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Facial Stiffness, Double Chin, Local Fat – How to Improve? REVINAS vs. Onda vs. InMode FX – Which Is Better?

2026-07-28 20 min read Skin Care

If you’re struggling with these issues and feeling more confused after searching online – you’re not alone. The market is flooded with facial rejuvenation and body‑contouring devices, but only a few truly address the three core pain points of “facial stiffness + double chin + local fat” simultaneously: REVINASOnda, and InMode FX.

All are non‑invasive, no incisions, no downtime – but their technologies, indications, and effect priorities are completely different. To help you figure it out once and for all, I’ve put these three devices side‑by‑side in a full comparison. After reading, you’ll know exactly which one solves your problem.

Quick Takeaway:

✅ Facial stiffness, unclear contours → choose REVINAS (physical release, improves circulation)

✅ Double chin, stubborn belly fat, cellulite → choose Onda (precise microwave fat reduction)

✅ Both fat and laxity (fat + loose skin) → choose InMode FX (RF lipolysis + tightening in one)

Technical Principles: Three Energies, Three Logics

All three are non‑invasive, but their underlying technologies are fundamentally different. Understand the principle, and you’ll know what each excels at.

🔹 REVINAS – High‑intensity focused shockwaves (physical repair)

Made in Germany, it uses shockwaves, not lasers or RF. The energy penetrates deep to loosen stiff, adhered fibrotic tissues (e.g., from chronic tension, thread lifts, or residual lumps from fillers), while stimulating microcirculation and collagen remodelling. In simple terms, it “massages” your tight face back to a natural contour. Best of all, it’s nearly painless – most people only feel mild pressure.

🔹 Onda – Coolwaves™ microwave lipolysis (precise fat targeting)

From Italy’s DEKA, it uses 2.45GHz microwave energy that is highly absorbed by fat cells, generating heat that induces adipocyte apoptosis. An intelligent cooling system keeps the skin surface at 15‑25°C, protecting the epidermis. It essentially “cooks” fat cells from the inside out, and the body eliminates them naturally. Highly effective for double chin, abdomen, thighs, and arms.

🔹 InMode FX – Bipolar RF + vacuum suction (lipolysis + tightening)

From Israel’s InMode, it combines bipolar radiofrequency with vacuum suction. The vacuum first “suctions” the fatty tissue, then RF precisely heats the deeper layers, achieving fat reduction while stimulating collagen neogenesis to tighten skin. Ideal for post‑weight‑loss skin laxity, and offers relatively higher cost‑effectiveness.

Dimension Comparison: See All Differences in One Table

Dimension REVINAS Onda InMode FX
Core Technology High‑intensity focused shockwave (physical energy) Coolwaves™ microwave (2.45GHz) Bipolar RF + vacuum suction
Primary Indications Facial stiffness, vague contours, puffiness, neck/shoulder tightness Double chin, stubborn fat on abdomen/flanks/thighs, cellulite Double chin, undefined jawline, postpartum belly laxity, bat wings
Mechanism Shockwaves release fibrotic tissue → improve circulation → natural lift Microwave heats fat cells → apoptosis → lymphatic elimination RF heats fat + dermis → lipolysis + collagen neogenesis
Depth of action Subcutaneous tissue, fascia layer Subcutaneous fat up to 15mm Dermis + fat layer
Pain & Comfort Nearly painless, mild pressure Warm sensation, cooling system ensures high comfort Warm + suction sensation; FX mode may have mild sting
Applicable Areas Facial contours, nasolabial folds, marionette lines, neck/shoulders Face (double chin) + body (abdomen, flanks, thighs, arms) Face (double chin, jawline) + body (abdomen, thighs, arms)
Recommended Course Once every 2 weeks, 5‑10 sessions per course 3‑4 sessions per course Once every 3‑4 weeks, total of 3 sessions
Duration of results Gradual improvement, can last 1‑2 years (with maintenance) Single session ~1 month; multiple sessions can extend to 6+ months Optimal after 3 sessions, lasts about 8‑12 months
Price range (Korean market) ~300,000 – 500,000 KRW / session ~400,000 – 600,000 KRW / session ~70,000 – 250,000 KRW / session
Downtime None – resume normal life immediately None – resume normal life immediately None – mild redness subsides within hours

Technical Parameters Quick Reference

Parameter REVINAS Onda InMode FX
Manufacturer ByerGantz (Germany) DEKA (Italy) InMode (Israel)
Energy type Shockwave (physical) Microwave (2.45GHz) Bipolar RF
Contains anaesthetic No (anaesthesia not needed) No (anaesthesia not needed) No (anaesthesia not needed)
CE/FDA cleared Yes Yes (CE) Yes
Treatment areas Primarily face Face + body Face + body

Side Effects and Risks

REVINAS: Virtually no side effects; some may feel mild pressure that fades quickly. As a physical shockwave without heat, it has an extremely high safety profile.

Onda: Localised mild redness or warmth that resolves within hours. The cooling system protects the epidermis, making burns very unlikely. Note: Onda only “reduces fat” – if skin elasticity is poor, some laxity may remain after fat loss.

InMode FX: The FX mode may cause bruising and swelling – more noticeable on thin skin or prominent capillaries, usually fading in 3‑5 days. Avoid saunas and strenuous exercise for a few days post‑treatment.

⚠️ Pro tips to avoid pitfalls:

  • Always choose a certified clinic and confirm the device is genuine.
  • Get a thorough consultation with a qualified doctor to assess suitability.
  • After treatment, focus on hydration and sun protection; avoid high‑temperature environments.

Selection Advice: Match Your Symptoms

〖 REVINAS 〗Stiff / contour
  • Facial stiffness, tight expression, blurry contours
  • Post‑filler or thread‑lift hardness or unnatural feel
  • Facial puffiness, poor lymphatic circulation
  • Extremely pain‑sensitive, seeking a comfortable experience
〖 Onda 〗Stubborn fat
  • Prominent double chin, unclear jawline
  • Stubborn local fat on abdomen, thighs, arms
  • Cellulite (dimpled, uneven skin texture)
  • Normal weight but with local fat deposits that won’t budge
〖 InMode FX 〗Fat + laxity
  • Local fat accumulation + skin laxity simultaneously
  • Post‑partum abdominal looseness, flabby arms after weight loss
  • Limited budget, looking for a cost‑effective entry option
  • Excess facial fat, wanting to improve double chin

Combination Therapy Advice

The three devices can be combined for even better results:

  • For facial concerns: REVINAS (release tissue) + InMode FX (tighten and reduce fat) → clearer, more natural contours.
  • For body concerns: Onda (reduce fat) + InMode FX (tighten) → prevents “post‑reduction sagging”.
  • Full rejuvenation: REVINAS for face, Onda or InMode FX for body – each plays its role.

Please consult your doctor for the exact interval and combination plan.

Conclusion

REVINAS is the “physical release” device – specifically for facial stiffness and vague contours; Onda is the “microwave lipolysis” device – targeting stubborn fat and cellulite; InMode FX is the “RF contouring” device – dual‑action lipolysis + tightening with excellent value.

✅ Quick rule of thumb: stiff face → REVINAS; thick fat → Onda; fat + loose → InMode FX.

Disclaimer: This article is compiled from public information and clinical literature for reference only and does not constitute medical advice. All aesthetic procedures carry individual variation and potential risks. The final plan should be based on a professional in‑person consultation with a qualified physician.

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