Samsung Galaxy S25 Ultra vs Google Pixel 10a

Compared 2 smartphones : Samsung Galaxy S25 Ultra Manufactured in February, 2025, with display 6.9 with chipsetQualcomm Snapdragon 8 Elite, vs Google Pixel 10a, Manufactured in March, 2026with chipsetGoogle Tensor G4. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy S25 Ultra
  • Larger display: 6.9in
  • Higher pixel density: 498ppi
  • Supports Dolby Atmos
Reasons to choose Google Pixel 10a
  • Lighter design: 183g vs 218g
  • Higher battery capacity: 5100mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.4

Versions

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

Review

Key Specs Samsung Galaxy S25 Ultra and Google Pixel 10a
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

Display

Display quality comparison
Type Dynamic AMOLED POLED
Size 6.9 in 6.3 in
Resolution 1440x3120 pixels 1080x2424 pixels
Aspect ratio 19.5:9 20:9
Pixel density 498 ppi 422 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (60-120 Hz)
Max brightness 2600 nits 3000 nits
HDR support Yes HDR10+ Yes, HDR10+
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 92.4 % 85.3 %
Features - DCI-P3
- Always-On Display
- DC dimming
- DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Samsung Galaxy S25 Ultra
1403 nits
Google Pixel 10a
2907 nits
sRGB gamut97.7 %n/a
PWM (Flicker)240 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 162.8 mm (6.41 in) 153.9 mm (6.06 in)
Width 77.6 mm (3.06 in) 73 mm (2.87 in)
Thickness 8.2 mm (0.32 in) 9 mm (0.35 in)
Weight 218 g (7.69 oz) 183 g (6.46 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Plastic
Frame Metal Metal
Colors - Black
- Silver
- Gray
- Blue
- White
- Black
- Red
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Samsung Galaxy S25 Ultra
92.4 %
Google Pixel 10a
85.3 %

Performance

Testing Samsung Galaxy S25 Ultra and Google Pixel 10a In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Google Tensor G4
Max Frequency 4470 MHz 3100 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
- 4/1.92 (Cortex-A520)
- 3/2.6 (Cortex-A720)
- 1/3.1 (Cortex-X4)
Process TSMC Samsung
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Yes
Graphics Adreno 830 Mali-G715 MP7
GPU Cores 1536 896
GPU Frequency 1100 MHz 940 MHz
FLOPS 3379.2 GFLOPS 1684.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S25 Ultra
3147
Google Pixel 10a
1681
Geekbench 6 (Multi-Core)
Samsung Galaxy S25 Ultra
9750
Google Pixel 10a
4079
Geekbench 6 (Single-Core)31471681
Geekbench 6 (Multi-Core)97504079
Geekbench Compute (GPU)25681n/a
AnTuTu 10
AnTuTu 10
Samsung Galaxy S25 Ultra
2795139
Google Pixel 10a
910245
CPU659871205843
GPU1294167338916
Memory471319213407
UX369782152079
NanoReview Score2795139910245

Memory

RAM
RAM Size - 12 GB
- 16 GB
8 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 4200 MHz
Channels 2 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB
128 GB
Storage TypeUFS 4.0UFS 3.1
Memory CardNoNo

Software

OS Android 15 Android 16
OS Size 30.4 GB n/a
UI Skin One UI 7.0 Stock Android

Battery

Volume 5000 mAh 5100 mAh
Max Charging Power 45 W 30 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging Yes (25 W) Yes (10 W)
Reverse Charging Yes (Wireless) n/a
Fast Charging Yes (72% in 30 min) Yes (52% in 30 min)
Full Charge Time 0:59 h 1:29 h
Battery Life Test
Battery Life
Samsung Galaxy S25 Ultra
31:10
Google Pixel 10a
26:59
Web Browsing11:10 h10:33 h
Video Playback19:32 h23:15 h
Games06:22 h06:06 h
Standby Mode160 h98 h

Main camera

Matrix 200 MP 48 MP
Photo resolution 16320x12240 pixels 8000x6000 pixels
Zoom Optical, 5x Digital
Flash LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 240 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) 240 fps (1080p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 200 MP
Telephoto: 50 MP
Telephoto: 12 MP
Ultra-wide: 50 MP
Standard: 48 MP
Ultra-wide: 13 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix200 MP48 MP
Aperturef/1.7f/1.7
Focal length23 mm25 mm
SensorSamsung ISOCELL S5KHP2Samsung GN8
Sensor size1/1.31/2 (0.5)
Pixel size0.6 μm0.8 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix50 MPn/a
Aperturef/3.4n/a
Focal length111 mmn/a
SensorSony IMX854n/a
Sensor size1/2.52n/a
Pixel size0.7 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MP13 MP
Aperturef/1.9f/2.2
Focal length13 mm16 mm
SensorSamsung ISOCELL S5KJN3Sony IMX712
Sensor size1/2.51/3.06 (0.33)
Pixel size0.7 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy S25 Ultra
144
Google Pixel 10a
n/a
Video quality
Samsung Galaxy S25 Ultra
143
Google Pixel 10a
n/a
Overall camera score
Samsung Galaxy S25 Ultra
146
Google Pixel 10a
n/a
Bokeh70n/a
Preview81n/a
Zoom149n/a

Front camera

Matrix 12 MP 13 MP
Photo resolution 4000x3000 pixels 4032x3024 pixels
Aperture f/2.2 f/2.2
Focal length 26 mm 20 mm
Sensor Samsung S5K3LU CMOS
Sensor size 1/3.2 1/3.1 (0.32)
Pixel size 1.12 μm 1.12 μm
Autofocus Phase autofocus (Dual Pixel) No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) 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 6E (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 6.0
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 DP 1.2 Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- GPS
- GLONASS
- Galileo
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*11
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900GSM/EDGE: Quad-band (850, 900, 1800, 1900 MHz)
3G BandsUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)UMTS/HSPA+/HSDPA 1, 2, 4, 5, 8
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B17/B20/B25/B26/B28/B29/B30/B38/B41/B48/B66/B71)
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy S25 Ultra
93 dB
Google Pixel 10a
n/a

Other

Class Flagship Mid-range
Announced January, 2025 yr February, 2026 yr
Release Date February, 2025 yr March, 2026 yr
Launch Price ($) 1299 n/a
MSRP ($) n/a 499
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 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.

Results

After analyzing the data, we consider Samsung Galaxy S25 Ultra the clear winner in this comparison.

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