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Samsung - Galaxy S26 Ultra vs Xiaomi 15 Pro

Last updated · How Mars Score works
Galaxy S26 UltraSAMSUNGRENDER
Probe A
Samsung
Galaxy S26 Ultra
75.6/ 100B
Performance77· 25%
Battery63· 20%
Display72· 18%
Cameras92· 18%
Design· 8%
Connectivity· 7%
Operating System· 4%
Xiaomi 15 ProXIAOMIRENDER
Probe B
Xiaomi
Xiaomi 15 Pro
74.0/ 100B
Performance79· 25%
Battery75· 20%
Display70· 18%
Cameras70· 18%
Design· 8%
Connectivity· 7%
Operating System· 4%
Quick verdict

Between the Galaxy S26 Ultra and Xiaomi 15 Pro, the Galaxy S26 Ultra comes out ahead in main camera and screen size, while the Xiaomi 15 Pro wins on wireless charging and front camera. Overall, the Galaxy S26 Ultra scores 75.6 and the Xiaomi 15 Pro scores 74 on our Mars Score.

Buying advice

Which should you buy?

These two are nearly even on the Mars Score (75.6 vs 74). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.

Pick the Galaxy S26 Ultra if you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are main camera, screen size, promised os updates.

Pick the Xiaomi 15 Pro if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are wireless charging, front camera, wired charging, among others.

Both ship with comparable ram, refresh rate, 5g support, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.

Why Samsung - Galaxy S26 Ultra wins

  • Main camera — 300.00% more. 200 MP vs 50 MP.
  • Screen size — 2.53% more. 6.9 " vs 6.73 ".
  • Promised OS updates: 7 (vs 4).

Why Xiaomi 15 Pro wins

  • Wireless charging — 233.33% more. 50 W vs 15 W.
  • Front camera — 166.67% more. 32 MP vs 12 MP.
  • Wired charging — 38.46% more. 90 W vs 65 W.
  • Battery capacity — 22.00% more. 6100 mAh vs 5000 mAh.
  • Weight — 19.00 g less. 213 vs 232.
  • AnTuTu — 17.32% more. 2710000 vs 2310000.
  • Pixel density — 4.19% more. 522 ppi vs 501 ppi.
Full readout

Spec comparison

Design

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
Weight232 g213 glead
Thickness8.6 mm8.4 mmlead
Water resistanceIP68IP68
Form factorbarbar

Display

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
Screen size6.9 "lead6.73 "
Pixel density501 ppi522 ppilead
Refresh rate120 Hz120 Hz
Peak brightness2600 nits3200 nitslead

Performance

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
RAM16 GB16 GB
Storage512 GB512 GB
AnTuTu23100002710000lead
CPU total clock22.8 GHz22.8 GHz

Cameras

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
Main camera200 MPlead50 MP
Front camera12 MP32 MPlead
Optical image stabilizationtruetrue

Battery

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
Battery capacity5000 mAh6100 mAhlead
Wired charging65 W90 Wlead
Wireless charging15 W50 Wlead

Connectivity

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
5G supporttruetrue
Headphone jackfalsefalse
microSD slotfalsefalse

Operating System

SpecSamsung - Galaxy S26 UltraXiaomi 15 Pro
OSAndroidAndroid
Promised OS updates7 yearslead4 years
Reader questions

Frequently asked

Which has better battery, Galaxy S26 Ultra or Xiaomi 15 Pro?+

Xiaomi 15 Pro has 22.0% more battery — 5000 mAh vs 6100 mAh.

Which is lighter, Galaxy S26 Ultra or Xiaomi 15 Pro?+

Xiaomi 15 Pro is 19g lighter — 232g vs 213g.

Is Galaxy S26 Ultra waterproof?+

Galaxy S26 Ultra has an IP68 rating.

Does Xiaomi 15 Pro support 5G?+

Yes, Xiaomi 15 Pro supports 5G.

Which has a better camera, Galaxy S26 Ultra or Xiaomi 15 Pro?+

Galaxy S26 Ultra has a 200 MP main camera vs 50 MP.

Drill down

Spec-level deep dives

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