What do you know of where they started, their past injuries (if any), their body size, how long they've trained, and half a hundred other things that could explain a tiny bench press number?
Yeah you might be progressing greatly and maybe the dumbbell bench press is just as good if not better than BB bench unless you're lifting so much that ROM is limited by the sheer size of the dumbbells but you must follow my powerlifter program or you're not a real lifter!
If you absolutely want one and nothing is going to stop you, Garmin makes a good scale that does bf%, water, and muscle mass.
Oh yeah I know I'm giving up some accuracy for convenience. I just train at an old school bodybuilding style gym that doesn't have anything fancy like that, and I don't feel like going to the doctor or whatever quarterly for a dexa scan.
if you can deadlift 140kg for 7 reps, then you can for sure dl 150kg for 5 reps, so go for that, you'll get more gains faster that way
Ignore scale, buy measuring tape.
Lot of shit goes into it. Scale can be imprecise, water weight vs. height, time of day, bowel movements, etc. Your weight is just one trackable thing that you should take into context with everything else, like: How are your clothes fitting? Do you feel bloated or sluggish compared to yesterday/2/3/4 days ago? How fast is the bar moving vs. last time you trained the same lift? My own scale is telling me I've put on some weight since the new year, but people are telling me I look like I've put on muscle and dropped fat, plus my lifts are going up. So while I'd like the number on the scale to go down as my lifts go up, I'm not concerned.
>be me