Xiaomi 15 Review: Specs, Features, and Performance Breakdown
- Mar 22, 2025
- 7 min read
Updated: Apr 23, 2025
After launching in China last year, Xiaomi is finally bringing its Xiaomi 15 lineup to the global market. The first and most affordable in the series is the Xiaomi 15, a compact high-end smartphone that goes head to head with the Samsung S25, iPhone 16, and Google Pixel 9.
For $899, you’re getting a lot for your money. The 6.36” display keeps it fairly compact, and while its cameras aren’t as advanced as the Pro and Ultra models, the three Leica lenses still take some great shots. The phone runs on the Snapdragon 8 Elite processor, keeping everything fast and smooth, whether you’re gaming, multitasking, or using its smart features, right in line with what Samsung and Apple offer.
It’s not perfect though. There’s quite a bit of pre-installed bloatware, which feels unnecessary for a premium device. The design is a bit plain, and it gets a little warm when pushed hard. But after a week of using the Xiaomi 15 as my daily phone, I have to say it’s an impressive package. The clean and smooth HyperOS, excellent cameras, solid battery life, and ultra-responsive performance make it a strong contender in the $1,000 price range.
Pros | Cons |
Boring but sleek, effective and functional design | Some thermal issues |
Good battery life | HyperOS 2.0 is bloat-heavy |
Stellar performance across the board | Ultrawide camera is meh |
Great camera setup |
Xiaomi 15 Specs | |
Battery Size | 5340mAh |
Camera Resolution (Rear; Front-Facing) | 50MP main camera, 50MP telephoto, 50MP ultrawide; 32MP front camera |
Chipset | Snapdragon 8 Elite |
Dimensions | 152.3 x 71.2 x 8.1mm |
Display Resolution | 1200 x 2670 pixels, 20:9 ratio |
Display Size | 6.36" AMOLED, 120Hz |
GPU | Adreno 830 |
Operating System | HyperOS 2, Android 15 |
Weight | 189g |
Design and Features
The Xiaomi 15 is compact and lightweight, measuring 152.3 x 71.2 x 8.08mm and weighing 191g. It’s one of the smaller flagship devices available in 2025, though it’s a bit bulkier than the Samsung S25 and iPhone 16. The design is quite similar to its predecessor, the Xiaomi 14, with only subtle changes to the overall look.
The phone features a flat glass front and back, paired with an aluminum alloy frame that has a matte finish. This frame curves gently into the rear panel, making it comfortable to hold and use compared to the Samsung S25. The back glass, protected by Xiaomi’s Dragon Crystal Glass, feels sturdy, resists fingerprints well, and has a frosted matte texture available in four colors: black, white, green, and liquid silver.
However, the design is still rather…average. It’s not going to turn heads or become a fashion piece in your accessory, and there is nothing ultra-modern about it either. As such, the showpiece of the design becomes the large square camera module on the rear - housing Leica-branded lenses - which protrudes noticeably but doesn’t wobble on flat surfaces unless you push the top of the phone aggressively.
Build quality is solid, with an IP68 rating for dust and water resistance. Xiaomi claims the frame is 33% stronger than the Xiaomi 14’s, and the Dragon Crystal Glass is touted as being 10 times more durable than Gorilla Glass Victus. A TPU case is included in the box, which should provide some basic protection and makes the device less resistant to accidental slippage.
Feature-wise, the Xiaomi 15 is powered by the Snapdragon 8 Elite chipset, paired with 12GB or 16GB of DDR5 RAM and storage options of 256GB, 512GB, or 1TB. It runs on HyperOS 2.0 on top of Android 15, offering a smooth but bloatware-heavy experience.
You can delete most of the pre-installed apps from the device (excluding any Google ones, unfortunately), but the last thing I want to do after spending so much on a smartphone is hunting down irrelevant apps that I will never use (this includes the Xiaomi’s “GetApps” store - I am happy with the Google Play Store, thank you very much). Software support includes four OS upgrades and six years of security patches - which is somewhat inline with what Samsung and others offer as well, which is great.
As for the I/O, Xiaomi keeps it simple. The right side has the volume and power buttons, the front has a pin-hole-sized selfie camera and speaker piece, while the bottom has a full-fledged speaker grill, the USB-C port for charging, and a SIM card slot that can take two nano SIMs. Connectivity is robust with eSIM, WiFi 7, Bluetooth 5.4, NFC, dual-band GPS, and an IR blaster for controlling TVs and other devices.
Display and Speakers
The Xiaomi 15 has a 6.36” LTPO OLED display, offering a resolution of 2670 x 1200 pixels and a sharp 460ppi. With super-slim 1.4mm bezels, it achieves a 94% screen-to-body ratio, so you get more screen space without making the phone feel bulky – perfect for media consumption.
The display also features a dynamic refresh rate ranging from 1Hz to 120Hz and is certified for HDR10+ and Dolby Vision. It can get bright, reaching up to 3,200 nits in HDR, but on regular sunny days, the standard peak brightness can fall short, making it a little tough to see due to the screen's reflectiveness.
I tested the display with a mix of YouTube videos, TV shows, image editing, and endless social media scrolling, and it worked as you'd expect from a flagship phone. The OLED display does most of the heavy lifting here, delivering deep blacks, sharp image quality, and well-rounded control of the dynamics of HDR content, with deft handling of colors and contrast.
The stereo speakers, on the other hand, are fairly average. The mids and highs are clear, with vocals standing out well, but at loud volumes, they tend to become a little shouty. The bass is present but not punchy, which might disappoint users who would want to use the device for music listening – in that case, some good-quality Bluetooth earbuds are advised (supporting codecs include LDAC, aptX, and AAC). They aren’t bad for watching videos on YouTube and vibing to a song or two, but for any serious media consumption, they won’t quite cut it.
Camera Performance
The Xiaomi 15 has almost the same camera setup as the Xiaomi 14, with the Leica branding now included. That doesn't mean the cameras are bad by any means—they're still solid for a high-end phone. The only difference is the telephoto sensor, which now offers 2.6x optical zoom instead of 3.2x. It all runs smoothly with the Xiaomi Imaging Engine, making sure the colors stay the same across all the cameras.
When shooting in the daytime, the Xiaomi 15 really shines. It gets most things right. The range of light and dark areas is great, and so are the colors, contrasts, and highlights. It also keeps a lot of detail in the shot (you can actually make out the bumps on the walls), which makes the photos bright and lively.
The 2x, 2.6x, and 5x zoom shots are of similar nature. I did not notice any loss of detail, with similar control over the dynamic range and colors.
Aspect | Details |
Macro Lens | No dedicated macro lens; uses the telephoto lens for close-up shots. Not effective at extreme close range. |
Close-up Performance | Image lacks sharpness; colors are accurate but slightly oversaturated. Overall photo is soft. |
Ultra-Wide Shots | Soft image, lacks detail, average colors and contrast, slight bending around the corners. |
Nighttime Shots | Some softness in details, especially in the main and telephoto lenses, but no compression or color banding. |
Operating System, Performance, and Battery Life
The Xiaomi 15 comes with HyperOS 2.0, based on Android 15. With the Snapdragon 8 Elite chipset and 12GB of RAM, the phone feels super fast and responsive. Apps open quickly, animations are smooth, and there’s no lag to be found. The phone handles memory really well, keeping apps open for a long time so you can easily pick up right where you left off (this is great for apps like Twitter that tend to refresh when you look away).
Smart Features
Even though the Snapdragon 8 Elite is great for handling smart tasks, Xiaomi still depends on cloud services for some of its features. Hopefully, they'll bring more of this processing to the phone itself soon. HyperOS 2.0 offers tons of useful tools like translating text, summarizing articles, proofreading, re-writing text, adding captions, transcribing, and more. Most of these features are in the Notes app, but you can use them in any app where you type, like WhatsApp.
The Recorder app can even figure out who’s speaking, which is handy for transcribing conversations. Xiaomi also has a translator app, but I couldn’t find it on my phone—maybe it’s not available in my region yet.
Performance Benchmarks
Benchmark | Score |
Geekbench 6 CPU - Single Core | 3027 |
Geekbench 6 CPU - Multi Core | 9111 |
Geekbench 6 GPU | 18913 |
Geekbench 6 AI | 53922 |
3DMark Steel Nomad Extreme | 2181 |
3DMark Solar Bay | 10494 |
3DMark Wild Life Extreme | 6021 |
The Snapdragon 8 Elite chipset has 8 cores (2 super-fast ones running at 4.32GHz and 6 more efficient ones at 3.53GHz), and it uses the Adreno 830 GPU. When it comes to performance, the Xiaomi 15 doesn’t disappoint. Whether you’re jumping between apps, editing photos, recording videos, or scrolling through social media, everything is smooth and quick. Gaming is great too—both PUBG Mobile and Call of Duty Warzone Mobile ran perfectly at high settings, with no frame drops and a steady 60fps.
Heat and Thermal Performance
The Xiaomi 15 does get a bit warm, especially when you’re using the camera or doing more demanding tasks. I didn’t notice any drop in performance during 30-minute gaming sessions, but it could start affecting performance over time as it heats up.
Battery Life
The 5,240mAh battery lasts about two full days with light use (or 1.5 days if you play a bit of games). The phone supports 90W fast charging, though you’ll need to get the charger separately. Charging it fully takes around 50 minutes, and just 15 minutes of charging will get you 40-45% battery, which is pretty impressive.
Should You Buy the Xiaomi 15?
If you already have the Xiaomi 14, upgrading might not be necessary unless you really want the better battery life or the new chipset. The cameras are almost the same, so not much has changed.
But if you’re looking for a powerful, compact flagship, the Xiaomi 15 is definitely a strong choice. It handles everything really well, has great cameras, and includes useful smart features. At $899, it’s priced similarly to the Samsung S25, but since the S25 is already on sale, I personally like the simpler, more straightforward software experience of the S25.
