The core of any InMode vs. ONDA lifting comparison is the layer the energy reaches and how fat is handled. InMode delivers RF energy to the fascia (SMAS) layer, aiming for fat reduction, collagen production and tightening at once. ONDA uses microwave Coolwave™ technology to minimize damage to the epidermis while targeting the dermis and subcutaneous fat layer together, encouraging fat destruction and collagen regeneration. Which one suits you is decided after measuring fat distribution and the degree of sagging, and you can check this in the 4 steps below.

STEP 1. Measure Your Starting Point with a Diagnostic Protocol
Lifting treatments start from diagnostic results rather than from the name of a device. The InMode vs. Shrink comparison material also recommends measuring the skin's condition through diagnostics before deciding on a treatment. A typical diagnostic sequence is as follows.
- Confirm your concerns: List the areas you want to improve, such as the jawline, cheeks or under the chin, and their priority.
- Measure skin condition: Firmness and the degree of sagging are measured to set a baseline.
- Distinguish fat distribution: Determine whether the issue is mostly sagging or whether there is also fat under the chin.
- Review history: Previous treatments, medications you are taking and any skin conditions are checked.
- Narrow the candidates: Based on the results, the candidates are narrowed among InMode, ONDA, Ulthera and Shrink Universe.
Repic Clinic in Gangnam offers these four lifting devices, so candidates can be compared side by side according to your diagnostic results.
STEP 2. Compare How InMode and ONDA Work
- InMode: It uses bipolar RF with vacuum suction. The energy reaches the fascia (SMAS) layer and is used for improving a double chin, jawline and cheeks. It is described as an FDA-approved device.
- ONDA: It uses microwave Coolwave™. It minimizes damage to the epidermis and targets the dermis and subcutaneous fat layer together.
Both devices are alike in that they address fat and collagen together. The differences come from the energy type and the layer they act on.
STEP 3. Set Selection Criteria Based on the Balance of Fat and Sagging
- If both fat under the chin and sagging are concerns, InMode is a candidate to consider.
- If you want to address fat in the dermis and subcutaneous fat layer while reducing the burden on the epidermis, consider ONDA.
- If sagging is the main issue and you want to reduce downtime, also compare Shrink Universe (HIFU) or Ulthera (ultrasound, with DeepSee™ real-time imaging).
Approval status differs by device, so it is a good idea to confirm it at a consultation before treatment.
STEP 4. Decide on Sessions, Intervals and Precautions
According to the InMode vs. Shrink comparison material, it is hard to judge the effect of either treatment from a single session, and the number of sessions is usually adjusted at intervals of 2 to 4 weeks. The number of sessions and interval for ONDA should be explained at a consultation based on diagnostic results. Temporary redness or a feeling of warmth may appear after energy-based treatments, so it is important to tell your doctor beforehand about any medications and your skin condition.
InMode vs. ONDA at a Glance
| Item | InMode | ONDA |
|---|---|---|
| Energy type | Bipolar RF + vacuum suction | Microwave Coolwave™ |
| Target layer | Up to the fascia (SMAS) layer | Dermis and subcutaneous fat layer |
| Direction of action | Fat reduction, collagen production, tightening | Fat destruction, collagen regeneration |
| Features | FDA-approved device, short downtime | Minimizes damage to the epidermis |
Following this order lets you complete an InMode vs. ONDA lifting comparison based on your own fat distribution and degree of sagging rather than on device names.
Frequently Asked Questions
Which is more effective, InMode or ONDA?
It cannot be said that one is better than the other. InMode acts up to the fascia (SMAS) layer and ONDA mainly on the dermis and subcutaneous fat layer, so they suit different needs. The choice is made after measuring fat distribution and the degree of sagging, and results vary from person to person.
Is InMode an FDA-approved device?
Repic Clinic in Gangnam describes InMode as an FDA-approved device. The approval status of other devices, including ONDA, differs by device and should be confirmed at a consultation.
Is one session enough?
The InMode vs. Shrink comparison material explains that it is hard to judge the effect from one session. The number of sessions is usually adjusted at intervals of 2 to 4 weeks, and the specific plan is set after diagnostics.
Why is a pre-treatment diagnosis necessary?
Because the suitable treatment differs depending on whether the issue is mostly sagging or whether fat is also present. Measuring the skin's condition through diagnostics allows candidates among InMode, ONDA, Ulthera and Shrink Universe to be compared on a sound basis.

Source: Repic Clinic in Gangnam service guide, InMode vs. Shrink comparison guide. For detailed treatment information, please check the official page and a consultation. Location: B1 and 2nd floor, 318 Gangnam-daero, Gangnam-gu, Seoul.
Official Information
You can find more details on the clinic's official site.
Repic Clinic in Gangnam (English site) →
※ This content is for general information only and does not replace a medical diagnosis or treatment. Please consult a medical professional before any procedure. Results, downtime and side effects vary from person to person.

