Pixel 10 vs Xiaomi 15 Ultra
The Pixel 10 and the Xiaomi 15 Ultra land in the same flagship smartphone category, so the comparison is fair, and the differences are telling. The numbers lean one way: the Xiaomi 15 Ultra comes out ahead in 5 of the 6 areas we compared, with its clearest lead in the camera category.
At a glance
- Display Xiaomi 15 Ultra wins
- Performance Xiaomi 15 Ultra wins
- Memory & Storage Xiaomi 15 Ultra wins
- Camera Xiaomi 15 Ultra wins
- Battery & Charging Xiaomi 15 Ultra wins
- Software & Updates Pixel 10 wins
- Display5.6
- Performance5.9
- Memory & Storage1.3
- Camera2.2
- Battery & Charging2.2
- Display7.2
- Performance9.7
- Memory & Storage8.1
- Camera5.7
- Battery & Charging6.4
Spec scores (0 to 10) are calculated from manufacturer specs against other models in the same class. See how the formula works. They are not reviews or user ratings.
Key Differences
-
The Pixel 10 has 3 years of extra promised updates
The numbers aren’t close. The Pixel 10 lists 7 years for promised os updates, while the Xiaomi 15 Ultra lists 4 years. The Pixel 10’s longer software support can also help its resale value later on.
-
The Xiaomi 15 Ultra has 4 GB more RAM
A clear win for the Xiaomi 15 Ultra: 16 GB against 12 GB. Few specs in this matchup are as one-sided. Opening a single app, you won’t feel the difference. With lots of tabs, a game and the camera in rotation, the Xiaomi 15 Ultra has more room to work with.
-
The Xiaomi 15 Ultra has 512 GB of base storage instead of 128 GB
Here the Xiaomi 15 Ultra pulls well ahead of the Pixel 10, with 512 GB compared to 128 GB. The Xiaomi 15 Ultra starts with more room, which means fewer “storage full” warnings and less time deleting old videos.
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The Xiaomi 15 Ultra has a dedicated 200 MP telephoto camera
The Xiaomi 15 Ultra doesn’t just edge this one; 200 MP against 11 MP is a lead you’ll feel. Telephoto lenses earn their keep at concerts, school events and portraits: anywhere you can’t simply walk closer.
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The Xiaomi 15 Ultra has faster 90 W wired charging
Big gap, real consequences. The Xiaomi 15 Ultra’s 90 W versus the Pixel 10’s 29 W changes how the two compare in daily use. Peak charging speeds depend on a compatible charger, which may not come in the box.
Design & Size
- Pixel 10 6.02 in × 2.83 in × 0.34 in
- Xiaomi 15 Ultra 6.35 in × 2.96 in × 0.37 in
The Xiaomi 15 Ultra simply takes up more room than the Pixel 10, whether that’s on a desk, in a bag or in a parking space. The Pixel 10 weighs 0.78 oz less than the Xiaomi 15 Ultra. The Pixel 10 keeps a lower profile: 0.03 in thinner than the Xiaomi 15 Ultra.
Design & Build
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Height | 6.02 in | 6.35 in |
| Width | 2.83 in | 2.96 in |
| Thickness | 0.34 in (winner) | 0.37 in Thickest in class |
| Weight | 7.20 oz (winner) | 7.97 oz |
| Water & dust rating | IP68 | IP68 |
| Frame | Aluminum | Aluminum |
Display
Xiaomi 15 Ultra leads
The Xiaomi 15 Ultra wins the display section decisively. The Xiaomi 15 Ultra comes with 24% sharper pixel density. The Xiaomi 15 Ultra packs its pixels more tightly, which shows most in small text, fine patterns and zoomed-in photos. The takeaway: on display, the Xiaomi 15 Ultra is the stronger phone.
Pixel density
Pixel 10: 422 ppi Xiaomi 15 Ultra: 522 ppi Pixel density matters most if you hold your phone close or read a lot of small type; for casual use, the gap is subtle.
Screen size
Pixel 10: 6.3 in Xiaomi 15 Ultra: 6.7 in A larger display also means a larger phone overall, so this is as much about your hands and pockets as it is about the picture.
Performance
Xiaomi 15 Ultra leads
Look at the performance table and one name keeps coming out on top: the Xiaomi 15 Ultra. The Xiaomi 15 Ultra brings 4 GB more RAM. More RAM lets a phone keep more apps open in the background, so switching back to them is instant instead of a reload. If this section decides it for you, choose the Xiaomi 15 Ultra.
RAM
Pixel 10: 12 GB Xiaomi 15 Ultra: 16 GB Extra memory also gives the Xiaomi 15 Ultra more headroom for heavier apps and for software updates in the years ahead.
Memory & Storage
Xiaomi 15 Ultra leads
Here the Xiaomi 15 Ultra opens up one of its biggest leads in the comparison. The Xiaomi 15 Ultra takes this one with 512 GB of base storage instead of 128 GB. If you shoot a lot of video or keep music and maps offline, base storage is one of the specs you’ll feel most over the years. If memory & storage is your priority, the Xiaomi 15 Ultra is the phone to pick.
Base storage
Pixel 10: 128 GB Xiaomi 15 Ultra: 512 GB Base storage is what you get without paying extra. Photos, videos and apps add up quickly, so more space at the entry price is real value.
Max storage
Pixel 10: 256 GB Xiaomi 15 Ultra: 1 TB Most buyers are fine with a base or middle tier, so this is a niche advantage, but a real one if you need it.
Camera
Xiaomi 15 Ultra leads
No contest in camera: the Xiaomi 15 Ultra is the stronger of the two. On the Xiaomi 15 Ultra, you get a dedicated 200 MP telephoto camera. A dedicated telephoto camera captures distant subjects and portraits without heavy cropping, which keeps detail intact. Here the Pixel 10 offers 5× optical zoom versus 4.3×. Prioritize camera, and the Xiaomi 15 Ultra is where you should land.
Telephoto camera
Pixel 10: 11 MP Xiaomi 15 Ultra: 200 MP A higher-resolution telephoto keeps more detail when you zoom, and gives the Xiaomi 15 Ultra a stronger tool for portraits and distant subjects.
Optical zoom
Pixel 10: 5× Xiaomi 15 Ultra: 4.3× Higher optical zoom lets you frame distant subjects tightly without losing detail to digital cropping.
Battery & Charging
Xiaomi 15 Ultra leads
This section belongs to the Xiaomi 15 Ultra. In battery & charging, it leads the Pixel 10 by a margin that’s hard to ignore. The Xiaomi 15 Ultra has the edge with faster 90 W wired charging. Faster wired charging means a short top-up before you head out goes further. The battery & charging verdict goes to the Xiaomi 15 Ultra.
Wired charging
Pixel 10: 29 W Xiaomi 15 Ultra: 90 W The Xiaomi 15 Ultra refills faster on a cable, which matters most on the mornings you forgot to charge overnight.
Battery capacity
Pixel 10: 4,970 mAh Xiaomi 15 Ultra: 5,410 mAh Extra capacity also ages better: after a few years of charge cycles, the Xiaomi 15 Ultra has more headroom left.
Software & Updates
Pixel 10 leads
The Pixel 10 dominates the software & updates section, and the gaps are large enough to matter in daily use. Choose the Pixel 10 and you get 3 years of extra promised updates. Software support is what separates a phone that ages gracefully from one that doesn’t, making it one of the most practical lines on the spec sheet. On software & updates alone, the Pixel 10 gets the nod.
Promised OS updates
Pixel 10: 7 years Xiaomi 15 Ultra: 4 years A longer update promise keeps the phone secure and current for longer, which matters if you keep devices for several years.
Full Specifications
Display
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Screen size | 6.3 in | 6.7 in |
| Panel type | OLED (Actua) | LTPO AMOLED |
| Resolution | 2424 x 1080 | 3200 x 1440 |
| Pixel density | 422 ppi | 522 ppi (winner) Sharpest screen in class |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,000 nits | 3,200 nits |
| Always-on display | Yes | N/A (not specified) |
Performance
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Chipset | Google Tensor G5 | Snapdragon 8 Elite |
| CPU cores | 8 | 8 |
| Process node | 3 nm | 3 nm |
| RAM | 12 GB | 16 GB (winner) |
Memory & Storage
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Base storage | 128 GB | 512 GB (winner) |
| Max storage | 256 GB | 1 TB (winner) |
| microSD slot | No | No |
Camera
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Main camera | 48 MP | 50 MP |
| Ultra-wide camera | 13 MP | 50 MP (winner) |
| Telephoto camera | 11 MP | 200 MP (winner) |
| Optical zoom | 5× (winner) | 4.3× |
| Rear cameras | 3 | 4 (winner) |
| Front camera | 11 MP | 32 MP (winner) |
| Max video | 4K60 | 8K30 |
Battery & Charging
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Battery capacity | 4,970 mAh | 5,410 mAh (winner) |
| Wired charging | 29 W | 90 W (winner) |
| Wireless charging | 15 W | 80 W (winner) |
| Port | USB-C | USB-C (USB 3.2) |
Software & Updates
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| OS at launch | Android 16 | HyperOS 2 (Android 15) |
| Promised OS updatesManufacturer commitment | 7 years (winner) | 4 years |
Design & Build
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Height | 6.02 in | 6.35 in |
| Width | 2.83 in | 2.96 in |
| Thickness | 0.34 in (winner) | 0.37 in Thickest in class |
| Weight | 7.20 oz (winner) | 7.97 oz |
| Water & dust rating | IP68 | IP68 |
| Frame | Aluminum | Aluminum |
Price
| Spec | Pixel 10 | Xiaomi 15 Ultra |
|---|---|---|
| Launch price | $799 | N/A (not specified) |
“N/A” means the manufacturer does not specify the value or we could not confirm it. Figures marked “manufacturer rating” are the maker’s own claims, not our measurements.
Which One Should You Buy?
Choose the Pixel 10 if…
- you want software support that lasts longer (7 years vs 4 years)
- you want more optical reach (5× vs 4.3×)
- you notice every gram in your pocket (7.20 oz vs 7.97 oz)
- you care about a thin profile in your pocket (0.34 in vs 0.37 in)
Choose the Xiaomi 15 Ultra if…
- you keep lots of apps open at once (16 GB vs 12 GB of RAM)
- you shoot a lot of photos and video (512 GB vs 128 GB base storage)
- you want the stronger telephoto camera (200 MP vs 11 MP)
- you want the faster cable charging (90 W vs 29 W)
Also Compared
Frequently Asked Questions
Should I buy the Pixel 10 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra makes more sense overall. Consider the alternative only if you value 3 years of extra promised updates above everything else.
Which has better battery life, the Pixel 10 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra comes out ahead on battery capacity, with 5,410 mAh compared with 4,970 mAh on the Pixel 10.
Is the Pixel 10 bigger than the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is the larger of the two. It measures 6.35 × 2.96 × 0.37 in, compared with 6.02 × 2.83 × 0.34 in for the Pixel 10.
Does the Pixel 10 perform better than the Xiaomi 15 Ultra?
Going by the specs, the Xiaomi 15 Ultra comes out ahead: it offers 4 GB more RAM.
Which has the better camera, the Pixel 10 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera specs thanks to a dedicated 200 MP telephoto camera and an extra rear camera. Processing and personal taste also play a big part in photos.
Is the Pixel 10’s display better than the Xiaomi 15 Ultra’s?
On display specs, the Xiaomi 15 Ultra leads thanks to 24% sharper pixel density.
Executive Summary
Here’s my take on Google’s Pixel 10 versus Xiaomi’s Xiaomi 15 Ultra. The biggest reason I lean toward the Xiaomi 15 Ultra is simple: it has 4 GB more RAM. Stack 512 GB of base storage instead of 128 GB on top of that, and the Xiaomi 15 Ultra’s lead grows. Still, if you care most about 3 years of extra promised updates, the Pixel 10 deserves a look.
For software & updates, the Pixel 10 fits better. For display, the Xiaomi 15 Ultra is the better match.
My pick: I think most people will be happier with the Xiaomi 15 Ultra, unless what you want most is 3 years of extra promised updates.
Personal opinion based on the data above. Your priorities may differ.