Home Phone comparison Samsung Galaxy S25 and Xiaomi Redmi K70 Ultra - Which is better?

Samsung Galaxy S25 vs Xiaomi Redmi K70 Ultra

87 out 100
Samsung Galaxy S25
VS
82 out 100
Xiaomi Redmi K70 Ultra
Samsung Galaxy S25
Xiaomi Redmi K70 Ultra

Compared 2 smartphones : Samsung Galaxy S25 Manufactured in February, 2025, with display 6.2 with chipsetQualcomm Snapdragon 8 Elite, vs Xiaomi Redmi K70 Ultra, Manufactured in July, 2024 with chipsetMediaTek Dimensity 9300 Plus. 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 Samsung Galaxy S25
  • Lighter design: 162g vs 211g
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM
Reasons to choose Xiaomi Redmi K70 Ultra
  • Larger display: 6.67in
  • Higher pixel density: 446ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 5500mAh vs 4000mAh
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 12/128 GB
- 12/256 GB
- 12/512 GB		 - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB
- 24/1024 GB

Review

Key Specs Samsung Galaxy S25 and Xiaomi Redmi K70 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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Samsung Galaxy S25
vs
Xiaomi Redmi K70 Ultra

Display

Display quality comparison
Type Dynamic AMOLED OLED
Size 6.2 in 6.67 in
Resolution 1080x2340 pixels 1220x2712 pixels
Aspect ratio 19.5:9 20:9
Pixel density 416 ppi 446 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max brightness 2600 nits 4000 nits
HDR support Yes HDR10+ Yes Dolby Vision
Touch Sampling Rate 240 Hz 480 Hz
Screen-to-body ratio 91.1 % 89.1 %
Features - DCI-P3
- Always-On Display		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy S25
1406 nits
Xiaomi Redmi K70 Ultra
n/a
sRGB gamut97.4 %n/a
PWM (Flicker)240 Hzn/a
Response time2 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy S25]

Design & Build

Design and ergonomics comparison
Height 146.9 mm (5.78 in) 160.4 mm (6.31 in)
Width 70.5 mm (2.78 in) 75.1 mm (2.96 in)
Thickness 7.2 mm (0.28 in) 8.4 mm (0.33 in)
Weight 162 g (5.71 oz) 211 g (7.44 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - Black
- Silver
- Gray
- Blue
- Green
- Pink		 - White
- Black
- Green
- Orange
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Samsung Galaxy S25
91.1 %
Xiaomi Redmi K70 Ultra
89.1 %

Performance

Testing Samsung Galaxy S25 and Xiaomi Redmi K70 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite MediaTek Dimensity 9300 Plus
Max Frequency 4470 MHz 3400 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 4/2 (Cortex-A720)
- 3/2.85 (Cortex-X4)
- 1/3.4 (Cortex-X4)
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon MediaTek APU 790
Graphics Adreno 830 Mali-G720 Immortalis MP12
GPU Cores 1536 1536
GPU Frequency 1100 MHz 1300 MHz
FLOPS 3379.2 GFLOPS 3993.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S25
3075
Xiaomi Redmi K70 Ultra
2224
Geekbench 6 (Multi-Core)
Samsung Galaxy S25
9822
Xiaomi Redmi K70 Ultra
7415
Geekbench 6 (Single-Core)30752224
Geekbench 6 (Multi-Core)98227415
Geekbench Compute (GPU)2626415810
Sources: Geekbench v6 [Samsung Galaxy S25], [Xiaomi Redmi K70 Ultra]
AnTuTu 10
AnTuTu 10
Samsung Galaxy S25
2382973
Xiaomi Redmi K70 Ultra
2149581
CPU580139502823
GPU961299855638
Memory478741428947
UX362794362173
NanoReview Score23829732149581
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S25
n/a
Xiaomi Redmi K70 Ultra
13463
Stabilityn/a70 %
Graphics Testn/a80 fps
Graphics Scoren/a13463
Sources: 3DMark [Xiaomi Redmi K70 Ultra]
PCMark 3.0
PCMark 3.0
Samsung Galaxy S25
n/a
Xiaomi Redmi K70 Ultra
15188
Writing scoren/a17583
Web scoren/a15413
Video editingn/a6546
Data manipulationn/a14781
NanoReview Scoren/a15188

Memory

RAM
RAM Size 12 GB - 12 GB
- 16 GB
- 24 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 4800 MHz
Channels 2 4
Storage
Storage Capacity128 GB- 256 GB
- 512 GB
- 1024 GB
Storage TypeUFS 4.0UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 14
OS Size 30.1 GB n/a
UI Skin One UI 7.0 HyperOS 1.0

Battery

Volume 4000 mAh 5500 mAh
Max Charging Power 25 W 120 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging Yes (15 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (56% in 30 min) Yes (50% in 12 min)
Full Charge Time 1:17 h 0:24 h
Battery Life Test
Battery Life
Samsung Galaxy S25
24:10
Xiaomi Redmi K70 Ultra
n/a
Web Browsing09:09 hn/a
Video Playback17:15 hn/a
Games05:32 hn/a
Standby Mode108 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8160x6120 pixels 8192x6144 pixels
Zoom Optical, 3x Digital
Flash LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) 960 fps (1080p)
Wide-angle lens 120 ° 119 °
Lenses count Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.7
Focal length24 mm23 mm
SensorSamsung ISOCELL S5KGN3Sony IMX906
Sensor size1/1.561/1.56
Pixel size1 μm1 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalOptical
Telephoto
Matrix10 MPn/a
Aperturef/2.4n/a
Focal length67 mmn/a
SensorSamsung ISOCELL S5K3K1n/a
Sensor size1/3.94n/a
Pixel size1 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix12 MP8 MP
Aperturef/2.2f/2.2
Focal length13 mmn/a
SensorSony IMX564Samsung S5KJN1
Sensor size1/2.551/4.0
Pixel size1.4 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 12 MP 20 MP
Photo resolution 4000x3000 pixels n/a
Aperture f/2.2 n/a
Focal length 26 mm n/a
Sensor Samsung S5K3LU Omnivision OV20B
Sensor size 1/3.2 1/2.0
Pixel size 1.12 μm n/a
Autofocus Phase autofocus n/a
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 30 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)
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 n/a
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes DP 1.2 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM850,GSM900,DCS1800,PCS1900n/a
3G BandsUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)n/a
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No No
FM Radio No n/a
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Samsung Galaxy S25
91.7 dB
Xiaomi Redmi K70 Ultra
n/a

Other

Class Flagship Flagship
Announced January, 2025 yr July, 2024 yr
Release Date February, 2025 yr July, 2024 yr
Launch Price ($) n/a 360
MSRP ($) 799 n/a
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes 120 W

Note

Samsung Galaxy S25:

Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. model has 1.

Xiaomi Redmi K70 Ultra:

Also known as Redmi K70 Extreme Edition in China.

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

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