Home Phone comparison Xiaomi Redmi K80 and Samsung Galaxy S25 Ultra - Which is better?

Xiaomi Redmi K80 vs Samsung Galaxy S25 Ultra

86 out 100
Xiaomi Redmi K80
VS
94 out 100
Samsung Galaxy S25 Ultra
Xiaomi Redmi K80
Samsung Galaxy S25 Ultra

Compared 2 smartphones : Xiaomi Redmi K80 Manufactured in November, 2024, with display 6.67 with chipsetQualcomm Snapdragon 8 Gen 3, vs Samsung Galaxy S25 Ultra, Manufactured in February, 2025with chipsetQualcomm Snapdragon 8 Elite. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi K80
  • Higher pixel density: 526ppi
  • Lighter design: 206g vs 218g
  • Higher battery capacity: 6550mAh vs 5000mAh
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy S25 Ultra
  • Larger display: 6.9in
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB		 - 12/256 GB
- 12/512 GB
- 12/1024 GB
- 16/1024 GB

Review

Key Specs Xiaomi Redmi K80 and Samsung Galaxy S25 Ultra
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi Redmi K80
vs
Galaxy S25 Ultra

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.67 in 6.9 in
Resolution 1440x3200 pixels 1440x3120 pixels
Aspect ratio 20:9 19.5:9
Pixel density 526 ppi 498 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (1-120 Hz)
Max brightness 1800 nits 2600 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 480 Hz 240 Hz
Screen-to-body ratio 89.4 % 92.4 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Redmi K80
n/a
Samsung Galaxy S25 Ultra
1403 nits
sRGB gamutn/a97.7 %
PWM (Flicker)n/a240 Hz
Response timen/a1 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Samsung Galaxy S25 Ultra]

Design & Build

Design and ergonomics comparison
Height 160.26 mm (6.31 in) 162.8 mm (6.41 in)
Width 74.95 mm (2.95 in) 77.6 mm (3.06 in)
Thickness 8.12 mm (0.32 in) 8.2 mm (0.32 in)
Weight 206 g (7.27 oz) 218 g (7.69 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel n/a Glass
Frame Metal Metal
Colors - White
- Black
- Green		 - Black
- Silver
- Gray
- Blue
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi Redmi K80
89.4 %
Samsung Galaxy S25 Ultra
92.4 %

Performance

Testing Xiaomi Redmi K80 and Samsung Galaxy S25 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 Qualcomm Snapdragon 8 Elite
Max Frequency 3300 MHz 4470 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (2 + 6)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 750 Adreno 830
GPU Cores 1536 1536
GPU Frequency 903-1000 MHz 1100 MHz
FLOPS 2774 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi K80
2180
Samsung Galaxy S25 Ultra
3147
Geekbench 6 (Multi-Core)
Xiaomi Redmi K80
7102
Samsung Galaxy S25 Ultra
9750
Geekbench 6 (Single-Core)21803147
Geekbench 6 (Multi-Core)71029750
Geekbench Compute (GPU)n/a25681
Sources: Geekbench v6 [Samsung Galaxy S25 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi Redmi K80
2021365
Samsung Galaxy S25 Ultra
2795139
CPU431878659871
GPU8207021294167
Memory351950471319
UX416835369782
NanoReview Score20213652795139
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi K80
14874
Samsung Galaxy S25 Ultra
n/a
Stability73 %n/a
Graphics Test88 fpsn/a
Graphics Score14874n/a
Sources: 3DMark [Xiaomi Redmi K80]
PCMark 3.0
PCMark 3.0
Xiaomi Redmi K80
18047
Samsung Galaxy S25 Ultra
n/a
Writing score21283n/a
Web score17939n/a
Video editing7758n/a
Data manipulation17477n/a
NanoReview Score18047n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 - 12 GB
- 16 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz 5333 MHz
Channels 2 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		- 256 GB
- 512 GB
- 1024 GB
Storage TypeUFS 4.0UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 15
OS Size n/a 30.4 GB
UI Skin HyperOS 2.0 One UI 7.0

Battery

Volume 6550 mAh 5000 mAh
Max Charging Power 90 W 45 W
Battery Type Silicon Carbon (Si/C) Li-ion
Removable No No
Wireless Charging No Yes (25 W)
Reverse Charging n/a Yes (Wireless)
Fast Charging Yes Yes (72% in 30 min)
Full Charge Time n/a 0:59 h
Battery Life Test
Battery Life
Xiaomi Redmi K80
n/a
Samsung Galaxy S25 Ultra
31:10
Web Browsingn/a11:10 h
Video Playbackn/a19:32 h
Gamesn/a06:22 h
Standby Moden/a160 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels 16320x12240 pixels
Zoom Digital Optical, 5x
Flash LED LED
Stabilization Optical Optical
8K Recording Up to 24FPS Yes (Up to 30 fps)
4K Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 240 fps)
Slow Motion 1920 fps (720p) 240 fps (1080p)
Wide-angle lens n/a 120 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP		 Standard: 200 MP
Telephoto: 50 MP
Telephoto: 12 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.6f/1.7
Focal length24 mm23 mm
SensorOmniVision OVX8000Samsung ISOCELL S5KHP2
Sensor size1/1.551/1.3
Pixel size1 μm0.6 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/3.4
Focal lengthn/a111 mm
Sensorn/aSony IMX854
Sensor sizen/a1/2.52
Pixel sizen/a0.7 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/1.9
Focal lengthn/a13 mm
SensorOmnivision OV08D10Samsung ISOCELL S5KJN3
Sensor size1/41/2.5
Pixel size1.12 μm0.7 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Redmi K80
n/a
Samsung Galaxy S25 Ultra
144
Video quality
Xiaomi Redmi K80
n/a
Samsung Galaxy S25 Ultra
143
Overall camera score
Xiaomi Redmi K80
n/a
Samsung Galaxy S25 Ultra
146
Bokehn/a70
Previewn/a81
Zoomn/a149
Sources: DxOMark [Samsung Galaxy S25 Ultra]

Front camera

Matrix 20 MP 12 MP
Photo resolution n/a 4000x3000 pixels
Aperture n/a f/2.2
Focal length n/a 26 mm
Sensor Omnivision OV20B Samsung S5K3LU
Sensor size n/a 1/3.2
Pixel size n/a 1.12 μm
Autofocus n/a Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version 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 n/a 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes DP 1.2
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM B3/B5/B8GSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA B1/B4/B5/B6/B8/B19UMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)
LTE Bands*LTE (B1/B3/B4/B5/B7/B8/B18/B19/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos n/a Yes
Speaker Test
Max Volume
Xiaomi Redmi K80
n/a
Samsung Galaxy S25 Ultra
93 dB

Other

Class Mid-range Flagship
Announced November, 2024 yr January, 2025 yr
Release Date November, 2024 yr February, 2025 yr
Launch Price ($) 429 1299
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 90 W No

Note

Samsung 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.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

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