Cleared Traditional

K133872 - ARIA WIFI SMART SCALE (FDA 510(k) Clearance)

Class II Gastroenterology & Urology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K133872 · Fitbit, Inc. · Gastroenterology & Urology device
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Jun 2014
Decision
164d
Days
Class 2
Risk

K133872 is an FDA 510(k) clearance for the ARIA WIFI SMART SCALE. Classified as Analyzer, Body Composition (product code MNW), Class II - Special Controls.

Submitted by Fitbit, Inc. (Fairfax, US). The FDA issued a Cleared decision on June 2, 2014 after a review of 164 days - an extended review cycle.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 870.2770 - the FDA gastroenterology and urology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Gastroenterology & Urology review framework, consistent with the majority of Class II 510(k) submissions.

View all Fitbit, Inc. devices

Submission Details

510(k) Number K133872 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 20, 2013
Decision Date June 02, 2014
Days to Decision 164 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
34d slower than avg
Panel avg: 130d · This submission: 164d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code MNW Analyzer, Body Composition
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.2770
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Gastroenterology & Urology devices follow this clearance model.