510(k) Report

510(k) · Cleared

Cleared

Gymform Total ABS

K202653510(k) TraditionalCleared Jan 15, 2021123-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

Well Brain International, Ltd. · NGX Stimulator, Muscle, Powered, For Muscle Conditioning

Cleared on Jan 15, 2021 as substantially equivalent to K130074 (Well Brain International, Ltd., 2013) after a 123-day review. Its family tree reaches back 7 generations to 2001.

Decided
Jan 15, 2021
Review
123 days
Class
Class II
Product code
NGX
Recalls
None
Predicates
1

Its longest line of descent runs back 7 generations to K010335 (2001). 24 ancestors in all, the oldest K940301 (1994). No later device cites it as a predicate yet.

  1. Root · 7 generations backK010335 Slendertone Flex, Model, 512Bio-Medical Research, Ltd. · 2001
  2. 6 generations backK022855 Slendertone Flex Bottom & Thigh Toning System, Type 511Bio-Medical Research, Ltd. · 2003
  3. 5 generations backK070142 Slendertone System Abs, Models 390, E10, X10; Slendertone System…Bio-Medical Research Corp. · 2007
  4. 4 generations backK072553 System-Arms, Model 390,E60Bio-Medical Research, Ltd. · 2007
  5. 3 generations backK091865 Sport-Elec Body Control SystemSport-Elec · 2009
  6. 2 generations backK092476 Sport-Elec Body Control System, Model 4MSport-Elec · 2010
  7. 1 generation backK130074 Gymform Abs-a-RoundWell Brain International, Ltd. · 2013
  8. This deviceK202653 Gymform Total ABSWell Brain International, Ltd. · 2021
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K010335Slendertone Flex, Model, 512Bio-Medical Research, Ltd.2001—
−6K022855Slendertone Flex Bottom & Thigh Toning System, Type 511Bio-Medical Research, Ltd.2003—
−5K070142Slendertone System Abs, Models 390, E10, X10; Slendertone System Shorts…Bio-Medical Research Corp.2007—
−4K072553System-Arms, Model 390,E60Bio-Medical Research, Ltd.2007—
−3K091865Sport-Elec Body Control SystemSport-Elec2009—
−2K092476Sport-Elec Body Control System, Model 4MSport-Elec2010—
−1K130074Gymform Abs-a-RoundWell Brain International, Ltd.2013—
0 (this device)K202653Gymform Total ABSWell Brain International, Ltd.2021—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199410
200210
200310
200430
200510
200720
200810
201010
201120
201230
201310
FIG. 1 — Lineage of K202653, 2001–2021Source: 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
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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
*K130074Gymform Abs-a-Round
Summary page 5
…1|Page K202653 4. Predicate and Reference Device Information 510k K130074 K102295 K092476 K183674 Number (Primary (Reference (Reference…
Well Brain International, Ltd.2013—
†K102295X2ABS Dual Channel Fitness BeltLeto Enterprises Incorporation2011—
†K092476Sport-Elec Body Control System, Model 4MSport-Elec2010—
†K183674Electronic Pulse StimulatorShenzhen Leading Perfection Technology Co., Ltd.2019—

Also cleared against K130074: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

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 20 years and passes through 4 companies; a new generation was cleared every 1.9 years on median.
  • None of the 24 ancestors has a recall.
  • 1 other device also cites its predicate K130074.

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 Gymform® TOTAL ABS (Model: WB-245) is intended to stimulate healthy muscles in order to improve or facilitate muscle performance.

The large belt is intended for use on the muscles in abdomen. The small belt for working the leg and arm muscles, intended for use on the muscles in arms, legs (lower extremities) and thighs areas separately.

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. “K202653: Gymform Total ABS.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K202653

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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