Things I like: -- Watch is very light. I don't notice it on my arm. I would have gotten the Fenix 5 but it is way too heavy. -- The screen is always on and you can see data easily in bright sunlight. -- The Garmin Android app is far superior to Samsung's S Health. -- Advanced fitness analysis and information. -- Resting heart rate. -- vo2 max -- Recovery time -- activity caloriesThings I don't like: -- While you are The screen scratched easily. Mine (45 days old) already has a small scratch where the charger rubs against the screen. Maybe Garmin should redesign the charger attachment mechanism and maybe Garmin should add a factory installed screen protector. I have added one myself.-- When running the exercise widget you cannot get back to the clock screen or view other widgets. Garmin should be consistent and set the button they are using for the lap button to do this like it does everywhere. Long pressing the button can be used for the lap function.-- The ability to see messages on the watch does not work as well as it should. If you are not in range of your phone you cannot see messages that have been previously sent to the watch. Many times the messages will not be sent to the watch (even in a delayed fashion if out of range). The watch does not always show incoming messages. -- The Bluetooth range is low. For example I must keep my phone in my left bike pocket or it will keep disconnecting from my watch (back pocket gives trouble). If my phone is in another room the watch will keep disconnecting and reconnecting. This is very annoying because the watch keep buzzing. connect... disconnect...connect... disconnect... did I say very annoying. Maybe it should just wait a minute before it tells me it is disconnected.-- Can't snooze the alarm for any amount other that 10 minutes.-- Expensive. But after a few weeks I will forget about this. -- The box that the Garmin came in was not sealed. This is not ideal because you can never tell if someone else has previously used the watch. -- The setup with the phone failed the first time I tried but the second time it completed successfully. -- It was very difficult to add my credit card to Garmin pay. My card is for a supported bank (Chase) but kept failing. The app ran "setting up card" for a long time then fails. I tried two different cards. Both failed. Eventually after many tries the card added successfully.-- You cannot add music to the watch from the Android app. -- You cannot see realtime exercise data (ex run pace) on the Garmin Connect app. It would be nice to always have to look at watch when using the treadmill. -- You cannot add and remove widgets using the Garmin connect Android app. You can do it on the watch or the web site. -- The watch is not a touch screen. This makes it more difficult to scroll to things and I worry the buttons will wear out. I gave gotten used to this and it does have its advantages like being able to reset timer without looking at watch. -- The strap is a little difficult to get off but better difficult than falling off.Some Notes: -- Garmin weighs 40 grams. -- Fit 2 Pro weights 34 grams. -- I was able to pair Samsung Level U headset. Seems to work ok. -- I was able to copy mp3 music files to watch using "Windows" computer. -- Music play back works without issue. -- Heart rate while walking is off by as much as 7 bps compared to chest strap. -- Heart rate while using a exercise widget (run, treadmill, bike etc) is very accurate. -- Im using about 30% of battery per day.Usefull apps\widgets: -- Find My phone. -- Timer