Home > Smartphone comparison > Redmi K90 Max vs X300 FE – which one to choose?

Xiaomi Redmi K90 Max vs Vivo X300 FE

88 out of 100
Xiaomi Redmi K90 Max
VS
86 out of 100
Vivo X300 FE
Xiaomi Redmi K90 Max
Vivo X300 FE

Here we compared two flagship smartphones: the 6.83-inch Xiaomi Redmi K90 Max (with MediaTek Dimensity 9500) that was released on April 21, 2026, against the Vivo X300 FE, which is powered by Qualcomm Snapdragon 8 Gen 5 and came out 2 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 Redmi K90 Max
  • Has a 0.52 inch larger screen size
  • Comes with 2050 mAh larger battery capacity: 8550 vs 6500 mAh
  • Higher display refresh rate – 165 Hz
  • 31% better performance in AnTuTu Benchmark (3760K versus 2869K)
  • Supports higher wattage charging (100W versus 90W)
  • 19% faster in single-core GeekBench 6 test: 3352 and 2818 points
Reasons to consider the Vivo X300 FE
  • The rear camera has a 3x optical zoom
  • Handles wireless charging up to 40W
  • Newer Bluetooth version (v6.0)
  • Weighs 37 grams less
  • Better grip in hands – the body is 6.14 mm narrower
  • The front-facing camera can record video at 4K
  • Ready for eSIM technology

Review

Evaluation of Xiaomi Redmi K90 Max and Vivo X300 FE 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
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Value for money (Beta)

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Currency
12 / 256 GB
VS
12 / 256 GB
88.1
(Very good)
Value Index
75.3
(Good)

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Redmi K90 Max
vs
X300 FE

Display

Type AMOLED AMOLED
Size 6.83 inches 6.31 inches
Resolution 1280 x 2772 pixels 1260 x 2800 pixels
Aspect ratio 19.5:9 19.5:9
PPI 447 ppi 461 ppi
Refresh rate 165 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max rated brightness - 1800 nits
Max rated brightness in HDR 3500 nits 5000 nits
HDR support Yes, Dolby Vision Yes, HDR10+
Touch sampling rate 480 Hz 300 Hz
Screen protection Dragon Crystal Glass Tempered glass
Screen-to-body ratio 90.2% 90.3%
Display features - DCI-P3
- Always-On Display
- DC Dimming		 - DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space - 99.8%
PWM - 360 Hz
Response time - 1 ms
Contrast - ∞ Infinity
Screen space comparison
Redmi K90 Max
6.83″ (19.5:9 ratio) = 17.7 in2
X300 FE
6.31″ (19.5:9 ratio) = 15.1 in2
~17% more screen space
Peak brightness test (auto)
Redmi K90 Max
n/a
X300 FE
1070 nits
Sources: NotebookCheck [3]

Design and build

Height 162.9 mm (6.41 inches) 150.83 mm (5.94 inches)
Width 77.9 mm (3.07 inches) 71.76 mm (2.83 inches)
Thickness 8.2 mm (0.32 inches) 7.99 mm (0.31 inches)
Weight 227 g (8.01 oz) 190 g (6.7 oz)
Waterproof IP69 IP69
Advanced cooling Active fan Vapor chamber
Rear material Plastic Glass
Frame material Metal Metal
Colors Black, Silver, Blue White, Black, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
Redmi K90 Max
90.2%
X300 FE
90.3%

Performance

Chipset specifications of Xiaomi Redmi K90 Max and Vivo X300 FE
SoC
Chipset MediaTek Dimensity 9500 Qualcomm Snapdragon 8 Gen 5
Max clock 4210 MHz 3800 MHz
CPU cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4 cores at 2.7 GHz: C1-Pro
- 3 cores at 3.5 GHz: C1-Premium
- 1 core at 4.21 GHz: C1-Ultra		 - 6 cores at 3.32 GHz: Oryon Performance
- 2 cores at 3.8 GHz: Oryon Prime
L3 cache 16 MB 6 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 3 nanometers
Neural processor (NPU) MediaTek NPU 990 Hexagon
GPU
Graphics Mali-G1 Ultra MP12 Adreno 829
GPU shading units 1536 1024
GPU clock 1716 MHz 1225 MHz
FLOPS ~5271.5 GFLOPS ~2508.8 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Redmi K90 Max and Vivo X300 FE
Geekbench 6 (Single-Core)
Redmi K90 Max +19%
3352
X300 FE
2818
Geekbench 6 (Multi-Core)
Redmi K90 Max +15%
10402
X300 FE
9052
Compute Score (GPU)
Redmi K90 Max +50%
25045
X300 FE
16659
Compute Score (GPU) 25045 16659
Single-core score 3352 2818
Multi-core score 10402 9052
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
Redmi K90 Max +31%
3760662
X300 FE
2869139
CPU 1048345 861821
GPU 1432351 1005345
Memory 476680 381541
UX 803286 620432
Total score 3760662 2869139
Samples [3 tests] Less than 3
AnTuTu 11 Ranking List (41st and 129th place)
Submit your benchmark results

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Redmi K90 Max
DateBenchmarkResult
📘 2026-07-25 (ALDRINSSS)AnTuTu 113760662
📘 2026-07-16 (Крот)AnTuTu 113790255
📘 2026-07-08 (Zain🇲🇾)AnTuTu 113752181
Add View all (3)
Vivo X300 FE
DateBenchmarkResult
📘 2026-09-20 (Omar)AnTuTu 123231104
Add View all (1)

Memory

RAM
RAM size 12 GB 12 GB
Memory type LPDDR5X LPDDR5X
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.1 UFS 4.1
Memory card No No

Software

Operating system Android 16 Android 16
ROM HyperOS 3 OriginOS 6
OS size - 27 GB
OS updates - 5 years
Security updates - 7 years

Battery

Capacity 8550 mAh 6500 mAh
Max charge power 100 W 90 W
Battery type Silicon-Carbon (Si/C) Silicon-Carbon (Si/C)
Replaceable No No
Wireless charging No Yes (40 W)
Reverse charging Yes Yes
Fast charging Yes Yes (48% in 30 min)
Full charging time - 0:58 hr
Add your battery life

Main camera

Matrix 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8192 x 6144
Zoom Digital Optical, 3x
Flash Dual LED LED
Stabilization Optical Optical
8K video recording Up to 30FPS No
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (1080p) 960 FPS (1080p)
Angle of widest lens - 110°
Lenses 1) Standard: 50 MP
2) Ultrawide: 8 MP
1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 8 MP
Camera features - Bokeh mode
- Pro mode		 - Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 50 MP 50 MP
Aperture f/1.7 f/1.6
Focal length 24 mm 23 mm
Sensor Omnivision OV50 Sony IMX921
Sensor size 1/1.55" (≈ 0.65 inch) 1/1.56" (≈ 0.64 inch)
Pixel size 1 micron 1 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Optical Optical
Telephoto lens
Image resolution - 50 MP
Aperture - f/2.6
Focal length - 70 mm
Sensor - Sony IMX882
Sensor size - 1/1.95" (≈ 0.51 inch)
Pixel size - 0.8 micron
Stabilization - Optical
Ultra-wide lens
Image resolution 8 MP 8 MP
Aperture f/2.2 f/2.2
Focal length 15 mm 15 mm
Sensor size 1/4.0" (≈ 0.25 inch) 1/4.0" (≈ 0.25 inch)
Pixel size 1.14 micron 1.12 micron
Stabilization Digital Digital

Selfie camera

Megapixels 20 megapixels 50 megapixels
Image resolution 5184 x 3888 8192 x 6144
Aperture f/2.2 f/2.0
Focal length - 21 mm
Sensor - Samsung S5KJN1
Sensor size - 1/2.76" (≈ 0.36 inch)
Pixel size - 0.64 micron
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 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 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort No No
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Yes Yes
Infrared port Yes Yes
Network
Number of SIM* 2 2
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 Yes
Speakers test
Max loudness
Redmi K90 Max
n/a
X300 FE
79.9 dB

Other

Category Flagship Flagship
Announced April 2026 March 2026
Release date April 2026 March 2026
Launch price (MSRP) $599 $649
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 100 W Yes, 90 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the performance, gaming, battery life, software, and sound are more important to you, then choose the Xiaomi Redmi K90 Max. But if the camera, connectivity, and design are more of a priority – go for the Vivo X300 FE.

Cast your vote

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