Google Pixel 9 Pro Xl vs Samsung Galaxy S23 Ultra: SAR comparison

The Google Pixel 9 Pro Xl lists the lower head sar, cellular only (us): 0.92 W/kg vs 0.98 W/kg for the Samsung Galaxy S23 Ultra (6% 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

Google Pixel 9 Pro Xl vs Samsung Galaxy S23 Ultra reported SAR and specs
Measurement	Google Pixel 9 Pro Xl	Samsung Galaxy S23 Ultra
Head SAR, cellular only (US)	0.92 W/kg	0.98 W/kg
Body SAR, cellular only (US)	0.99 W/kg	1.10 W/kg
Head SAR, Wi-Fi + cellular (US)	1.59 W/kg	1.59 W/kg
Body SAR, Wi-Fi + cellular (US)	1.59 W/kg	1.59 W/kg
Hotspot SAR, cellular only (US)	0.84 W/kg	1.20 W/kg
Hotspot SAR, Wi-Fi + cellular (US)	1.59 W/kg	1.54 W/kg
Display: Type	LTPO* OLED, 120Hz, HDR10+, 2000 nits (HBM), 3000 nits (peak)	Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak)
Display: Size	6.8 inches, 109.7 cm2 (~88.0% screen-to-body ratio)	6.8 inches, 114.7 cm2 (~89.9% screen-to-body ratio)
Display: Resolution	1344 x 2992 pixels, 20:9 ratio (~486 ppi density)	1440 x 3088 pixels (~500 ppi density)
Display: Protection	Corning Gorilla Glass Victus 2	Corning Gorilla Glass Victus 2
Hardware: Operating System	Android 14, up to 7 major Android upgrades	Android 13, One UI 5.1
Hardware: Chipset	Google Tensor G4 (4 nm)	Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
Hardware: CPU	Octa-core (1x3.1 GHz Cortex-X4 & 3x2.6 GHz Cortex-A720 & 4x1.92 GHz Cortex-A520)	Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
Hardware: GPU	Mali-G715 MC7	Adreno 740
Battery: Type	Li-Ion 5060 mAh, non-removable	Li-Ion 5000 mAh, non-removable
Battery: Charging	37W wired, PD3.0, PPS, 70% in 30 min (advertised) 23W wireless (w/ Pixel Stand) 12W wireless (w/ Qi compatible charger) Reverse wireless	45W wired, PD3.0, 65% in 30 min (advertised) 15W wireless (Qi/PMA) 4.5W reverse wireless
Battery: Battery Test	—	Endurance rating 126h
Design: Type	Bar	Bar
Design: Dimensions	162.8 x 76.6 x 8.5 mm (6.41 x 3.02 x 0.33 in)	163.4 x 78.1 x 8.9 mm (6.43 x 3.07 x 0.35 in)
Design: Weight	221 g (7.80 oz)	234 g (8.25 oz)
Design: Colors	Porcelain, Rose Quartz, Hazel, Obsidian	Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition

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 Google Pixel 9 Pro Xl or the Samsung Galaxy S23 Ultra?

The Google Pixel 9 Pro Xl lists the lower head sar, cellular only (us): 0.92 W/kg vs 0.98 W/kg for the Samsung Galaxy S23 Ultra (6% 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 Google Pixel 9 Pro Xl or the Samsung Galaxy S23 Ultra?

The Google Pixel 9 Pro Xl lists the lower body sar, cellular only (us): 0.99 W/kg vs 1.10 W/kg for the Samsung Galaxy S23 Ultra (10% 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 Google Pixel 9 Pro Xl or the Samsung Galaxy S23 Ultra?

The Samsung Galaxy S23 Ultra lists the lower hotspot sar, wi-fi + cellular (us): 1.54 W/kg vs 1.59 W/kg for the Google Pixel 9 Pro Xl (3% 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 Google Pixel 9 Pro Xl's highest listed value is 1.59 W/kg and the Samsung Galaxy S23 Ultra'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 A4RGZC4K and A3LSMS918B). Nothing on this page is estimated.

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