AP Technology Writer

NEW YORK (AP) —Apple is a habitual party crasher, but can the company’s history of arriving late and making a big splash in various gadget categories continue with the Apple Watch?

The technology company was a late entrant into many of its most prominent product categories: the iPod wasn’t the first digital music player and the iPad wasn’t the first tablet. But in most cases, the innovation the company infused into its devices ignited previously dormant markets — and Apple products became “must haves.”

Smartwatches have been around for a few years, but makers such as Samsung and Sony have failed to make them a runaway hit.

Apple’s stated entry into the smartwatch arena this week with a gadget that won’t go on sale until early 2015 raises questions: Can the company work its magic as it has in the past and convince people that they really need a smartwatch — or will this time be different?

Experts say Apple is likely to stimulate interest in smartwatches, but they contend that the company must overcome a few hitches before its device can succeed.

Wearable devices is a small but growing area that technology companies are hoping to capitalize on as the smartphone and tablet usage grows. Citi Investment Research estimates the market for smartwatches will be $1.4 billion to $1.8 billion this year and could grow to $10 billion by 2018.

But no company has cracked the formula for a mass-market success. The entire “wearables”category includes sport fitness bands, watches and other apparel —everything from Fitbit’s $99 Flex fitness tracker and Nike’s $99 Fuelband fitness monitors to Samsung’s $199 Galaxy Gear smart watch. Experts say the Apple Watch’s real test will come when developers begin to develop apps for the gadget, which is Apple’s first brand-new product introduction in four years.

“What separates Apple from the others is partially the design itself —it’s a lot more elegant than other offerings— as well as the Apple ecosystem and (software) developer opportunity,”said Susquehanna Research analyst Chris Caso.

Forrester analyst James McQuivey said some Apple Watch features, like the controller knob on the side and the emphasis on different watch sizes and style options for watch bands and clasps, could help the watch stand out.

“Apple has unique strengths to make something elegant and attractive,”McQuivey said. He compared the Apple Watch to Apple’s earlier innovations like the iPod and its trademark white earbuds.

“They made it something you wanted to be seen carrying,”he said. “You have (an iPod) just to make people see that you have it. Even people who didn’t buy it knew what it was.”

McQuivey predicts a successful launch but not quite as big a launch as Apple’s iPad. He believes the company will ship 10 million units by the end of 2016.

“You only need 10 million to hit that tipping point, then millions of more people will want one suddenly, he said.

By comparison, research firm IDC forecasts that about 4 million smartwatches will be sold this year, more than double the 1.7 million sold in 2013. The top brands are Samsung and Pebble.

Canaccord Genuity analyst Michael Walkley gives an even rosier outlook, forecasting 14 million will sell during fiscal 2015 and 25 million in fiscal 2016.

“We believe our estimates could prove conservative, as we were impressed with the design, user interface, and features included in Apple watches,”he said in a client note. “We believe the fitness and health features are the most compelling in terms of driving sales of the new product category for Apple and could also drive stronger demand than our initial estimates.”

Even so, there are a few sticking points that could keep the device from being a success. The first is its price tag, which starts at $349. Several analysts said that’s more than they were expecting.

“There may be consumer concern about the price,”said eMarketer senior analyst Cathy Boyle. “It’s going to catch a lot of people’s attention, but adoption is going to be gradual.”

A slow build won’t necessarily doom the product.