Kerry Wan and Prakhar Khanna/ZDNET Follow ZDNET:  Add us as a preferred source  on Google. Motorola's first-ever book-style foldable is finally here. After checking it out at CES and MWC earlier this year, I was curious to see the price tag and how it compares to two popular models from Samsung and Google. I have tried all three foldables and have some thoughts. Also: Motorola Razr Fold review Each one of them has its unique appeal, but that doesn't mean all three hold equal value. Some might prefer a thin, lightweight design, while others might want a more durable form factor. Here's how the new Motorola Razr Fold compares to the Samsung Galaxy Z Fold 7 and Google Pixel 10 Pro Fold . And which one's perfect for you. You should buy the Samsung Galaxy Z Fold 7 if… 1. You want the slimmest and lightest foldable phone Samsung surprised me with the Galaxy Z Fold 7 last year. While I'm looking forward to what it does with the Fold 8, the current-gen.…