Google Pixel 8a vs Samsung Galaxy S25 Ultra Specs Comparison

Availability

Officially announced
May 07, 2024	Jan 22, 2025
MSRP
$ 499 / € 549	$ 1299 / € 1449

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 (~0.36 inches with camera bump) 162.8 x 77.6 x 8.2 mm (~9.1 mm with camera bump)
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

Display

Size
6.1-inch, 81.28% screen-to-body	6.9-inch, 90.30% screen-to-body
Type
OLED, 120Hz, HDR, 2000 nits	Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
2400x1080px, 20:9 ratio, 431 PPI	3120x1440px, 19.5:9 ratio, 498 PPI
Protection
Corning Gorilla Glass 3	Corning Gorilla Glass Armor 2
Features
HDR support, Scratch-resistant glass, Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass, Ambient light sensor, Proximity sensor

Hardware

System chip
Google Tensor G3 (4 nm)	Snapdragon 8 Elite for Galaxy SM8750-AB (3 nm)
Processor
Nona-core 1x3.0GHz Cortex-X3 4x2.45G​Hz Cortex-A715 4x2.1​5GHz Cortex-A510	Octa-core 2x4.47GHz Oryon V2 PhoenixL 6x3.53GH​z Oryon V2 PhoenixM
GPU
Immortalis-G715s MC10	Adreno 830
Memory
8GB (LPDDR5X)/128GB (UFS 3.1) 8GB/256GB	12GB (LPDDR5X)/256GB (UFS 4.0) 12GB/512GB 12GB/1024GB
Storage expansion
not expandable	not expandable
OS
Android (15, 14)	Android (15), up to 7 OS updates

Battery

Type
4492 mAh, Li - Polymer	5000 mAh, Li - Ion
Charging
Fast charging Qi wireless charging	Fast charging Qi wireless charging, Reverse wireless charging
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

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Quad camera
Main camera
64 MP (OIS, PDAF) Aperture size: F1.9 Focal length: 26 mm Sensor size: 1/1.73" Pixel size: 0.8 μm	200 MP (OIS, Laser and PDAF) Sensor name: Samsung ISOCELL HP2 Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm
Second camera
13 MP (Ultra-wide) Aperture size: F2.2 Pixel size: 1.12 μm	50 MP (Ultra-wide, PDAF) Sensor name: Samsung JN3 Aperture size: F1.9 Pixel size: 0.7 μm
Third camera
	10 MP (Telephoto, OIS, PDAF) Sensor name: Sony IMX754 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 (Telephoto, Periscope, OIS, PDAF) Sensor name: Sony IMX854 Optical zoom: 5.0x Aperture size: F3.4 Focal Length: 111 mm Sensor size: 1/2.52" Pixel size: 0.7 μm
Flash
LED	LED
Video recording
4K UHD (60 fps)	8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps) HDR, Continuous autofocus, Picture-taking during video recording
Front
13 MP	12 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

PhoneArena Camera Tests

134

Overall

142

Photo

127

Video

158

Overall

165

Photo

150

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.3	5.4
WLAN
a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
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
Other
NFC	NFC, Ultra Wideband (UWB)

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
Additional microphone(s)
Noise cancellation

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, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38, 41	Bands 38, 39, 40, 41, 48
3G
Bands 1, 2, 4, 5, 6, 8	Bands 1, 2, 4, 5, 8
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

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

Alternative variants

With 256GB internal storage

Memory	256GB

With 512GB internal storage

Memory	512GB
MSRP	$ 1420

With 1TB internal storage

Memory	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, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32(1500 L-band), 66(AWS-3)
4G (TDD)	Bands 38, 39, 40, 41
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