Choose a sports bracelet or a sports watch, I think it depends on how much you like this sport.
If you only run occasionally, you'd better choose a sports bracelet, because as you said, the sports bracelet is very light, light to wear on your hand and low in price, but it can achieve 80% or 90% of the functions of a sports watch, and its cost performance is obviously higher. If you want to be a professional runner and have a fixed training frequency, you will also have a training plan of 2-3 times a week, and you want to know some running parameters more comprehensively and in detail.
Compared with the bracelet, the sports watch first has a much larger screen and can display more parameters and information. It is clear at a glance when exercising, unlike the bracelet that needs to slide to see the parameters. At the same time, the positioning is more accurate, and the material and texture are greatly improved. The face value is higher
In fact, I personally recommend starting with the bracelet. One reason is that the price is low and the function is enough. In the case of not sure whether it will run for a long time, the investment is low, but the function is completely sufficient.
If you feel the need to upgrade your equipment after using it, or as you run deeper, it's too late to upgrade.
Now whether it is a bracelet or a watch, it will be updated every year, so don't worry at all. If you buy it late, you may be able to buy a product that is more in line with your needs.