Apple Watch Series 4 00017Kif LeswingThe new Apple Watch models go on sale on Friday.

It’s the first major redesign of the product since Apple first released it in 2015. It’s got a bigger screen, new health sensors, and it’s thinner, too.

But specs don’t really matter in day-to-day usage. What matters is how it worked — especially considering these watches start at $400, a steep price for a watch or an iPhone accessory. 

Apple loaned out Apple Watch units to a bunch of bloggers and publications ahead of Friday’s launch, including TechRadar, CNBC, Hodinkee, New York TimesUSA TodaySydney Morning Herald, Women’s Health, Buzzfeed, TechCrunch, and The Verge

In conclusion: It’s a great gadget for fitness fans, but people with older models may not need to upgrade.

Here’s what they had to say: