Blushield Phi Φ1 Portable
The Blushield Φ1 delivers reliable protection for one person on the move, built for travel and time between protected zones. Its triple-band scalar output runs from a black ABS plastic case that slips into a pocket or bag and recharges via USB-C (not included) for up to 4 days. Pairs with any plug-in unit in the Phi range, Φ2, Φ3, or Φ4.
Portable
Compare the range
| Portable | |||||
|---|---|---|---|---|---|
| Usage | Low to medium EMF exposure | Moderate to high EMF exposure | Moderate to high EMF exposure | High to extreme EMF exposure | — |
| Coverage | 1 per person | 1 per person | 1 per person | 1 per person | 1 per person |
| Scalar Output Bands | Triple band | Triple band | Triple band | Quadruple band | Triple band |
| Frequency Waves | Not applicable | Delta, Theta | Alpha, Beta | Alpha, Beta, Gamma | Alpha, Beta |
| Protects From | All EMFs including wide band 5G exposure | All EMFs including wide band 5G exposure | All EMFs including wide band 5G exposure | All EMFs including wide band 5G exposure | Mobile phones, Wi-Fi, 3G, 4G, 5G and other EMF sources |
| Target User | General use | Neurodivergent, EHS | Neurotypical | Neurotypical | Everyday, on the go |
| Battery Life (approx.) | Up to 4 days | 7+ days | 7+ days | 10+ days | Up to 2 days |
| Battery Charge Time (approx.) | — | Under 3 hrs | Under 3 hrs | Under 3 hrs | — |
| Battery Size | 350 mAh | 1000 mAh | 1000 mAh | 2000 mAh | 400 mAh |
| Case Material | Black matte ABS plastic, stainless-steel-lined lanyard hole | Aircraft alloy, matte red finish | Aircraft alloy, metallic grey finish | Aircraft alloy, matte black finish | Black Alloy case with a TPU black strap |
| Size (mm) | 90 x 30 x 11 | 100 x 60 x 9 | 100 x 60 x 9 | 100 x 60 x 14 | 54 diameter x 12 thick |
| Weight | 35 g | 87 g | 87 g | 117 g | 40 g |
| Features | Compact, lightweight, lanyard hole, USB-C. Charger not included. | Calming effect, battery indicator, durable, USB-C. Charger not included. | New modulation, battery indicator, durable, USB-C. Charger not included. | Most powerful portable, battery indicator, USB-C. Charger not included. | Wearable watch, 5 faces, no Bluetooth/Wi-Fi, magnetic USB-C, airplane safe. Charger not included. |
The evidence
Participants used Blushield in their own homes while a range of health markers were tracked. They recorded improvements across sleep, heart rate variability and cognitive performance, with no adverse events reported. The study was single-arm, with no comparison group (D'Adamo et al., 2024, n=25).
Deeper sleep
Sleep duration increased (P < 0.04), alongside measurable changes in resting heart rate and body temperature.
Improved HRV
Heart rate variability improved (P < 0.04). HRV is a measure of nervous system adaptability and recovery capacity.
Improved cognition
Cognitive performance improved across composite memory, cognitive flexibility, executive function and processing speed (P < 0.02).
Safe
No adverse events were reported, with 100% participant compliance across the 12 weeks.
Reviews
4.9
214 reviews
Sleep has transformed for the whole household. The pyramid looks beautiful on the sideboard too — it doesn't look like tech.
Upgraded from the Cube and the difference in a larger home is noticeable. Worth the investment for whole-home cover.
Plugged it in and forgot about it — exactly what I wanted. Felt calmer within the first week.
