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If you would prefer not using the Mi Fit app, you currently do not have a lot of options. The primary recommendation of Gadegtbridge , the open-source app that lets you connect to various trackers without needing to transmit any data to the vendor, has not yet been updated with Mi Band 4 support. The Mi Band 4 focuses on fitness and activity tracking as one of its highlight selling points, and for the most part, the Mi Band 4 does not disappoint, especially when you keep in mind its price.

The Mi Band 4 comes equipped with a 3-axis accelerometer and a 3-axis gyroscope, allowing users to count their steps, track distance walked and calories burned. This count came through the hand movements I probably made during my sleep. The inaccuracy is within bearable limits though, and the Mi Band 4 should provide you with reliable data on your steps for the most part.

You can also view your step count history to get a better idea of how your performance has changed over time. The Mi Fit app attempts to categorize activities automatically, which is great if you are a casual user who wants to spend more time doing the activity rather than pouring through data. These data categorizations can sometimes be off, so if you prefer your data to be accurate, I would suggest periodically monitoring the same. Inaccuracies with categorization are an inherent limitation to smart trackers, so I do not judge the Mi Band 4 too harshly on this aspect.

Much like how the step tracking is handled automatically, sleep tracking is also handled automatically. The thicker Mi Band 4 may not be as comfortable as the thinner Mi Band 3, so you would need some getting used to the increased bulge on your wrist while sleeping, especially if you come from the earlier Mi Band. The performance in this section is admirable, as the Mi Band 4 has been accurately able to detect when I fall asleep and when I get up, with variances lower than 2 minutes.

I find this impressive because I usually spend a lot of time in bed peeking at my phone before falling asleep and after getting up, often using my phone with the kickstand to watch movies or catch up on YouTube.

So wrist movement during these periods slows down without me falling asleep — and the Mi Band 4 handled it all like a champ. Heart rate measurements on the Mi Band 4 have been a stark improvement. I have had very poor experiences with heart rate measurements on previous Bands from Xiaomi, as they failed to pick up any readings whatsoever because of my darker skin tone. This is an issue with how light-based heart rate sensors work, as they often are unable to pick up blood flow readings through darker skin.

I have experimented with having friends with lighter skin tones use the same bands Mi Band 2 and Mi Band 3 in this context , and the bands promptly returned readings.

On my wrists, the same bands failed to pick up data even after multiple attempts right after they had reported success. With this Band though, the experience has been entirely different. For the first time in my Band experience, I could manage to get complete readings without having the Band derp along the way. I do not have any means to verify whether these readings are accurate, but the fact that I managed to get some is a success in my books. While the band does not have a dedicated GPS within itself, the Band 4 can leverage the GPS of your phone to track the routes you take for activities like Running and Cycling.

You also get some more detailed information here, such as average heart rate, stride, cadence, and others, depending on the activity. Keeping up the positive note in this review, we come to the battery life on the Mi Band 4. Just like most things that Xiaomi sticks its name on, the Mi Band 4 provides excellent battery life that will never leave you wanting for more.

On lighter usage scenarios, with the Band 4 spending a lot more time on my desk rather than my wrist, but still vibrating for every call and notification, I managed to get the battery to just about half in two weeks, meaning that the Band 4 could have potentially lasted me for the entire month if I was not too keen on exercising.

The freedom to just pick up a device and not have to worry about its battery level is liberating, and whatever magic Xiaomi does with batteries and battery life clearly works even on its smart bands. You would be glad that the battery lasts this long because charging the Mi Band 4 is one of the few pain points of this otherwise-excellent fitness tracker. As highlighted before in the Design section, the charging cradle is not well designed, and I foresee instances of frustration on this end.

The Xiaomi Mi Band 4 is part of that product lineup from Xiaomi that keeps improving and keeps surprising, year after year.

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Just when you thought the company has delivered the best value product, out comes another that raises the bar even higher. The Mi Band 4 is an absolute joy to use as a fitness tracker and a smart band, ticking off all the right boxes. Outside of charging, I had no major complaints with this fitness tracker, and I can confidently give it a spot on my wrist every single day. But what truly makes the Mi Band 4 a great fitness tracker is the fact that it manages to do everything without breaking your bank.

What truly makes the Mi Band 4 a great fitness tracker is the fact that it manages to do everything without breaking the bank. At that price, the Mi Band 4 takes fitness tracking from established fitness aficionados who meticulously plan their exercises, to hobbyists and amateurs who are looking for the motivation to get started onto a healthier lifestyle.

Had the tracker been more expensive, you would need a stronger motivation, a stronger resolve and a more urgent need to convince yourself that you do need a fitness tracker in your life. Want more posts like this delivered to your inbox? Enter your email to be subscribed to our newsletter. Commerce and Law graduate with a passion for all things Android, Aamir frequently helps people get the best out of their budget smartphones through generous use of custom roms and kernels.

Order the Samsung Galaxy S20 at Amazon. XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.

Xiaomi Mi Band 4 review: Still the best cheap fitness tracker you can buy

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Xiaomi Mi Band 4 Review: Fitness tracking done right and done cheap, again One of the biggest draws from Xiaomi as a brand is the fact that one can expect a really strong value deal from practically everything that the company decides to put its name to — ranging from smartphones to accessories to just about everything in the Xiaomi ecosystem. So, does the Mi Band 4 live up to the hype? Read on as we find out. Download QR-Code. Its power consumption is less than one-fifth than that of similar accelerometers.

This incredibly low energy consumption means Mi Band can go up to 30 days between charges. At 8mm, Mi Band's 41 mAh battery is extremely thin and powerful. One full charge can last you 30 days - that's 4 times longer than other fitness bands.

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