmly entrenched in the Google ecosystem so it was going to be either the TicWatch 5 or the Pixel Watch 2… but neither of them were really what I wanted. The TW5 is bulky and expensive and the PW2 is too small… and, also, expensive. I knew there had to be a budget smartwatch on Amazon that could get the job done until the next TW and/or PW came out so I started looking. I stumbled on this one, the S4, because I recognized Tozo as a maker of premium quality yet budget-friendly earbuds. So, I took the leap and here’s my review after 10 days. Battery life: When you unbox your watch, there’s a sticker on the face that advises you to fully charge the watch prior to turning it on and using it. I connected the charger and the watch was already at 94%, so I turned it on and let it rip. That was last Tuesday afternoon (January 9, 2024); my watch died sometime in the middle of the night this past Tuesday morning (January 16, 2024) between 2300 and 0630. When I went to bed it was still at 9%. My TW, initially, held strong at about 48 hours before it needed to charge and, eventually, it trickled down to about 7 hours right before it died. This thing does exactly what I expect it to, which is to simply notify me of calls, texts and emails, just like my TW did, and it lasted 7 days strong on one charge. Also, from totally dead to 100% battery only took about 75 minutes. I am very happy about this. *5/5 UPDATE 01/28/24: I have had this watch for almost three weeks and I just charged it for the THIRD TIME today. Changing my battery life grade by giving it +1, so it is now *6 / 5. Accessories: The charging cable that the watch comes with is proprietary (bummer) and measures about 24.5 inches (WTF?). It is remarkably short. For comparison, the Mobvoi charger that my TW came with measures just shy of 36 inches. Additionally, the magnets that keep the charger attached to the watch are laughably weak. I could pick my TW up by the charging cable when it was attached and I couldn’t even MOVE the S4 itself while the charger was connected because the magnets aren’t strong enough to keep it in the right spot. *1/5, a one (1) only because they include the cable in the box, otherwise it would be zero (0). Continue reading to learn about the watch band… Comfort: The S4 comes with a high-quality silicone band with “Tozo” stamped on it. It’s very similar to what you might see on an Apple Watch, down to the band overlap going under the band to get out of the way. The watch itself, however, isn’t the most comfortable on the wrist and sits kind of weird, most likely due to how large it is. It is noticeably lighter than the TW3 though (for those of you who have one, or who were wondering), coming in at 1.4 oz compared to 2.3 oz (almost 40% lighter). *3.5/5 Screen: The 1.78” AMOLED on this thing is bright - like BRIGHT bright. Luckily, it has 5 brightness settings that you can easily select from, either directly on the watch or in the accompanying app. You can also change the screen time-out intervals in increments of 5 seconds, from 5 seconds up to 30 seconds. The colors aren’t oversaturated and they’re quite crisp. You can also turn on Do-Not-Disturb and/or Silent Mode at night to keep it from making noise when it's quiet. There really isn’t anything to complain about here. *5/5 Watch faces: The advert describes 100+ watch faces and as of right now (01/19/2024), there are a total of 246 - 3 of which are “custom,” meaning you can use a photo of your choosing as the background. The other 243 fall into categories titled, “Simple,” “Personality,” “Colorful,” “Pointer,” “Business Style,” and “Festival.” The sheer number is a bit overwhelming, but then again, so are most of the watch faces. It’s a WYSIWYG shop here: there are no customizable complications and the vast majority of the faces are either distractingly colorful or needlessly busy. The one that I’m currently using, called “Intelligence - Future,” has a comparatively subdued black and blue color scheme but there are some confusing inclusions and omissions. For example: there’s a battery icon at the top right of the screen but there’s also a battery percent reading in the face. Additionally, there are three placeholders for complications; two of them are in use (the previously mentioned battery percentage and heart rate) but the one in between them is empty. Again, there’s no way to select a complication to place there… it’s just a black circle. One of the most frustrating aspects of this watch so far (which is relative, of course) is that there is no option to make your own face or modify the ones that are in the Dial Center. I’ve searched far and wide to see if any savvy devs out there have figured out how to jack into this OS, or even knows what type of OS this thing runs, but so far it seems like no one has had any luck. Hey Tozo - give us a watch builder or at least the option to add/modify complications! *3/5 Processor and OS: Tozo advertises the S4 as having a “high-precision wear chip,” but there doesn’t seem to be any indication of what type of chip is actually running the watch. The same goes with the OS - my assumption is that it’s some kind of RToS, similar to what the One Plus Watch runs/ran, which explains how/why it's so responsive. Honestly though, it doesn’t really matter because it’s snappy and rarely stutters in day-to-day use. *5/5 Intelligent Message Notification: Coming from a WearOS device, I guess I was accustomed to a more robust notification system. Not that the S4 is lacking, because it will definitely let you know when you’ve received a message or email or phone call, but not being able to respond directly from the watch is kind of a bummer. It’s definitely not a deal breaker, but it would be nice to be able to use an on-screen keyboard or voice-to-text to quickly reply to texts and instant messages. In the Tozo Health app, you can create a few canned responses if you decline a call but they can’t be used to respond to any other type of communication. Additionally, you need to be sure to go into the Notification and Reminders section of the app, select “App messages,” then manually select which apps you give permission to notify you otherwise you’ll likely miss them until the next time you look at your phone. Another aspect that took some getting used to is the notification icons that the watch uses. It recognizes FB Messenger and shows the blue bolt-looking thing; it also recognizes Outlook and shows the blue email icon, but it uses a generic one for text messages that looks like a 4-leaf clover. This is just me being picky, I suppose. The main factor to remember here is that this thing concurrently notifies you when notifications come in. My watch vibrates, literally, at the same time as my phone. Also, the vibration motor in this thing is SUPER strong so you will definitely know when it’s going off. I couldn’t say that about my TW. *4/5 Bluetooth Calling: I’ve only used this feature once so far, and it didn’t sound great (the caller’s voice was tinny and distant), but I was outside and the ambient noise level was pretty high. Obviously, this isn’t going to replace a BT or wired headset, or the speakerphone on your device - but to answer a call in a pinch until you can get to your phone, it is totally passable. You can add up to 10 frequent contacts in the app which will sync to your watch so that you can initiate a call if your phone is close by but out of reach. That’s a pretty cool feature that I don’t recall my TW having. *4/5 Fitness Features: Gonna be totally honest - I didn’t buy this watch for the fitness features so I haven’t tested them, nor do I suspect that they would be accurate anyways. Standard on the watch, when swiping right to left, are the HR monitor, Sleep monitor, Stress monitor, Weather screen, and Activity monitor. Based on the comfort of the watch, I’m not interested in wearing it to bed to test the sleep monitor nor would I trust it to keep track of my HR. *X/X Software quirks: Some of the stranger software quirks that I’ve noticed so far are… *The rotating crown employs a satisfying mechanical haptic "bump" when you rotate it, and it does a serviceable job of assisting with menu and screen navigation but when the display is on, rotating the crown will cycle through the five watch faces that live on the device. So, if you’re wearing a long sleeve shirt, sweatshirt, or have short hands and put them in your pockets, you may inadvertently swap your watch face. I’ve done it a few times and it’s becoming quite annoying. *The screen has to stay on, and on the timer module, for the timer function to continue counting down. I recently set a timer for 5 minutes then clicked on the crown to return to the home screen and went about my business. It took me quite some time to realize that the timer should have gone off long before then and when I went back into my watch, the timer had reset / the function ended. Overall: For the price, and the features, I couldn’t be more pleased with this purchase. The S4 does exactly what I need it to, which is to help me keep my eyes off of my phone - and tell me the time every once in a while. It’s taken a little getting used to the shape (i.e., rectangular [APPLE - BARF!!!] vs circular [Google - HOORAY!!]) but, to be honest, it works much better for reading notifications and not having to worry about square notifications getting cut off by round bezels. The battery life is INSANE, the screen looks great, and it stays connected to my phone consistently. Anyone looking for a high-quality, budget smartwatch, should definitely consider this one.
A**I
Amazing
Very good look
H**N
Muazzam bir görsellik
Yeni kullanmaya başladım mükemmel fakat tek bir sıkıntı var cihazda Türkçe dil yok
P**O
buon rapporto qualità-prezzo
Al momento questo smartwatch costituisce l’ultimo modello della serie prodotto dall’azienda Tozo. Avevo già provato i precedenti e ne ero rimasto soddisfatto per il rapporto qualità prezzo e anche in questo caso confermo l’ottimo lavoro fatto dell’azienda nel proporre uno smartwatch con le principali funzioni di base che - allo stesso tempo - permette al cliente di evitare di spendere le alte somme di denaro che richiedono i top di gamma di altre marche più famose. Per quanto riguarda le caratteristiche esterne: lo smartwatch è leggero e si adatta bene al polso (il mio è di media grandezza). Il quadrante è leggero, comodo da indossare e di buona fattura. Lo schermo è sufficientemente grande per navigare con comodità nel menù delle funzioni. La cassa è di fattura tale per cui appare resistente oltre che bello esteticamente, Il display è ampio e muoversi fra le varie funzionalità risulta comodo e intuitivo. Per quanto riguardo le funzionalità: ho provato tutte le principali funzionalità e ritengo che il livello di prestazioni sia soddisfacente: in particolare i dati ottenuti relativamente al monitoraggio dell'attività fisica, del battito cardiaco e del sonno sono stati precisi e utili per intervenire sul miglioramento delle relative attività. Vi è la possibilità di fare e rispondere alle chiamate e di leggere le notifiche. Altrettanto intuitiva, chiara e ben fatta è l'app TOZO HEALTH (gratuita) utile e comoda da abbinare allo smartwatch sia per regolarne le funzioni sia per visualizzare su uno schermo più ampio i dati archiviati. La durata della batteria è assolutamente apprezzabile e personalmente mi dura circa una settimana facendone un uso costante e quotidiano. In conclusione: lo consiglio a tutti coloro per i quali è sufficiente avere uno smartwatch che offra le funzioni di base e a cui interessa più che altro rimanere in una fascia di prezzo molto più contenuta rispetto ad altri modelli che - pur essendo per altri aspetti più sofisticati - richiedono anche di dover spendere molto di più.
T**A
Die Uhr ist Klasse
Die Uhr ist super Für richtige Sport Leute fehlen noch einige Sportarten
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