510(k) Report

510(k) · Cleared

Cleared

E-Fit Infinity System (EF-2090 Controller and EF-100 Unit)

K202148510(k) TraditionalCleared Aug 25, 2021387-day reviewClass II21 CFR 890.5850

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Fit-Pro, Ltd. · NGX Stimulator, Muscle, Powered, For Muscle Conditioning

Cleared on Aug 25, 2021 as substantially equivalent to K133225 (Fit-Pro Kft, Ltd., 2014) after a 387-day review. Its family tree reaches back 3 generations to 1994. 1 later device descends from it.

Decided
Aug 25, 2021
Review
387 days
Class
Class II
Product code
NGX
Recalls
None
Predicates
1

Its longest line of descent runs back 3 generations to K940301 (1994). 1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2026: 1 descendant clearedK940301 · Compex 2 · Biodex Medical Systems, Inc. · 1994K011880 · Compex Sport · Compex S.A. · 2002K133225 · E-Fit EF-1280 Ems Machine · Fit-Pro Kft, Ltd. · 20141990200020102020
  1. Root · 3 generations backK940301 Compex 2Biodex Medical Systems, Inc. · 1994
  2. 2 generations backK011880 Compex SportCompex S.A. · 2002
  3. 1 generation backK133225 E-Fit EF-1280 Ems MachineFit-Pro Kft, Ltd. · 2014
  4. This deviceK202148 E-Fit Infinity System (EF-2090 Controller and EF-100 Unit)Fit-Pro, Ltd. · 2021
  5. Descendant · cites it directly · 0 of its ownK260945 Ultima System (UL-800);Ultimate Face Package…Fit-Pro KFT (Ltd.) - DBA E-Fit · 2026

Most influential descendants

Showing 1 of 1 · See all
  • K260945Ultima System (UL-800);Ultimate Face Package (UL-800-Face-Set);Ultimate Shape Extension…Fit-Pro KFT (Ltd.) - DBA E-Fit · 2026 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K940301Compex 2Biodex Medical Systems, Inc.1994—
−2K011880Compex SportCompex S.A.2002—
−1K133225E-Fit EF-1280 Ems MachineFit-Pro Kft, Ltd.2014—
0 (this device)K202148E-Fit Infinity System (EF-2090 Controller and EF-100 Unit)Fit-Pro, Ltd.2021—
+1K260945Ultima System (UL-800);Ultimate Face Package (UL-800-Face-Set);Ultimate Shape…Fit-Pro KFT (Ltd.) - DBA E-Fit2026—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202610
FIG. 1 — Lineage of K202148, 1994–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in NGX? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new NGX device

  1. #1 K250146 SofWave Systemscore 15.5 · 12 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K133225E-Fit EF-1280 Ems Machine
Summary page 4
…gally marketed device: E-FIT EF-1280 EMS MACHINE Manufacturer: Fit-Pro Ltd. 510(k) number: K133225 Page 1 of 12 4. Descr…
Fit-Pro Kft, Ltd.2014—

Also cleared against K133225: 6 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K260945Ultima System (UL-800);Ultimate Face Package (UL-800-Face-Set);Ultimate Shape Extension…Fit-Pro KFT (Ltd.) - DBA E-Fit20260

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 27 years and passes through 4 companies; a new generation was cleared every 7.3 years on median.
  • None of the 3 ancestors has a recall.
  • Of its descendants, K260945 (Fit-Pro KFT (Ltd.) - DBA E-Fit, 2026) has gone furthest, with 0 descendants of its own.
  • 6 other devices also cite its predicate K133225.

How does its category compare?

All NGX devices

NGX Stimulator, Muscle, Powered, For Muscle Conditioning: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.

FDA decisions per year · NGX

15in 2025

2007: 72008: 32009: 42010: 62011: 52012: 32013: 62014: 62015: 92016: 42017: 102018: 62019: 142020: 112021: 122022: 62023: 122024: 122025: 152026 (partial year): 4
2007high 15 (2025) · low 3 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NGX

93in 2025

2007: 135 days median2008: 209 days median2009: 132 days median2010: 180 days median2011: 291 days median2012: 362 days median2013: 269 days median2014: 298 days median2015: 184 days median2016: 240 days median2017: 108 days median2018: 104 days median2019: 167 days median2020: 207 days median2021: 256 days median2022: 307 days median2023: 96 days median2024: 207 days median2025: 93 days median2026 (partial year): 118 days median
2007high 362 (2012) · low 93 (2025)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · NGX

2in 2013

2013: 2
2007high 2 (2013) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · NGX

15in 2025

2011: 12013: 12015: 72016: 212017: 22018: 62019: 42020: 72021: 52022: 72023: 82024: 112025: 15
2007high 21 (2016) · low 0 (2007)2025

MAUDE reports naming product code NGX, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
2007713500
2008320900
2009413200
2010618000
2011529101
2012336200
2013626921
2014629800
2015918407
20164240021
20171010802
2018610406
20191416704
20201120707
20211225605
2022630707
2023129608
202412207011
20251593015
202641180—

What is it indicated for?

The E-Fit Infinity System is designated to prescription use (Rx) only. E-Fit Infinity system (EF-2090 and EF-100) is a machine system with electronic muscle stimulation based on EMS technology. Regarding its use, the output power is limited and specifically designed as an addition to other sports and for toning muscles. It may only be used for healthy muscles and clients, and not to be used for rehabilitation purposes. The E-Fit Infinity system was…

Read the full statement (245 words)

The E-Fit Infinity System is designated to prescription use (Rx) only.

E-Fit Infinity system (EF-2090 and EF-100) is a machine system with electronic muscle stimulation based on EMS technology. Regarding its use, the output power is limited and specifically designed as an addition to other sports and for toning muscles. It may only be used for healthy muscles and clients, and not to be used for rehabilitation purposes.

The E-Fit Infinity system was designed to stimulate healthy muscles in order to improve or facilitate muscle performance. The E-Fit Infinity system must not be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the E-Fit Infinity system training programs is designed for injured or ailing muscles and its use on such muscles is contraindicated.

The E-Fit Infinity system's electrical impulses allow the triggering of action potentials on motoneurones of motor nerves (excitations). These excitations of motoneurones are transmitted to the muscle fibers via the motor endplate where they generate mechanical muscle fiber responses that correspond to muscle work. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, total session duration), different types of muscle work can be imposed on the stimulated muscles.

The various types of muscle work that the E-Fit Infinity system can impose on the stimulated muscles are able to improve or facilitate muscle performance. The E-Fit Infinity system may therefore be considered a technique of muscle training.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K202148: E-Fit Infinity System (EF-2090 Controller and EF-100 Unit).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K202148

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026