Home > Smartphone comparison > 15 Ultra vs iPhone 15 – which one to choose?

Xiaomi 15 Ultra vs Apple iPhone 15

90 out of 100
Xiaomi 15 Ultra
VS
74 out of 100
Apple iPhone 15
Xiaomi 15 Ultra
Apple iPhone 15

Here we compared two flagship smartphones: the 6.73-inch Xiaomi 15 Ultra (with Qualcomm Snapdragon 8 Elite) that was released on February 27, 2025, against the Apple iPhone 15, which is powered by Apple A16 Bionic and came out 1 year and 6 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory
  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi 15 Ultra
  • The rear camera has a 4.3x optical zoom
  • Higher display refresh rate – 120 Hz
  • Comes with 2061 mAh larger battery capacity: 5410 vs 3349 mAh
  • 81% better performance in AnTuTu Benchmark (3030K versus 1672K)
  • Has a 0.63 inch larger screen size
  • Has 2x more RAM: 12GB versus 6GB
  • Shows 18% longer battery life (30:03 vs 25:31 hours)
  • Better camera quality (According to DxOMark rating)
  • Supports higher wattage charging (90W versus 20W)
  • Newer Bluetooth version (v6.0)
  • Slow-motion recording at 1920FPS
  • Fingerprint scanner
  • Compatible with Wi-Fi 7 wireless networks
Reasons to consider the Apple iPhone 15
  • Weighs 55 grams less

Review

Evaluation of Xiaomi 15 Ultra and Apple iPhone 15 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
DeviceFacts Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate DeviceFacts Score
📱 Primary usage:

Value for money (Beta)

To get an accurate value-for-money index, update the default prices with actual prices from your country’s retailers (for the selected memory configs) and press the "Calculate" button.
Currency
12 / 256 GB
VS
6 / 128 GB
18.8
(Bad)
Value Index
86.3
(Very good)

Tests and specifications

Comparison table of technical specifications and tests
Phone:
15 Ultra
vs
iPhone 15

Display

Type AMOLED OLED
Size 6.73 inches 6.1 inches
Resolution 1440 x 3200 pixels 1179 x 2556 pixels
Aspect ratio 20:9 19.5:9
PPI 522 ppi 460 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max rated brightness 1600 nits 2000 nits
Max rated brightness in HDR 3200 nits 1600 nits
HDR support Yes, Dolby Vision Yes, Dolby Vision
Touch sampling rate 300 Hz -
Screen protection Xiaomi Shield Glass 2.0 -
Screen-to-body ratio 90% 86.4%
Display features - DCI-P3
- Always-On Display
- DC Dimming		 - DCI-P3
Display tests
RGB color space 99.7% 99.6%
PWM 120 Hz 306 Hz
Response time 1 ms 2 ms
Contrast ∞ Infinity ∞ Infinity
Screen space comparison
15 Ultra
6.73″ (20:9 ratio) = 16.9 in2
iPhone 15
6.1″ (19.5:9 ratio) = 14.2 in2
~19% more screen space
Peak brightness test (auto)
15 Ultra
1588 nits
iPhone 15 +3%
1640 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 161.3 mm (6.35 inches) 147.6 mm (5.81 inches)
Width 75.3 mm (2.96 inches) 71.6 mm (2.82 inches)
Thickness 9.35 mm (0.37 inches) 7.8 mm (0.31 inches)
Weight 226 g (7.97 oz) 171 g (6.03 oz)
Waterproof IP68 IP68
Advanced cooling Vapor chamber -
Rear material Glass Glass
Frame material Metal Metal
Colors White, Black, Silver, Green Black, Blue, Green, Pink, Yellow
Fingerprint scanner Yes, in-display No
Repairability Average (2.61/5) Average (2.96/5)
Drop resistance Good (C) · 90 drops Good (C) · 90 drops
Screen-to-body ratio
15 Ultra +4%
90%
iPhone 15
86.4%

Performance

Chipset specifications of Xiaomi 15 Ultra and Apple iPhone 15
SoC
Chipset Qualcomm Snapdragon 8 Elite Apple A16 Bionic
Max clock 4320 MHz 3460 MHz
CPU cores 8 (2 + 6) 6 (2 + 4)
Architecture - 6 cores at 3.53 GHz: Oryon (Phoenix M)
- 2 cores at 4.32 GHz: Oryon (Phoenix L)		 - 4 cores at 2.02 GHz: Sawtooth
- 2 cores at 3.46 GHz: Everest
L3 cache 8 MB -
Manufacturing TSMC TSMC
Lithography process 3 nanometers 4 nanometers
Neural processor (NPU) Hexagon Apple Neural Engine
GPU
Graphics Adreno 830 5 core Apple GPU
GPU shading units 1536 640
GPU clock 1100 MHz 1398 MHz
FLOPS ~3379.2 GFLOPS ~1789.4 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi 15 Ultra and Apple iPhone 15
Geekbench 6 (Single-Core)
15 Ultra +19%
3106
iPhone 15
2612
Geekbench 6 (Multi-Core)
15 Ultra +45%
9710
iPhone 15
6705
Compute Score (GPU)
15 Ultra +7%
24339
iPhone 15
22764
Compute Score (GPU) 24339 22764
Single-core score 3106 2612
Multi-core score 9710 6705
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
15 Ultra +81%
3030376
iPhone 15
1672293
CPU 912791 462812
GPU 1097348 453603
Memory 440343 222511
UX 579894 533367
Total score 3030376 1672293
Samples [12 tests] [9 tests]
3DMark Steel Nomad Light
15 Ultra
2151
iPhone 15
n/a
Stability 76% -
Graphics test 16 FPS -
Graphics score 2151 -
3DMark Solar Bay
15 Ultra +147%
9815
iPhone 15
3979
Stability - 74%
Graphics test 37 FPS 15 FPS
Section 1 42 FPS 20 FPS
Section 2 38 FPS 15 FPS
Section 3 32 FPS 11 FPS
Graphics score 9815 3979
3DMark Wild Life Extreme
15 Ultra +96%
5626
iPhone 15
2868
Stability 85% -
Graphics test 33 FPS 17 FPS
Graphics score 5626 2868
Sources: 3DMark [5], [6]
PCMark 3.0
15 Ultra
18823
iPhone 15
n/a
Web score 19993 -
Video editing 8213 -
Photo editing 36597 -
Data manipulation 17882 -
Writing score 22481 -
AnTuTu 11 Ranking List (#111th place)
Submit your benchmark results

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi 15 Ultra
DateBenchmarkResult
📘 2026-09-27 (dmxsan)AnTuTu 123059557
📘 2026-07-07 (average f-4 enjoyer)AnTuTu 112993761
📘 2026-06-28 (Mansur)Battery lifeSOT 12:59 / 16:48
📘 2026-02-22 (XX5mipiXX)AnTuTu 113108699
📘 2026-01-27 -> MiEmirrGeekbench 6 CPU3127 / 9465
Add View all (21)
Apple iPhone 15
DateBenchmarkResult
📘 2026-10-14 (Iphone)AnTuTu 111585568
📘 2026-10-09 (Gurudev)AnTuTu 111226584
📘 2026-09-19 (Bear lover)AnTuTu 111714105
📘 2026-09-14 (ZUSEPRO)AnTuTu 111603687
📘 2026-08-15 (Julian Ludwig)Geekbench 6 GPU24336
Add View all (27)

Memory

RAM
RAM size 12 GB 6 GB
Memory type LPDDR5X LPDDR5
Memory clock 5300 MHz 3200 MHz
Channels 4 4
Storage
Storage size 256 GB 128 GB
Storage type UFS 4.1 NVMe
Memory card No No

Software

Operating system Android 15 (Can be upgraded to Android 16) iOS 17 (Can be upgraded to iOS 27)
ROM HyperOS 3.0 -
OS size 23.9 GB 18 GB
OS updates 4 years 7 years
Security updates 7 years 7 years

Battery

Capacity 5410 mAh 3349 mAh
Max charge power 90 W 20 W
Battery type Silicon-Carbon (Si/C) Li-Ion
Replaceable No No
Wireless charging Yes (80 W) Yes (7.5 W)
Reverse charging Yes, (wireless) Yes
Bypass charging No No
Fast charging Yes (72% in 30 min) Yes (58% in 30 min)
Full charging time 0:51 hr 1:50 hr
Battery cycles 1000 cycles 1000 cycles
Battery life tests
Web browsing 12:19 hr 10:47 hr
Watching video 18:43 hr 16:55 hr
Gaming 06:45 hr 05:36 hr
Standby 141 hr 112 hr
General battery life
15 Ultra +18%
30:03 hr
iPhone 15
25:31 hr
Add your battery life

Main camera

Matrix 50 megapixels 48 megapixels
Image resolution 8192 x 6144 8064 x 6048
Zoom Optical, 4.3x Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 30FPS No
4K video recording Up to 120FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 1920 FPS (1080p) 240 FPS (1080p)
Angle of widest lens 115° 120°
Lenses 1) Standard: 50 MP
2) Telephoto: 200 MP
3) Telephoto: 50 MP
4) Ultrawide: 50 MP
5) Depth
1) Standard: 48 MP
2) Ultrawide: 12 MP
Camera features - Bokeh mode
- Pro mode
- RAW support		 - Bokeh mode
- Pro mode
Standard lens
Image resolution 50 MP 48 MP
Aperture f/1.63 f/1.6
Focal length 23 mm 26 mm
Sensor Sony LYT-900 -
Sensor size 1/1.0" (≈ 1 inch) 1/1.5" (≈ 0.67 inch)
Pixel size 1.6 micron 1 micron
Autofocus Laser autofocus Phase autofocus (Dual Pixel)
Stabilization Optical Optical
Telephoto lens
Image resolution 200 MP -
Aperture f/2.6 -
Focal length 100 mm -
Sensor Samsung ISOCELL S5KHP9 -
Sensor size 1/1.4" (≈ 0.71 inch) -
Pixel size 0.56 micron -
Stabilization Optical -
Ultra-wide lens
Image resolution 50 MP 12 MP
Aperture f/2.2 f/2.4
Focal length 14 mm 13 mm
Sensor Samsung S5KJN5 Sony IMX633
Sensor size 1/2.76" (≈ 0.36 inch) 1/2.55" (≈ 0.39 inch)
Pixel size 0.64 micron 1.4 micron
Stabilization Digital Digital

DxOMark main camera tests

Photo quality
15 Ultra +14%
167
iPhone 15
147
Video quality
15 Ultra
143
iPhone 15 +7%
153
Generic main camera score
15 Ultra +10%
159
iPhone 15
145
Bokeh 170 80
Preview 89 84
Zoom 166 114
Samples Photo samples of Xiaomi 15 Ultra from DxOMark Photo samples of Apple iPhone 15 from DxOMark

Selfie camera

Megapixels 32 megapixels 12 megapixels
Image resolution 6528 x 4896 4032 x 3024
Aperture f/2.0 f/1.9
Focal length 22 mm 23 mm
Sensor Omnivision OV32B Sony IMX714
Sensor size 1/3.14" (≈ 0.32 inch) 1/3.6" (≈ 0.28 inch)
Pixel size 0.7 micron 1.12 micron
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No Yes

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6 (802.11 b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 6.0 5.3
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort Yes Yes
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Yes Yes
Infrared port Yes No
Network
Number of SIM* 2 -
Type of SIM card Nano eSIM
Multi SIM mode Standby -
eSIM support* Yes Yes
Hybrid slot No No
LTE Cat* - 18
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max loudness
15 Ultra +13%
92.1 dB
iPhone 15
81.6 dB

Other

Category Flagship Flagship
Announced February 2025 September 2023
Release date February 2025 September 2023
Launch price (MSRP) $1099 $799
Successor - Xiaomi 17 Ultra - Apple iPhone 17
SAR (head) - 0.98 W/kg
SAR (body) - 0.98 W/kg
Sensors - Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Face recognition sensor
Bundled charger Yes, 90 W Not included
Further details
Notes on 15 Ultra:
    - The Chinese version of the Xiaomi 15 Ultra has a 6000 mAh battery, while the international model comes with 5410 mAh, leading to a noticeable difference in battery life.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Xiaomi 15 Ultra is definitely a better buy.

Cast your vote

So, which phone would you choose?
6 (50%)
6 (50%)
Total votes: 12

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