Pros:
—I absolutely loved the black face with frost blue strap. The strap was also a little more comfortable than that of the Forerunner 220 (though it has never irritated my wrist before). I think it might be due to the extra holes in the strap that allow for a more flexible fit.
—I generally love all the data, stats, and notifications from my Garmin Vivosmart HR, so having a watch (meaning I only needed to wear only one device) with a bigger face to track all of this was even better!
—It was so much easier reading notifications (i.e. text messages or other alerts you set up on the phone) on the watch due to the larger face.
—There are more running features to this watch than that of the Forerunner 220. Not only can it track heart rate, it has a VO2 max estimator, recovery advisor, and race predictor all of which are not on the Forerunner 220. There is also the accelerometer, cadence tracker, and storage of personal records similar to that of the Forerunner 220.
—The watch similar to that of the Forerunner 220 and Vivosmart HR can wirelessly sync with Garmin Connect. This allows for easy access to all the data from the app right on your phone.
—Heart rate monitor did not work as well as the Vivosmart HR one. The main reason I didn’t like the new Forerunner 235 is because the active heart rate was off. When I was running a very easy, slow-paced 3-mile run, it said my escalated to 191 bpm and average was around 170. This I knew was wrong based on feel and the Vivosmart HR. Typically my heart rate has been around 130-140 for easy runs based on the Vivosmart HR. At one point, I decided to wear both on different arms though and the resting heart rate was almost exact but the active heart rate was very different on the Forerunner 235. I tried the watch out on multiple runs during the week I had it and every time it showed my heart rate went above 190 bpm for very easy runs. When the heart rate is wrong, it also affects the recovery advisor which then said I needed to rest for 5 days after a 3 mile easy run?!
—I would prefer to wear an all-in-one device meaning watch and activity tracker, it doesn’t have to be a GPS watch but if it were it would be an added benefit. That is the reason I really liked the Forerunner 235 when I read about its launch. However, this watch was just too bulky and the color scheme was not neutral enough (I know the black/gray one would be better but I would still prefer something more plain watch-like) for me to wear around all day and to work.