Which has the bigger battery, the Google Pixel 9 Pro XL or the Samsung Galaxy S25 Ultra?

The Google Pixel 9 Pro XL has the bigger battery: 5,060 mAh against 5,000 mAh. Real battery life also depends on the chip and screen.

Which gets software updates for longer?

The Samsung Galaxy S25 Ultra: its maker promises OS updates until around February 2032, against August 2031 for the Google Pixel 9 Pro XL.

The Google Pixel 9 Pro XL launched at $1,099, against $1,300 for the Samsung Galaxy S25 Ultra (US launch prices; street prices drop over time).

The Google Pixel 9 Pro XL is 1 mm narrower, 0.3 mm thicker and 3 g heavier than the Samsung Galaxy S25 Ultra. Its screen is 0.1" smaller.

Body	Google Pixel 9 Pro XL	Samsung Galaxy S25 Ultra
Size	162.8 × 76.6 × 8.5 mm	162.8 × 77.6 × 8.2 mm
Thickness	8.5 mm	8.2 mm (better)
Weight	221 g	218 g (better)
Frame	polished metal	Titanium
Back	matte glass	—
Water resistance	IP68	IP68
Colours	Porcelain, Rose Quartz, Hazel, Obsidian	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray, Titanium Jadegreen, Titanium Jetblack, Titanium Pinkgold1

Performance and software	Google Pixel 9 Pro XL	Samsung Galaxy S25 Ultra
Chipset	Google Tensor G4	Snapdragon 8 Elite Mobile Platform for Galaxy
CPU	1x 3.1 GHz Cortex-X4 + 3x 2.6 GHz Cortex-A720 + 4x 1.9 GHz Cortex-A5201	2x 4.47 GHz Oryon (Phoenix L) and 6x 3.53 GHz Oryon (Phoenix M)1
Process	—	3 nm1
Ships with	Android 14	One UI 7
OS updates	7 years (to Aug 2031)	7 years (to Feb 2032)
Security updates	7 years (to Aug 2031)	7 years (to Feb 2032)

Cameras	Google Pixel 9 Pro XL	Samsung Galaxy S25 Ultra
Rear	50 MP Main 48 MP Ultrawide 48 MP Telephoto (5× optical)	200 MP Main 50 MP Ultrawide 50 MP Telephoto (5× optical) 10 MP Telephoto (3× optical)
Main camera	50 MP	200 MP (better)
Optical zoom	5×	5×
Front	42 MP	12 MP
Video	8K at 30 FPS	8K at 30 fps

Highlighted: the better value where one is clearly better. Sources for each phone are listed on the Google Pixel 9 Pro XL and Samsung Galaxy S25 Ultra pages.

Is the Google Pixel 9 Pro XL bigger than the Samsung Galaxy S25 Ultra?: The Google Pixel 9 Pro XL is 1 mm narrower, 0.3 mm thicker and 3 g heavier than the Samsung Galaxy S25 Ultra. Its screen is 0.1" smaller.
Which has the bigger battery, the Google Pixel 9 Pro XL or the Samsung Galaxy S25 Ultra?: The Google Pixel 9 Pro XL has the bigger battery: 5,060 mAh against 5,000 mAh. Real battery life also depends on the chip and screen.
Which gets software updates for longer?: The Samsung Galaxy S25 Ultra: its maker promises OS updates until around February 2032, against August 2031 for the Google Pixel 9 Pro XL.
Which was cheaper at launch?: The Google Pixel 9 Pro XL launched at $1,099, against $1,300 for the Samsung Galaxy S25 Ultra (US launch prices; street prices drop over time).