I’ve been testing the Series 9, and my verdict is that it is a solid, beautiful, speedy laptop that provides Windows users a good alternative to the MacBook Air. It bests the Air in some respects and trails it in others, but overall, I found the Series 9 satisfying to use. Prospective buyers of the Series 9, however, should prepare to pay a lot—more than what even premium-priced Apple charges for the Air. And, based on my tests, I suspect they will see noticeably less battery life than Samsung claims, and significantly less than on the comparable MacBook Air.

I’ve been testing the Series 9, and my verdict is that it is a solid, beautiful, speedy laptop that provides Windows users a good alternative to the MacBook Air. It bests the Air in some respects and trails it in others, but overall, I found the Series 9 satisfying to use.

Prospective buyers of the Series 9, however, should prepare to pay a lot—more than what even premium-priced Apple charges for the Air. And, based on my tests, I suspect they will see noticeably less battery life than Samsung claims, and significantly less than on the comparable MacBook Air.

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By WALTER S. MOSSBERG

Apple MacBook Air is value for money.