Samsung Galaxy Watch4 40mm
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The flagship watch of 2021 became the first gadget from the South Korean giant with the new Wear OS operating system, created by Samsung in partnership with Google. The manufacturer also installed the new Exynos W920 processor and increased the memory capacity—now the watch has 1.5 GB of RAM and 16 GB of internal storage. The 40-mm version features a reduced 1.2-inch screen and, accordingly, smaller dimensions, while the case still meets the military standard MIL-STD-810 and water resistance IP68, allowing submersion in water up to 50 meters deep.
Inside, there is a battery with a capacity of 247 mAh, which should provide up to 40 hours of battery life under standard usage conditions. Regarding health and sports, the Samsung Galaxy Watch4 is top of the line: the model can measure blood pressure, ECG, and blood oxygen levels, count heart rate, monitor sleep, and even determine the nature of snoring, while the new Samsung BioActive sensor can analyze body composition in real-time, including fat, skeletal muscles, and water content. Thanks to the built-in microphone and speaker, the device can not only display incoming calls and messages but also answer calls and use the watch instead of a phone, and the presence of NFC allows for payment of purchases via Samsung Pay.
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Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Samsung 2026 - new arrivals, bestsellers, and the most relevant models Samsung.
Buy Samsung Galaxy Watch4 40mm
All prices 13 →Please clarify the relevant details with the store manager!
| £85.00 |  | ||||
Smart Watch Samsung HR GPS Galaxy Watch 4 - Grey Grey refurbished 6782072649010 | £85.00 |  | |||
Smart Watch Samsung GPS SM-R860 - Pink Pink refurbished 6781833739391 | £99.00 | | |||
Smart Watch Samsung HR GPS Galaxy Watch 4 (40mm) - Silver Silver refurbished 6782038805672 | £100.00 | | |||
Smart Watch Samsung HR GPS Galaxy Watch 4 - Pink Pink refurbished 6781769493531 | £137.00 | | |||
2 0 5 4 |
This anniversary is hostile with its design and functionality. The screen is one of the best, like I'm a bachelor at the birthdays, and a body of preparations from the finest materials, so that it can be made resistant to fraying. a wonderful screen, the case is resistant to sagging, you can win as a bluetooth headset to connect to the dialer if the phone is near another room that sound is drastic, the microphone is bad, the ECG does not work, the charge lasts for 1.5-2 days, after a few months the GPS stopped catching satellites  EcoCat: use Samsung Galaxy Watch4 40mm more than year |
I bought it for a girl after she decided to switch from an iPhone to an android (yes, this also happens), and after the transition, Apple Watch Series 3 was no longer needed. She didn’t miss the iPhone, but she didn’t have enough Apple Watch, the choice fell on this model, first of all she liked the color and design. They took it, of course I managed to use it myself :) They connect to any android smartphone without problems, after installing the application it pulls up additional modules for work and then everything connects. In general, an excellent alternative to Apple Watch, a full-fledged operating system, everything works just as smoothly, beautiful animation everywhere, a bright display, a million of all kinds of workouts and applications that can be downloaded from Google Play right in the watch, there is a play market for watches. For the sake of interest, I even went through the browser to the football site and watched a couple of video reviews of the matches. It is possible to talk through the clock, by the way, even quite acceptable sound. After the watch gets wet, there is a self-cleaning function, the watch makes some kind of dull ringing and the water that has flowed into the speaker flies out of there. The main functionality works very accurately, step measurement, sleep and physical activity analyzer, it's all on top. Measurement of pulse, oxygen in the blood, that's all for sure. Also worth noting is a very pleasant to the body strap. Straps are not a problem to pick up from any watch, to your taste. In terms of autonomy, everything is about the same as Apple Watch, if constant heart rate measurement is enabled, then autonomy is 2 days, or even less, without it up to 3 days. - optimal size - for all the advantages you have to pay autonomy  Bogdan K: use Samsung Galaxy Watch4 40mm few months |
A fantastic model, up-to-date for today! After using the Gear S2, the leap in performance is enormous. The large display is of very high quality, and the operating system is awesome. Lots of features and sensors. It's been two months, and I actively use most of the functions. Body composition tracking, heart rate monitor, very detailed workout recording (including elevation changes on the route if running or cycling), calls (the speaker is good, and the microphone is reliable, you can talk directly from the watch), notifications. I'm very pleased with the presence of Google Pay. It's a special thrill to control it with hand gestures - answering/declining a call, launching an assigned function (for me, it's Google Pay) is quite convenient, especially when your hands are full. Battery life is great! With all the features turned on, like Wi-Fi, automatic workout tracking, heart rate monitor, gestures, always-on display, the watch lasts for two days of active use. And, of course, the watch is very stylish! Both the overall appearance and the look of the Samsung watch faces. I highly recommend buying it! Battery, screen, workouts, calls from the watch, numerous sensors, gesture control, Google Pay, Samsung watch faces, built-in memory (6 GB available, enough for several offline playlists in the YouTube Music app). The watch is very comfortable and almost unnoticeable when worn, at least on my wrist. A small downside is that when measuring body composition, you have to tighten the strap much tighter, about 4 notches more than when wearing it. Otherwise, it complains and asks you to "press the watch closer." However, this only takes about 20 seconds a day and doesn't cause much discomfort. Nikita Zander: use Samsung Galaxy Watch4 44mm few months |
Samsung Galaxy Watch4 configurations
| Price for Samsung Galaxy Watch4 | ||||
|---|---|---|---|---|
 | Samsung Galaxy Watch4 40mm | from £85.00 | 13 offers | |
 | Samsung Galaxy Watch4 40mm LTE | from £73.00 | 7 offers | |
 | Samsung Galaxy Watch4 44mm | from £66.00 | 7 offers | |
 | Samsung Galaxy Watch4 44mm LTE | from £63.00 | 15 offers | |
The first watch with Wear OS
The flagship watch of the South Korean company Samsung in 2021, as befits a premium device, offers everything you need for convenient use, and even more. These are high-quality materials, and a set of various sensors for monitoring the state of health, and almost unlimited possibilities. But, perhaps, the feature of the fourth generation is precisely the “hardware”: this is the first Samsung watch in many years without the Tizen operating system. Instead, Wear OS is used, and a completely new version, for which Samsung and Google have joined forces to create. And this is good news for those users who scolded Tizen OS and remembered the good old Wear OS with nostalgia. And if you add to this the new Exynos W920 processor and increased memory (1.5 GB of RAM and 16 GB of ROM), you get fast work, smooth interface, instant application launch and close interaction with other gadgets of the ecosystem like wireless headphones, TV, etc. d. For example, right from your wrist, you can enable noise cancellation on your headphones or open an app on your smartphone. The only caveat is that the watch is not compatible with the iPhone, although lovers of "apple" gadgets are unlikely to need it.
In addition to displaying incoming calls and notifications, the device allows you to answer calls, make payments with Samsung Pay, give commands to the Bixby voice assistant and download your favorite playlist while listening to music without a smartphone.
Personal physician and trainer
Another innovation was the Samsung BioActive sensor, which can measure ECG and blood pressure in real time. However for a full analysis, you need the Samsung Health Monitor application, and it is available only on Samsung Galaxy phones. In addition, the watch measures heart rate and blood oxygen levels, counts the number of steps taken and calories burned, monitors sleep, determines the nature of snoring, and even knows how to analyze body composition by determining the amount of fat, skeletal muscle and water in the body.
The big problem for owners of wearable devices is battery life, and you need to understand that the more functions, the less time a smartwatch will work on a single charge. The Samsung Galaxy Watch4 has a 247 mAh battery, which will last a maximum of several days. If you actively train and turn on automatic SpO2 measurement and the Always On screen, you will have to charge the gadget daily.
Design
By the way, the range also includes a 44mm version and a Galaxy Watch4 Classic model with a branded rotating bezel. But we would recommend the 40-mm Galaxy Watch4 to the female half — smaller and more accurate, with a durable aluminium case, a small Super AMOLED display with a diagonal of 1.2" and weighing only 26 g. At the same time, the younger version retained compliance with the MIL-STD-810 protection standard and water protection IP68.
