Samsung Galaxy Watch4 40mm 4G LTE Smart Watch, Black (UK Version)

Product Information

Blood oxygen is for fitness and wellness purposes only and not intended for use in detection, diagnosis, treatment of any medical condition or disease. The measurements are for your personal reference only. Please consult a qualified medical healthcare professional for advice.

It's always best to follow the recommended charge time stipulated in the Owner's Manual. Charging your Galaxy Watch4 overnight could potentially weaken your battery in the long run, so consult the Manual before doing so. Typical value tested under Samsung laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. Actual battery life may vary depending on network environment, usage patterns and other factors. The stats you’ll get include a body fat percentage score, skeletal muscle, fat mass, body water and BMI. It’ll also give you a rough idea of the healthy range for your sex, weight and height. Helping to cement that concept is the Super AMOLED screen and I haven’t seen a smartwatch yet that can compete with the vibrancy found here. On occasion, I’ve found myself simply admiring various watch faces because of how colourful they appear on the Galaxy Watch 4.For instance, when compared with the results from the Withings Body Cardio, the Galaxy Watch 4 was spot on with my BMI count and surprisingly close with my body water levels. The only issue is that at the start of each Body Composition reading, the Galaxy Watch 4 asks you to manually input your most recent weight count, so it’s not a complete replacement for a set of scales. Still, this technology shows a great deal of promise and I’m interested to see how it’ll be expanded upon in the future. The 44mm Galaxy Watch 4, which is the model we reviewed, is powered by a 361mAh battery, and battery life proved strong during our testing time - we found the smartwatch would last at least two days from a single charge even with intensive use, and if you’re not regularly using fitness features, you can expect the watch to last for a full three days. The Watch 4 Classic is slightly larger at 42mm or 46mm, has a stainless steel case and rotating bezel; the plain Watch 4 comes in 40mm and 44mm sizes and has a low-profile touch bezel and an aluminium case, as found on the Galaxy Watch Active Series. After spending a good deal of time with the Galaxy Watch 4, it’s clear that the gamble has paid off. Design and screen

DO NOT measure your body composition if you have an implanted pacemaker or other implanted medical devices. We were sent a Bluetooth-only 46mm Watch 4 Classic for review, but whichever variant you choose, the Galaxy Watch 4 will come with the same Exynos W920 chip inside. Samsung claims this delivers a 20% boost in CPU processing speeds along with graphics rendering that’s a whopping ten times faster than the older Exynos 9110. In years gone by, Samsung has seen fit to release its smartwatches in two forms – the first being a more traditionally themed timepiece and the other being designed around fitness, with the ‘Active’ moniker attached. The only exception to this rule was last year’s Samsung Galaxy Watch 3, and while Samsung has returned to its previous system, there are a few key changes to note. This speed isn’t as noticeable as it might be on a smartphone or a laptop, but it is noticeable when compared to other smartwatches, and it allows you to use a variety of apps while the GPS features are running, for example.As with the standard Galaxy Watch 4 though, you can often find the Watch 4 Classic at reduced prices. Samsung Galaxy Watch 4 design and display Samsung Galaxy Watch 4: Design and display The 40mm version comes with a smaller 247mAh cell, and we’ve yet to be able to test how well this performs. Our experience with previous Samsung smartwatches has seen a slight difference in battery life between the smaller and larger model, but you shouldn’t expect the 40mm variant to be dramatically different. Some of the most popular Wear OS apps have also been updated, such as Google Maps. It’s now a lot easier to see where you’re going as the in-app map design is thankfully less cluttered to give you a better understanding of your surroundings. For the first time ever, you can now use Google Pay on a Galaxy Watch, but Samsung Pay is still available if you prefer. You’d be forgiven for being confused here. Tizen has been the focus of Samsung’s software efforts in recent years, and the software running on the Galaxy Watch 4 looks similar to it.

For those looking for a slimmer design, the Galaxy Watch 4 offers that, with two buttons on the right-hand edge and little else to detract from its sleek looks. It comes in two models, one with a 40mm watch face and another with a 44mm body. Battery time is based on our own laboratory measurements, and may vary depending on factors such as device settings, usage patterns and operating conditions. For example, a stint on the cycling machine drew a peak HR of 166BPM and an average of 127BPM. At the same time, the Galaxy Watch 4 detected an impressively close 166BPM high and a 126BPM average. Further testing continued to prove that this accuracy wasn’t a fluke. Battery LifeHere it is, the big question – after all the hype and expectation, what is the new Wear OS actually like? I am more than happy to report that the revamp is a huge success, but there is a caveat. Typical value tested under Samsung laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. Rated(minimum) capacity is 361mAh for Galaxy Watch4 44mm, 247mAh for Galaxy Watch4 40mm. Actual battery life may vary depending on network environment, usage patterns, and other factors. Each model is also IP68 water- and dust-resistant, which means you can take them into water up to five meters deep. A word about the supplied watch band though – it’s made of a new material that may not handle intense workouts well, as we found it left something of a rash on our wrist. The Samsung Galaxy Watch 4 Classic’s battery life is, without a shadow of a doubt, its worst feature. While the standard model lasts about two days between charges, based on our review time, in our testing we’d estimate that the Classic lasts less than a single day before running out of charge.