Please up vote this thread if you agree. Hopefully Garmin developers will notice and make the requested change.
The Strength activity interface of the Forerunner 255 is very cumbersome compared to that of the Forerunner 245.
On the Forerunner 245 you can edit weight digit by digit. For example, warm up with the bar, scroll to the tens digit, click up four times, scroll to the ones digit, up (or down) five times. For a total of 10 clicks (4 plus 1 to scroll plus 5). Throw on ten lb plates for the next step all you have to do is increment the tens digit by two.
On the Forerunner 255 you can only edit the hundreds digit individually. The next two digits are coupled together, so to enter 45lbs that's 45 up clicks! And to enter 65lbs that's 20 more up clicks!
Additional clicks are also required on the Forerunner 255 to select edit the reps and weight. As if Garmin wants you to really make sure you want to edit the reps and weight on the 255. On the 245 the data was already there for you to adjust, or confirm, no extra press to select edit.
On the Forerunner 245 you just click straight through. Adjust the number of reps, click straight through to adjust the weight.
It's as if there were two different developers for the strength activity. Like the developer for the 245 actually lifted weights and used the feature, and the developer for the 255 did not.
Garmin's response was, you can press and hold the increment button for it to increment faster. Which isn't great, because then you're hoping it stops at just what you want, and if you overshoot you've still got ten button presses up or down to correct. Whereas with the 245 there was max ten button presses, 0 to 9 for each digit.
Garmin Product Support also suggested that I could submit feedback here:
https://www.garmin.com/en-US/forms/ideas/
Hopefully if enough people submit feedback that the 255 Strength activity interface is so poor they'll change it to be like that of the 245. Meanwhile, I'll use my 245 for Strength training....