SAR — Cellular-Only vs Simultaneous (Wi-Fi + Cellular)
Compare compliance results for your exact phone. Use the brand → model dropdown to load FCC SAR data and see how values change when a device is tested with only the cellular uplink active (\"Cellular‑Only\") versus simultaneous transmission (\"Wi‑Fi + Cellular\"). The tool presents head, body, and hotspot positions side‑by‑side and computes the percent difference so you can quantify how multi‑radio operation can raise reported SAR in those test scenarios.
What this shows: a compliance‑metric comparison between single‑transmitter and multi‑transmitter test conditions (useful for understanding settings like Wi‑Fi/BT/hotspot during use). Treat SAR as a regulatory metric—helpful for relative changes—not biology.
Open the SAR comparison tool.
📴 Compare two phones side‑by‑side
What it does: Compare two phones side‑by‑side across six test positions — Head, Body, and Hotspot in two radio modes: Cellular‑Only (Wi‑Fi/Bluetooth off) and Simultaneous (cellular + Wi‑Fi/BT). See absolute SAR and the percent change between modes, plus a quick, share‑ready image of the results.
How to use: Use the Phone A and Phone B selectors to choose models, then switch between Cellular‑Only and Simultaneous to compare all six positions. Save or share the generated image when you’re done.
Open the two‑phone SAR comparison
🤌 Kids vs. Adults — SAR by Age (Head/Body)
What it shows: An age‑aware SAR comparison that illustrates how a 5‑year‑old, 10‑year‑old, and adult can absorb different amounts of RF energy under today’s compliance setup.
Why it matters: The legal SAR limit and test phantoms were established for adults; children were not considered in setting the reference body models. This tool makes that gap visible by plotting the maximum SAR for each age group.
How to use: Choose your device, pick Head or Body, then toggle between 5‑year‑old, 10‑year‑old, and Adult to compare the peak values side‑by‑side.
Open the Kids vs. Adults SAR comparison
🧾Full Specs + SAR Ranking
All the essentials in one place. This full specs page lists the iPhone 17 Pro Max’s core hardware and radios (display, cameras, bands, battery, chipset), plus official FCC ID numbers and a complete SAR panel (Head, Body, Hotspot). Each SAR value includes a “check ranking” link so you can see where that number sits among other phones, and a visible SAR rank summary for quick context.
How to use: Scroll to the SAR section to review values and click check ranking beside any metric. Use the FCC ID links if you want to open filings and lab documents for deeper verification. The rest of the page covers all primary spec groups so you can vet the device end‑to‑end.
Open full specs + SAR ranking
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SAR — Shareable GIF (Head/Body)
What it does: Generates a lightweight, looped GIF that summarizes the selected phone’s SAR for a single test region—Head or Body—so you can quickly share the result in posts, chats, or reports. The image reflects compliance test regions used for SAR (specific absorption rate).
How to use: This link opens pre‑loaded for Apple iPhone 17 and the Body region. Switch between Head and Body as needed and select a different model if you want to generate a new GIF. Save/download the GIF and share anywhere static images are preferred.
Open the SAR shareable GIF tool
📢 Phone SAR Image Library — Device Panels & Shareables
What it includes: A model‑specific gallery of real SAR panels that compare Cellular‑Only vs Simultaneous (cellular + Wi‑Fi/BT), age‑aware views for 5‑year‑old, 10‑year‑old, and Adult (Head/Body), and a bottom‑of‑page tool to compare this phone with any other phone and auto‑generate an easy, shareable image.
Why it helps: Sharing actual device numbers—and the gap between adult‑based safety setups and children—makes the topic tangible and easy to discuss.
How to use: Scroll the gallery, switch Head/Body, and toggle age groups. Use the compare tool at the bottom to pick another phone and instantly create a graphic you can long‑press/save and share.
Open the Phone SAR Image Library
👉Compare Phones — Important Specs First (+49 More)
What it does: Start with the most critical specs — including safety‑relevant items — in a fast, side‑by‑side view. This link opens with two popular phones preselected, and you can add or remove devices at any time.
How many you can compare: Up to 4 devices on large screens (desktop/laptop) and up to 2 on small screens (phones). When you’re ready for the full matrix, switch to “Compare 49 more specs” to expand beyond the Important‑First panel.
How to use: Click Add device to search any model, then review the Important‑First column set. Use the button to expand and compare all specs side‑by‑side dynamically for deeper evaluation.
Open the Important‑First phone comparison
RF Safe SAR Checker — FCC ID → SAR Reports (Instant Lookup)
What it does: The fastest way to go from a phone model to its official FCC ID and directly open the FCC’s SAR filings. Pick a device from the dropdown or paste an FCC ID to jump straight to the OET/SAR report set for that model. You can also copy a shareable link for your selection.
Why it matters: Seeing the actual FCC reports (not just marketing claims) lets you verify test setups, peak values, and conditions used for compliance.
Pro tip: In the FCC filings list, the executive summary is usually inside the “SAR Test Report — Test 0” PDF under the Regulatory/Compliance documents.
Open the RF Safe SAR Checker
All Phones — Global SAR Rankings (6 Tests)
What it is: A comprehensive, searchable ranking of 100+ currently active phones across all six SAR test positions — Head, Body, Hotspot in both Cellular‑Only and Simultaneous (cellular + Wi‑Fi/BT) modes.
How to use: Use the search/filter and sorting controls to find a model quickly. Switch tabs to view each test’s leaderboard — each tab shows one test (e.g., Head · Cellular‑Only, Body · Simultaneous, etc.). Review all six tabs for the full picture.
Why it helps: Side‑by‑side rankings make it easy to benchmark devices by the exact compliance position you care about, revealing differences that a single headline number can hide.
Open the All‑Phones SAR Rankings
W/WO Wi‑Fi — Cellular‑Only vs Simultaneous (SAR Comparison)
What it does: Quantifies how much RF you can remove by turning off Wi‑Fi and Bluetooth. Pick your brand and model to see SAR side‑by‑side for Cellular‑Only vs Simultaneous (cellular + Wi‑Fi/BT), with clear percent‑difference indicators for Head, Body, and Hotspot test positions.
Why it matters: Simultaneous radios add duty‑cycle and path‑loss effects that can raise measured SAR. This tool shows the delta so you can make a practical, settings‑level change that reduces exposure in everyday use.
How to use: Select Manufacturer → Model in the dropdowns. Review the bars for the three test regions and note the percent change when Wi‑Fi/BT are enabled versus disabled. Use this to decide when to keep extras off (e.g., at night, in pocket, or when not needed).
Open the W/WO Wi‑Fi SAR Comparison Tool
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QuantaCase™ — Physics‑First EMF Case
What it is: QuantaCase™ is an ultra‑thin, antenna‑aware folio that uses directional shielding between you and the phone. It is free of metal loops, magnets, and steel plates and features a shielded speaker opening for the 5G era—engineering choices that avoid antenna detuning and the transmit‑power increases that can come with it.
Why it matters: Gimmicky “anti‑radiation” designs can obstruct radios and push phones to work harder. QuantaCase™ follows the physics: keep radios efficient, place the shield on the user side, and stay thin near antenna zones. Many models also include RFID‑blocking storage for cards.
How to use: For calls, flip the cover toward your head. For carry, place the shielded cover toward your body. Turn off radios you don’t need (Wi‑Fi/Bluetooth/Hotspot) to cut duty cycle in everyday use.
Learn more about QuantaCase™
The Problem with “99% Protection” Cases — Read This First
Why this matters: Those big “99% blocking” claims almost always come from
lab swatch tests—a flat coupon of material in free space. That number says nothing about how a
finished case on a real phone behaves next to your head or body. In practice, add‑on magnets,
steel plates, and metal loops can detune antennas (poorer match / higher VSWR), reduce
radiation efficiency, distort the pattern in the near‑field, and trigger the phone’s
power‑control to transmit harder—sometimes yielding more exposure, not less.
What to look for instead: Physics‑first design. Keep radios efficient (no magnets/loops/plates),
use directional shielding between you and the phone, stay thin near antenna zones, and judge any
product by in‑device results (with the phone and case tested together), not fabric slogans.
The article below explains the engineering and the consumer pitfalls in plain language.
Read: Why “99% Protection” Case Claims Mislead — and What Actually Works
Kids vs. Adults — See How Phone SAR Changes With Age
Children weren’t considered when today’s SAR limits were set. This tool lets you pick your
phone (brand + model) and visualize the same device’s SAR in three anatomies: a 5‑year‑old, a
10‑year‑old, and an adult. Because younger heads are smaller, closer to the radiator, and have
different tissue properties, a “legal” adult value can map to higher absorbed dose patterns
in children.
Use the Head / Body toggle to switch regions and compare how depth of penetration and peak
hot‑spots shift with age. Then flip to Simultaneous (Wi‑Fi + Cellular) to see how multi‑radio
operation changes the picture versus Cellular‑only.
Open the Child vs Adult SAR visualizer for your phone
Educational illustration of absorbed‑energy patterns; treat SAR as compliance, not biology.