Smart bands have progressed enormously since their use as daily step counters. Today there is a wide variety that allows us everything from the basics, like keeping track of how much we move, to other bands with more technology that monitor many variables such as the amount and quality of sleep.
What should we look for when choosing a smart band?
Water resistance
Water resistance provides us with durability against water damage. Of course, going for a run when it's raining is different from getting into the pool or the beach. We should therefore check the specifications on this aspect in the instructions for each model.
Comfort and elegance to monitor all hours and all days of the week
The goal of our smart band is to wear it every day of the week, all day long. This way it will give us complete monitoring. That is why the design must appeal to us and must be comfortable to wear at all times.
There are some models, like the , that allow us to change the watch face to adapt it to any situation. This aspect is left to the reader's personal taste.
Sensors it should include

Continuous tracking of heart rate, blood oxygen saturation, and sleep tracking are the three basic features we should ask of our .
From there, we can find other variables to measure with our activity band, such as distance traveled thanks to a built-in GPS, or the control and tracking of the menstrual cycle to know exactly what stage we are in and thus be able to
They can also include some extra tests like a stress test or others. The more it has, the better? If you're going to use them, yes. If you're only going to use it for basic things, you don't need them.
Connectivity and compatibility
Controlling our smartphone from the wrist is one of the most notable qualities of a smart band. The utilities we can find most often are: viewing message notifications, receiving calls, controlling the music we listen to, or using the as a wireless remote to take photos with the phone.
Battery life

Smart band batteries usually last a long time. However, it's preferable to look for this feature so that we have at least about 10 days of battery life on a single charge.
Another interesting feature is that with a few minutes of charging, we can get several hours of autonomy. This is vital for those days when the battery runs out and we can't fully charge it, but with about five or ten minutes, it allows us to use it for a couple of hours for our or our workout.
Large screen and good resolution

The difference between a and a smart band is its screen. On bands, the screen is rectangular and aligns with the strap, giving the feel of a bracelet, hence its name. But within that design, the screen can be of certain dimensions and appear more or less sharp.
An AMOLED panel gives us a sharp view. If possible, one with an anti-fingerprint coating is even better. Here we find a thin line between being large enough and being excessively large for a band. In that case, it would become a smartwatch.
Some recommended smart band options
Honor Band 6

The is what we referred to in the article regarding screen size and the approach to a smartwatch. In this case, its 1.47" HD AMOLED screen gives us vivid images to easily control all its functionalities: 24h heart rate monitor, oxygen saturation monitor, etc.
This bigger sister of the previous Honor Band 5 features 14 days of battery life, and a 10-minute charge allows us to use it for two or three days. We can change the watch faces in the settings to adapt them to any situation. It's available in several colors. Its price is 49.99 euros

HONOR Band 6 Smart Activity Band, Activity Monitor, Heart Rate Monitor Fitness Tracker Screen, SpO2, 1.47" AMOLED Color Screen Smartwatch for Women Men, Black
Xiaomi Mi Band 6

The smart band is the update of the Xiaomi Mi Band 5, and both always make it onto the lists of the best bands. Its elongated 1.56" AMOLED screen is 49% larger than its predecessor's, making it easier to handle and view.
It's useful for sports tracking with 30 workout modes while recording heart rate, calories burned, and many other metrics. During the day, we can also monitor blood oxygen saturation and sleep quality. Another use is connecting it to our smartphone and performing actions from the wrist. Its price is 44.99 euros 40.98 euros.

Xiaomi Smart Band 6, Adults Unisex, Not Applicable, Normal
Huawei Band 6

The hit the market a few months ago and includes all the advances from this brand. It makes the most of its size to incorporate a large screen without interfering with its comfort and design. For 24 hours, it will be monitoring variables such as blood oxygen saturation and heart rate.
The battery has enough autonomy for two weeks on a single charge, or 10 days with intensive use. We can also control other parameters like sleep stages, stress levels, and the menstrual cycle. We can also control several functions of our smartphone from this band. It has a price of 59.00 euros.

Huawei Band 6 - Activity band with 24-hour blood oxygen (SpO2) monitoring, 1.47-inch FullView Screen, Two-week battery, Heart rate analysis
Amazfit Band 5

allows interaction with it via Alexa, thus controlling our smart home devices. It allows us to monitor heart rate and blood oxygen saturation at any time, including during high-intensity workouts.
The battery life is 15 days, so we can go on a trip without carrying the charger, and monitor the steps we take during that getaway, distance traveled, calories burned, etc. It has a price of 44.99 euros 26.80 euros.

Amazfit Band 5 Smart Activity Band, Unisex Adult, Black, One Size
Samsung Galaxy Fit2

features an accelerometer, gyroscope, heart rate monitoring, and workout monitoring. An all-in-one to keep all variables under control when we engage in physical activity.
With a battery life of 15 days, we can use its AMOLED screen to do relaxation exercises, with it being the one to alert us about it. We can also evaluate the amount of time we've slept each day, thus keeping the most important aspects of our health under control. Its price is