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The differences that matter.
Compare phone accessories by what they measure, how they record, and what they cannot tell you.
← Phone accessories buying criteria
| Compare capabilities | BlocSock Anti-Radiation Phone Case | EMF Radiation Harmonising Sticker |
|---|---|---|
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| Shielding | One-sided (faces the body), reduces SAR per manufacturer testing | — |
| Material | — | Proprietary zinc and copper alloy matrix (not quartz) |
| SAR reduction (manufacturer) | 96% | — |
| Mechanism (manufacturer claim) | — | Passive field modification -- does not block or attenuate signal |
| Materials | Faux Leather or Faux Suede -- same shielding either way | — |
| Coverage | — | One sticker per device; multi-packs (3/5/12/20) for whole-home use |
| Sizes | 16cm x 8cm, 17cm x 10cm, 19cm x 11cm | — |
| Signal impact | — | None claimed -- device connectivity, battery unaffected |
| Starting price | £34.99 | £35.00 |
| Available from | EMF Protection UK | EMF Protection UK |
| Limitations | Manufacturer-published SAR reduction (96%) is not independently verified by EMF Practical. Shielding is one-sided by design -- check you're using the correct orientation (between body and phone) for it to work as intended. Available in 3 sizes; measure your phone before ordering. | This works on the same unverified "field modification" principle as other EMF harmonizing products EMF Practical has flagged (e.g. Blushield): it does not claim to physically block or reduce measured EMF, has no comparable dB or SAR figure, and its effects have not been independently tested by EMF Practical. If you want a shielding product with a testable metric instead, see the BlocSock case. |
| Product page | View & order → | View & order → |
Specification comparison, not a hands-on review. Current prices, shipping and returns must be confirmed with the provider.