Comparison Apple Watch Series 7 vs Apple Watch Series 3

Table of technical differences

Before going into fully to tell you which are the most outstanding points that must be put face to face between the Apple Watch Series 3 and the Apple Watch Series 7, we want you to be very clear about the points in which we will talk throughout this post. To do this, below you have a table of technical specifications for both devices.

As you have seen, there are certain points where the performance gap between one and the other is greater than in others. Later we will go into each of them in detail, but first we want to tell you which are the most decisive, from our point of view, obviously. You have them below.

• The screen is clearly one of the most differentiating points between both Apple Watch models. Both because of the size and the different technologies they have.
• The sensors available in one model and another are also a great differential point between both devices and something that you have to take into account in order to make the leap from Apple Watch Series 3 to Series 7.
• In the health section, not only the sensors are of great importance, but also the detection of falls , which is present in the Series 7.
• The spheres are the aesthetic point where you will find the greatest difference, since by changing the shape of the box, the way in which you can see each of the spheres also changes, not to mention the catalog that the Series 7 has and the one that has. the Series 3.

Where are there more differences?

Once you know the main differences, it is time to dive into each one of them so that you can know in detail to what extent the Apple Series 7 is superior to the Apple Watch Series 3. We are going to start by talking about what they are. most obvious and the ones that you will notice the most if you finally jump from one device to another.

The screen is radically different

The first point we have to talk about in this comparison is the screen. The evolution of the Apple Watch from the Series 3 has gone in two different ways, that of the sensors, which we will talk about later, and the screen. First, the shape of the case has changed slightly, which has meant that the screen also varies accordingly, leaving aside the aesthetics with more pronounced edges of the Series 3 and opting for a much more used front as we saw in the Series 4 and has become even more evident with the Series 7.

Therefore, and despite the fact that they are similar in dimensions and allow the same straps to be used, the sizes of both are different.

• Apple Watch Series 3
  • 38 mm.
  • 42 mm.
• Apple Watch Series 7.
  • 41 mm
  • 45 mm

But beware, the size and shape of the screen is not the only thing that changes from one model to another, since from Series 5, users can enjoy the Always On screen. That is to say, that the clock screen is always on, sometimes dimming its colors to use less battery, but giving the possibility to all users to be able to consult the information present in its sphere at any time without having to do any movement to see the screen. This functionality is not present on the Apple Watch Series 3.

More sensors and more health monitoring

Before we commented that the evolution of the Apple Watch in these years has gone in two different ways, the screen and the sensors, well, now we have to focus on the seconds. And, if something characterizes the Apple Watch, it is how focused it is on caring for and preserving people’s health . In fact, there are already numerous cases in which the Apple Watch has managed to help many people detect heart conditions or notify emergency services.

Summarizing a lot the comparison in this case, we can say that the Apple Watch Series 3 is capable of measuring your pulse at all times, but that in addition to that, the Series 7 also manages to control your blood saturation. How we say, this is summarizing it too much, since there are other very interesting functions that you have to know and that are provided by the different sensors that both devices have. Therefore, below we leave you a list with what each of them have.

• Apple Watch Series 3
  • Optical heart rate sensor
• Apple Watch Series 7
  • Electrocardiogram sensor
  • Blood oxygen sensor
  • Electrical heart rate sensor
  • 3rd generation optical heart rate sensor

As you have seen, the Apple Watch Series 7 not only has more sensors, but the one shared by both is much more developed in the Series 7. These differences obviously lie in what both devices are capable of offering. Both are capable of controlling your heart rate and sending you notifications if you suffer any alteration, but to this, in the Series 7, you must add the possibility of making electrocardiograms of a lead and measuring oxygen in the blood , two functions that are really health-related. tools.

Fall detection

And if we talk about functions that have been able to help save the lives of some users, we also have to talk about fall detection. This function consists in that, if the user of the watch suffers a fall, this will be detected by the device and will be able to call both his most important contacts, previously dialed, and the emergency services so that they can come to help him.

When you fall, it is the watch itself that detects the fall and sends you a notification asking if you are okay and in case you cannot answer, it is the Apple Watch itself that will be in charge of calling , as we have said, both the services as well as your emergency contacts. In case you are well and you do not need help, you just have to click on “I’m fine” and continue with the activity you were doing.

Again, thanks to this fantastic feature that the Apple Watch Series 7 has, many people have already saved their lives. For this reason, you have to take this functionality into account, since it is not present in the Series 3.

Is the fast charging really noticeable?

We put aside the health functions and turn now to the battery of both devices. As for autonomy, it will be a point that we will talk about later, since the big difference in this aspect lies in the loading speed. Undoubtedly, Apple has a pending issue when it comes to giving the Apple Watch more hours of autonomy, therefore, and until they are able to carry it out, what they have decided to do is give the opportunity to users of the Apple Watch Series 7 charging your device infinitely faster than before. Here are the charging times for both devices.

• 0 to 80%
  • Apple Watch Series 3: 1 hour and a half
  • Apple Watch Series 7: 45 minutes
• 0 to 100%
  • Apple Watch Series 3: 2 hours
  • Apple Watch Series 7: 75 minutes

The difference between both devices in this sense is abysmal, and it is something that you have to take into account depending on the type of user you are, since it is especially important for all those who use the Apple Watch to monitor their sleep at night, and therefore, they need the watch to charge as quickly as possible to have it both at night and for the rest of the day. However, for all those who charge their Apple Watch during the night, this advantage of the Series 7 will not be used as much either since the charging times of both are enough to wake up the next day with your watch at 100% autonomy.

The spheres look different

When talking about the screen we have told you that both the shape and the size of it have changed a lot from one model to another, and this, as it cannot be otherwise, has considerably affected the aesthetics of the spheres. In the Apple Watch Series 7, in addition to having a much larger catalog , these look much larger. And this not only affects the aesthetic section, but also the functional section, since in this way the information that you can consult on the different complications will be much greater in the Series 7 than in the Series 3.

The Apple Watch is much more than a technological device with which you can manage notifications, call, control your health or monitor your physical activity and hours of sleep, it is also a watch, and therefore, it is one more fashion element . In this section the spheres that you can use are key to being able to adapt it to the different situations and moments of your day to day. Apple has not renewed the variety to which Series 3 users have access for a long time. However, in the Series 7 the catalog is enormous and, of course, will continue to increase over the years.

Less noticeable differences

So far we have entered those points where we believe that you can notice a great difference when going from an Apple Watch Series 3 to a Series 7. However, they are not the only ones, so below we want to enter into the differences that, although they exist , are less than those mentioned above.

Same autonomy?

We have already told you about the battery, but not about the autonomy that both devices have, but about the charging speed. Well, the novelty in the charging speed of the Series 7 is due to the fact that at the level of autonomy they have not been able to make a differential leap during all these years, surely limited by the size of the device itself and, at the same time, by all the functions that it is capable of carrying out.

In fact, both devices, with small nuances, have the same autonomy, up to 18 hours , which can vary depending on the use that each user makes of it. It is an autonomy that without any problem will allow you to spend all day using the Apple Watch without having to worry about the battery, however, it is not capable of reaching the two or three full days that many users demand.

This is how both Apple Watch perform

One section in which the Cupertino company always works very well is in the performance of its devices, and these two Apple Watch models are proof of this. Obviously, the Series 7 has a chip, the S7 , which is more powerful and offers greater performance than the S3 that the Series 3 has. This will result in a small improvement in terms of system fluency and speed when carrying carry out certain actions.

Now, it will not be a point where the difference is radically different from others that we have talked about in this post. If there is, it will be very small, since both devices perform really well and are capable of providing a very satisfactory user experience in all the facets in which they excel.

Box finishes

We finish this comparison with a totally aesthetic point, but that of course must be highlighted, since the Apple Watch Series 7 is the first model that changes the classic Apple finishes. Traditionally, the Apple Watch has always been available in silver and space gray, although with the passage of time different finishes such as blue or red have been added.

However, with the arrival of the Series 7, the Cupertino company has said goodbye to silver and space gray, replacing them with star white and midnight respectively, and adding another finish to red and blue, such as green. In this way, the finishes of the box of both Apple Watch are as follows.

• Apple Watch Series 3
  • Aluminum
    • Silver.
    • Space Gray.
• Apple Watch Series 7
  • Aluminum
    • Star white.
    • Midnight.
    • Green.
    • Blue.
    • Red (PRODUCT RED).
  • Stainless steel
    • Silver.
    • Graphite.
    • Gold.
  • Titanium
    • Natural titanium.
    • Space black.

Big difference in price

As you have seen in this comparison, the difference in performance between the two devices is quite large, the result of the years of difference between the two. These differences are reflected in the price at which Apple sells them, and as you might be imagining, the Apple Watch Series 3 is much cheaper than the Apple Watch Series 7. Below are the prices of both watches.

• Apple Watch Series 3
  • 38 mm: 219 euros.
  • 42 mm: 249 euros.
• Apple Watch Series 7
  • 41 mm: 429 euros.
  • 45 mm: 459 euros.

The distance in terms of price is really great, in the same way that there is a big difference in what both Apple Watch are capable of. However, below we are going to tell you what our conclusions are and, above all, in which cases it is worth changing one device for another, or in which cases it is worth buying one or the other.

Last conclusions

The time has come to tell you what our conclusion is and, if from our point of view , it is really worth changing from 3 to 7 or which of the two is better if you do not have any depending on the use that you are going to make of the device. As we have told you, there are numerous differences that you will find between both Apple watches, therefore, we believe that in the vast majority of cases the jump from one device to another is very worth it.

There are many points in which you will notice a considerable improvement, starting with the health functions that you will be able to use, as well as the feeling of having a different device thanks to the redesign that the Apple Watch has undergone over the years. years. Not to mention fast charging , which is one of the points that, apparently, does not attract much attention, but when you try it and you will enjoy it on a day-to-day basis, you notice it quite a bit. Therefore, unless you are a user who simply uses the clock to check the time, the jump from one generation to another is well worth it and, if you do, you will enjoy it a lot. In the same way, if you are hesitating between buying one and the other, the amount of possibilities that the Apple Watch Series 7 offers you will not be found in the Series 3, especially in terms of sensors.

However, there are many users who are not going to demand as much from a device as a smart watch, and simply want to try the experience of having an Apple Watch on their wrist. In that case, the Apple Watch Series 3, having such a low price, can be a first entry watch that makes many users fall in love with a device that, at first, seems not very functional, but that once you enjoy it in the day by day it becomes practically indispensable. We always say that the best device for a user does not always have to be the newest or the one with the greatest benefits, but rather the one that best suits the needs of each one, and in that case, the Apple Watch Series 3 can be a Fantastic watch for many users who do not want or need all the technology that the Apple Watch Series 7 offers.