Samsung Galaxy S26 vs S26+ vs S26 Ultra (2026): which one actually fits your daily use?
Resources
Phone Comparisons
All three Galaxy S26 models feel like “real” flagships on software and longevity. Your decision comes down to what you’ll notice every day: pocketability (S26), a sharper big-screen sweet spot with faster charging (S26+), or the Ultra’s camera reach and stylus—at a clear cost in size, weight, and money.
Mobile phone MIMO antenna array miniaturization-based low SAR research in the combined EMF.
Research
RF Safe Research Library
Jan 1, 2026
This engineering/simulation study evaluates tissue SAR from a smartphone operating under single-frequency versus combined (simultaneous 4G and 5G) RF exposure scenarios using multi-pose human models. It reports that peak SAR in various tissues under multi-frequency exposure was 1.02 to 15.85 times higher than under…
Associations between Individual and Geospatial Characteristics and Power of 4G Signals Received by Mobile Phones
Research
RF Safe Research Library
Jan 1, 2025
This exposure assessment study analyzed smartphone-logged 4G LTE RSSI and GPS data from adults in France to identify determinants of downlink signal strength. RSSI varied with geospatial factors (distance to antennas, antenna density, urbanicity) and time of day, and was also influenced by technical smartphone…
Simultaneous 4G and 5G EMF Exposure and Field Uniformity in a Reverberation Chamber for Animal Studies
Research
RF Safe Research Library
Jan 1, 2025
This engineering study describes the design and validation of a reverberation chamber intended for large-scale animal carcinogenicity research with RF EMF relevant to 4G/5G. E-field uniformity was tested under four loading scenarios, including setups with 80 Sprague-Dawley rats. The chamber achieved better than 1.36…
In-Situ Measurements of Radiofrequency Electromagnetic Fields Measurements Around 5G Macro Base Stations in the UK
Research
RF Safe Research Library
Jan 1, 2025
This exposure assessment performed RF spot measurements in line-of-sight to 56 active 5G macro base stations across 30 publicly accessible UK locations. Power density was measured across 420 MHz–6 GHz under multiple scenarios (background, streaming, downlink speed test, and extrapolated SS-RSRP decoding). Reported…
Assessing EMF Exposure in Greek Urban and Suburban Areas During 5G Deployment: A Focus on 5G EMF Levels and Distance Correlation
Research
RF Safe Research Library
Jan 1, 2025
This exposure assessment reports 400 ground-level electric field measurements in Greek urban and suburban areas during 5G deployment. It finds that 4G contributes most to overall measured EMF exposure, while 5G currently contributes less. The study reports an inverse relationship between 3.5 GHz EMF levels and…
High Radiofrequency Radiation in the Surroundings of 10 Schools in Örebro, Sweden
Research
RF Safe Research Library
Jan 1, 2025
This exposure assessment measured outdoor RF radiation from 4G/5G base stations near 10 schools in Örebro, Sweden (October 2024). The authors report maximum levels of 10,716–68,452 μW/m² and state these are far above EUROPAEM EMF guideline ranges; two locations also showed higher peak readings with a second meter.…
RF-EMF exposure in the transition to 5G: A multi-dimensional measurement campaign in the Peloponnese Region of Greece.
Research
RF Safe Research Library
Jan 1, 2025
This paper reports a year-long, frequency-selective RF-EMF measurement campaign (July 2023–June 2024) in the Peloponnese Region of Greece during the transition to 5G. The authors report that all measured electric field values were well below Greek safety limits, with the maximum ground-level value about 18× lower…
Affective evaluation and exposure perception of everyday mobile phone usage situations.
Research
RF Safe Research Library
Jan 1, 2024
This qualitative exploratory study examined affective reactions and perceived RF-EMF exposure in everyday mobile phone and base-station situations in the context of the 5G rollout in Germany. Participants expressed more negative associations with base stations than with mobile phones, though RF-EMF exposure was only…
In Situ Assessment of Uplink Duty Cycles for 4G and 5G Wireless Communications.
Research
RF Safe Research Library
Jan 1, 2024
This exposure assessment measured in situ smartphone uplink duty cycles for 4G LTE and 5G NR across six voice, video, and data use cases. Measurements were taken at ten positions near a 4G and 5G base-station site in Belgium. Reported duty cycles varied by application, with some use cases showing low-to-moderate duty…
Electromagnetic fields - do they pose a cardiovascular risk?
Research
RF Safe Research Library
Jan 1, 2023
This study assessed short-term autonomic cardiac responses to RF EMF exposure using HRV metrics in 30 healthy young adults. During 2400 MHz (Wi-Fi) exposure applied to the chest for 5 minutes, HF-HRV decreased and the sympathetic-related 0V% index increased compared with 2600 MHz (4G) exposure, while RR intervals did…
Study and Analysis of 4G-5G Spectrum Mobile Signals on Germination Seed and Further Growth
Research
RF Safe Research Library
Dec 15, 2022
This study describes a planned and initial experiment assessing RF radiation from user devices in frequency bands common to 4G/5G communications on Butter Bean seed germination and subsequent growth. The setup considered uplink/downlink radiation patterns and exposure-related factors such as frequency and distance.…
Artificial Neural Network-Based Uplink Power Prediction From Multi-Floor Indoor Measurement Campaigns in 4G Networks.
Research
RF Safe Research Library
Jan 1, 2021
This paper describes multi-floor indoor LTE measurement campaigns aimed at enabling assessment and monitoring of RF-EMF exposure, with emphasis on uplink exposure via mobile phone transmit power. Because uplink transmit power is not directly available from off-the-shelf devices, the authors propose an artificial…
Effect of Electromagnetic Waves from Mobile Phones on Spermatogenesis in the Era of 4G-LTE.
Research
RF Safe Research Library
Jan 1, 2018
This animal experiment assessed whether long-duration 4G-LTE mobile phone electromagnetic field exposure affects spermatogenesis in male rats. After 1 month, the highest exposure condition (3 cm distance, 18 h/day) had reduced spermatid, spermatogonia, total germ cell, and Leydig cell counts compared with sham and…