The short answer
Healthy Wave Multi-Wave is the better choice: a real PEMF mat with published frequency and intensity, plus far-infrared heat and red light, for $995–$2,495. Qi Coil is built on Rife-frequency and “scalar energy” claims with no credible evidence and no published PEMF specs, and costs $797–$9,995. Qi Coil wins only on portability.
| | Healthy Wave Multi-Wave | Qi Coil | |---|---|---| | What it is | PEMF mat + infrared + red light | Portable Rife/“scalar” frequency coil | | Published PEMF specs | Yes: 1–30 Hz, 6 waveforms, gauss figures | No: “10,000+ frequencies”, claimed ~15 gauss | | Evidence | General PEMF literature; no trials of this mat | No credible evidence for Rife or “scalar” claims | | Price | $995–$2,495 by size | $797 (Mini) to $9,995 (Max Scalar) | | Portable | No, full-body mat | Yes | | Warranty / trial | 5-year limited, 90-day trial | — |
Choose Healthy Wave Multi-Wave if…
- you want PEMF you can check against the research;
- you like having heat and red light in the same session;
- you want full control over frequency, pulse width and intensity.
Full details in our Healthy Wave Multi-Wave review.
Choose Qi Coil if…
- you want a portable frequency gadget for subjective, ritual use;
- you accept that its core claims are not supported by evidence.
Full details in our Qi Coil review.
What does the evidence say?
For consumer PEMF in general, the best-studied everyday use is joint pain: a Cochrane review of small trials in knee osteoarthritis found electromagnetic field therapy may reduce pain moderately (Li 2013). Claims about sleep, energy or “detox” are not well supported, and with a heated mat much of what you feel is likely the warmth. Rife machines have no reliable evidence behind them (Cancer Research UK).
Related comparisons
Healthy Wave vs HigherDOSE PEMF Mat, Bemer vs Healthy Wave, or the full best PEMF devices of 2026.
Sources
- Li S et al. (2013). Electromagnetic fields for treating osteoarthritis. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD003523.pub2
- Cancer Research UK — Rife machine and cancer
- Healthy Wave — official site and Qi Coil — official store (prices), checked 2026-10-03