Samsung Galaxy S25 Ultra vs Google Pixel 8 Pro: SAR comparison

The Google Pixel 8 Pro lists the lower head sar, cellular only (us): 1.12 W/kg vs 1.26 W/kg for the Samsung Galaxy S25 Ultra (11% lower). Reported SAR values in W/kg; lower is shaded green and higher red within each row, for comparison only.

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Side-by-side SAR values

Samsung Galaxy S25 Ultra vs Google Pixel 8 Pro reported SAR and specs
Measurement	Samsung Galaxy S25 Ultra	Google Pixel 8 Pro
Head SAR, cellular only (US)	1.26 W/kg	1.12 W/kg
Body SAR, cellular only (US)	0.78 W/kg	1.02 W/kg
Head SAR, Wi-Fi + cellular (US)	1.59 W/kg	1.59 W/kg
Body SAR, Wi-Fi + cellular (US)	1.40 W/kg	1.59 W/kg
Hotspot SAR, cellular only (US)	1.19 W/kg	0.85 W/kg
Hotspot SAR, Wi-Fi + cellular (US)	1.48 W/kg	1.59 W/kg
Display: Type	Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)	LTPO OLED, 120Hz, HDR10+, 1600 nits (HBM), 2400 nits (peak)
Display: Size	6.9 inches (full rectangle); 6.8 inches accounting for rounded corners	6.7 inches, 108.7 cm2 (~87.4% screen-to-body ratio)
Display: Resolution	1440 x 3120 pixels, 19.5:9 ratio (~505 ppi density)	1344 x 2992 pixels, 20:9 ratio (~489 ppi density)
Display: Protection	Corning Gorilla Armor 2	Corning Gorilla Glass Victus 2
Hardware: Operating System	Android 15, up to 7 major Android upgrades, One UI 7	Android 14
Hardware: Chipset	Snapdragon 8 Elite for Galaxy	Google Tensor G3 (4 nm)
Hardware: CPU	Octa-core (2x4.19 GHz & 6x2.90 GHz)	Nona-core (1x3.0 GHz Cortex-X3 & 4x2.45 GHz Cortex-A715 & 4x2.15 GHz Cortex-A510)
Hardware: GPU	Adreno 830 (1.25 GHz)	Immortalis-G715s MC10
Battery: Type	Li-Ion 5000 mAh, non-removable	Li-Ion 5050 mAh, non-removable
Battery: Charging	45W wired, PD3.0, 65% in 30 min (advertised) 25W wireless (Qi2/PMA) 4.5W reverse wireless	30W wired, PD3.0, PPS, 50% in 30 min (advertised) 23W wireless Reverse wireless
Design: Type	Bar	Bar
Design: Dimensions	162.8 x 77.6 x 8.2 mm (6.41 x 3.06 x 0.32 in)	162.6 x 76.5 x 8.8 mm (6.40 x 3.01 x 0.35 in)
Design: Weight	218 g	213 g (7.51 oz)
Design: Colors	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray; additional colors may vary by market	Obsidian, Porcelain, Bay, Mint

Colors make differences within the same measurement easy to see. They do not label a phone safe or unsafe. US values use 1 g of tissue and the 1.6 W/kg limit; EU values use 10 g and 2 W/kg, so don't mix them. What SAR tells you.

Questions and answers

Which has lower head SAR, the Samsung Galaxy S25 Ultra or the Google Pixel 8 Pro?

The Google Pixel 8 Pro lists the lower head sar, cellular only (us): 1.12 W/kg vs 1.26 W/kg for the Samsung Galaxy S25 Ultra (11% lower). Values are reported maximums from FCC filings as listed in the RF Safe dataset, in W/kg averaged over 1 gram of tissue.

Which has lower body SAR, the Samsung Galaxy S25 Ultra or the Google Pixel 8 Pro?

The Samsung Galaxy S25 Ultra lists the lower body sar, cellular only (us): 0.78 W/kg vs 1.02 W/kg for the Google Pixel 8 Pro (24% lower). Values are reported maximums from FCC filings as listed in the RF Safe dataset, in W/kg averaged over 1 gram of tissue.

Which has lower hotspot SAR (Wi-Fi + cellular), the Samsung Galaxy S25 Ultra or the Google Pixel 8 Pro?

The Samsung Galaxy S25 Ultra lists the lower hotspot sar, wi-fi + cellular (us): 1.48 W/kg vs 1.59 W/kg for the Google Pixel 8 Pro (7% lower). Values are reported maximums from FCC filings as listed in the RF Safe dataset, in W/kg averaged over 1 gram of tissue.

What is the highest reported SAR value for each phone?

Across the six US measurements, the Samsung Galaxy S25 Ultra's highest listed value is 1.59 W/kg and the Google Pixel 8 Pro's is 1.59 W/kg. The FCC limit for the head and body is 1.6 W/kg averaged over 1 gram. Wi-Fi + cellular values are simultaneous-transmission sums and are evaluated differently, so read each row on its own.

Does a lower SAR mean a phone is safer?

No. SAR is a lab compliance measurement taken at maximum power. Everyday exposure depends on signal strength, distance from the body and which radios are active. Use SAR to compare phones, not as a health score.

Where do these numbers come from?

From the RF Safe SAR dataset, compiled from FCC equipment authorization filings (FCC ID A3LSMS938B and A4RG1MNW). Nothing on this page is estimated.

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