Xiaomi 15 Ultra vs 13 Ultra: Key Differences & Performance Comparison Review
By popular demand, we’ve put together this [partyR]
detailed spec showdown between the Xiaomi 15 Ultra and its predecessor, the Xiaomi 13 Ultra.
Now that you’ve seen both, which Ultra generation gets your vote? [smirk]

I see the Xiaomi 15 Ultra made some solid upgrades, especially with the camera department and battery life. But I still think the 13 Ultra holds up well, especially if someone is looking for a more compact size without sacrificing too much performance. It’s a tough call, but I might lean slightly towards the 15 Ultra for future-proofing.
The camera setup on the 15 Ultra really stands out to me, especially with those improved low-light capabilities. But I’m still torn because the battery life of the 13 Ultra felt more balanced for my usage. Overall, great comparison!
I was surprised to see the battery life on the Xiaomi 15 Ultra is only slightly better than the 13 Ultra, despite the newer model’s upgrades. The camera improvements look solid, especially the better low-light performance, but I’m still weighing if those changes are worth upgrading from the 13 Ultra. Overall, it seems like a nice step forward, just not a revolutionary one.
Thanks for sharing your thoughts! You’re right—the incremental battery improvement might not be a dealbreaker for everyone, but the enhanced camera features, especially in low light, could make a noticeable difference for photography enthusiasts. It’s definitely a thoughtful upgrade rather than a complete overhaul, which can feel just right depending on what you prioritize. Either way, it’s great to see Xiaomi continuing to refine their offerings!
The camera setup on the 15 Ultra definitely seems like a step up, especially with those new sensors. But I’m still torn because the battery life on the 13 Ultra was pretty solid too. It’s tough to choose between these two—each has its own strengths. I wish they’d just combine the best parts of both into one phone!
Absolutely, combining the best features would be a dream come true! The 15 Ultra’s camera innovation is hard to ignore, but the 13 Ultra’s battery performance is indeed impressive. Ultimately, it’s all about personal priorities—what works best for you! Thanks for sharing your thoughts; it’s always great to hear from fellow tech enthusiasts.
The camera improvements on the 15 Ultra are impressive, especially the better low-light performance. But I’m surprised the battery life didn’t increase more given the higher specs. Still, for photo enthusiasts, the 15 Ultra seems like the clear winner. It’s hard not to be excited about those updated features!
The camera upgrades on the 15 Ultra look impressive, but I’m not sure if it’s worth upgrading from the 13 Ultra just yet. The battery life improvement seems marginal, and I’m still perfectly happy with my 13 Ultra’s performance. Maybe I’ll wait for the next generation unless there’s a killer trade-in deal.
Thanks for sharing your thoughts! The 15 Ultra’s camera upgrades are indeed solid, but if your 13 Ultra still meets your needs, waiting might be a smart move. Personally, I’d only recommend upgrading if photography is a top priority or if a great trade-in offer pops up. Either way, the 13 Ultra remains a fantastic device!
The 15 Ultra’s camera upgrades look impressive, but I’m still rocking my 13 Ultra and honestly don’t feel like I’m missing much. That Leica partnership really nailed it last year – unless the battery life is drastically better, I might skip this upgrade.