LET'S
COMPARE
LET'S
COMPARE

Making informed decisions easier by providing comprehensive comparisons across various categories.

Quick Links

  • Home
  • FAQ
  • About

Legal

  • Privacy Policy
  • Terms & Conditions
  • Cookie Policy

Contact

[email protected]

© 2026Let's Compare. All rights reserved.

LET'S
COMPARE
  1. Home
  2. /Smartphones
  3. /OnePlus 15 vs Xiaomi 17 Ultra

OnePlus 15 vs Xiaomi 17 Ultra

Verdict

Our overall take, at a glance

Key takeaways

  • OnePlus 15 and Xiaomi 17 Ultra are closely matched overall (within 4 points).
  • OnePlus 15 stands out on Storage capacity: 1,024 GB, Display Pixel density: 450 PPI, Display Refresh rate: 165 Hz.
  • Xiaomi 17 Ultra counters with Display Size: 6.9 in, Display Screen-to-body ratio: 92.3%, Rear camera aperture: 1.7.
OnePlus 15 and Xiaomi 17 Ultra are closely matched
OnePlus 15
81
Xiaomi 17 Ultra
77
Where OnePlus 15 stands out
  • Storage capacity: 1,024 GB
  • Display Pixel density: 450 PPI
  • Display Refresh rate: 165 Hz
Where Xiaomi 17 Ultra stands out
  • Display Size: 6.9 in
  • Display Screen-to-body ratio: 92.3%
  • Rear camera aperture: 1.7

Value for Money

Which is the better deal for the price

Enter today's price for each product to see which offers better value. Use the same currency for both.

OnePlus 15

Check Price on Amazon

Xiaomi 17 Ultra

Check Price on Amazon

Battery capacity

Larger cell — a hardware spec, not battery life

OnePlus 157,300 mAh
Xiaomi 17 Ultra6,000 mAh

Capacity is the raw battery size. Real-world battery life depends just as much on the processor, software and display.

Physical Comparison

Weigh them up, then compare real dimensions in 3D

211 g218 g
OnePlus 15Xiaomi 17 Ultra

Xiaomi 17 Ultra is 7 g (3%) heavier than OnePlus 15.

Sponsored

Ad — helps keep Let's Compare free

Advertisement

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Chip

Feature
OnePlus 15
Xiaomi 17 Ultra
Model
Snapdragon 8 Elite Gen 5
Snapdragon 8 Elite Gen 5

Memory

Feature
OnePlus 15
Xiaomi 17 Ultra
RAM capacity
16 GB
16 GB
Memory technology
UFS 4.1

Storage

Feature
OnePlus 15
Xiaomi 17 Ultra
Storage capacity
1,024 GB
512 GB
Is expandable
No
No

Display

Feature
OnePlus 15
Xiaomi 17 Ultra
Size
6.78 in
6.9 in
Resolution
1272 × 2772 px
1200 × 2608 px
Pixel density
450 PPI
416 PPI
Refresh rate
165 Hz
120 Hz
Display technology
Protection
Xiaomi Shield Glass 3.0
Has pen support
No
N/A
Screen-to-body ratio
91%92%

Rear Camera

Feature
OnePlus 15
Xiaomi 17 Ultra
Rear camera (megapixels)
50 MP
50 MP
Rear camera aperture
1.8
1.7
Optical zoom
3.5
N/A
Has High Dynamic Range (HDR)
Yes
Yes
Has Optical Image Stabilization (OIS)
Yes
Yes
Number of cameras
3
3
Other cameras
N/A
N/A

Front Camera

Feature
OnePlus 15
Xiaomi 17 Ultra
Front camera (megapixels)
32 MP
50 MP
Front camera aperture
2.4
2.2

Cellular

Feature
OnePlus 15
Xiaomi 17 Ultra
Cellular technology
SIM type
Has dual-sim support
Yes
Yes

Connectivity

Feature
OnePlus 15
Xiaomi 17 Ultra
Bluetooth technology
Bluetooth 6.0
Bluetooth 6.0
Wi-Fi technology
Connector
USB Type-C 3.2
USB Type-C 3.2 Gen 2
Has a headphone jack
No
No

Sensors

Feature
OnePlus 15
Xiaomi 17 Ultra
Has a NFC sensor
Yes
Yes
Has an accelerometer sensor
Yes
Yes
Has a gyroscope sensor
Yes
Yes
Has a magnetic field sensor
Yes
Yes
Has an atmospheric pressure sensor
Yes
Yes
Has a GPS sensor
Yes
Yes

Design & Weight

Feature
OnePlus 15
Xiaomi 17 Ultra
Color
N/A
N/A
Dimensions
16.14 × 7.67 × 0.81 cm
16.29 × 7.76 × 0.83 cm
Weight
211 g
218 g

Power & Battery

Feature
OnePlus 15
Xiaomi 17 Ultra
Battery capacity
7,300 mAh
6,000 mAh
Has wireless charging support
Yes
Yes
Has fast charging support
Yes
Yes

Miscellaneous

Feature
OnePlus 15
Xiaomi 17 Ultra
Release date
October 28, 2025
March 10, 2026
SAR (Head)
N/A
N/A
SAR (Body)
N/A
N/A
Dust & Water resistance
IP68/IP69K
IP69
Operating system
OxygenOS 16
Android 16

Security

Feature
OnePlus 15
Xiaomi 17 Ultra
Has a fingerprint scanner
Yes
Yes
Has an advanced face scanner
N/A
N/A

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

LET'S
COMPARE

Making informed decisions easier by providing comprehensive comparisons across various categories.

Quick Links

  • Home
  • FAQ
  • About

Legal

  • Privacy Policy
  • Terms & Conditions
  • Cookie Policy

Contact

[email protected]

© 2026Let's Compare. All rights reserved.

Related comparisons

  • OnePlus 15 vs Honor Magic V6
  • OnePlus 15 vs Vivo X300 Pro
  • OnePlus 15 vs OnePlus 15T
  • OnePlus 15 vs Oppo Find X9 Pro
  • OnePlus 15 vs Xiaomi 14 Ultra
  • OnePlus 15 vs Apple iPhone 17 Pro
  • OnePlus 15 vs Apple iPhone 17 Pro Max
  • OnePlus 15 vs Apple iPhone 16 Pro
  • All smartphones comparisons