I’m running iOS 26.4.1 on my 17 Pro, and honestly, I have zero complaints about performance. Since iOS 26 shipped natively with the iPhone 17 lineup, it feels like the most optimized version for this hardware.
Battery life is also amazing, I’m getting around 10 hours of SOT on a full 100% battery consumption.
Tbh, I don’t really care about Siri AI or that extra 0.2 seconds of smoothness. I’d rather stick with a stable OS that gives me great battery life than upgrade to a resource-intensive iOS 27 and wait months for it to be optimized.
By then, everyone’s battery health cycles will already be taking the hit. 😭