Shareable phone radiation visuals
Samsung Galaxy S21 SAR images
Explore the main SAR snapshot, animated Head and Body views, and child-versus-adult panels—without loading the massive image-to-image comparison database.
SAR level summary
FCC ID A3LSMG991USamsung Galaxy S21 SAR Level Summary
The cellular transmission SAR values for the Samsung Galaxy S21 (FCC ID A3LSMG991U) are 0.74 W/kg at the head and 1.08 W/kg when worn on the body. The hotspot/AirPlay SAR level is 1.11 W/kg. Simultaneous transmission SAR values (cellular + Wi-Fi) include: 1.45 W/kg at the head, 1.54 W/kg on the body, and 1.58 W/kg when used as a hotspot.
| Test position | Cellular only | Difference | Wi-Fi + cellular |
|---|---|---|---|
| Head | 0.74 W/kg | 49% lower | 1.45 W/kg |
| Body | 1.08 W/kg | 29.9% lower | 1.54 W/kg |
| Hotspot | 1.11 W/kg | 29.7% lower | 1.58 W/kg |
Difference is calculated relative to simultaneous transmission: (1 − cellular-only ÷ simultaneous) × 100. Values are regulatory SAR measurements, not individualized exposure predictions.
Main SAR panel
Cellular-only vs Cellular + Wi-Fi
Complete Head and Body SAR snapshot · Cellular-only and simultaneous transmission
Animated SAR
True two-frame animation
Toggle between animated Head and Body views. Click an animation to open it directly.
Head & Body child-versus-adult panels
5-year-old · 10-year-old · Adult
Head and Body panels show cellular-only and simultaneous Wi-Fi + cellular views.
Related phones
SamsungSAR is a regulatory compliance metric, not an individualized health prediction. Position, distance, active radios, network conditions, anatomy, and usage pattern affect exposure.