noun, noun which may take the genitive case particle 'no'
newly purchased item; new thing
Casual, slightly playful term for something just bought, often used among friends or in light conversation. The honorific お adds a friendly, cute tone.
昨日買ったおニューの靴、見て！
Look at the new shoes I bought yesterday!
おニューのスマホ、もう落としちゃった。
I already dropped my brand-new smartphone.
新入り refers to a newcomer or new member, not a purchased item.
From お (honorific prefix) + ニュー (from English 'new'). A casual, modern coinage.