"A powerful, modern chip for a budget price, if you accept the renewed-battery lottery."
An 'Unlocked Renewed iPhone 13' means you get the core processing power and camera optics of a recent flagship, but the battery life and cosmetic condition are variables dependent on the seller's undisclosed standards.
This is for the user prioritizing iOS and long-term software support on a strict budget. It's a logical purchase for someone comfortable with the potential cost of a future battery replacement to secure an A15 chip at this price.
Buyers who require guaranteed all-day battery life or a cosmetically perfect device should look elsewhere. Anyone unwilling to gamble on the condition of a non-certified refurbished product would be better served by a new, albeit less powerful, device.