Xiaomi Redmi K90 Pro Max vs Samsung Galaxy S25 Ultra

Here we compared two flagship smartphones: the 6.9-inch Xiaomi Redmi K90 Pro Max (with Qualcomm Snapdragon 8 Elite Gen 5) that was released on October 23, 2025, against the Samsung Galaxy S25 Ultra, which is powered by Qualcomm Snapdragon 8 Elite and came out 9 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

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi K90 Pro Max
  • Comes with 2560 mAh larger battery capacity: 7560 vs 5000 mAh
  • Supports higher wattage charging (100W versus 45W)
  • Slow-motion recording at 960FPS
  • 25% better performance in AnTuTu Benchmark (3897K versus 3128K)
  • Has 2 SIM card slots
  • Faster storage type - UFS 4.1 versus UFS 4.0
  • The phone is 9 months newer
  • 15% faster in single-core GeekBench 6 test: 3687 and 3202 points
  • Has a built-in infrared port
Reasons to consider the Samsung Galaxy S25 Ultra
  • 20% higher pixel density (498 vs 416 PPI)
  • Ready for eSIM technology

Review

Evaluation of Xiaomi Redmi K90 Pro Max and Samsung Galaxy S25 Ultra 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
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate NanoReview 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
12 / 256 GB
98.7
(Very good)
Value Index
38.2
(Mediocre)

Tests and specifications

Comparison table of technical specifications and tests

Display

Type OLED Dynamic AMOLED
Size 6.9 inches 6.9 inches
Resolution 1200 x 2608 pixels 1440 x 3120 pixels
Aspect ratio 19.5:9 19.5:9
PPI 416 ppi 498 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max rated brightness in HDR 3500 nits 2600 nits
HDR support Yes, Dolby Vision Yes, HDR10+
Touch sampling rate 480 Hz 240 Hz
Screen protection Xiaomi Dragon Crystal Glass Corning Gorilla Armor 2
Screen-to-body ratio 91.9% 92.4%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space - 97.7%
PWM - 240 Hz
Response time - 1 ms
Contrast - ∞ Infinity
Peak brightness test (auto)
Sources: NotebookCheck [3]

Design and build

Height 163.33 mm (6.43 inches) 162.8 mm (6.41 inches)
Width 77.82 mm (3.06 inches) 77.6 mm (3.06 inches)
Thickness 7.9 mm (0.31 inches) 8.2 mm (0.32 inches)
Weight 218 g (7.69 oz) 218 g (7.69 oz)
Waterproof IP68 IP68
Advanced cooling Vapor chamber Vapor chamber
Rear material - Glass
Frame material Metal Metal
Colors White, Black, Blue Black, Silver, Gray, Blue
Fingerprint scanner Yes, in-display Yes, in-display
Repairability - Good (3.23/5)
Drop resistance - Excellent (A) · 270 drops
Screen-to-body ratio

Performance

Chipset specifications of Xiaomi Redmi K90 Pro Max and Samsung Galaxy S25 Ultra
SoC
Chipset Qualcomm Snapdragon 8 Elite Gen 5 Qualcomm Snapdragon 8 Elite
Max clock 4600 MHz 4470 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 3.63 GHz: Oryon Gen 3 Performance
- 2 cores at 4.74 GHz: Oryon Gen 3 Prime
- 6 cores at 3.53 GHz: Oryon (Phoenix M)
- 2 cores at 4.32 GHz: Oryon (Phoenix L)
L3 cache 12 MB 8 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 3 nanometers
Neural processor (NPU) Hexagon Hexagon
GPU
Graphics Adreno 840 Adreno 830
GPU shading units 1536 1536
GPU clock 1300 MHz 1100 MHz
FLOPS ~3993.6 GFLOPS ~3379.2 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Redmi K90 Pro Max and Samsung Galaxy S25 Ultra
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
Compute Score (GPU) 27658 26581
Single-core score 3687 3202
Multi-core score 11219 10347
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
3897821
CPU 1131610 987646
GPU 1407372 1190760
Memory 516269 362214
UX 842570 587932
Total score 3897821 3128552
Samples [3 tests] [66 tests]
3DMark Steel Nomad Light
Stability 78% 61%
Graphics test 19 FPS 17 FPS
Graphics score 2613 2272
3DMark Solar Bay
Graphics test 47 FPS 40 FPS
Section 1 54 FPS 50 FPS
Section 2 47 FPS 40 FPS
Section 3 39 FPS 29 FPS
Graphics score 12330 10441
3DMark Wild Life Extreme
Stability - 56%
Graphics test 38 FPS 34 FPS
Graphics score 6490 5827
Sources: 3DMark [5], [6]
PCMark 3.0
Web score 15760 21582
Video editing 8107 8625
Photo editing 35534 34425
Data manipulation 18051 17556
Writing score 23843 26844
AnTuTu 11 Ranking List (36th and 86th place)

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Redmi K90 Pro Max
DateBenchmarkResult
📘 2026-09-20 (Max)AnTuTu 114119955
📘 2026-09-03 (Xioami)Geekbench 6 CPU3713 / 11324
📘 2026-09-03 (DARK)Geekbench 6 CPU3760 / 11149
📘 2026-08-18 (Xiaomi User)Geekbench 6 CPU3685 / 11205
📘 2026-08-17 (WoW !!)Geekbench 6 CPU3676 / 11184
Samsung Galaxy S25 Ultra
DateBenchmarkResult
📘 2026-09-29 (VortexGen)AnTuTu 123414404
📘 2026-09-06 (Trexsotiy)Battery lifeSOT 12:30 / 03:16
📘 2026-09-02 -> Mohamed_136Battery lifeSOT 8:02 / 17:11
📘 2026-08-29 (PaWK)AnTuTu 113034536
📘 2026-08-23 (Apple Slayer)AnTuTu 113254557

Memory

RAM
RAM size 12 GB 12 GB
Memory type LPDDR5X LPDDR5X
Memory clock 5300 MHz 5300 MHz
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.1 UFS 4.0
Memory card No No

Software

Operating system Android 16 Android 15 (Can be upgraded to Android 16)
ROM HyperOS 3 One UI 8.0
OS size - 30.4 GB
OS updates - 7 years
Security updates - 7 years

Battery

Capacity 7560 mAh 5000 mAh
Max charge power 100 W 45 W
Battery type Silicon-Carbon (Si/C) Li-Ion
Replaceable Yes No
Wireless charging Yes (50 W) Yes (25 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Bypass charging Yes Yes
Fast charging Yes Yes (72% in 30 min)
Full charging time - 0:59 hr
Battery cycles - 2000 cycles
Battery life tests
Web browsing - 11:10 hr
Watching video - 19:32 hr
Gaming - 06:22 hr
Standby - 132 hr
General battery life

Main camera

Matrix 50 megapixels 200 megapixels
Image resolution 8192 x 6144 16320 x 12240
Zoom Optical, 5x Optical, 5x
Flash Dual LED LED
Stabilization Optical Optical
8K video recording Up to 30FPS Up to 30FPS
4K video recording Up to 60FPS Up to 120FPS
1080p video recording Up to 60FPS Up to 240FPS
Slow motion 960 FPS (1080p) 240 FPS (1080p)
Angle of widest lens 102° 120°
Lenses 1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 50 MP
1) Standard: 200 MP
2) Telephoto: 50 MP
3) Telephoto: 10 MP
4) Ultrawide: 50 MP
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 50 MP 200 MP
Aperture f/1.7 f/1.7
Focal length 23 mm 23 mm
Sensor Omnivision Light Hunter 950 Samsung ISOCELL S5KHP2
Sensor size 1/1.31" (≈ 0.76 inch) 1/1.3" (≈ 0.77 inch)
Pixel size 1.2 micron 0.6 micron
Autofocus Phase autofocus (Dual Pixel) Laser autofocus
Stabilization Optical Optical
Telephoto lens
Image resolution 50 MP 50 MP
Aperture f/3.0 f/3.4
Focal length 115 mm 111 mm
Sensor - Sony IMX854
Sensor size 1/2.76" (≈ 0.36 inch) 1/2.52" (≈ 0.4 inch)
Pixel size 0.64 micron 0.7 micron
Stabilization Optical Optical
Ultra-wide lens
Image resolution 50 MP 50 MP
Aperture f/2.4 f/1.9
Focal length 18 mm 13 mm
Sensor - Samsung ISOCELL S5KJN3
Sensor size 1/2.88" (≈ 0.35 inch) 1/2.5" (≈ 0.4 inch)
Pixel size 0.61 micron 0.7 micron
Stabilization Digital Digital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh - 165
Preview - 81
Zoom - 137
Samples - Photo samples of Samsung Galaxy S25 Ultra from DxOMark

Selfie camera

Megapixels 32 megapixels 12 megapixels
Image resolution - 4000 x 3000
Aperture f/2.2 f/2.2
Focal length 21 mm 26 mm
Sensor CMOS Samsung S5K3LU
Sensor size 1/3.44" (≈ 0.29 inch) 1/3.2" (≈ 0.31 inch)
Pixel size 0.64 micron 1.12 micron
Autofocus - Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
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 5.4 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
DisplayPort Yes Yes, DP 1.2
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Yes Yes
Infrared port Yes No
Network
Number of SIM* 2 1
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No Yes
Hybrid slot No No
5G support Yes Yes

Sound

Speakers 2.1 Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos - Yes
Speakers test
Max loudness

Other

Category Flagship Flagship
Announced October 2025 January 2025
Release date October 2025 February 2025
Launch price (MSRP) $560 $1299
Successor - - Samsung Galaxy S26 Ultra
SAR (head) - 1.25 W/kg
SAR (body) - 1.42 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 100 W Not included
Further details
Notes on Galaxy S25 Ultra:
    - Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. version has 1.
    - Uses Grade 5 titanium and Corning Gorilla Armor 2 glass on both sides.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the gaming, battery life, and design are more important to you, then choose the Xiaomi Redmi K90 Pro Max. But if the sound is more of a priority – go for the Samsung Galaxy S25 Ultra.

Cast your vote

So, which phone would you choose?
43 (64.2%)
24 (35.8%)
Total votes: 67

User opinions

You can share your opinion or ask a question in the comments below
🌐 Register your profile and become part of NanoReview community!