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Add to SafariWhen comparing Polar M400 vs Xiaomi Mi Band 2, the Slant community recommends Polar M400 for most people. In the question“What are the best fitness trackers?” Polar M400 is ranked 4th while Xiaomi Mi Band 2 is ranked 16th. The most important reason people chose Polar M400 is:
The "Sport Profile" feature allows you to customize what stats you want to see for each type of exercise. For example, you may want the GPS on for running but not for a circuit workout. These preset profiles save you from having to set up the device each time you exercise.
Specs
Question Ranking
Pros
Pro Gives you a lot of options for customizing different types of workouts
The "Sport Profile" feature allows you to customize what stats you want to see for each type of exercise. For example, you may want the GPS on for running but not for a circuit workout. These preset profiles save you from having to set up the device each time you exercise.
Pro Gives you custom activity goals suitable for your level
The daily activity goal is a good way to find out how active you really are in your everyday life. Here you can choose your typical activity level from three options and see how active you need to be to reach your daily activity goal.
The time you need to complete your daily activity goal depends on the level you have chosen and the intensity of your activities. Age and gender also affect the intensity you need to reach your daily activity goal.
Pro Detailed reports
The fitness tracker offers excellent reporting including distance, speed, cadence, heart rate (if paired with monitor), ascent, decent, calories, recovery status, and more.
Pro Ability to add training notes
The app allows you to add additional notes to your workouts for better tracking.
Pro Good product for the price
It's a great option if you're not looking to invest a lot of money but still want a tracker with a decent set of features.
Pro Same functionality of competitors for half the price or less
You get step tracking, sleep tracking, vibrate notifications, call notifications, clock, alarm, custom actions (via third party apps), heart rate reader (albeit not the most precise one) for the fraction of the cost of the competitors.
Cons
Con Sleep tracking lacks detail and accuracy
If you are awake for an extended period of time in the middle of the night and then fall back asleep, the fitness tracker may not see the additional hours as part of your sleep.
Con Unattractive and bulky design
The tracker is quite wide and hard to miss, it's not something that can blend in with what you're wearing outside of sport/exercise type settings.
Con Short battery life when using the GPS
With the GPS turned on, battery life goes from around 24 days to 9 hours.
This is likely fine for people who will always have opportunities to charge it after their run. However for anyone hoping to use the GPS for longer activities, such as hiking, that may not be long enough to be useful.
Con Very unreliable build quality
There are many reports of the track malfunctioning right out of the box or after only a few hours of use. This includes the LED display not working, the heart rate function not working, and buyers being sent used products.
Con Heart rate monitor is very unreliable
Along with frequently not working at all, it has a tendency to be quite inaccurate. It struggles to read the HR when you're sweating as well so isn't useful during exercise.
