Xiaomi 12X vs Samsung Galaxy S26 Ultra

Compared 2 smartphones : Xiaomi 12X Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 870, vs Samsung Galaxy S26 Ultra, Manufactured in March, 2026with chipsetQualcomm Snapdragon 8 Elite Gen 5. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi 12X
  • Lighter design: 176g vs 214g
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy S26 Ultra
  • Larger display: 6.9in
  • Higher pixel density: 500ppi
  • Higher battery capacity: 5000mAh vs 4500mAh
  • Newer Bluetooth version: 6.0 vs 5.1
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB
- 12/256 GB
- 12/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi 12X and Samsung Galaxy S26 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:
vs

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.28 in 6.9 in
Resolution 1080x2400 pixels 1440x3120 pixels
Aspect ratio 20:9 19.5:9
Pixel density 419 ppi 500 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 500 nits 1500 nits
HDR support Yes HDR10+ Yes, HDR10+
Touch Sampling Rate 480 Hz 240 Hz
Screen-to-body ratio 89.3 % 91.4 %
Features - DCI-P3
- Always-On Display
- DC dimming
- DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 12X
924 nits
Samsung Galaxy S26 Ultra
2811 nits
sRGB gamut98.6 %n/a
PWM (Flicker)523 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 152.7 mm (6.01 in) 163.6 mm (6.44 in)
Width 69.9 mm (2.75 in) 78.1 mm (3.07 in)
Thickness 8.16 mm (0.32 in) 7.9 mm (0.31 in)
Weight 176 g (6.21 oz) 214 g (7.55 oz)
Water resistance No IP68
Cooling system n/a Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - Black
- Blue
- Pink
- White
- Black
- Silver
- Blue
- Pink
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 12X
89.3 %
Samsung Galaxy S26 Ultra
91.4 %

Performance

Testing Xiaomi 12X and Samsung Galaxy S26 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 870 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 3200 MHz 4740 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/1.8 (Kryo 585 Silver (Cortex-A55))
- 3/2.42 (Kryo 585 Gold (Cortex-A77))
- 1/3.2 (Kryo 585 Prime (Cortex-A77))
- 6/3.63 (Oryon Gen 3 Performance)
- 2/4.61 (Oryon Gen 3 Prime)
Process TSMC TSMC
Transistor Size 7 nm 3 nm
Neural Processor Hexagon 698 Hexagon
Graphics Adreno 650 Adreno 840
GPU Cores 768 1536
GPU Frequency 670 MHz 1200 MHz
FLOPS 1029.1 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12X
1297
Samsung Galaxy S26 Ultra
3753
Geekbench 6 (Multi-Core)
Xiaomi 12X
3428
Samsung Galaxy S26 Ultra
11259
Geekbench 6 (Single-Core)12973753
Geekbench 6 (Multi-Core)342811259
Geekbench Compute (GPU)n/a28787
AnTuTu 10
AnTuTu 10
Xiaomi 12X
806389
Samsung Galaxy S26 Ultra
3720219
CPU2375081094797
GPU2356931447696
Memory153330425113
UX179858752613
NanoReview Score8063893720219
3DMark Wild Life
3DMark Wild Life
Xiaomi 12X
4251
Samsung Galaxy S26 Ultra
n/a
Max Surface Temp.37.6 °Cn/a
Stability98 %n/a
Graphics Test25 fpsn/a
Graphics Score4251n/a

Memory

RAM
RAM Size - 8 GB
- 12 GB
12 GB
Memory Type LPDDR5 LPDDR5X
Channels 2 4
Storage
Storage Capacity- 128 GB
- 256 GB
256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 11 (Upgradeable to Android 13) Android 16
OS Size 29.3 GB n/a
UI Skin HyperOS 1.0 One UI 8.5

Battery

Volume 4500 mAh 5000 mAh
Max Charging Power 67 W 60 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No Yes (25 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes (78% in 30 min) Yes (84% in 30 min)
Full Charge Time 0:48 h 0:43 h
Battery Life Test
Battery Life
Xiaomi 12X
22:44
Samsung Galaxy S26 Ultra
28:50
Web Browsing09:35 h10:12 h
Video Playback14:39 h21:39 h
Games05:35 h06:42 h
Standby Mode101 h130 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8700x5800 pixels 16320x12240 pixels
Zoom Digital 141
Flash Dual 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 960 fps (720p) 240 fps (1080p)
Wide-angle lens 123 ° 120 °
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP
Standard: 200 MP
Telephoto: 50 MP
Telephoto: 10 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.9f/1.4
Focal length26 mm23 mm
SensorSony IMX766Samsung ISOCELL S5KHP2
Sensor size1/1.561/1.3 (0.77)
Pixel size1 μm0.6 μm
AutofocusPhase autofocus (Dual Pixel)Laser autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.9
Focal lengthn/a111 mm
Sensorn/aSony IMX854
Sensor sizen/a1/2.52 (0.4)
Pixel sizen/a0.7 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix13 MP50 MP
Aperturef/2.4f/1.9
Focal length12 mm13 mm
SensorOmniVision OV13B10Samsung ISOCELL S5KJN3
Sensor size1/3.061/2.5 (0.4)
Pixel size1.12 μm0.7 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12X
n/a
Samsung Galaxy S26 Ultra
160
Video quality
Xiaomi 12X
n/a
Samsung Galaxy S26 Ultra
153
Overall camera score
Xiaomi 12X
n/a
Samsung Galaxy S26 Ultra
157
Bokehn/a165

Front camera

Matrix 32 MP 12 MP
Photo resolution 6528x4896 pixels 4000x3000 pixels
Aperture f/2.4 f/2.2
Focal length 26 mm 23 mm
Sensor OmniVision OV32B40 Samsung ISOCELL S5K3LU
Sensor size 1/3 1/3.2 (0.31)
Pixel size 0.7 μm 1.12 μm
Autofocus No 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 6 (802.11 a/b/g/n/ac/ax) 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 5.1 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Yes
Infrared Port Yes No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *n/aYes
Hybrid SlotNoNo
2G BandsGSM 850 900 1800 1900 MHzGSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA B1/2/4/5/6/8/19UMTS B1(2100), B2(1900), B4(AWS), B5(850), B8(900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B38/B39/B40/B41/B48/B66/B71)
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 12X
90.1 dB
Samsung Galaxy S26 Ultra
n/a

Other

Class Flagship Flagship
Announced December, 2021 yr February, 2026 yr
Release Date December, 2021 yr March, 2026 yr
Launch Price ($) 650 n/a
MSRP ($) n/a 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 67 W No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S26 Ultra the clear winner in this comparison.

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