Polar M400 vs Sony SmartBand 2 Other comparison
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Functions & Connectivity
Battery & Features
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Comparison of Polar M400 vs Sony SmartBand 2The Polar M400 is in the medium-price range whereas the Sony SmartBand 2 is in the low-price range and the Polar M400 was released in 2014; the Sony SmartBand 2 arrived in the market in 2015.
Both trackers measure the calories you burn every day.The Polar M400 is made for cycling but the Polar M400 is not, and both watches measure the distance you run or walk, and both trackers can measure your heart rate.
In addition, both watches track the quality of your sleep, and both trackers count the steps. The Polar M400 has an integrated clock but the Polar M400 has none, the two fitness trackers can be connected via bluetooth, The Polar M400 has an integrated GPS but the Polar M400 has none, and finally the Polar M400 has a battery life of 1 day and the Polar M400 has 1 day .