It might or might not:

• arrive
• work
• be genuine
• be fit for purpose

Pros: cheap

Con: you support temu, and slave labour.

Pros: price

Cons: the watch doesn’t work and now you have lead poisoning

Just buy a cheap Casio if that’s your budget. It’ll keep better time and is less likely to end up in a landfill

Cheap but probably won’t work I’m guessing?

If you really want a cheap smart watch there’s a bunch of reliable ones worth looking into rather than getting something random on temu. I haven’t tried the Pine Time but it looks good if you like fiddling with the tech.

If you can put up with Xiaomi they make a ton of different options. I used a Mi Band for a few years and it kinda did what I wanted it to do better than my current Wear OS watch does