iPad Pro 12.9 (3rd Gen.) 512GB Space Gray (WiFi) vs Apple iPad Pro 12.9" 3rd Generation
These are the same tablet: both are the 12.9-inch iPad Pro 3rd generation with the A12X chip, a 2732x2048 display at 600 nits, and 10 hours of battery life. The real difference is the listing, not the hardware. Product A is a certified refurbished 512GB unit from ItsWorthMore with a 12-month warranty and 30-day returns, so check its price against B's 512GB price before deciding. Buy A if the refurbished price is clearly lower and you want the warranty; buy B if you want a new or differently graded unit or a different storage tier.
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iPad Pro 12.9 (3rd Gen.) 512GB Space Gray (WiFi)
Choose the iPad Pro 12.9 (3rd Gen.) 512GB refurbished if you want 512GB of storage at a lower price with a 12-month warranty and 30-day returns.