Honor band 5 A90 is a smart band which can be connected through Bluetooth to your phone.in your phone youll have to download app huawei health through which you can track this device.the possible settings required to track this is Bluetooth and location.before using this device youll have to fill the profile section of huawei health app which includes gender , age, height and weight.based on this the device will give you accurate information of step counts, calories burned and meters walked.it can track your heart rate, spo2 levels, can track your workout intensity depending on your heart rate.you can set number of steps you want to walk, per day WHO recommends 6000steps for healthy individual.accordingly you can set your goal.being a smart band sometimes it suggests you to walk by vibrate tone and figures appearing on screen.it can even track your sleep patterns like amount of light sleep, deep sleep and rem sleep.one thing you need to keep in mind that there is firmware update section in devices which needs to be updated when the rod dot appears on that, this will keep on adding new features to your band, regular updating of your band is important.Total time taken for this band to get charged is 60-90 mins, and it can last for 4-5 days. Charging of your phone should be more than 20% when you are updating your firmware.this is great product its quite affordable and will give you a healthy lifestyle.