Google Pixel 8a vs Samsung Galaxy S25 Ultra Specs Comparison

Display

Size
6.1-inch	6.9-inch
Resolution
2400 x 1080 px, 20:9 ratio, 431 PPI	3120 x 1440 px, 19.5:9 ratio, 498 PPI
Technology
OLED	Dynamic AMOLED
Refresh rate
120Hz	120Hz
Screen-to-body
81.28 %	90.30 %
Peak brightness
2000 cd/m2 (nit)	2600 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Armor 2), Ambient light sensor, Proximity sensor

Hardware

System chip
Google Tensor G3 (4 nm)	Qualcomm Snapdragon 8 Elite for Galaxy SM8750-AB (3 nm)
Processor
Nona-core, 1x 3.0GHz Cortex-X3 + 4x 2.45GHz Cortex-A715 + 4x 2.15GHz Cortex-A510	Octa-core, 2x 4.47GHz Oryon V2 Phoenix L + 6x 3.53GHz Oryon V2 Phoenix M, 64-bit
GPU
Immortalis-G715s MC10	Adreno 830
RAM
8GB (LPDDR5X)	12GB (LPDDR5X)
Internal storage
128GB (UFS 3.1), not expandable	256GB (UFS 4.0), not expandable
OS
Android (15, 14)	Android (15), One UI
Device type
Smartphone	Smartphone

Battery

Capacity
4492 mAh	5000 mAh
Type
Li - Polymer, Not user replaceable	Li - Ion, Not user replaceable
Charging
Fast charging, Qi wireless charging	Fast charging, Qi wireless charging, Reverse wireless charging
Max charge speed
Wired: 18.0W Wireless: 7.5W	Wired: 45.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

5h 51min

Browsing

13h 53min

Video

8h 34min

Gaming

7h 16min

Battery Life Estimate

8h 0min

Browsing

20h 49min

Video

8h 54min

Gaming

14h 21min

Find out more details about battery and charging for all phones we have tested on our PhoneArena Battery Score page.

Camera

Rear
Dual camera	Quad camera
Main camera
64 MP (OIS, PDAF) Specifications: Aperture size: F1.9 Focal length: 26 mm Sensor size: 1/1.73" Pixel size: 0.8 μm	200 MP (OIS, Laser and PDAF) Specifications: Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm
Second camera
13 MP (Ultra-wide) Specifications: Aperture size: F2.2 Pixel size: 1.12 μm	50 MP (Telephoto, Periscope, OIS, PDAF) Specifications: Optical zoom: 5.0x Aperture size: F3.4 Focal Length: 111 mm Sensor size: 1/2.52" Pixel size: 0.7 μm
Third camera
	10 MP (Telephoto, OIS, PDAF) Specifications: Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 67 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Fourth camera
	50 MP (Ultra-wide, PDAF) Specifications: Aperture size: F1.9 Pixel size: 0.7 μm
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (60 fps)	7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (120 fps), 1920x1080 (Full HD) (240 fps) Features: HDR, Continuous autofocus, Picture-taking during video recording
Front
13 MP	12 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

PhoneArena Camera Tests

134

Overall

142

Photo

127

Video

158

Overall

165

Photo

150

Video

Find out more details about photo and video scores for all phones we have tested on our PhoneArena Camera Score page.

Design

Dimensions
5.99 x 2.84 x 0.35 inches (152.1 x 72.2 x 8.9 mm)	6.41 x 3.06 x 0.32 inches (162.8 x 77.6 x 8.2 mm) thickness with camera 0.36 inches (9.1 mm)
Weight
6.63 oz(188.0 g)	7.69 oz(218.0 g)
Materials
Back: Plastic Frame: Aluminum	Back: Glass (Corning Gorilla Glass Armor 2) Frame: Titanium
Resistance
Water, Dust; IP67	Water, Dust; IP68
Biometrics
Fingerprint (touch)	Ultrasonic in-screen fingerprint
Features
	Stylus
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Obsidian, Porcelain, Bay, Aloe	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray

Cellular

5G
Bands n1, n2, n3, n5, n7, n8, n20, n28, n48, n66, n71, n77, n78, n260, n261, SA, NSA, Sub-6, mmWave	Bands n1, n2, n5, n7, n25, n28, n41, n66, n71, n77, n78, n257, n258, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 41(2600+)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 48(3600)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM, eSIM	Nano SIM, eSIM

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
	aptX, aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
Noise cancellation	Noise cancellation

Connectivity & Features

Bluetooth
5.3	5.4
Wi-Fi
802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot
USB
Type-C (reversible), USB 3.2, Features: Charging	Type-C (reversible), USB 3.2, Features: Charging, OTG
Hearing aid compatible
	M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Barometer	Accelerometer, Gyroscope, Compass, Barometer
Other
NFC	NFC, Ultra Wideband (UWB)

Regulatory Approval

FCC approval
	Date approved: Nov 26, 2024 FCC ID value: A3LSMS938U
Measured SAR
	Head: 1.26 W/kg Body: 0.64 W/kg Simultaneous Transmission: 1.19 W/kg

Buyers information

MSRP
$ 499 / € 549	$ 1299 / € 1449
In The Box
Phone, USB Type-C cable, SIM ejector tool, Papers	USB-C cable, SIM ejector tool, Paperwork

Availability

Officially announced
May 07, 2024	Jan 22, 2025

Alternative variants

With 256GB internal storage

Internal storage	256GB

With 512GB internal storage

Internal storage	512GB
MSRP	$ 1420

With 1TB internal storage

Internal storage	1024GB
MSRP	$ 1660

International

5G	Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
SIM type	Dual Nano SIM + eSIM

Links

Full specifications
Google Pixel 8a Specs	Samsung Galaxy S25 Ultra Specs
PhoneArena Review
Google Pixel 8a Review	Samsung Galaxy S25 Ultra Review
User Reviews
	Samsung Galaxy S25 Ultra User Reviews