Sleep Tracker For Small Wrist. My TOP 5 Picks

Sleep Tracker For Small Wrist

All modern sleep trackers and smartwatches can track the sleep of their owner.

Some devices monitor sleep phases, while others display only general information about the degree of mobility. And some support a smart alarm and can even evaluate the quality of breathing during sleep.

But what to do with small wrist trackers? How to choose a sleep tracker for a small wrist?

Let’s understand it together…

No time?

Here is a brief overview of the best sleep trackers for a small wrist that will be discussed next.



The latest Fitbit devices are the best sleep monitoring gadgets for small wrist. The key to their accuracy is the Sleep Stages technology and the detailed Fitbit app.
Xiaomi Mi Band 4 Xiaomi Mi Band 4 is the best cheap tracker for a small wrist.

Samsung Galaxy Fit

Samsung Galaxy Fit is an inexpensive and convenient tracker with accurate sleep phase detection and detailed analysis in the Samsung Health app.
Oura Ring 2 Oura Ring 2 is an alternative wearable device in the form of a ring that provides accurate analysis of the collected data. You can get it on the official website Here

Jawbone Up

It is a device that has gained a reputation as the best sleep researchers.


Sleep Tracker For Small Wrist. How to choose them?


To choose the right sleep tracker size, measure the circumference of your wrist with a measuring tape.

If it shows between 15 and 18 cm, choose a sleep track with a case of medium diameter (from 38 to 42 mm).

If the wrist circumference is more than 19 cm, a large wrist sleep tracker with a size of 44-46 mm will suit you.

The main rule: if the case diameter is chosen correctly, then its “ears” (the place where the straps are attached) do not go beyond the width of the wrist.

The size and appearance of the sleep trackers is influenced by 2 factors:

  • The characteristics of the case and strap,
  • The presence of additional design elements. 

These features will be discussed in more detail below.

Sleep Tracker For Small Wrist
Sleep Tracker For Small Wrist

1.Diameter of a display( If a sleep tracker has a display)

There is a simple formula that will help you understand how to choose a sleep tracker with a screen by size. Multiply the width of your wrist (which can be measured with a measuring tape or a ruler) by 0.618.

For example, if the width of the wrist is 60 mm, then the appropriate size is: 60*0.618 = 37 mm.

You can check if the sleep tracker is suitable in another way. Compare the width of your wrist with the “lug to lug” indicator. This parameter shows the vertical distance between two lugs (from 12 to 6 o’clock). It must be at least 3-5 mm less than the width of the hand.


The height of the sleep tracker is directly proportional to its diameter.

This parameter shows the distance from the top surface of the screen to the bottom surface of the back cover.

How to choose a sleep tracker by its size? for a small wrist?

  1. Chassis height
  2. Distance between fasteners.

Most often, with a diameter of 38-42 mm, a height of 6-7 mm occurs. Massive cases have a thickness of approximately 9 mm. If the screen is convex, the height is measured from the highest point.

The appropriate sleep tracker size depends on the type of hand. On a rounded wrist, thin models look better.

For a wide flat wrist, it is better to choose massive and high specimens.

3. Length of Strap/bracelet of a sleep tracker

To choose the right sleep tracker, it is important to clearly determine the desired length of the strap.

It is indicated by two numbers through a fraction, for example, 130/80.

The first number indicates the size of the long half of the strap, the second number – the short one. Which sleep tracker size to choose depending on the girth of the hand, it is better to show in the form of a table.

Wrist circumference (mm) Strap length (mm)
up to 165 120/70
165-180 125/75
180-190 130/80
190-205 135/80
205-215 140/85
from 215 145/90

The circumference of the wrist should be measured with a measuring tape in the place where you are going to wear the sleep tracker.

This is usually the narrowest part of the wrist between the protruding bone and the hand. There should be a gap of half a finger between the measuring tape and the hand, then the sleep tracker will be comfortable to wear on the hand. Handmade belts are usually thick, with a thickness of about 4mm.

They should be 1 size larger to fit comfortably on the wrist.

When buying a sleep tracker, don’t forget when you will wear it. Sometimes sleeves of pajamas can make sleep measurements inconvenient.

4. The width

The width, like the length, is indicated as two numbers, for example, 24 * 22 mm. The first number is the size of the strap near the case, the second is near the clasp attachment.

Sometimes, instead of this indicator, the manufacturer may indicate the width of the ears – “lug width”. This is the horizontal distance between strap anchors. By this indicator, you can also navigate when choosing the width of the bracelet.

It is important to pay attention to the material of the belt. There are a few simple rules here on how to choose the right sleep tracker based on the size of your wrist:

A strap made of leather or fabric is considered universal, it fits well both on a thin hand and on a wide one.

Sleep Trackers with a bracelet with large links look massive and are suitable for a full hand, with a narrow wrist they will only emphasize thinness.

Woven metal bracelets and models with thin links look good on both rounded and thin hands.

If you have thin wrists but want a metal bracelet, choose accessories that have a bracelet size 2.5-3 times smaller than the case.

The material of the strap affects the visual massiveness of the strap. That is why a bracelet of the same width as a leather strap will look rougher, and vice versa.

Rubber and silicone models look neutral and correspond to leather ones in terms of massiveness. They may be the best version for sleeping.

Sleep Tracker For Small Wrist
Sleep Tracker For Small Wrist

 Best Sleep Trackers For Small Wrist


1.Samsung Galaxy Fit

Samsung has produced many smartwatches and fitness bands as well as sleep trackers.

The best of them can be called the Samsung Galaxy Fit which is an ideal variant for small wrists . This is a thin and powerful gadget with voluminous functionality and autonomy up to seven days. Like most Samsung products, the Galaxy Fit comes with a colorful AMOLED display and its night mode won’t disturb your eyes if you wake up in the middle of the night.

When it comes to sleep tracking features, the Samsung Health app compatible with the bracelet is rich in information.

There is a separate section dedicated to sleep data, which stores information about how much time you spent at each stage, the total time you were awake during the day, the total sleep time, the number of calories burned during the night, the change in sleep indicators over time, averaged and target values.

Together, all this data will give a clear picture of what your sleep pattern looks like at this time and how it differs from healthy indicators.

Buying Galaxy Fit’s optical heart rate sensor isn’t always accurate. There may be gaps in the statistics at times. However, this problem is typical for many wearable sleeping devices.

Overall, the Galaxy Fit does a decent job and gives you more coverage than an entry-level fitness tracker.

2.Xiaomi MiBand 4 

It is a great purchase for small wrists. Wearable products from Xiaomi are in demand due to their affordable price and good performance. Mi Band 4 is one of the best sleep trackers in the average price range.

It is thin and light enough not to cause discomfort while sleeping.

The new Mi Band offers 24/7 heart rate monitoring and gives you a sleep score based on how much time you spend in deep, light, and REM sleep. It also provides an analysis of sleep quality and reminds you of the importance of regular rest. But compared to expensive alternatives, its information content is a bit limited.

The Mi Fit app itself isn’t perfect.

The main inconvenience is that the developers spread the user story across multiple menu items instead of putting it in one tab. However, the Mi Band can also send data to other similar apps such as Google Fit and Sleep As Android. Try each one and choose the one you feel most comfortable with.

Mi Band 4 has another advantage over other trackers – it can work up to 20 days on a single charge. It also knows how to determine the main types of physical activity, keep count of steps and calculate the number of calories burned. 

3.Oura Ring 2

 If wearing even the lightest and thinnest bracelet causes you discomfort, a sleep tracker in the form of a ring will be the best choice.

Oura Ring 2 is a small device, unlike its first version, it is equipped with a large number of sensors, and on the outside it is no different from a regular decoration.

Wellue O2Ring Oxgyen Monitor Smart Ring Sleep Apnea Monitor

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Inside it are an infrared heart rate monitor, a gyroscope, an accelerometer and three temperature sensors at once. Based on changes in skin color, Oura Ring 2 calculates when you fall asleep and collects standard data, such as how much time you spend in each stage of sleep.

It is called one of the most accurate sleep trackers, but it is also prone to failures, especially in the case of daytime sleep. This shortcoming is compensated by a detailed analysis of information in the companion application: it displays the duration of sleep, its quality, heart rate during the night, the number of awakenings and much more.

If you also activate temperature sensors, you will receive data for this indicator during the night. It will help you understand in what conditions your body recovers best – at low or high temperatures. Accordingly, you can organize the most comfortable environment in the bedroom.


Fitbit creates products packed with tons of useful features. I can’t pick out just one, because they are all good in their own way, both as sleep trackers and as physical activity monitors.

Much of the credit goes to the Sleep Stages feature. It lets you see how much time you spent in each stage of sleep: light sleep, deep sleep, and rapid eye movement. By itself, this information makes little sense, but another technology will come to the rescue – Sleep Insights.

It will help with tips on how to improve the quality of sleep and explain how each indicator affects well-being. In addition, in Fitbit application you will get access to statistics that will allow you to compare your performance with the data of other users from your age group.

Now let’s talk about specific devices.

The Fitbit Inspire HR is a slim, stylish and very smart bracelet designed for small wrists. It will be a good choice due to its decent battery life (up to five days) and 24/7 heart rate monitoring. Heart rate data is stored at one-second intervals and is accurate both during exercise and at rest.

5.Jawbone Up

Now here is a real bestseller – Jawbone Up.

It is Jabon devices that have gained a reputation as the best sleep researchers.

The cost of Jawbone UP is pretty much affordable. But the user rating of this gadget is much lower: 3.0 on Amazon.

True, all the comments of users do not relate to sleep monitoring. They scold frequent breakdowns, a bad battery and weak water protection.

As for the sleep tracker and the smart alarm clock, on the contrary, it is praised. The only complaint on this topic was that the gadget does not always catch the moment the owner goes to sleep. But in this case, the approximate time of falling asleep can be noted manually in the morning.

Final Thoughts 

Properly selected sleep trackers cannot be scrolled. However, they should not leave red marks on the skin. If sleep trackers do not sit so tightly, they can be slightly scrolled around the wrist at night and won’t be able to give proper results.

It is impossible for the bracelet to be along the arm, otherwise, to determine the time, you will have to look for a watch under the sleeve for a long time.


Does fitbit work on small wrists?

Yes, all new coming models of Fitbit are great for small and wide wrists. Their products are also easily adjustable.

Does Fitbit Charge 4 fit small wrists?

Yes. Fitbit Charge 4 will suit both men and women with small wrists because it is quite raised and chunky on your wrist.

Which Fitbit is the smallest?

The Fitbit Inspire 2 is the smallest fitness tracking feature.

What is the thinnest fitness tracker?

The Fitbit Luxe is the thinnest fitness tracker. It’s small and thinnest but it is packed with a lot of advanced fitness and health sensors. 

What is the best Fitbit for a small wrist?

Fitbit Inspire HR Heart Rate and Fitness Tracker is the best choice for small wrists. Read our article to get more information.