When comparing Polar M400 vs Sensoria Fitness Socks, the Slant community recommends Polar M400 for most people. In the question“What are the best fitness trackers that pair with iPhones?” Polar M400 is ranked 2nd while Sensoria Fitness Socks is ranked 10th. 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
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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 Provides feedback on running technique through voice messages
Sensoria fitness tracker gathers information on how a runner puts pressure on their foot and analyzes it in real-time. If the sock notices something that could potentially cause injuries, it warns the runner with a voice message and suggests a way to improve his technique.
Pro Motivational audio cues
A virtual coach can be set up to congratulate when personal records get beaten, cheer when doing well, and warn when not doing as well as hoped. The frequency of audio cues can be adjusted.
Pro Allows adjusting settings to preferred running style
There are multiple valid ways of running. To accommodate runners of different styles, Sensoria fitness tracker allows setting up desired landing positions and cadence as well as turn on a metronome to help out with execution.
Pro Easy access to data
Sensoria provides companion apps for iOS, Android and Windows phones, as well as a web dashboard.
Pro Socks can be washed
Though the fitness tracker is not fully waterproof, the pressure sensitive electronic textile used in the socks can safely be washed and machine dried.
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 Unreliable altimeter
The socks sometimes have trouble detecting changes in elevation.
Con Only one sock is active at a time
The socks feed data to a single anklet, and information for both feet can't be gathered at the same time yet. This functionality is planned.
Con Doesn't catch some bad running techniques
Currently the fitness tracker covers a relatively small subset of bad running techniques. It's possible to be in a situation where the technique is bad and the device is not aware of it.
Con Very few customization options currently available
Some of the fitness tracker's customization options are planned, but not yet available.