Samsung Galaxy S24 vs Samsung Galaxy S22: SAR comparison

The Samsung Galaxy S22 lists the lower head sar, cellular only (us): 1.03 W/kg vs 1.23 W/kg for the Samsung Galaxy S24 (16% 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 S24 vs Samsung Galaxy S22 reported SAR and specs
Measurement	Samsung Galaxy S24	Samsung Galaxy S22
Head SAR, cellular only (US)	1.23 W/kg	1.03 W/kg
Body SAR, cellular only (US)	1.14 W/kg	1.15 W/kg
Head SAR, Wi-Fi + cellular (US)	1.57 W/kg	1.55 W/kg
Body SAR, Wi-Fi + cellular (US)	1.58 W/kg	1.57 W/kg
Hotspot SAR, cellular only (US)	3.08 W/kg	1.25 W/kg
Hotspot SAR, Wi-Fi + cellular (US)	3.10 W/kg	1.59 W/kg
Head SAR (EU, 10 g)	n/a	1.21 W/kg
Body SAR (EU, 10 g)	n/a	1.59 W/kg
Display: Type	Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)	Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Display: Size	6.2 inches, 94.4 cm2 (~90.9% screen-to-body ratio)	6.1 inches, 90.1 cm2 (~87.4% screen-to-body ratio)
Display: Resolution	1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~425 ppi density)
Display: Protection	Corning Gorilla Glass Victus 2	Corning Gorilla Glass Victus+
Hardware: Operating System	Android 14, One UI 6.1	Android 12, One UI 4.1
Hardware: Chipset	Qualcomm SM8650-AC Snapdragon 8 Gen 3 (4 nm) - USA/Canada/ChinaExynos 2400 (4 nm) - International	Exynos 2200 (4 nm) - EuropeQualcomm SM8450 Snapdragon 8 Gen 1 (4 nm) - ROW
Hardware: CPU	8-core (1x3.39GHz Cortex-X4 & 3x3.1GHz Cortex-A720 & 2x2.9GHz Cortex-A720 & 2x2.2GHz Cortex-A520)10-core (1x3.2GHz Cortex-X4 & 2x2.9GHz Cortex-A720 & 3x2.6GHz Cortex-A720 & 4x1.95GHz Cortex-A520)	Octa-core (1x2.8 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510) - EuropeOcta-core (1x3.00 GHz Cortex-X2 & 3x2.40 GHz Cortex-A710 & 4x1.70 GHz Cortex-A510) - ROW
Hardware: GPU	Adreno 750 (1 GHz) - USA/Canada/ChinaXclipse 940 - International	Xclipse 920 - EuropeAdreno 730 - ROW
Battery: Type	Li-Ion 4000 mAh, non-removable	Li-Ion 3700 mAh, non-removable
Battery: Charging	25W wired, PD3.0, 50% in 30 min (advertised) 15W wireless (Qi/PMA) 4.5W reverse wireless	Fast charging 25W USB Power Delivery 3.0 Fast Qi/PMA wireless charging 15W Reverse wireless charging 4.5W
Design: Type	Bar	Bar
Design: Dimensions	147 x 70.6 x 7.6 mm (5.79 x 2.78 x 0.30 in)	146 x 70.6 x 7.6 mm (5.75 x 2.78 x 0.30 in)
Design: Weight	167 g or 168 g (5.89 oz)	167 g / 168 g (mmWave) (5.89 oz)
Design: Colors	Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow, Jade Green, Sandstone Orange, Sapphire Blue	Phantom Black, White, Pink Gold, Green, Graphite, Sky Blue, Violet, Cream

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 S24 or the Samsung Galaxy S22?

The Samsung Galaxy S22 lists the lower head sar, cellular only (us): 1.03 W/kg vs 1.23 W/kg for the Samsung Galaxy S24 (16% 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 S24 or the Samsung Galaxy S22?

The Samsung Galaxy S24 lists the lower body sar, cellular only (us): 1.14 W/kg vs 1.15 W/kg for the Samsung Galaxy S22 (1% 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 S24 or the Samsung Galaxy S22?

The Samsung Galaxy S22 lists the lower hotspot sar, wi-fi + cellular (us): 1.59 W/kg vs 3.10 W/kg for the Samsung Galaxy S24 (49% 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 S24's highest listed value is 3.10 W/kg and the Samsung Galaxy S22'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 A3LSMS921U and A3LSMS901U). Nothing on this page is estimated.

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