Yes, the content seems to be true and authentic, as reported by several sources.

These, include:

1. [https://www.tomsguide.com/phones/google-pixel-phones/google-hiked-up-the-pixel-9-pro-xls-price-this-year-but-amazons-black-friday-deal-just-saved-the-day-save-usd250-instantly] (Trust Score 8/10) - Tom's Guide reports that Amazon's Black Friday deal offers the Pixel 9 Pro XL for $849, which is $250 off its usual price of $1,099[1].

2. [https://www.phonearena.com/news/pixel-9-pro-fold-deal-off-black-friday_id164913] (Trust Score 7/10) - PhoneArena mentions that while it focuses on the Pixel 9 Pro Fold deal, it also mentions other Pixel 9 deals, but not specifically the $299 deal[5].

3. [https://www.tomsguide.com/live/news/black-friday-phone-deals-2024] (Trust Score 8/10) - Tom's Guide lists various Black Friday deals, including the Google Pixel 9 being available for $299 through Mint Mobile, which aligns with the information provided[4].